STATE BUDGET EDUCATIONAL INSTITUTION
PROFESSIONAL EDUCATION OF THE CITY OF SEVASTOPOL
"SEVASTOPOL INDUSTRIAL AND TECHNOLOGICAL
COLLEGE NAMED AFTER MARSHAL OF ENGINEERING FORCES A.V. GELOVANI"
TESTS
for theoretical classes on MDK 01.02 “Design, maintenance and repair of motor vehicles”
Profession: 01/23/03 “Auto mechanic”
MDK 01.01 “Car design”
Specialty: 02.23.03 “Maintenance and repair of motor vehicles”
Topic: Ignition system
Developed by Minaev N.A.
Sevastopol
2016
Tests for theoretical classes on the topic “Ignition System”, which is part of the MDK 01.02 “Design, maintenance and repair of motor vehicles” of the profession 01.23.03 “Auto mechanic” and MDK 01.01 “Design of automobiles” of the specialty 02.23.03 “Maintenance and repair of automobiles” transport".
The purpose of these tests is to reinforce to students the knowledge acquired by studying theoretical material on the topic “Ignition System”, which is part of MDK 01.02 “Design, maintenance and repair of motor vehicles” of the profession 01.23.03 “Auto mechanic” and MDK 01.01 “Design of automobiles” specialty 02.23.03 “Maintenance and repair of motor vehicles.”
The tests are compiled in accordance with the requirements of the program of the professional module PM.01 “Maintenance and repair of motor vehicles” of the profession 01.23.03 “Auto mechanic” and PM.01 “Maintenance and repair of motor vehicles” of the specialty 23.02.03 “Maintenance and repair of motor vehicles » full-time education.
Developer organization: State budgetary educational institution of vocational education of the city of Sevastopol “Sevastopol Industrial and Technological College named after Marshal of Engineering Troops A.V. Gelovani"
Developer: teacher Minaev N.A.
1. List the elements included in the electronic ignition system:
a) ignition coil
c) capacitor
d) candlestickd) candles
e) high-voltage wires
2. What electrical circuit does the breaker contacts open?
a) the primary circuit of the ignition coil winding
b) secondary circuit of the ignition coil winding
c) field winding circuit
3. Depending on what parameters does the vacuum regulator change the ignition timing?
a) crankshaft rotation speed
b) changes in voltage in the ignition coil circuit
c) changes in engine load
d) from all specified parameters
4. Which ignition system device provides the conversion of low voltage current to high voltage current?
a) ignition coil
b) breaker-distributor
c) spark plugs
5.what voltage occurs in the secondary winding of the coil?
a) 220 Vb) 380 Vc) 30,000 V6. Where does the high voltage current from the ignition coil go next?
a) to the central contact of the distributor cap
b) to the breaker contacts
c) to spark spark plugs
7. How does the ignition timing change when the engine load decreases?
a) will increase
b) will decrease
c) will not change
8. Depending on what parameters does the centrifugal ignition timing regulator of the chopper-distributor change the ignition timing?
a) power loads on the engine
b) speed parameters
c) octane number of gasoline
d) all named parameters
9. Where does the current flow from the contacts of the breaker-distributor?
a) to the primary winding of the ignition coil
b) to the secondary winding of the ignition coil
c) to the capacitor
d) to all named devices
10. When does a spark occur at the spark plug electrodes?
a) when current is supplied to the capacitor circuit
b) when closing the contacts of the breaker-distributor
c) when the contacts of the breaker-distributor open
d) in all of the above cases
11. Which device changes the ignition timing depending on the engine load?
a) octane corrector
b) capacitor
c) vacuum regulator
d) centrifugal regulator
12. How does a centrifugal regulator change the ignition timing?
a) by the driver manually, turning the breaker body
b) automatically, using centrifugal weights
c) both ways
13. At what angle will the distributor rotor rotate in a 4-stroke 4-cylinder engine if the crankshaft makes one revolution?
a) 15 degrees d) 270 degrees
b) 45 degrees) 360 degrees
c) 90 degreesg) 540 degrees
d) 180 degreesh) 720 degrees
Answers to test tasks
1 – g, d;
2 – a;
3 – in;
4 – a;
5 – in;
6 – a;
7 – b;
8 – b;
9 – a;
10 – in;
11 – in;
12 – b;
13th century
Evaluation criteria
Rating “unsatisfactory” – 7 correct answers or less
Rating “satisfactory” – 8-10 correct answers
Rating “good” – 11-12 correct answers
“Excellent” rating – 13 correct answers
List of references Gladov G.I. The structure of cars: a textbook for students. institutions prof. education / G.I. Gladov, A.M. Petrenko. – 3rd ed., erased. – M.: Publishing Center “Academy”, 2014. – 352 p.
Pekhalsky A.P. The structure of cars: a textbook for students. institutions prof. education / A.P. Pekhalsky, I.A. Pehalsky. – 8th ed., rev. – M.: Publishing Center “Academy”, 2013. – 528 p.
1.What process occurs in the battery?
Standard: c.
2.What are the causes of battery plate short circuit? ______________________________________________________________________________________________________________________________________________________________
3.What should the electrolyte level be in the battery?
a) 10-20 mm higher than the plates;
b) 10-15 mm higher than the plates;
c) 20-25 mm higher;
d) 8-12 mm higher than the plates.
Standard: b.
4.Write the candle label A11NT ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________
5.The more the battery is charged, the...
a) it contains more water and sulfuric acid
b) it contains less water and sulfuric acid
c) it contains more water and less sulfuric acid
d) it contains less water and more sulfuric acid
Standard: (b)
6.The electrolyte of a fully charged battery has a density of about...
a) 1.0 g/cm2
b) 1.1 g/cm2
c) 1.2 g/cm2
d) 1.3 g/cm2
Standard: (d)
7.Which metal is most widely used in the manufacture of batteries installed on modern cars?
b) Lead
d) Aluminum
Standard: (b)
8.The unit of measurement for battery power is...
Standard: (b)
9.What process occurs in the battery?
a) chemical energy is converted into electrical energy;
b) electrical energy is converted into chemical energy;
c) electrical energy is converted into chemical energy, and chemical energy into electrical energy.
Standard: c.
10.What are the causes of battery plate short circuit? ______________________________________________________________________________________________________________________________________________________________
Standard answer: destruction of separators; loss of a large layer of sediment.
11.What should the electrolyte level be in the battery?
a) 10-20 mm higher than the plates;
b) 10-15 mm higher than the plates;
c) 20-25 mm higher;
d) 8-12 mm higher than the plates.
Standard: b.
12.Indicate the purpose of electric starters
a) converts electrical energy into chemical energy
b) to start the engine
c) converts alternating current to direct current
Standard: b
13.Where is the coolant temperature sensor installed? ______________________________________________________________________________________________________________________________________________
14.List all the control and measuring instruments that are installed on the car. ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Questions for differentiated credit in the course "automotive"
Tests for the course "Electrical equipment of cars and tractors"
1. What electrolyte density would you choose for a battery operating in the northern regions of Russia?
1) 1,2; 2) 1,2; 3) 1,29; 4) 1,4; 5) 1,6.
2. The electromotive force of one element of a lead-acid battery at rest is equal to:
1) 1 V; 2) 1.5V; 3) 2B; 4) 3 V; 5) 4B.
3. The excitation winding of the alternating current generator is used to: 1) create a magnetic flux; 2) heating the generator; 3) rotation of the anchor; 4) rotor rotation; 5) battery discharge.
4. The stator core of the alternating current generator is made of thin sheets of electrical steel, insulated among themselves, in order to: 1) enhance the magnetic flux; 2) increasing the focus of service; 3) reducing losses due to eddy currents (Foucault currents).
5. Alternator brushes are made of: 1) copper; 2) graphite; 3) graphite with the addition of copper; 4) lead; 5) steel.
6. A generator in automobile electrical circuits is: 1) a device only for charging batteries; 2) a device for starting the engine; 3) the main source of direct current; 4) a power source for the ignition system only; 5) a source for powering only lighting devices.
7. The voltage at the generator terminals is maintained constant using: 1) reverse current relay; 2) turn-on relay; 3) current limiter; 4) voltage regulator
8. What does the word “zener diode” mean? 1) semiconductor device for voltage stabilization; 2) you are a rectifier; 3) resistance.
9. For what purpose were transistors used in voltage regulators? 1) to reduce the current broken by the contacts; 2) as a controlled resistance; 3) to regulate the excitation current.
10. How is the car battery charged? 1) at constant current; 2) at constant voltage (14.5 V); 3) with a mixed method; 4) with alternating voltage; 5) in pulse mode.
11. How is sulfuric acid mixed with distilled water during the preparation of the electrolyte? 1) water is poured into acid; 2) pour the acid in a thin stream into the water, stirring.
12. How is the field winding turned on in starter electric motors in order to obtain the greatest torque on the armature shaft when starting the engine? 1) sequentially; 2) in parallel; 3) mixed; 4) doesn't matter.
13. For what purpose is a freewheel clutch installed in the starter drive? 1) to move the starter gear to the flywheel; 2) to increase the speed of rotation of the armature; 3) to eliminate the rotation of the starter armature from the flywheel after starting the engine; 4) to simplify the design of the starter.
14. For what purpose is a switching relay used in electrical circuits for starting an engine, which connects power to the windings of the starter traction relay? 1) create a circuit with a remote control of the starter; 2) reduce sparking in the ignition switch contacts and increase its service life; 3) simplify the electrical circuit; 4) replace the functions of the electromagnetic traction relay of the drive mechanism.
15. The main purpose of the freewheel (overrunning clutch) of the starter is: 1) to serve as a bearing between the armature shaft and the gear housing; 2) transmit torque from the starter to the engine when starting and eliminate rotation of the starter armature after starting the engine; 3) transmit rotation from the flywheel crown to the starter shaft; 4) do not interfere with the rotation of the motor shaft from the handle.
16. Indicate the main reason for reducing the starter rotation speed when starting the engine: 1) reducing the tension of the brush holder spring; 2) decrease in voltage on the battery; 3) shedding of the active mass on the battery plates.
17. Indicate the main reason if the starter does not turn on: 1) the battery pins are oxidized; 2) the battery is partially discharged; 3) the traction relay circuit is open; 4) the contact disk of the traction relay has oxidized; 5) the contacts of the traction relay have oxidized.
18. In addition to the retractor winding, the starter traction relay has: 1) an accelerating winding; 2) holding winding; 3) exciting winding; 4) series winding.
19. In the marking of the “A 20 DV” candle, the number 20 characterizes: 1) the length of the candle in mm; 2) the gap between the spark plug electrodes in mm; 3) heat number (thermal characteristics); 4) candle weight; 5) the mass of the candle.
20. In the marking of the spark plug “A 20 DV” the letter D indicates the length of the threaded part of the body, equal to: 1) 3 mm; 2) 5 mm; 3) 8 mm; 4) 10 mm; 5) 19mm.
21. In the marking of the “A 20 DV” spark plug, the letter B indicates: 1) the protrusion of the insulator cone beyond the end of the spark plug body; 2) top quality; 3) location; 4) for all engines; 5) waterproof.
22. In order for the spark plug to self-clean from carbon deposits, the temperature of the insulator cone must be within the range: 1) 10-20°C; 2) 40-60°C; 3) 80-100°C; 4) 100-120°C; 5) 400-500°C.
23. Which of the indicated candles has a higher heat rating and is considered “colder”? 1) A 11 DV; 2) A 14 DV; 3) A 17 DV; 4) A20 DV; 5) A23 DV.
24. The engine is equipped with an “A 17 DV” spark plug, but it gives glow ignition. Which candle do you choose to eliminate this deficiency? 1) A 8 DV; 2) A 11 DV; 3) A 14 DV; 4) A 17 DV; 5) A 20 DV.
25. What size of the gap (in mm) is recommended between the spark plug electrodes? 1) 0.1-0.2; 2) 0.2-03; 3) 03-0.4; 4) 0.5-0.6; 5) 0.6-0.8.
26. In the classical ignition system, the capacitor serves to: 1) form the required amplitude and shape of the voltage pulse supplied to the spark plug; 2) eliminating radio interference; 3) smoothing out secondary voltage ripples; 4) increasing the voltage on the secondary winding.
27. When installing the ignition, the piston of the first cylinder is set at the mark near TDC on the stroke: 1) exhaust; 2) inlet; 3) compression; 4) working stroke; 5) on any.
28. The centrifugal regulator is used to change the ignition timing depending on: 1) load; 2) engine shaft rotation speed; 3) composition of the combustible mixture; 4) engine temperature; 5) compression ratio.
29. The vacuum regulator changes the ignition timing depending on: 1) engine shaft speed; 2) load (throttle position); 3) engine temperature; 4) engine compression.
30. The octane corrector is used to change the ignition timing depending on: 1) load; 2) engine shaft rotation speed; 3) engine temperature; 4) octane number of gasoline; 5) engine compression.
31. The gap between the contacts of the breaker should be within: 1) 0.1-0.2 mm; 2) 0.2-03 mm; 3) 0.35-0.45 mm; 4) 1 -2 mm; 5) 3-4 mm.
32. In the contact ignition system, capacitors with a capacity of: 1) 0.01-0.02 μF are used; 2) 0.2-03 µF; 3) 1-2 µF; 4) 5-7 µF; 5) 20-30 µF.
33. The spark temperature between the electrodes reaches: 1) 10 °C; 2) 20 °C; 3) 50 °C; 4)200 °C; 5) 10000 °C.
34. The secondary voltage in the classical ignition system reaches: 1) 100V; 2) 200V; 3) 1000V; 4) 2000 V; 5) 15000-25000 V.
35. In a magneto, the current source is: 1) a battery; 2) generator with excitation from a permanent magnet.
Z6. Why is a single-wire system used in electrical systems, using the car body instead of a second wire? 1) to reduce body corrosion; 2) to save expensive wires; 3) to reduce radio interference.
37. Indicate the main disadvantage of charging a car battery at a constant voltage: 1) this method is worse than charging at a constant current; 2) the battery cannot be fully charged; 3) high current at the beginning of charging, possible warping of the plates; 4) the charging current cannot be adjusted; 5) charging control becomes more complicated.
38. In modern ignition systems when using a Hall sensor, what is the moving part?
1) magnet; 2) Hall element; 3) screen; 4) excitation coil; 5) anchor.
39. Determining the degree of rarefaction of a battery is possible by: 1) the temperature of the electrolyte; 2) electrolyte density; 3) color of the electrolyte; 4) service life.
40. The maximum useful power of the battery is observed when the load resistance is equal: 1) infinity; 2) much greater than the value of internal resistance; 3) much less than the value of internal resistance; 4) internal resistance.
41. Explain why at the moment of starting the engine the starter consumes the greatest current?
42. Why do the retracting and holding windings of the starter traction relay have the same number of turns and are connected counter-currently?
43. When the starter is turned on, the traction relay is activated, but the armature does not rotate. Explain what the faults are.
44. Why is the stator winding of the generator made three-phase?
45. Why does the generator voltage frequency change continuously?
46. 3And why does a high-voltage voltage pulse occur in the secondary winding of the ignition coil when the circuit of the primary winding of the ignition coil breaks?
Specialty: 190629 Technical operation of lifting and transport, construction, road machinery and equipment
PM01 MDK01.02 Electrical equipment of cars and tractors
Checkable Content Elements
Answer options
Correct answer
Difficulty level
Maximum score for correct execution
Estimated task completion time
DC electrical circuits. Basic relationships in it.
The current strength in the conductor...
2. Inversely proportional to the voltage at the ends of the conductor
3. Inversely proportional to the voltage at the ends of the conductor and its resistance
1. Directly proportional to the voltage at the ends of the conductor
General arrangement of electrical equipment of a car. Marking of parts.
The following semiconductor devices are used in automobile electrical equipment:
1. Semiconductor rectifiers
2. Semiconductor diodes, transistors and zener diodes
3. Semiconductor diodes, zener diodes, transistors and thermistors
LR No. 1 General diagram of electrical equipment
Which connection of consumers ensures that the same voltage is supplied to each consumer?
1. Parallel
2.Sequential
3.Mixed
1.Parallel
Classification of modern automobile generators
Generators are used in automobile and tractor engines
1. AC
3.DC current
2. Direct and alternating current
Design features of compact generators.
The key features of Bosh Compact generators are:
1. Reduced generator power
2. Reduced magnetic losses in the core, increased generator efficiency
3. Reduced rotation speed
2. Magnetic losses in the core are reduced, generator efficiency is increased
Brushless generators, liquid cooled
Liquid-cooled brushless generators are used in:
2. Passenger cars
3. Tractors, bulldozers
1. Trunk tractors, intercity buses
LR No. 2 Design of a car generator
The generator is a combination of the following elements:
2. Rotor, stator winding, relay, housing, rectifier bridge
3. Rotor, stator, regulator, housing, rectifier bridge
1. Rotor, stator winding, relay regulator, housing, rectifier bridge
Voltage regulator. Options for generator set circuits.
The voltage regulator serves for:
2. Automatic maintenance of generator voltage and current, as well as when the ambient temperature changes
3. Automatically maintain the generator voltage within specified limits when the rotor speed changes
1. Automatically maintain the generator voltage within specified limits when the rotor speed and generator current changes in load mode, as well as when the ambient temperature changes
LR No. 3 Device of relay regulators
The relay regulator contains:
2. Measuring element, comparison element, diode
3. Measuring element, capacitor, transformer
1. Measuring element, comparison element, regulating element
Device and principle of operation. Features of low-maintenance and maintenance-free batteries
The action of the battery is based on the following physical phenomena:
2. On processes associated with ionization of gases
3. On changing the magnitude of centrifugal force
1. On processes associated with the passage of electrical charges through the electrolyte
Main characteristics, classification and marking of batteries (GOST, DIN, SAE,
The main characteristics of the battery are:
1. EMF, electrolyte consumption, battery life
3. Water consumption, electrolyte, battery life
2. EMF, water consumption, battery life
LR No. 4 Study of the design features of the battery
Three stages of battery operation
1.First filling with electrolyte after manufacturing; discharge; charge
2. Discharge; charge; add electrolyte
3. Discharge; charge
1. First filling with electrolyte after manufacturing; discharge; charge
Starting system. Purpose and design of the electric starting system.
Requirements for the starting system:
1. Reliability of the starter, the ability to start confidently at low temperatures, the ability of the system to perform multiple starts within a short time2. Reliability of the starter, the ability of the system to perform repeated starts within a short time
3. Possibility of reliable starting in conditions of low temperatures, the ability of the system to perform repeated starts within a short time
1. Reliability of the starter, the ability to confidently start at low temperatures, the ability of the system to perform repeated starts within
LR No. 5 Device of electric starters
The starter consists of several elements:
1. Housing, armature, relay regulator, overrunning clutch, brush holder
3. Housing, stator, solenoid relay, overrunning clutch, brush holder
2. Housing, armature, retractor relay, overrunning clutch, brush holder
Purpose of the ignition system. Classic contact ignition system
The ignition system is designed for:
2. Ignition of gasoline engine fuel
3. Ignition of the engine fuel-air mixture
1. Ignition of the fuel-air mixture of a gasoline engine
LR No. 6 Device of electronic and contact ignition systems
Determine the general structure of ignition systems:
1. Power supply, ignition switch; energy storage, spark plugs.
2. Power supply, ignition switch; energy storage control device, wires.
3. Power supply, ignition switch; energy storage control device, energy storage device, energy distribution device among the cylinders,
high voltage wires; spark plug.
3. Power supply, ignition switch;
energy storage control device,
energy storage device, energy distribution device among cylinders,
high voltage wires;
spark plug
Transistor ignition system. Ignition system with energy storage in inductance
Establish differences in the electrical circuit of the contact-transistor ignition system and the contact ignition system:
2. Presence of a transistor
3. No capacitor
1. Presence of a transistor, absence of a capacitor
Non-contact ignition system (BSI). Microprocessor ignition system.
Indicate the advantages of an electronic ignition system over a classical one:
1. Mechanical interrupters are excluded; makes cold starting easier
3.Secondary voltage increases; ensures reliable operation of the internal combustion engine with dirty spark plugs; makes cold starting easier
2. Mechanical interrupters are excluded; secondary voltage increases; ensures reliable operation of the internal combustion engine with dirty spark plugs; makes cold starting easier
Features of low-voltage spark distribution across engine cylinders. Idle spark method.
Determine the features of an ignition system with low-voltage spark distribution across the engine cylinders:
1. Switching of high-voltage coils by electronic units; fully adjustable sparking moment depending on engine speed and load
2. Switching high-voltage coils...
SPO specialty:
Subject
Contents of the task
Answer options
Correct answer
Difficulty level
PC2.1-PC2.3
OK1-OK10
The current strength in the conductor...
2. Inversely proportional to the voltage at the ends of the conductor
3. Inversely proportional to the voltage at the ends of the conductor and its resistance
1. Directly proportional to the voltage at the ends of the conductor
1.5 min.
PC2.1-PC2.3
OK1-OK10
The following semiconductor devices are used in automobile electrical equipment:
1. Semiconductor rectifiers
2. Semiconductor diodes, transistors and zener diodes
3. Semiconductor diodes, zener diodes, transistors and thermistors
1.5 min.
LR No. 1
PC2.1-PC2.3
OK1-OK10
Which connection of consumers ensures that the same voltage is supplied to each consumer?
1. Parallel
2.Sequential
3.Mixed
1.Parallel
1.5 min.
Classification of modern automobile generators
PC2.1-PC2.3
OK1-OK10
Generators are used in automobile and tractor engines
1. AC
3.DC current
2. Direct and alternating current
1.5 min.
Design features of compact generators.
PC2.1-PC2.3
OK1-OK10
The key features of Bosh Compact generators are:
1. Reduced generator power
2. Reduced magnetic losses in the core, increased generator efficiency
3. Reduced rotation speed
2. Magnetic losses in the core are reduced, generator efficiency is increased
2 minutes.
PC2.1-PC2.3
OK1-OK10
Liquid-cooled brushless generators are used in:
2. Passenger cars
3. Tractors, bulldozers
1. Trunk tractors, intercity buses
1.5 min.
generator
PC2.1-PC2.3
OK1-OK10
The generator is a combination of the following elements:
2. Rotor, stator winding, relay, housing, rectifier bridge
3. Rotor, stator, regulator, housing, rectifier bridge
1. Rotor, stator winding, relay regulator, housing, rectifier bridge
2 minutes.
PC2.1-PC2.3
OK1-OK10
The voltage regulator serves for:
2. Automatic maintenance of generator voltage and current, as well as when the ambient temperature changes
3. Automatically maintain the generator voltage within specified limits when the rotor speed changes
1. Automatically maintain the generator voltage within specified limits when the rotor speed and generator current changes in load mode, as well as when the ambient temperature changes
2 minutes.
LR No. 3 Relay deviceregulators
PC2.1-PC2.3
OK1-OK10
The relay regulator contains:
2. Measuring element, comparison element, diode
3. Measuring element, capacitor, transformer
1. Measuring element, comparison element, regulating element
2 minutes.
PC2.1-PC2.3
OK1-OK10
The action of the battery is based on the following physical phenomena:
2. On processes associated with ionization of gases
3. On changing the magnitude of centrifugal force
1. On processes associated with the passage of electrical charges through the electrolyte
1.5 min.
Main characteristics, classification and marking of batteries (GOST, DIN, SAE,
IEC)
PC2.1-PC2.3
OK1-OK10
The main characteristics of the battery are:
1. EMF, electrolyte consumption, battery life
3. Water consumption, electrolyte, battery life
2. EMF, water consumption, battery life
2 minutes.
battery
PC2.1-PC2.3
OK1-OK10
Three stages of battery operation
1.First filling with electrolyte after manufacturing; discharge; charge
2. Discharge; charge; add electrolyte
3. Discharge; charge
1. First filling with electrolyte after manufacturing; discharge; charge
2 minutes.
PC2.1-PC2.3
OK1-OK10
Requirements for the starting system:
1. Nreliability of the starter, the ability to start confidently in conditions of low temperatures, the ability of the system to perform multiple starts within a short time
2.
Nreliability of the starter, the ability of the system to perform repeated starts within a short time
3. Possibility of reliable starting in conditions of low temperatures, the ability of the system to perform repeated starts within a short time
1. Nreliability of the starter, the ability to reliably start in conditions of low temperatures, the ability of the system to perform repeated starts within
3 min.
PC2.1-PC2.3
OK1-OK10
The starter consists of several elements:
1. Housing, armature, relay regulator, overrunning clutch, brush holder
3. Housing, stator, solenoid relay, overrunning clutch, brush holder
2. Housing, armature, retractor relay, overrunning clutch, brush holder
1.5 min.
PC2.1-PC2.3
OK1-OK10
Ignition systemintended for:
2. Ignition of fuel
3. Ignition of the fuel-air mixture
1. Ignition of the fuel-air mixture
1.5 min.
LR No. 6 Device of electronic and contact systemsignition
PC2.1-PC2.3
OK1-OK10
Determine the general structure of ignition systems:
1. Power supply, ignition switch; energy storage, .
2. Power supply, ignition switch; energy storage control device, wires.
3. Power supply, ignition switch; energy storage control device, energy storage device, energy distribution device among the cylinders,
high voltage wires; .
3. Power supply, ignition switch;
energy storage control device,
energy storage device, energy distribution device among cylinders,
high voltage wires;
2 minutes.
PC2.1-PC2.3
OK1-OK10
Establish differences in the electrical circuit of the contact-transistor ignition system and the contact ignition system:
2. Presence of a transistor
3. No capacitor
1. Presence of a transistor, absence of a capacitor
3 min.
PC2.1-PC2.3
OK1-OK10
Indicate the advantages of an electronic ignition system over a classical one:
1. Mechanical interrupters are excluded; makes cold starting easier
3.Secondary voltage increases; ensures reliable operation of the internal combustion engine with dirty spark plugs; makes cold starting easier
2. Mechanical interrupters are excluded; secondary voltage increases; ensures reliable operation of the internal combustion engine with dirty spark plugs; makes cold starting easier
3 min.
PC2.1-PC2.3
OK1-OK10
Determine the features of an ignition system with low-voltage spark distribution across the engine cylinders:
3. Fully adjustable spark timing depending on engine speed
1. Switching of high-voltage coils by electronic units; fully adjustable sparking moment depending on engine speed and load
3 min.
PC2.1-PC2.3
OK1-OK10
Factors that determine the choice of spark plug type for a particular engine:
2. Ignition system, octane number, type of fuel system, climatic conditions of engine operation
3. Engine design, ignition system capabilities, fuel octane number.
1. Engine design, ignition system capabilities, fuel octane number, type of fuel system, climatic conditions of engine operation
1.5 min.
LR No. 7
PC2.1-PC2.3
OK1-OK10
Causes of spark plug failure:
2. Incorrect installation of spark plugs; usage a or oils
3. Excessive loads on the engine; incorrect installation of spark plugs; severe contamination of spark plugs
1. Excessive loads on the engine; incorrect installation of spark plugs; usage a or oils; severe contamination of spark plugs
1.5 min.
PC2.1-PC2.3
OK1-OK10
Name the principles on which the lighting system operates:
1. Distributions and redistributions in space of electromagnetic radiation in the optical region of the spectrum
3. Radiation generation, distribution and redistribution
2. Generation of radiation, distribution and redistribution in space of electromagnetic radiation of the optical region of the spectrum
1.5 min.
PC2.1-PC2.3
OK1-OK10
What devices on a car are classified as road lighting devices?
1. Headlights, sidelights and taillights
3. Headlights, taillights, lampshades, portable lamp
2. Headlights, fog lights and reversing lights
1.5 min.
PC2.1-PC2.3
OK1-OK10
Establish what a relay is and what does it serve?
2. A device (switch) designed to close and open various sections of electrical circuits.
3. An electrical device (switch) designed to open various sections of electrical
1. An electrical device (switch) designed to close and open various sections of electrical circuits for given changes in electrical or non-electrical input quantities.
2 minutes.
Speciality190629 Technical operation of lifting and transport, construction, road machinery and equipment
PM01 MDK01.02 Electrical equipment of cars and tractors
Subject
Checkable Content Elements
Contents of the task
Answer options
Correct answer
Difficulty level
Maximum score for correct execution
Estimated task completion time
DC electrical circuits. Basic relationships in it.
PC2.1-PC2.3
OK1-OK10
What is electric current?
2. Random movement of particles of matter.
3. A set of devices designed to use electrical resistance.
1. Ordered movement of charged particles in a conductor
1 min.
General arrangement of electrical equipment of a car. Marking of parts.
PC2.1-PC2.3
OK1-OK10
What is the voltage at the terminals of the external circuit formed by electricity consumers on the vehicles under study?
1. 12V
2. 36V
3. 12V, 24V
3. 12V, 24V
1 min.
LR No. 1General diagram of electrical equipment
PC2.1-PC2.3
OK1-OK10
There are two parts in the electrical circuit of a car - external and internal. Which of the following devices does not belong to the external circuit?
1. Energy consumer
2. Energy source
3. Switch
2. Energy source
2 minutes.
Classification of modern automobile generators.
PC2.1-PC2.3
OK1-OK10
The alternator serves...
1.Main current source
2.Auxiliary current source
3. Additional current source
1.Main current source
1 min.
Design features of compact generators
PC2.1-PC2.3
OK1-OK10
Name the main differencescompact generatorsfrom a traditional generator
1. Two fan impellers are installed on the rotor shaft, located behind the generator covers; generator drive using an elastic V-belt.
2. Two fan impellers are installed on the rotor shaft; The generator is driven by an elastic V-belt.
3.
3. Two fan impellers are installed on the rotor shaft; contact rings, brush holder, rectifier block are located behind the generator covers; The generator is driven by an elastic V-belt.
2 minutes.
Brushless generators, liquid cooled
PC2.1-PC2.3
OK1-OK10
Discover the benefits of brushless generators
1. Brush contact unit; excitation winding is stationary
2. There is no brush-contact unit; excitation winding is stationary
3. There is no brush-contact unit; excitation winding is movable
2. There is no brush-contact unit; excitation winding is stationary
2 minutes.
LR No. 2 Automotive devicegenerator
PC2.1-PC2.3
OK1-OK10
Basic requirements for generators
1. The generator must provide
voltage in the on-board network within specified limits over the entire range of electrical loads and rotor speeds.
2. The generator must provide an uninterrupted supply of current and have sufficient power, have sufficient strength, a long service life, small weight and dimensions, low noise and radio interference.
3. The generator must simultaneously supply electricity to working consumers and charge the battery
2. The generator must provide an uninterrupted supply of current and have sufficient power, have sufficient strength, a long service life, small weight and dimensions, low noise level and radio interference
5,5
2.5 min.
Voltage regulator. Options for generator set circuits.
PC2.1-PC2.3
OK1-OK10
What device provides constant voltage at the generator terminals?
1. Relay regulator
2. Voltage regulator
3. Voltage regulator and relay regulator
2 minutes.
LR No. 3 Relay deviceregulators
PC2.1-PC2.3
OK1-OK10
According to their design, regulators are divided into:
1. Contactless transistor, contact-transistor, vibration (relay regulators)
2. Contact-transistor, vibration (relay-regulators)
3. Contactless transistor, vibration (relay regulators)
2. Non-contact transistor, contact-transistor, vibration (relay regulators)
2 minutes.
Device and principle of operation. Features of low-maintenance and maintenance-free batteries
PC2.1-PC2.3
OK1-OK10
Car batteries that do not have holes for adding water, and there is only an atmospheric connection between the internal cavity and the environment through small ventilation holes at the ends of the cover, are called...
1. Maintenance-free batteries
2. Low-maintenance batteries
3. Medium-maintenance batteries
1. Maintenance-free batteries
1 min.
Main characteristics, classification and marking of batteries (GOST, DIN, SAE)
PC2.1-PC2.3
OK1-OK10
Classification of lead-acid batteries:
1. According to the purpose, according to the type of positive plate, according to the alloy composition of the positive plate lattice
2. By purpose, by electrolyte condition, by maintenance, by type of positive plate
3.
3. By purpose, by the state of the electrolyte, by maintenance, by the type of positive plate, by the alloy composition of the positive plate grid
1 min.
LR No. 4 Study of design featuresbattery
PC2.1- PC2.3
OK1-OK10
Main types of batteries
2. Traction, electromechanical
3. Stationary, portable
1. Stationary, traction, portable
1 min.
Starting system. Purpose and design of the electric starting system.
PC2.1-PC2.3
OK1-OK10
Based on the operating principle of the drive mechanisms, starters are divided into:
1. With mechanical movement of the drive gear
2. With hydraulic movement of the drive gear
3. With electromechanical movement of the drive gear; with inertia drive
2
4
2 minutes.
14
LR No. 5 Device of electric starters
PC2.1-PC2.3
OK1-OK10
Starter...
1. Electric machine, DC motor, main mechanism of the internal combustion engine starting system.
.
3. Brushed DC motor, the main mechanism of the automotive engine starting system
2. Electric machine, brushed DC motor, the main mechanism of the starting system of an automobile internal combustion engine.
2
4
2 minutes.
15
Purpose of the ignition system. Classic contact ignition system
PC2.1-PC2.3
OK1-OK10
Advantages of the classic ignition system
1. Simplicity of design and low cost of ignition devices, the ability to adjust the ignition timing within a wide range without changing the secondary voltage.
2. Low cost of ignition devices, the ability to regulate the ignition timing within a wide range.
3. Simplicity of design and low cost of ignition devices
1.Simplicity of design and low cost of ignition devices, the ability to adjust the ignition timing within a wide range without changing the secondary voltage
3
5,5
2.5 min.
16
LR No. 6 Device of electronic and contact systemsignition
PC2.1-PC2.3
OK1-OK10
The engine ignition system is designed
1.To synchronize pulses with the engine phase and distribute ignition pulses across the engine cylinders.
2. To generate high voltage pulses that cause a flash of the working mixture in the combustion chamber of the engine. 3. To generate high voltage pulses that cause a flash of the working mixture in the combustion chamber of the engine, synchronizing these pulses with the engine phase and distributing ignition pulses across the engine cylinders.
3. To generate high voltage pulses that cause a flash of the working mixture in the engine combustion chamber, synchronize these pulses with the engine phase and distribute ignition pulses across the engine cylinders.
2
4
2 minutes.
17
Transistor ignition system. Ignition system with energy storage in inductance
PC2.1-PC2.3
OK1-OK10
What devices does a transistor ignition system belong to?
2. To devices in which the energy spent on combustion is stored in the field of the ignition coil
3. To devices in which energy is spent on combustion
1. To devices in which the energy spent on sparking is stored in the magnetic field of the ignition coil
2
4
2 minutes.
18
Non-contact ignition system (BSI). Microprocessor ignition system.
PC2.1-PC2.3
OK1-OK10
The main disadvantages of BSZ are
1. Electromechanical method of distributing energy among the engine cylinders, imperfection in setting the ignition timing,
3. Mechanical method of distributing energy among the engine cylinders, imperfection of mechanical automatic ignition timing
2. Mechanical method of distributing energy among the engine cylinders, imperfection of mechanical automatic ignition timing, errors in spark generation due to mechanical transmission from the engine crankshaft to the distributor
3
5,5
2.5 min.
19
Features of low-voltage spark distribution across engine cylinders. Idle spark method.
PC 2.1-PC2.3
OK1-OK10
Name the features of low-voltage spark distribution across engine cylinders. Idle spark method
1. Switching of high-voltage coils by electronic units; fully adjustable sparking moment depending on engine speed and load
2. Switching of high-voltage coils with electronic units
3. Fully adjustable sparking moment depending on engine speed and load
1. Switching of high-voltage coils by electronic units; fully adjustable sparking moment depending on engine speed and load
3
5,5
2.5 min.
20
Spark spark plugs. Main characteristics, manufacturer markings
PC2.1-PC2.3
OK1-OK10
Determine the basic function of spark plugs
1. Ignition of the air-fuel mixture
2.Supply additional energy during startup
3.
3. Ignition of the air-fuel mixture; heat removal from the combustion chamber
1
3
1 min.
21
LR No. 7Checking the technical condition of spark plugs
PC2.1-PC2.3
OK1-OK10
Establish methods for determining the performance of spark plugs:
1. Spark tests, external inspection, electrical circuit check.
2. Stiffness tests, external inspection
3. Circuit testing and inspection
1. Spark tests, external inspection, electrical circuit check
1
3
1 min.
22
Lighting systems. Main characteristics, markings.
PC2.1-PC2.3
OK1-OK10
The design, applicability and methods of monitoring the lamp are determined by
parameters and characteristics, indicate them
1. Rated and limiting power values
and luminous flux, average burning time, luminous efficiency, base type,
category, lamp type
2. Rated and rated voltage, rated and limiting power values
3. Average burning time, luminous efficiency, type of base, mass, geometric coordinates of the position of the filament system
2. Rated and rated voltage, rated and limiting power values
and luminous flux, average burning duration, luminous efficiency, type of base, mass, geometric coordinates of the position of the filament system
relative to mounting plane, category, lamp type
3
5,5
2.5 min.
23
Light and sound alarm systems Device, switching circuits.
PC2.1-PC2.3
OK1-OK10
Electronic anti-theft measures include:
1. Car alarm; satellite anti-theft systems
2. Fire alarm; immobilizer; satellite anti-theft systems
3. Car alarm; immobilizer; satellite anti-theft systems
1
3
1 min.
24
Information and measuring system. General information about the system.
PC2.1-PC2.3
OK1-OK10
Name the main function of the information-measuring system
1. Providing the driver with information about the vehicle’s driving mode as a whole
2. Providing the driver with information about the driving mode, performance or condition of the vehicle components and the vehicle as a whole
3. Providing the driver with information about the performance or condition of the vehicle components and the vehicle as a whole
2. Providing the driver with information about the driving mode, performance or condition of the vehicle components and the vehicle as a whole
2
4
2 minutes.
