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Section 25

1. During the movement of the car, you notice that this deviates from a straight course to one side. What is the possible cause?
  • Great difference in the wear of the front tyres.
  • Great difference in the air pressure of the front tyres.
  • Single-sided loading of the vehicle.
2. You notice that one tyre of the car has lost air and you have to replace the wheel with a spare one. How should you unscrew the bolts which support the wheel?
  • Jack up the car and unscrew the bolts using the special spanner while the wheel is off the ground.
  • Unscrew the bolts with the special spanner while the wheel is touching the ground.
3. What kind of tyres should you fit to your car?
  • Those you think that fit your car better.
  • Those recommended by the manufacturer of the car.
  • Those recommended by the technician of the repair workshop.
4. If the fuse of an electrical circuit (e.g. lights) of your car is blown, what should you do?
  • Replace it with a new one of less ampere.
  • Replace it with a new one of more ampere.
  • Replace it with a new one of the same ampere.
5. When there is lack of refrigerating fluid in the radiator of a car or the belt of the ventilator is cut or loose or there is lack of engine oil, what is the possible indication to be shown on the dashboard?
  • Regular temperature.
  • High temperature.
  • Low temperature.
6. During winter mainly in order to prevent engine cracks, what kind of fluid should you pour into the radiator of the engine?
  • Anti-freeze fluid.
  • Tap water.
  • Distilled water.
7. When you notice an engine overheating on the dashboard, which of the following causes are possible?
  • Excessive use of the heating system.
  • Malfunction of the air-conditioning.
  • Lack of refrigerating fluid.
8. When the car engine presents interruptions during its operation, which are not due to a lack of petrol, which of the following causes is more possible?
  • Malfunction of the electrical circuit of the car.
  • Defective battery.
  • The engine has been overheated.
9. In the event that you realize that the footbrake pedal is very elastic, which of the following causes is more possible?
  • A leak of brake fluids or very low level of brake fluids.
  • The friction surfaces may be wet.
  • The friction surfaces may have been destroyed.
10. What should the tyres of the same axle have?
  • Different extent of wear as long as they have the same type of tread.
  • Same type of tread and same extent of wear.
  • Different type of tread but same extent of wear.
11. What is the main consequence of a fan operation failure?
  • Engine overheating.
  • Excessive engine noise.
  • Destruction of the water pump.
12. On which wheels of the car should you preferably fit new tyres?
  • Two rear wheels.
  • One front wheel and one rear wheel diagonally.
  • Two front wheels.
13. What is the main consequence of the loosening of the cooling water pump belt?
  • Excessive engine noise.
  • Destruction of the water pump.
  • Engine overheating.
14. In case of jamming of the starter motor (ignition), how can this damage be repaired?
  • By dismantling it.
  • By selecting a high gear (3rd or 4th) and causing the vehicle to move (push) back and forth.
  • By changing the battery.
15. How will you realize that your exhaust pipe needs to be replaced?
  • From the excessive fuel consumption.
  • From the excessive noise.
  • From the colour of the exhaust gases.
16. What is the multiplier?
  • A device which distributes high voltage current to the sparking plugs.
  • A device which extinguishes pests.
  • A device which converts the voltage of current from high to low.
17. What is the usefulness of the clutch?
  • Vehicle effective slow-down is achieved.
  • Engine noise is reduced.
  • It engages the engine with and disengages it from the other parts of the driving system.
18. When may a battery suffer a damage?
  • When it has not been used for a long period.
  • When you use (fill in) the suitable fluid.
  • When the fluid covers completely the plates of the battery.
19. In case a fuse has blown you should replace it:
  • With the same fuse which you short-circuit with a wire.
  • With a new fuse of the same intensity of current.
  • With a new fuse of higher intensity of current.
20. How can you check whether the automatic seat belts work?
  • By pulling them hard and abruptly.
  • By pressing hard the footbrake pedal after the car has developed a high speed.
  • The automatic seat belts do not need to be checked.
21. If you notice that a lamp of one of the lights of your vehicle does not switch on, you should first check:
  • The battery.
  • The lamp.
  • The generator or the alternator.
22. In case of removal of the catalytic converter of a car, what happens?
  • Engine power is significantly increased.
  • Exhaust gases which are noxious to health are emitted by the car.
  • Nothing.
23. What is the aim of the handbrake?
  • To immobilise the vehicle in case of parking and as an auxiliary brake where required.
  • To stop (brake) the car.
  • To start on a downhill.
24. What is the consequence of a dirty air filter?
  • The engine presents operation interruptions.
  • The engine starts with difficulty.
  • Fuel consumption is greater.
25. How can you realize mainly that the fan does not work:
  • From the indications of the manometer or the engine lubrication oil pressure indication lamp.
  • From the engine noise
  • From the indications of the temperature gauge.
26. When are you allowed to drive a motor vehicle in public roads?
  • When you possess the vehicle registration licence.
  • When the vehicle does not meet the requirements of safe traffic.
27. What is the aim of the thermostat?
  • It ensures fast air circulation, when it is on.
  • It maintains engine temperature over a certain level.
  • It obstructs water circulation, when this has been overheated.
28. What is the cause of the blue smoke that comes from the exhaust pipe of a petrol-engined car?
  • Engine cooling system does not function properly.
  • The combustion of engine lubrication oil.
  • A failure of the electrical system.
29. What should you do if the engine oil pressure lamp is on while the engine works?
  • Check the quantity of oil and fill it in, if necessary.
  • Replace the belt of the camshaft.
  • Change engine oil.
30. When the starter motor does not work, which of the following is the possible cause?
  • The belt has broken.
  • There is a power-cut between the battery and starter motor.
  • The multiplier does not work.
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