Vehicle mechanics and operation (Test 13)
10 questions • Permit D and D1 (English)
Vehicle mechanics and operation
1
Besides the gearbox, in what other mechanism of the transmission system is the gear reduction ratio between the engine and the drive wheels altered?
Vehicle mechanics and operation
2
On the instrument panel, if the oil pressure gauge shows an abnormally low pressure with no apparent fault in the circuit, what is the usual condition of the engine oil?
Vehicle mechanics and operation
3
In a heavy vehicle whose starter motor runs at 24 volts, how must two 12-volt batteries be connected to reach that voltage?
Vehicle mechanics and operation
4
What are the direct consequences of driving with a tire inflation pressure lower than the recommended one?
Vehicle mechanics and operation
5
What fault does the continuous emission of black smoke from the exhaust pipe of a combustion engine usually indicate?
Vehicle mechanics and operation
6
If the clutch actuation system of a bus is hydraulic, is it necessary to inspect the fluid level?
Vehicle mechanics and operation
7
In an air brake system fitted with an antifreeze dosing unit, how is moisture prevented from freezing in the lines?
Vehicle mechanics and operation
8
On a bus whose total length is less than 6 meters, is it mandatory to have side position lights fitted?
Vehicle mechanics and operation
9
When driving a bus whose length exceeds 6 meters, is it mandatory to have side position lights fitted?
Vehicle mechanics and operation
10
While the vehicle is moving with the engine running, what does it indicate when the generator charge warning lamp stays off?
