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What does it signify, where the tire tread in a truck is worn to the depth of less than 1.6 mm?

That the tyres are in a good condition.
That the tyres are excessively worn.
That it's possible to continue using the tyres.

What minimum section of the road ahead of the truck should be lit by properly-adjusted high-beam lights?

150 m.
100 m.
40 m.

What minimum section of the road ahead of the truck should be lit by properly-adjusted low-beam lights?

30 m.
40 m.
100 m.

What should be the intensity of the STOP brake lights in a truck?

Significantly higher than the rear position lights.
Significantly lower than the rear position lights.
The same as the rear position lights.

What may be the reason for a difficulty in maintaining a straight trajectory of a truck?

The wearing and excessive clearance in the steering system.
The wearing of the friction lining in the braking system.
Lack of turning limiters.

What may be the effect of too low oil level in the combustion engine?

The oil pressure will increase.
Wear of the crankshaft, pistons and valves.
A drop in the working temperature of the engine.

What may be the effect of too low level of the cooling liquid in the combustion engine?

A drop in the temperature of the engine.
Reduced fuel consumption.
An increase in the temperature of the engine.

What may be the cause of an increase in the engine's RPM without any increase in speed during acceleration of a truck.

Wear of the mechanical gear box.
Failure of the clutch.
Failure of the differential mechanism.

What may be the result of oil leakage from a mechanical gear box?

A change in the gear ratio.
Damage to the gear box.
A drop in the temperature of the gear box.

What may be the cause of a significantly increased blinking frequency of the indicator lights?

A short circuit in the indicator lights' circuit.
Failure of one of the indicators' lamps.
Low battery voltage.

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