Which is the normal water circulation in the cooling system?
Radiator - water jackets - water pump - thermostat -radiator.
Radiator - thermostat - water jackets - water pump -radiator.
Radiator - water pump - water jackets - thermostat -radiator.
Question 2
The minimum depth of tyre tread pattern of lorries and trailers is:
1 mm.
1,5 mm.
2 mm.
Question 3
Which vehicles does this traffic sign concern?
Vehicles carrying over a certain quantity of explosive or inflammable materials.
Vehicles carrying over a certain quantity of materials that may cause water pollution.
Vehicles carrying hazardous materials.
Question 4
What are the reasons that make the movement of loaded lorries very dangerous on bends?
The speed reduction of the lorry.
The volume, kind and weight of the load.
The proper handling by the driver.
Question 5
When you have driven for long in a motorway you may feel tired. In this case you’d better:
Switch on your radio, it may help you concentrate.
Ensure that the vehicle has good ventilation and, if necessary, stop in a parking place and walk.
Increase the speed so as to complete the journey sooner.
Question 6
The air compressor:
Sucks air, compresses and introduces it into the air containers.
Sucks air and sends it to the cooling system.
Sucks air and sends it to the suspension system.
Question 7
The aim of the anti-freeze fluid pump in a braking system with compressed air is to:
Maintain pressure of the system steady.
Feed the system with compressed air, so that rates of higher and lower function pressure are maintained steady in the air containers.
Inject the compressed air with anti-freeze fluid, so that the various components do not freeze at very low temperatures.
Question 8
What is the range of the lowest permissible pressure of compressed air in a pneumatic brake system?
About 14-15 bar.
About 9-10 bar.
About 5-6 bar.
Question 9
How many indication triangles should a combination of vehicles (train or articulated) have:
As many as the vehicles are.
One (1).
Question 10
In this case, are you allowed to overtake?
No.
Yes.
Time 15'
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