Step 3 » GENERAL learning environment Category B (B, B1)

GENERAL Learning Environment Category B (B, B1)
Question 1181 of 1208

Which among the following causes determine the excessive increase of the thermal operating regime of the engine?

A breaking of the belt that drives the water pump;
B failure of the thermostat;
C the increased temperature of the ambient environment.
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Explanation

Failure of the thermostat of the cooling installation or breaking of the belt that drives the water recirculation pump can determine an excessive increase of the thermal operating regime of the engine, more precisely the temperature of the engine increases.

The temperature of the coolant, which ensures maximum performance and minimal wear of the engine, is within the range of 90-95 degrees Celsius.

Driving the motor vehicle, the coolant having a temperature of over 95 degrees Celsius can lead to engine failure.

The correct answer is: A and B


Recommendations:
Lesson about the cooling installation of the engine --> The cooling installation

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