Step 3 » GENERAL learning environment Category D (D, D1, Tb, Tv)

GENERAL Learning Environment Category D (D, D1, Tb, Tv)
Question 152 of 485

The temperature at which the thermostat starts operating is:

A 76-80 degrees C;
B 95-100 degrees C;
C 105-120 degrees C.

Explanation

Explanation text category D / driving test quizzes:
The temperature at which the thermostat starts operating is 76-80 degrees Celsius. This temperature range differs from one type of engine to another.
The thermostat belongs to the cooling system of an internal combustion engine which has the function of closing the passage opening of the coolant from the engine block to the radiator as long as the engine is cold after starting, so that it reaches the optimum operating temperature as quickly as possible, and of opening it, to allow the coolant to pass to the radiator after the engine has reached the optimum operating temperature.
Correct answer: A
 
Driving test quizzes category D explained.

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