Step 3 » GENERAL learning environment Category C (C, C1)

GENERAL Learning Environment Category C (C, C1)
Question 185 of 533

The appearance of some gas bubbles in the expansion tank, when accelerating the engine, indicates:

A the burning of the cylinder head gasket;
B the high temperature of the coolant;
C the blocking of the thermostat.

Explanation

Explanation text category C / driving tests:
The appearance of some gas bubbles in the expansion tank, when accelerating the engine, indicates the burning of the cylinder head gasket. If the cylinder head gasket burns, the oil can enter the coolant and vice versa.
Correct answer: A
 
Driving tests category C explained.

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