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

GENERAL Learning Environment Category C (C, C1)
Question 153 of 533

The oils for compression-ignition engines are symbolized with the letter:

A D;
B C;
C U.
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Explanation

Explanation text category C / driving test questions drpciv:
The oils for compression-ignition engines are symbolized with the letter C. Usually the letter C is followed by another letter that shows the quality of the oil, for example CA which is the weakest oil or CF which is the best.
Engine oil is a fluid that has the role of creating an insulating film between the various moving elements inside the engine. 
The main properties of engine oil are:
- resistance to wear.
- viscosity depending on temperature.
- chemical composition.
Correct answer: B
 
Driving test questions drpciv category C explained.

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