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

GENERAL Learning Environment Category D (D, D1, Tb, Tv)
Question 234 of 485

The oils for the engines with ignition by spark are symbolized with the letter:

A B;
B V;
C S.

Explanation

Explanation text category D / driving quizzes drpciv:
The oils for the engines with ignition by spark are symbolized with the letter S (M.A.S.). Usually the letter S is followed by another letter which shows the quality of the oil, for example SA which is the weakest or oil or SL which is the best (at the moment).
The motor oil is a fluid which has the role of creating an insulating film between the various moving elements inside the engine. 
The main properties of the motor oil are:
- the resistance to wear.
- the viscosity depending on temperature.
- the chemical composition.
Correct answer: C
 
Driving quizzes drpciv category D explained.

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