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

For answer  A 

The lack of antifreeze in the coolant does not influence fuel consumption. Its role is to prevent the coolant from freezing in the cold season and to protect the engine against corrosion.

For answer  B 

A manual steering system does not contain hydraulic or electrical components, so it does not generate additional fuel consumption. Unlike power steering, it does not require extra energy from the engine.

For answer  C 

Electrical devices powered by the alternator contribute to increased fuel consumption. The alternator converts the engine’s mechanical energy into electrical energy, and a high current demand requires more power from the engine, which leads to greater fuel consumption. A few electrical consumers of the motor vehicle that load the alternator and, implicitly, may lead to an increase in fuel consumption are: the air conditioning system (AC), the heating of the rear window and electric mirrors, and the headlights (especially high beams or auxiliary headlights).

The correct answer is: C

Recommendations:

Mechanics course (knowledge of main components) --> Mechanics course

Defensive driving course --> Defensive driving course