With many modem gasoline vehicles, (A) a badly clogged air cleaner will cause th

Question

With many modem gasoline vehicles, (A) a badly clogged air cleaner will cause the engine to run very rich (B) gasoline will condense on the sides of the intake plenums while the engine is cold (C) throttle valve icing is prevented using engine coolant (D) when the engine is cold, incoming air is heated by directing hot exhaust gasses directly into the incoming air stream. All of the following apply to turbochargers except that (A) they boost the air pressure in the intake manifold (B) they are driven by the engine crankshaft (C) the boost pressure is controlled by a waste gate (D) the engine compression must be lower than that of a naturally aspirated engine. Regarding air intake systems. (A) air entering the engine must be filtered (B) on a cold engine the incoming air must be heated to prevent gasoline vapor from condensing on the sides of the intake passages (C) plenums are designed to equalize the air pressure at the intake ports (D) all of these.

Explanation / Answer

1)D 5)D

2)D 6)B

3)D 7)A

4)C 8)D

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