ASVAB Automotive Information Practice Test 443 Results

Your Results Global Average
Questions 5 5
Correct 0 3.22
Score 0% 64%

Review

1

Which of the following statements about v-type cyllinder arrangement is false?

65% Answer Correctly

common in motorcycles, cars, and trucks

has an odd number of cylinders

engine is shorter than an inline engine

has two rows of cylinders


Solution

A v-arrangement has two rows of cylinders in a V-shaped block with a crankshaft at the bottom of the V. Any even number of cylinders is possible in this configuration from the V-2 that's commonly used in motorcycles up to V-12 or bigger for large trucks. The V design produces a shorter engine than an in-line cylinder configuration and allows for better air-fuel distribution.


2

Which of the following is not a component in the engine lubrication system?

70% Answer Correctly

pickup tube

oil filter

pressure relief valve

differential


Solution

In engine lubrication, oil remains in the oil pan until the engine is turned on. It then gets sucked up the pickup tube by the oil pump and pressurized. This pressure is moderated by the pressure relief valve and the oil is fed through the oil filter into the engine to lubricate it.


3

The primary purpose of the muffler is to:

75% Answer Correctly

quiet exhaust

remove harmful gases from the exhaust

cool the exhaust

reclaim unburned fuel


Solution

The muffler follows the catalytic converter and absorbs sound to help quiet load exhaust. It is followed by the exhaust pipe which is the final exit point for exhaust gas from the vehicle.


4

__________ are made with wide gap coils of rigid steel cable and both hold the vehicle chassis up off the ground and absorb energy from wheel movement making for a smoother ride.

67% Answer Correctly

suspension springs

shock absorbers

ignition coils

control arms


Solution

Suspension springs are made with wide gap coils of rigid steel cable and both hold the vehicle chassis up off the ground and absorb energy from wheel movement making for a smoother ride.


5

__________ results from oil buildup in the combustion chamber.

43% Answer Correctly

engine knock

combustion

detonation

preignition


Solution

Preignition results from the buildup of fuel deposits and/or oil in the combustion chamber. These deposits increase chamber pressure and reduce heat tranfer to the coolant. The trapped heat then raises the temperature of the air-fuel mix to the point that it combusts before ignition.