ASVAB Automotive Information Practice Test 99 Results

Your Results Global Average
Questions 5 5
Correct 0 3.38
Score 0% 68%

Review

1

The catalytic converter output consists primarily of:

65% Answer Correctly

carbon monoxide

water and carbon dioxide

gasoline

oxygen
Solution

The catalytic converter converts pollutants in exhaust gas into less pollutant substances like carbon dioxide and water.

2

What combines the suspension spring and shock absorber into one unit?

73% Answer Correctly

knuckle

strut

wheel cylinder

wheel hub
Solution

Because a compressed spring will ex­tend violently, shock absorbers must be used to dampen the spring’s compression and extension cycles. Struts combine the spring and shock into one unit

3

The firing order of the cylinders in an engine can be found by:

59% Answer Correctly

identifying the cylinder number

observing the direction in which the intake valves open

observing the order in which the intake valves open

reversing the cylinder number
Solution

The firing order of the cylinders in an engine is different than the cynlinder numbers and can be found by observing the order in which the intake valves open.

4

Both intake and exhaust valves are closed as the piston begins moving back up from the bottom of the cylinder, compressing the air-fuel mixture in the combustion chamber which also makes it hotter. This describes which engine stroke?

73% Answer Correctly

intake

power

exhaust

compression
Solution

During the compression stroke, both intake and exhaust valves are closed as the piston begins moving back up from the bottom of the cylinder (bottom dead center or BDC). This compresses the air-fuel mixture in the combustion chamber which also makes it hotter.

5

Which of the following transfers the torque from the transmission to the drive wheels at a constant speed while accomodating the up and down movement of the suspension?

68% Answer Correctly

constant velocity (CV) joint

control arms

springs

transfer case
Solution

Constant velocity (CV) joints are located at both ends of a half shaft and their purpose is to transfer the torque from the transmission to the drive wheels at a constant speed while accomodating the up and down movement of the suspension. The inner CV joint connects the shaft to the transmission and the outer CV joint connects the shaft to the wheel.