ASVAB Automotive Information Practice Test 2989 Results

Your Results Global Average
Questions 5 5
Correct 0 3.06
Score 0% 61%

Review

1

What is the pimary advantage of using power brakes on a vehicle?

63% Answer Correctly

requires less brake fluid to operate the braking system

allows the use of antilock brakes

utilizes battery power to assist in braking

provides higher hydraulic pressure in the braking system


Solution

Power brakes multiply the force a driver applies to the brake pedal using a vacuum booster connected to the engine intake manifold. This provides for much higher hydraulic pressure in the braking system than could be generated by the driver alone. Antilock brakes (ABS) use speed sensors and adjust the brake pressure at each wheel to prevent skidding and allow the driver more steering control in slippery conditions.


2

Power brakes multiply the force a driver applies to the brake pedal using a __________ connected to the engine intake manifold.

53% Answer Correctly

cylinder

vacuum booster

brake line

speed sensor


Solution

Power brakes multiply the force a driver applies to the brake pedal using a vacuum booster connected to the engine intake manifold. This provides for much higher hydraulic pressure in the braking system than could be generated by the driver alone. Antilock brakes (ABS) use speed sensors and adjust the brake pressure at each wheel to prevent skidding and allow the driver more steering control in slippery conditions.


3

Control arms connect a vehicle's suspension to the frame. The connection to the frame uses:

49% Answer Correctly

knuckles

pins

ball joints

bushings


Solution

Control arms (upper and lower) connect a vehicle's suspension to the frame. The connection to the wheels is through ball joints which allow the control arms to turn and move up and down simultaneously. The frame connection uses bushings.


4

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

65% Answer Correctly

has an odd number of cylinders

has two rows of cylinders

engine is shorter than an inline engine

common in motorcycles, cars, and trucks


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.


5

The __________ provides the appropriate power to vehicle wheels to maintain a given speed.

75% Answer Correctly

transaxle

ignition coil

gearbox

transmission


Solution

The transmission provides the appropriate power to vehicle wheels to maintain a given speed. The engine and the transmission have to be disconnected to shift gears and a manual transmission requires the driver to manually manage this disconnection (using a clutch) and to manually shift gears. An automatic transmission is essentially an automatic gear shifter and handles this process without driver input.