ASVAB Automotive Information Practice Test 39297 Results

Your Results Global Average
Questions 5 5
Correct 0 3.08
Score 0% 62%

Review

1

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

49% Answer Correctly

bushings

knuckles

pins

ball joints


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.


2

The right front wheel of your front-wheel drive car drops into a pothole and the left front wheel doesn't lose contact with the road. Which of the following is true?

75% Answer Correctly

your car has an independent front suspension

your car has an independent rear suspension

your car has a rigid axle rear suspension

your car has a rigid axle front suspension


Solution

An independent suspension allows the wheels on either side of an axle to move independently from each other. The fact that the left front wheel didn't move up in response to the right front wheel moving down is evidence of this.


3

An overcooled engine:

72% Answer Correctly

generates more power

uses less gasoline

is less efficient

is more efficient


Solution

An overcooled engine is less efficient. During the power stroke, combustion heat pushes down the piston. If too much of this heat is lost to the cooling system, the fuel might not combust completely and contaminate the engine's lubricating oil diminishing its lubricating ability. Incomplete combustion of fuel also negatively affects the engine's fuel efficiency and power output.


4

The fuel pressure regulator ensures that the fuel injectors receive fuel at a consistent and known rate. The fuel pressure regulator is part of the:

40% Answer Correctly

fuel filter

electric fuel pump

fuel manifold

fuel rail


Solution

The electric fuel pump feeds pressurized fuel through a fuel filter to the fuel injectors via the fuel rail manifold. The fuel rail contains the fuel pressure regulator which ensures that the fuel injectors receive fuel at a consistent and known rate. Excess fuel bled off by the pressure regulator returns to the fuel tank through the fuel return line.


5

The distributor is responsible for:

72% Answer Correctly

recharging the battery

timing the spark and distributing it to the correct cylinder

distributing power to the correct drive wheels

utlizing battery power to start the engine


Solution

The distributor is driven by the engine's camshaft and is responsible for timing the spark and distributing it to the correct cylinder. The distributor cap contains a rotor that connects the ignition coil (and its high voltage) to the proper cylinder at the proper point in the stroke cycle.