ASVAB Automotive Information Practice Test 384536 Results

Your Results Global Average
Questions 5 5
Correct 0 2.91
Score 0% 58%

Review

1

What type of energy does an automotive battery produce?

59% Answer Correctly

rotational energy

alternating current

chemical energy

direct current
Solution

An automotive battery produces direct current for use by automotive systems.

2

Ignition timing is measured in number of degrees:

59% Answer Correctly

before top dead center

after top dead center

after bottom dead center

before bottom dead center
Solution

Ignition timing defines the point in time at the end of the compression stroke that the spark plug fires. Measured in number of degrees before top dead center (BTDC), the exact point that the spark plugs initiate combustion varies depending on the speed of the engine. The timing is advanced (the spark plugs fire a few more degrees BTDC) when the engine is running faster and retarded when it's running slower.

3

How are the cylinders numbered in V-type engines?

42% Answer Correctly

cylinder numbering varies by manufacturer

sequentially from the back of the engine to the front

alternating from the front of the engine to the back

sequentially from the front of the engine to the back
Solution

In V-type engines the numbering sequence varies by manufacturer.

4

The fuel injectors are fed fuel by the:

65% Answer Correctly

fuel pressure regulator

powertrain control module

electric fuel pump

fuel return line
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

Exhaust gases from cylinder exhaust valves are collected by the:

65% Answer Correctly

tail pipe

muffler

catalytic converter

exhaust manifolds
Solution

The cast iron exhaust manifolds collect engine exhaust gas from multiple cylinder exhaust valves and deliver it to the exhaust pipe. Exhaust manifolds can be generic or specially tuned (header pipes) to the engine. Header pipes deliver higher performance but are more expensive and less durable.