ASVAB Automotive Information Practice Test 738779 Results

Your Results Global Average
Questions 5 5
Correct 0 3.07
Score 0% 61%

Review

1

What does the timing belt do?

64% Answer Correctly

synchronizes the camshaft and the crankshaft

synchronizes the cam and the camshaft

calibrates the speedometer

synchronizes each piston to the crankshaft


Solution

Maintaining proper synchronization between the rotation of the camshaft and the rotation of the crankshaft is critical to ensure that the engine's valves open and close at the proper times during each cylinder's intake and exhaust strokes.


2

The steering __________ transfers the motion of the steering gear output shaft to the steering arms that turn the wheels.

57% Answer Correctly

column

arms

linkage

cylinder


Solution

The steering linkage is a system of pivots and connecting parts between the steering gear and the control arms. The steering linkage transfers the motion of the steering gear output shaft to the steering arms that turn the wheels.


3

What's the name of the high-voltage winding in the ignition coil?

51% Answer Correctly

primary coil winding

initial coil winding

battery coil winding

secondary coil winding


Solution

The ignition coil is a high-voltage transformer made up of two coils of wire. The primary coil winding is the low-voltage winding and has relatively few turns of heavy wire. The secondary coil winding is the high-voltage winding that surrounds the primary and is made up of thousands of turns of fine wire. Current flows from the battery through the primary coil winding which creates a changing magnetic field inside the secondary coil. This induces a very high-voltage current in the secondary coil which it feeds to the distributor.


4

Exhaust gases from cylinder exhaust valves are collected by the:

65% Answer Correctly

tail pipe

catalytic converter

muffler

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.


5

A vehicle's lighting system is protected from current spikes by:

69% Answer Correctly

the alternator

the battery

the voltage regulator

fuses and circuit breakers


Solution

The lighting system consists of interior lights, instrument panel lighting, headlights, and taillights. Like household electrical circuits, the vehicle's lighting system is protected from current spikes by fuses and circuit breakers.