ASVAB Automotive Information Practice Test 567181 Results

Your Results Global Average
Questions 5 5
Correct 0 3.00
Score 0% 60%

Review

1

Exhaust gases from cylinder exhaust valves are collected by the:

65% Answer Correctly

muffler

exhaust manifolds

tail pipe

catalytic converter


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.


2

Which of the following is not a characteristic of disc brakes?

57% Answer Correctly

uses a rotor

newer brake system

uses brake shoes

uses brake pads


Solution

Both drum brake and disc brake assemblies use friction to stop a car's wheels from turning but each do it in a slightly different way. A drum brake assembly uses a large iron drum attached to the wheel and brake shoes that press against the drum to slow the rotation of the drum and, consequently, the wheel. A disc brake assembly employs friction in the same way as a drum brake but instead uses a rotor, also attached to the wheel, and two brake pads that squeeze against the surface of the rotor.


3

The __________ converts pressure on the brake pedal to hydraulic pressure in the brake lines.

60% Answer Correctly

master cylinder

brake knuckle

brake cylinder

brake linkage


Solution

The master (brake) cylinder converts pressure on the brake pedal to hydraulic pressure in the brake lines.


4

A constant velocity (CV) joint is closely related to which of the following?

63% Answer Correctly

ball joint

master cylinder

sprint joint

universal joint


Solution

Like CV joints, universal joints (U-joints) are located at each end of a drive shaft and allow the shaft to operate at a variable angle with the item it is driving. Universal joints perform the same basic function as CV joints but CV joints have a wider range of operation.


5

Which of the following is a relay that connects the battery to the starter motor when the ignition key is turned?

54% Answer Correctly

solenoid

alternator

actuator

ignition coil


Solution

The cylindrical solenoid is a relay that safely connects the high amperage battery to the starter motor when the ignition key is turned. This current then allows the engine to turn at a high enough speed to start.