ASVAB Automotive Information Practice Test 502227 Results

Your Results Global Average
Questions 5 5
Correct 0 3.26
Score 0% 65%

Review

1

Coolant is circulated through the engine by the:

61% Answer Correctly

radiator

camshaft

water pump

water jacket


Solution

The water pump is driven by a belt connected to the crankshaft and ensures that coolant moves through the engine and radiator.


2

Gases from combustion are pushed out through the exhaust valve as the piston travels up the cylinder to top dead center. This describes which engine stroke?

67% Answer Correctly

exhaust

compression

power

intake


Solution

During the exhaust stroke, just before the piston reaches bottom dead center the exhaust valve opens. The resulting gases from combustion are then pushed out through the exhaust valve as the piston travels up the cylinder to top dead center, completing stroke four of the four-stroke piston cycle.


3

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.


4

The intake ports on the cylinder heads is fed outside air via the:

67% Answer Correctly

intake control module

intake pressure regulator

intake manifold

intake air pump


Solution

The intake manifold distributes outside air to the intake ports on the cylinder heads. The intake air filter removes any airborne contaminants before the air enters the engine.


5

Which of the following regulates the opening and closing of the intake and exhaust valves in each cylinder in time with the motion of the piston?

65% Answer Correctly

connecting arm

halfshaft

crankshaft

camshaft


Solution

The camshaft is linked to the crankshaft through a timing belt and regulates the opening and closing of the intake and exhaust valves in each cylinder in time with the motion of the piston. An engine designated OverHead Camshaft (OHC) locates the camshaft in the cylinder head. An engine with Double OverHead Camshaft (DOHC) has two camshafts, one to regulate the intake valves and one to regulate the exhaust valves.