ASVAB Automotive Information Practice Test 227401 Results

Your Results Global Average
Questions 5 5
Correct 0 3.34
Score 0% 67%

Review

1

A cylinders acts as a guide for a:

82% Answer Correctly

piston

camshaft

driveshaft

valve


Solution

Cylinders act as a guide for the pistons that translate the heat energy of combustion into the mechanical energy necessary to move a vehicle. Piston rings seal the piston to the cylinder to contain combustion gases and also regulate the oil distribution between the piston and cylinder wall. A cylinder head closes in the top of the cylinder forming the combustion chamber which is sealed by a head gasket (head). The head provides space for air and fuel intake valves, exhaust valves, and mounts for spark plugs and fuel injectors.


2

Which of the following is not a component in the engine lubrication system?

70% Answer Correctly

differential

pickup tube

pressure relief valve

oil filter


Solution

In engine lubrication, oil remains in the oil pan until the engine is turned on. It then gets sucked up the pickup tube by the oil pump and pressurized. This pressure is moderated by the pressure relief valve and the oil is fed through the oil filter into the engine to lubricate it.


3

Control arms connect a vehicle's suspension to the frame. The connection to the wheels is through:

71% Answer Correctly

knuckles

bushings

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.


4

The combustion chamber is enclosed by the:

53% Answer Correctly

piston

head gasket

piston ring

cylinder head


Solution

Cylinders act as a guide for the pistons that translate the heat energy of combustion into the mechanical energy necessary to move a vehicle. Piston rings seal the piston to the cylinder to contain combustion gases and also regulate the oil distribution between the piston and cylinder wall. A cylinder head closes in the top of the cylinder forming the combustion chamber which is sealed by a head gasket (head). The head provides space for air and fuel intake valves, exhaust valves, and mounts for spark plugs and fuel injectors.


5

The firing order of the cylinders in an engine can be found by:

59% Answer Correctly

observing the order in which the intake valves open

reversing the cylinder number

observing the direction in which the intake valves open

identifying the cylinder number


Solution

The firing order of the cylinders in an engine is different than the cynlinder numbers and can be found by observing the order in which the intake valves open.