ASVAB Automotive Information Practice Test 9401 Results

Your Results Global Average
Questions 5 5
Correct 0 3.72
Score 0% 74%

Review

1

What links each piston to the engine's crankshaft?

72% Answer Correctly

piston ring

cylinder arm

halfshaft

connecting rod


Solution

A connecting rod employs a wrist pin to link each piston to the engine's crankshaft.


2

What is the function of the head gasket?

75% Answer Correctly

to seal the engine block from the cylinders

to seal the brake assembly from external contaminants

to seal the exhaust system from the drive train

to connect the transmission to the drive train


Solution

A head gasket is a gasket that sits between the engine block and cylinder heads to seal the cylinders to ensure maximum compression and avoid leakage of coolant or engine oil into the cylinders.


3

The air-fuel mixture is delivered to the combustion chamber by a(n):

76% Answer Correctly

fuel valve

intake valve

exhaust valve

air valve


Solution

The combustion chamber is located in the cylinder head and contains the combustion of the air-fuel mixture. This mixture is delivered by an intake valve and the waste gases from combustion are removed from the combustion chamber by the exhaust valve.


4

Waste gases from combustion are removed from the combustion chamber by the:

86% Answer Correctly

piston

camshaft

exhaust valve

head gasket


Solution

The combustion chamber is located in the cylinder head and contains the combustion of the air-fuel mixture. This mixture is delivered by an intake valve and the waste gases from combustion are removed from the combustion chamber by the exhaust valve.


5

Which of the following maintains pressure in the cooling system?

61% Answer Correctly

radiator cap

water jacket

water pump

thermostat


Solution

The radiator is responsible for tranferring heat from the coolant to the outside air. Radiator hoses transfer coolant to and from the engine to the radiator and a radiator cap maintains pressure in the cooling system to increase the boiling point of the coolant mixture and thus allow it to absorb more heat.