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ASVAB > Automotive Information > Flashcards

Automotive Information Flashcards

1
Q

What is the function of the cylinder head?
A)Manages fuel flow into the cylinder
B)Closes the top of the cylinder forming the combustion chamber
C)Manages air flow into the cylinder
D)Connects a spark plug to the cylinder

A

b) Closes the top of the cylinder forming the combustion chamber

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2
Q

Which of the following statements about the V cylinder configuration is true?

a) Used only for motorcycle engines
b) Block is v-shaped
c) Engine is longer than an in-line engine
d) Has an odd number of cylinders

A

b) Block is v-shaped

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3
Q

What is the function of the alternator?

a) Charges the battery when the car is not running
b) Provides the electrical energy that the car draws from the battery
c) Replaces the electrical energy that the car draws from the battery
d) Converts AC current from the rectifies into DC current

A

c) Replaces the electrical energy that the car draws from the battery

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4
Q

The right front wheel of your front-wheel drive car drops into a pothole and the left front wheel doesn’t lose contact with the road. Which of the following is true?

a) Your car has a rigid front suspension
b) Your car has a rigid rear suspension
c) Your car has an independent front suspension
d) Your car has an independent rear suspension

A

c) Your car has an independent front suspension

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5
Q

What is the function of the head gasket?

a) To seal the exhaust system from the drive train
b) To seal the engine block from the cylinders
c) To seal the brake assembly from the external contaminants
d) To connect the transmission to the drive train

A

b) To seal the engine block from the cylinders

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6
Q

Another name for a reciprocating engine is a

a) Steam engine
b) Heat engine
c) Piston engine
d) Jet engine

A

c) Piston engine

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7
Q

What are the two ways of cooling an engine?

a) Water cooling and refrigeration
b) Air conditioning and liquid cooling
c) Air cooling and liquid cooling
d) Air conditioning and refrigeration

A

c) Air cooling and liquid cooling

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8
Q

Valve lifters are between ____ and ____?

a) Camshaft, cam
b) Cam, pushrod
c) Engine, oil pan
d) Piston, piston ring

A

b) Cam, pushrod

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9
Q

What is the function of the flywheel?

a) Links the crankshaft to the transmission
b) Links the drive axle to individual drive wheels
c) Reduces pulsating from the crankshaft
d) Charges the battery

A

c) Reduces pulsating from the crankshaft

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10
Q

What is a transaxle?

a) The combination of the transmission and the non-driven axle
b) The combination of the transmission and the differential in an all-wheel drive vehicle
c) The combination of the transmission and the differential in a front-wheel drive vehicle
d) The axle in an all-wheel or four-wheel drive vehicle

A

c) The combination of the transmission and the differential in a front-wheel drive vehicle

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11
Q

Which of the following is not part of an engine’s cooling system?

a) Radiator
b) Air Conditioning
c) Coolant
d) Fan switch

A

b) Air Conditioning

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12
Q

What is the purpose of the differential assembly?

a) Allows all four drive wheels to turn at the same speed
b) Allows the two drive wheel to turn at different speeds
c) Transfers power between the transmission and the drive wheels
d) Ensures that the two drive wheels turn at the same speed

A

b) Allows the two drive wheel to turn at different speeds

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13
Q

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

a) Pressure relief valve
b) Oil filter
c) Axle reservoir
d) Pickup tube

A

c) Axle reservoir

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14
Q

Which of the following is not a common engine cylinder arrangement?

a) Opposed
b) radial
c) Cyclical
d) V

A

c) Cyclical

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15
Q

Which of the following statements about fuel injection is false?

a) Relies on suction to draw fuel into the engine
b) Optimizes fuel delivery using various electronic engine sensors
c) Has replaced the carburetor as the primary fuel delivery system used in automotive engines
d) Atomizes fuel using high pressure and inject is into the engine

A

a) Relies on suction to draw fuel into the engine

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16
Q

Engine with radial cylinder configurations are most common in

a) Trains
b) Tanks
c) Recreational vehicles
d) Aircraft engines

A

d) Aircraft engines

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17
Q

A rocker arm converts

a) Upward motion to downward motion
b) Upward motion to rotational motion
c) Linear motion to rotational motion
d) Downward motion to upward motion

A

a) Upward motion to downward motion

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18
Q

Which of the following is not a type of steering?

a) Rack and pinion
b) Variable-ratio
c) Manual
d) Power

A

c) Manual

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19
Q

What is the function of a universal joint?

a) Provide a common joint type to standardize the engine mount assembly
b) Provide vibration dampening for the engine block
c) Transfers power from the transmission to the drive wheels
d) Keep the camshaft and craftshafts synchronized

A

c) Transfers power from the transmission to the drive wheels

20
Q

What automotive system turns engine energy into motive force?

a) Drive train
b) Transmission
c) Driving axels
d) Fuel tank

A

a) Drive train

21
Q

Which of the following is in the correct order of cycling sequence for a four-stroke engine?

a) Intake stoke, compression stroke, power stroke
b) Power stroke, compression stroke, intake stroke
c) Exhaust stroke, compression stroke, intake stroke
d) Exhaust stroke, power stroke, intake stroke

A

a) Intake stoke, compression stroke, power stroke

22
Q

What is the function of the slip joint?

a) Links the front and rear universal joints
b) Anchors the drive shaft to the front end
c) Allows two drive wheels to turn at different speeds
d) Allows the transmission to deliver power over rough terrain

A

d) Allows the transmission to deliver power over rough terrain

23
Q

An overcooled engine

a) Generates more power
b) Uses less gasoline
c) Is more efficient
d) Is less efficient

A

d) Is less efficient

24
Q

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

a) Observing the direction in which the intake valves open
b) Reversing the cylinder number
c) Observing the order in which the intake valves open
d) Identifying the cylinder number

A

c) Observing the order in which the intake valves open

25
Q

Aluminum parts should be cleaned in a

a) Hot tank
b) Salt bath
c) Water tank
d) Cold tank

A

d) Cold tank

26
Q

What is the function of the solenoid?

a) Controls the circuit between the alternator and the battery
b) Controls the circuit between the ignition and the battery
c) Controls the circuit between the battery and the starter motor
d) Links the ignition switch to the engine

A

c) Controls the circuit between the battery and the starter motor

27
Q

Which of these collects burned gases from the engine?

a) Exhaust manifold
b) Exhaust pipe
c) Muffler
d) Catalyic converter

A

a) Exhaust manifold

28
Q

Viscosity measures oil

a) Fluidity
b) Strength
c) Lubricating power
d) Durability

A

a) Fluidity

29
Q

The ignition coil is a/an

a) Step up transformer
b) Step down transformer
c) Alternator
d) Battery

A

a) Step up transformer

30
Q

The crankshaft turns the reciprocating motion of the pistons into

a) Parallel motion
b) Rotational motion
c) Perpendicular motion
d) Torsion motion

A

b) Rotational motion

31
Q

A ____ is common is diesel engines and utilizes a second smaller combustion chamber to ignite fuel.

a) Precombustion chamber
b) External combustion chamber
c) Internal combustion chamber
d) Hemispherical combustion chamber

A

a) Precombustion chamber

32
Q

Which of the following is a characteristic of a four-stroke engine?

a) Fire once every revolution
b) Used in small engines
c) Fire once every other revolution
d) Does not have valves

A

c) Fire once every other revolution

33
Q

How are the cylinders numbered in the v-type engines?

a) Alternating from the front of the engine to the back
b) Cylinder numbering varies by manufacturer
c) In multiples of two from the front of the engine to the back
d) Sequentially from the back of the engine to the front

A

b) Cylinder numbering varies by manufacturer

34
Q

What is the correct air fuel ratio for normal gasoline engine operation?

a) 1:5
b) 15:1
c) 1:1
d) 5:1

A

b) 15:1

35
Q

What is the function of the regulator?

a) Converts AC current from the alternator to DC current to charge the battery
b) Regulates battery output voltage
c) Regulates car electrical component power consumption
d) Regulates alternator output voltage

A

d) Regulates alternator output voltage

36
Q

Which of the following is a characteristic of a two-stroke engine?

a) Fire once every other revolution
b) Have separate strokes for combustion and exhaust
c) Have separate strokes for intake and compression
d) Combine the combustion and exhaust strokes

A

d) Combine the combustion and exhaust strokes

37
Q

_____ results from oil buildup in the combustion chamber

a) Preignition
b) Ignition
c) Combustion
d) Detonation

A

a) Preignition

38
Q

What is the primary difference between internal and external combustion engines?

a) The air-fuel mix for optimum combustion
b) Where the power is developed
c) The type of fuel used
d) How the fuel is ignited

A

b) Where the power is developed

39
Q

What is the function of a connecting rod?

a) Connects the steering column to the wheel assembly
b) Connects the cylinder to the crankshaft
c) Connects the drive train to the drive axle
d) Connects the piston to the crankshaft

A

d) Connects the piston to the crankshaft

40
Q

Automotively, what is the primary function of 30W oil?

a) Lubricates the drive train
b) Lubricates the power steering
c) Lubricates the chassis
d) Lubricates the wheel bearing

A

a) Lubricates the drive train

41
Q

Which of the following is not a function of the piston ring? (not entered)

a) Keep oil in the crankcase from leaking into the combustion chamber
b) Multiply the power of the piston
c) Hold the piston in place
d) Prevent combustion chamber heat and pressure from leaking into the crankcase

A

b) Multiply the power of the piston

42
Q

Which of the following is not a characteristic of 40W oil?

a) Better fuel economy
b) Heavier
c) Better for highway driving
d) Better for hotter climates

A

a) Better fuel economy

43
Q

What type of energy does an automotive battery produce?

a) Direct current
b) Chemical energy
c) Rotational energy
d) Inertial energy

A

a) Direct current

44
Q

Which of these converts harmful pollutants into less harmful emissions?

a) Exhaust pipe
b) Muffler
c) Exhaust manifold
d) Catalytic converter

A

d) Catalytic converter

45
Q

For in-line cylinder arrangements in an engine, how are the cylinders numbered?

a) Alternating from the front of the engine to the back
b) Cylinders numbering varies by manufacturer
c) In multiples of two from the back of the engine to the front
d) Sequentially from the front of the engine to the back

A

d) Sequentially from the front of the engine to the back

46
Q

What is the function of the distributor?

a) Delivers voltage from the ignition coil to the cylinders
b) Distributes oil throughout the engine block
c) Delivers voltage from the alternator to the battery
d) Delivers fuel from the fuel tank to the cylinders

A

a) Delivers voltage from the ignition coil to the cylinders

47
Q

Which of the following is not a characteristic of a L-Head valve arrangement?

a) Lower compression ratios
b) Flat cylinder heads
c) Large combustion chamber
d) Valves are placed over the cylinder block

A

d) Valves are placed over the cylinder block

ASVAB (3 decks)

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