Deck 1: Automotive Engines

Question 1

All of the following are functions of the transmission except:

A) Torque multiplication to increase power
B) Reduce torque and increase speed
C) Gear reduction to decrease torque
D) Manipulate torque to drive the wheels

Answer 1

C

Question 2

Technician A says a transversely mounted engine is common in RWD vehicles. Technician B says longitudinally mounted engines are common in RWD vehicles. Who is correct?

A) Technician A
B) Technician B
C) Both A and B
D) Neither A nor B

Answer 2

B

Question 3

Technician A says camshafts control the operation of the valves. Technician B says camshafts control the timing of the valves. Who is correct?

A) Technician A
B) Technician B
C) Both A and B
D) Neither A nor B

Answer 3

C

Question 4

Overheating an engine can lead to a blown head gasket.

Question 5

Which of the following is not contained in the modern engine block?

A) Pistons
B) Crankshaft
C) Valves
D) Connecting rods

Question 6

Valve timing refers to:

A) How long the valves are held open
B) The relationship between cam and crank rotation
C) The relationship between how long a valve is open compared to closed
D) None of these

Question 7

Both the cooling and lubrication systems remove heat from the engine.

Question 8

The engine can be connected to the transmission by which of the following?

A) Flexplate
B) Flywheel
C) Torque converter
D) Both B and C

Question 9

The powertrain control module controls fuel delivery to the engine.

Question 10

Which of the following is not characteristic of modern engines?

A) increased fuel economy
B) increased maintenance requirements
C) reduced emissions
D) reduced weight

Question 11

The powertrain includes the engine, transmission, axles, and suspension system.

Question 12

The camshaft spins at twice the speed of the crankshaft.

Question 13

The camshaft is responsible for opening the engine valves.

Question 14

Turbochargers and supercharges force more air and fuel into the engine to increase performance.

Question 15

Engine heat is removed by which of the following?

A) Air passing over the radiator
B) Oil lubricating moving components
C) Engine surface area to the surrounding air
D) All of the above

Question 16

Low engine oil pressure can cause excessive engine wear.

Question 17

Technician A says the engine breathes through the intake and exhaust systems. Technician B any restriction in intake or exhaust system will negatively affect an engine's performance. Who is correct?

A) Technician A
B) Technician B
C) Both A and B
D) Neither A nor B

Question 18

Modern engines are called internal combustion engines since the fuels burn within the engine.

Question 19

OHV engines have the camshaft located in the cylinder head with other valvetrain components.

Question 20

Which of the following is not a part of the combustion chamber?

A) Piston
B) Intake valve
C) Exhaust valve
D) Camshaft

Question 21

Blue smoke is present in the exhaust. Technician A says this can indicate worn piston rings. Technician B says this can indicate improper valve adjustment. Who is correct?

A) Technician A
B) Technician B
C) Both A and B
D) Neither A nor B

Question 22

Piston rings are used to:

A) Seal the combustion chamber
B) Remove excess oil from the cylinder wall
C) Both A and B
D) None of the above

Question 23

The relationship between the crankshaft and camshaft rotation is called ____________________.

Question 24

Which of the following is not part of a cylinder head?

A) Camshaft
B) Connecting rods
C) Valves
D) Rocker arms

Question 25

The PCM controls __________ __________ and ________ ________, among other functions.

Question 26

Why are transversely mounted engines popular in modern vehicle design?

Question 27

An engine that is severely overheated may cause damage to the ____________________.

Question 28

Explain the four strokes of the gasoline engine.

Question 29

Bearing material is ____________________ than the metal of the component they support.

Question 30

The ____________________ contains all of the components that deliver engine power to the road.

Question 31

The piston is driven up and down in the ____________________.

Question 32

A severely worn lifter can cause which of the following:

A) Rough idle
B) Lack of power
C) Low compression
D) All of these

Question 33

The crankshaft and connecting rod turn ____________________ motion into ____________________motion.

Question 34

Rubber bushings are used to isolate engine ____________________ from the ____________________.

Question 35

All of the following are components of the valvetrain except:

A) Pushrod
B) Lifter
C) Camshaft
D) Crankshaft

Question 36

The ____________________ connects air tubes to the cylinder head to distribute air to each cylinder.

Question 37

What can result from a failure of the timing belt or chain?

A) Bent valves
B) Piston damage
C) Cylinder head damage
D) All of the above

Question 38

The ____________________ has eccentric lobes which open the valves.

Question 39

What are three functions of the cooling system?

Question 40

When the engine coolant reaches a certain temperature, the ____________________ opens to allow the coolant to flow to the radiator.

Question 41

An aqueous parts cleaning tank uses a water-based cleaning solution with heat and agitation to remove dirt and oil from parts.

Question 42

Keeping tools neat, clean and organized can allow you to be safer and more profitable.

Question 43

Used oil filters should be crushed or drained for 12 hours prior to putting them into a trash container.

Question 44

Some cleaning solutions are not suitable for use on aluminum components because they may cause damage.

Question 45

The Occupational Safety and Health Administration (OSHA) provides safety data sheets (SDS) for chemicals when asked for by the consumer.

Question 46

A hydraulic press is used to separate tight precision fit components.

Question 47

Car batteries can be explosive due to hydrogen gas emitted during charging.

Question 48

When using a floor jack, you should not work under a vehicle until it is fully raised and well balanced on the jack with the handle in an upright position.

Question 49

If used antifreeze is not recycled, it must be disposed of as a hazardous waste.

Question 50

Pneumatic tools operate by hydraulic fluid pressure supplied by a pump.

Question 51

What is the function of the valvetrain?

Question 52

What poisonous gas is emitted from car exhaust that may be fatal to human beings?

A) oxygen
B) carbon dioxide
C) carbon monoxide
D) hydrogen

Question 53

How can turbocharging and supercharging increase an engine's performance?

Question 54

Technician A says that a car should be lowered onto the mechanical safety locks once a desired height has been achieved. Technician B says that you should recheck lift contact once the vehicle has been raised just off the floor. Who is correct?

A) A only
B) B only
C) Both A and B
D) Neither A nor B

Question 55

Fire extinguisher use is being discussed. Technician A says a multipurpose dry chemical-type fire extinguisher may be used on an electrical fire. Technician B says water may be used to extinguish a gasoline fire. Who is correct?

A) A only
B) B only
C) Both A and B
D) Neither A nor B

Question 56

Technician A says that safety glasses should be worn at all times in the automotive shop. Technician B says that ear protection should be worn at all times in the automotive shop. Who is correct?

A) A only
B) B only
C) Both A and B
D) Neither A nor B

Question 57

All of the following should not be worn in the automotive shop EXCEPT ____.

A) rings
B) watches
C) gloves
D) neck chains

Question 58

Putting a vehicle on a lift is being discussed. Technician A says that you can position the lift arms anywhere under the car as long as they are not perpendicular to the body. Technician B says that all cars can be lifted by the pinched panel in back of the front tires and in front of the rear tires. Who is correct?

A) A only
B) B only
C) Both A and B
D) Neither A nor B

Question 59

Technician A says that caustic cleaning solutions may be used to clean any automobile engine part. Technician B says that some newer cleaning solutions are water based and environmentally friendly. Who is correct?

A) A only
B) B only
C) Both A and B
D) Neither A nor B

Question 60

When lifting a heavy object from the floor, your legs should be straight and firm while using your back muscles to straighten up the rest of your body.

Question 61

What is the full name of the document used to describe details such as chemical composition and precautionary measures observed when handling hazardous materials in the automotive repair shop?

Question 62

All of the following are compressed air safety precautions except:

A) Never spin dry bearings
B) Use ear protection with pneumatic tools
C) Use compressed air to blow dirt off of clothing and skin
D) Check and maintain hoses and fittings

Question 63

Which of the following is not considered a Class A combustible material?

A) wood
B) wiring
C) paper
D) upholstery

Question 64

Why should you shake a vehicle when it is lifted only a couple of inches from the floor on a hoist?

A) to seat the lift pads
B) to center the car between the posts
C) to observe it for signs of movement
D) to set the lift safety

Question 65

SDS stands for:

A) Secure Disposal Standards
B) Standards Data Sheets
C) Storage, Disposition, and Selection
D) Safety Data Sheets

Question 66

Technician A says that dull tools can be more dangerous than sharp tools. Technician B says that greasy tools can slip in your hand, resulting in injury. Who is correct?

A) A only
B) B only
C) Both A and B
D) Neither A nor B

Question 67

What is the full name for the United States department dedicated to reducing pollution and improving environmental quality?

Question 68

Technician A says waste coolants and oils can be placed into the same container for storage. Technician B says waste coolant and oil must be stored in separate containers. Who is correct?

A) Technician A
B) Technician B
C) Both A and B
D) Neither A nor B

Question 69

Technician A says that carbon monoxide is an odorless and colorless gas present in gasoline engine exhaust. Technician B says that carbon monoxide poisoning causes flu-like symptoms. Who is correct?

A) A only
B) B only
C) Both A and B
D) Neither A nor B

Question 70

All of the following are acceptable for use in the automotive shop EXCEPT ____.

A) mechanics gloves
B) coveralls
C) non-slip leather work boots
D) loose fitting shirts

Question 71

Technician A says that rings should not be worn while working in the shop, but watches worn on the wrist are acceptable. Technician B says that long hair is safe only when it is tied back or secured under a hat. Who is correct?

A) A only
B) B only
C) Both A and B
D) Neither A nor B

Question 72

Nitrile gloves offer some protection from all of the following EXCEPT ____.

A) engine oil
B) gasoline
C) caustic chemicals
D) brake fluid

Question 73

What must be adjusted out far enough on an engine lift to prevent it from tipping over?

Question 74

Battery service is being discussed. Technician A says to disconnect the negative cable last. Technician B says to connect the positive cable first. Who is correct?

A) A only
B) B only
C) Both A and B
D) Neither A nor B

Question 75

What is the full name for the part of the United States government that is tasked with protecting the health and safety of workers?

Question 76

What can a technician do to prevent the loss of on-board computer memories when disconnecting the car battery?

Question 77

Which of the following is not a precaution when running a vehicle in the shop?

A) block the wheels
B) stand in front of the vehicle
C) connect an exhaust hose
D) set the parking brake

Question 78

What are three ways that power tools are operated?

Question 79

What should be worn to protect your hands from caustic chemical burns?

A) heavy work gloves
B) ace wraps
C) approved rubber gloves
D) silicone protection spray

Question 80

What type of cleaning bakes off unwanted material from parts?