Deck 4: Automotive Systems

Question 1

A transaxle is a transmission that does not have a differential.

Answer 1

False

Question 2

Which type of engine is classified as internal combustion?

A)gasoline
B)diesel
C)both a and b
D)neither a nor b

Answer 2

C

Question 3

An SUV can be based on either a truck or an automobile platform.

Answer 3

True

Question 4

Many hybrid vehicles rely exclusively on the electric motor(s)during slow-speed operation.

Question 5

Engine power is transferred to an automatic transmission through a ______.

A)differential
B)U-joint
C)torque converter
D)constant velocity joint

Question 6

Henry Ford's factory was the first to produce automobiles for sale to the public.

Question 7

Gasoline-powered cars have been around for over 100 years.

Question 8

A crossover vehicle is typically a cross between a station wagon and a SUV.

Question 9

In 1985, Congress passed the CAFE standards.

Question 10

Which of the following is NOT a typical emission control system?

A)exhaust gas recirculation (EGR)
B)positive crankcase ventilation (PCV)
C)thermostatic expansion valve (TEV)
D)evaporative system (EVAP)

Question 11

CAFE refers to "car average federal emissions."

Question 12

Which of the following is NOT one of the strokes of a four-cycle engine?

A)intake
B)combustion
C)power
D)exhaust

Question 13

A RWD vehicle that is equipped with independent rear suspension has a rear differential and drive axle shafts similar to a FWD vehicle.

Question 14

In body-over-frame construction, the body is supported to the frame by large rubber mounts.

Question 15

Air-cooled engines are not generally used on modern cars because it is very difficult to maintain constant temperatures at the cylinders. If the cylinder temperature is not accurately controlled, the engine will not run efficiently.

Question 16

Unibody construction is typical in most modern trucks.

Question 17

The condenser in an air-conditioning system is typically located under the dashboard inside the passenger compartment.

Question 18

In body-over-frame construction, the frame is the vehicle's foundation.

Question 19

Unibody construction is typical in most modern automobiles.

Question 20

What is the purpose of the valve train?

A)It connects a piston to the crankshaft
B)It supports the major parts of the engine
C)It converts reciprocating motion to rotary motion
D)It opens and closes the intake and exhaust valves of each cylinder

Question 21

Technician A says liquid cooling an engine maintains a constant operating temperature. Technician B says that air cooling lets the engine operate more efficiently. Who is correct?

A)A only
B)B only
C)both A and B
D)neither A nor B

Question 22

Although the exact proper time varies with engine design, ignition must occur_____.

A)just before the end of the compression stroke
B)just after the beginning of the power stroke
C)just before the beginning of the exhaust stroke
D)just at the end of the intake stroke

Question 23

Hybrid vehicles are being discussed. Technician A says the hybrid batteries are recharged by the engine during normal driving. Technician B say the batteries are recharged when the brakes are applied as the vehicle slows down. Who is correct?

A)A only
B)B only
C)both A and B
D)neither A nor B

Question 24

Automatic transmissions are being discussed. Technician A says they typically use planetary gearsets. Technician B says they always come equipped with a transfer case. Who is correct?

A)A only
B)B only
C)both A and B
D)neither A nor B

Question 25

Which one of the following is NOT a function of the exhaust system?

A)direct toxic gases away from the passenger compartment
B)quiet the sound of the exhaust pulses
C)burn or catalyze pollutants in the exhaust gases
D)remove hydrocarbon vapors from the crankcase

Question 26

Technician A says cooling system pressure is controlled by the radiator cap. Technician B says cooling system pressure is controlled by the thermostat. Who is correct?

A)A only
B)B only
C)both A and B
D)neither A nor B

Question 27

Technician A says power brake systems use a vacuum booster to increase the force applied to the master cylinder. Technician B says power brake systems use hydraulic pressure from the power steering pump to increase the force applied to the master cylinder. Who is correct?

A)A only
B)B only
C)both A and B
D)neither A nor B

Question 28

Technician A says a torsion bar is a type of shock absorber. Technician B says shock absorbers slow the upward and downward movement of the vehicle after a bump. Who is correct?

A)A only
B)B only
C)both A and B
D)neither A nor B

Question 29

Technician A says a four-wheel drive vehicle uses a transfer case. Technician B says an all wheel drive [AWD] vehicle has a center differential. Who is correct?

A)A only
B)B only
C)both A and B
D)neither A nor B

Question 30

Steering systems are being discussed. Technician A says most passenger cars use a recirculating ball-type mechanism. Technician B says most pickup trucks and SUVs use a rack-and-pinion mechanism. Who is correct?

A)A only
B)B only
C)both A and B
D)neither A nor B

Question 31

Which emission control system introduces exhaust gases into the intake air to reduce the formation of NO _X (oxides of nitrogen)in the combustion chamber?

A)PCV
B)AIR
C)evaporative
D)EGR

Question 32

Modern engines do not use a distributor; instead they have one ignition coil _____.

A)for each spark plug
B)for every two spark plugs
C)both a and b
D)neither a nor b

Question 33

A recirculating ball-type design is associated with the ______ system.

A)ignition
B)cooling
C)suspension
D)steering

Question 34

OBD II systems are being discussed. Technician A says the system can detect problems even before the driver is aware of a drivability problem. Technician B says when a problem is detected, the system will store a diagnostic trouble code in the vehicle's computer's memory. Who is correct?

A)A only
B)B only
C)both A and B
D)neither A nor B

Question 35

CAFE is being discussed. Technician A says it refers to a vehicle's emissions level. Technician B says it stands for Corporate Average Federal Emissions. Who is correct?

A)A only
B)B only
C)both A and B
D)neither A nor B

Question 36

Technician A says hybrid cars must be plugged in at night to recharge the batteries. Technician B says a hybrid cannot be a high-performance vehicle because the electric generator constantly uses energy to recharge the batteries, reducing power from the gasoline engine. Who is correct?

A)A only
B)B only
C)both A and B
D)neither A nor B

Question 37

Which of the following components is not a part of an air-conditioning system?

A)thermostatic expansion valve (TXV)
B)accumulator
C)evaporator
D)refrigerant pressure regulator (RPR)

Question 38

A torsion bar is associated with the ______.

A)ignition system
B)cooling system
C)suspension system
D)steering system

Question 39

Which component is located in the vehicle's exhaust system?

A)PCV
B)catalytic converter
C)sump
D)PVC

Question 40

On a vehicle with a manual transmission, the clutch assembly is connected to the ______.

A)drive axle
B)flywheel
C)differential
D)transmission output shaft

Question 41

Which component in the cooling system raises the boiling point of the coolant?

A)thermostat
B)radiator
C)water pump
D)pressure cap

Question 42

The piston is connected to the crankshaft by a(n)____________________.

Question 43

Hybrid vehicles are being discussed. Technician A says a hybrid can run on electric power or on the internal combustion motor, but never on both. Technician B says the internal combustion engines used in hybrids are specially designed to be assisted by electric power and as a result are more fuel efficient and cleaner than conventional engines. Who is correct?

A)A only
B)B only
C)both A and B
D)neither A nor B

Question 44

The ____________________ manifold carries exhaust gases away from the cylinders.

Question 45

How does CAFE influence today's vehicles?

Question 46

A(n)____________________ controls the movement of the engine's valves.

Question 47

The sump is also called the ____________________.

Question 48

Coolant is a mixture of antifreeze and ____________________.

Question 49

The motion of the piston and the rotation of the crankshaft is monitored by the _____ position sensor.

A)piston
B)camshaft
C)crankshaft
D)All the answers are correct.

Question 50

The ____________________ chamber is an area in which the air/fuel mixture is compressed and burned.

Question 51

The cylinder ____________________ fits on top of the cylinder block to close off and seal the top of the cylinders.

Question 52

The ____________________ manifold delivers a mixture of air and fuel to the intake ports.

Question 53

The nuts that hold the tire and rim to the axle flange are called ____________________ nuts.

Question 54

OBD II systems monitor ____________________ and related components.

Question 55

The compressor in an air-conditioning system can be turned on and off by means of an electromagnetic ____________________.

Question 56

Two technicians are discussing an OBD II vehicle that has a flashing check engine light. Technician A says there is problem with the engine lubrication or cooling system and the vehicle must not be driven, otherwise serious engine damage will occur. Technician B says there is a severe ignition misfire and the driver should reduce speed and engine load and have the vehicle serviced as soon as possible. Who is correct?

A)A only
B)B only
C)both A and B
D)neither A nor B

Question 57

How is a unitized vehicle constructed?

Question 58

____________________ is the burning of an air and fuel mixture.

Question 59

What component listed here is not a part of the heating system?

A)heater core
B)blower motor
C)heater and defroster ducts
D)compressor

Question 60

The biggest part of the engine is the cylinder (engine)____________________.

Question 61

Describe the purpose of the evaporative emission control system.

Question 62

Describe how a vehicle's cooling system works.

Question 63

Identify the components included in a vehicle's charging system.

Question 64

What is the purpose of the PCV system?

Question 65

Describe the purpose of a vehicle's lubrication system.

Question 66

Identify the nine major components of an air-conditioning system.

Question 67

What is the function of the ignition coil(s)?

Question 68

Identify three harmful engine exhaust pollutants.

Question 69

What is the function of the ABS brake system?

Question 70

Define internal combustion.