(Chapter 80) 2. Technician A says certain automobiles are

equipped with disc brakes on all four wheels.

Technician B says disc brakes are most commonly

used on an automobile's rear wheels. Who

is right?

(Chapter 80) 3. All of the following are basic components of an

automotive disc brake assembly, except:

(Chapter 80) 4. Technician A says a caliper cylinder holds the

piston on a drum brake assembly. Technician B

says a caliper cylinder holds the piston on a disc

brake assembly. Who is right?

(Chapter 80) 5. Technician A says a hydraulic system uses air

to transmit motion or pressure from one point to

another. Technician B says a hydraulic system

uses a liquid to transmit motion or pressure from

one point to another. Who is right?

(Chapter 80) 6. Technician A says a manual master cylinder normally

bolts to the side of the engine. Technician B

says a manual master cylinder normally bolts to

the engine firewall. Who is right?

(Chapter 80) 7. Technician A says a push rod connects the brake

pedal to the master cylinder piston. Technician B

says a steel plate connects the brake pedal to the

master cylinder piston. Who is right?

(Chapter 80) 8. Technician A says an automotive master cylinder

keeps the brake system full of fluid as the brake

linings wear. Technician B says an automotive

master cylinder maintains a slight amount of

pressure to keep contaminants from entering the

brake system. Who is right?

(Chapter 80) 9. Technician A says a master cylinder's cup and

piston are used to release brake system pressure.

Technician B says a master cylinder's cup

and piston are used to pressurize the brake system.

Who is right?

(Chapter 80) 10. Technician A says a dual master cylinder's rear

piston assembly is called the primary piston. Technician

B says a dual master cylinder's rear piston assembly

is called the secondary piston. Who is right?

(Chapter 80) 11 . Technician A says certain automotive power

brake systems use engine vacuum to assist

brake pedal application. Technician B says

certain automotive power brake systems use a

vacuum pump to assist brake pedal application.

Who is right?

(Chapter 80) 12. Technician A says an automotive brake booster

is a piston-type pump that develops pressure for

the vehicle's brake system. Technician B says an

automotive brake booster is a vacuum or power

steering-operated device that assists brake

pedal application. Who is right?

(Chapter 80) 13. Technician A says an atmospheric suspended

vacuum brake booster works on both sides of

the diaphragm or piston. Technician B says a

vacuum suspended booster works on both sides

of the piston or diaphragm. Who is right?

(Chapter 80) 14. Technician A says a "longitudinally split" brake

system has each master cylinder piston operating

the brake assemblies on opposite corners of the

vehicle. Technician B says a "longitudinally split"

brake system has one master cylinder piston

operating the front wheel brake assemblies and

the other piston operating the rear wheel brake

assemblies. Who is right?

(Chapter 80) 15. A combination valve functions as all of the following,

except:

(Chapter 81) 1. A service writer says a customer's car has

a brake system problem. Technician A road

tests the car to detect any strange noises.

Technician B checks the car around the master

cylinder, brake lines, and wheel assemblies for

any unusual odors. Who is right?

(Chapter 81) 2. A customer complains that his car vibrates when

the brake pedal is applied. Technician A looks

for a warped disc. Technician B checks for "hard

spots" on the brake disc. Who is right?

(Chapter 81) 3. A car is brought into the shop with grabbing brakes.

Technician A looks for worn brake linings. Technician B

looks for a faulty metering valve. Who is right?

(Chapter 81) 4. A customer tells the shop service writer that there has

been a noticeable increase in the amount of foot pressure

needed to apply the brakes on her car. Technician A

checks for a frozen wheel cylinder. Technician B

checks the car's front end alignment. Who is right?

(Chapter 81) 5. A car veers to the right when the brakes are applied.

Technician A checks the vehicle's front end

alignment. Technician B looks for a frozen caliper.

Who is right?

(Chapter 81) 6. An automobile's brake system has a soft, spongy

pedal. Technician A checks the fluid level in the

master cylinder. Technician B checks the operation

of the brake caliper pistons. Who is right?

(Chapter 81) 7. An automobile has a dropping brake pedal. Technician

A looks for an internal master cylinder leak. Technician B

checks for a scored or gouged brake rotor. Who is right?

(Chapter 81) 8. A car has a low brake pedal problem. Technician A

inspects the brake adjusters. Technician B looks for a

maladjusted master cylinder push rod. Who is right?

(Chapter 81) 9. An automobile's brakes are dragging. Technician A

checks the parking brake adjustment. Technician B

checks for a master cylinder malfunction. Who is right?

(Chapter 81) 10. A small pickup truck is brought into the shop with a

no-brake-pedal condition. Technician A checks the

hydraulic system for problems. Technician B checks

the wheel cylinder return springs. Who is right?

(Chapter 81) 11. An automobile has a metal-on-metal grinding

sound when the brakes are applied. Technician A

inspects the brake linings. Technician B looks for

a leaking wheel cylinder. Who is right?

(Chapter 81) 12. An automobile's brake system needs to be inspected.

Technician A checks the system's brake

pedal action. Technician B checks the system's

master cylinder fluid level. Who is right?

(Chapter 81) 13. Brake dust has accumulated on an automobile's wheel

brake assemblies. Technician A uses a brake vacuum

machine to remove this dust. Technician B uses compressed

air to remove this dust. Who is right?

(Chapter 81) 14. An automobile has a spongy brake pedal. Technician

A checks to see if the brake pad linings are

too thin compared to specs. Technician B bleeds

the brake system. Who is right?

(Chapter 81) 15. An automotive brake disc has 0.001" runout.

Technician A wants to replace the brake disc.

Technician B says this amount of runout is normally

within specifications. Who is right?

(Chapter 82) 1. ABS uses wheel speed sensors, an ABS control

module (computer), an electro-hydraulic brake

actuator, and conventional hydraulic brake circuits

to prevent wheel lockup during hard braking.

(Chapter 82) 2. When the tires skid, they actually lose traction or

friction with the road surface. This can increase

stopping distance and reduce vehicle control in

some situations.

(Chapter 82) 4. Traction control systems are designed to prevent

the vehicle's wheels from spinning and losing traction

under hard ____________.

(Chapter 82) 5. For maximum stopping power with anti-lock

brakes, you want the tires to:

(Chapter 82) 6. Technician A says a scan tool will usually test the

action of major ABS components by energizing

them. Technician B says that a scan tool does

not have this capability. Who is correct?

(Chapter 82) 7. A car enters the shop with the ABS light glowing.

Technician A says to inspect the system for obvious

troubles. Technician B says to also use a scan tool

to help find the problem. Who is correct?

(Chapter 82) 8. All of the following sensors may send inputs to

the vehicle's stability control system to determine

vehicle skidding and body movement except:

(Chapter 82) 9. Which of the following cannot be checked with a

scan tool?

(Chapter 82) 10. Technician A says that you must set the sensor

air gap on some vehicles. Technician B says that

the air gap between the sensor and trigger wheel

needs to be increased each year the vehicle is in

service. Who is correct?

(Chapter 82) 11. A scan tool shows a problem with the right front

wheel speed sensor circuit. Technician A says that

after servicing the sensor, the ABS control module

must be reprogrammed. Technician B says to

replace the brake master cylinder. Who is correct?

(Chapter 82) 12. A new ABS modulator is being installed on avehicle.

Technician A says you may have to transfer

the old combination valve to the new unit. Technician

B says to coat all rubber parts with clean

brake fluid. Who is correct?

(Chapter 82) 13. A scan tool shows a problem with the modulator

pump motor. Technician A says to check for

power to the motor from the ABS control module.

Technician B says if no power is reaching the

motor to check the wiring between the control

module and the motor. Who is correct?

(Chapter 82) 14. After completing repairs on a stability control

system, you should do all of the following except:

(Chapter 82) 16. With many late-model anti-lock brake systems,

the scan tool can be used to perform several

manual and automatic tests

(Chapter 82) 17. In the dump mode, the ABS does not releases hydraulic

pressure to one or more of the brake wheel cylinders

or calipers.

(Chapter 82) 18. In the reapply mode, the ABS applies hydraulic pressure

to one or more of the wheel brake assemblies

(Chapter 82) 19. Technician A Says Bleeding an anti-lock brake system of air bubbles

can be similar to bleeding conventional brakes.

Technician B Says Bleeding may require special procedures and tools

who is correct?

(Chapter 82) 20. Technician A says that most traction control systems

work with the anti-lock brake system to cycle hydraulic

pressure to the wheel spinning the fastest. Technician

B says that stability control systems use more

input signals from various sensors to provide greater

control over vehicle handling under severe cornering,

braking, and acceleration conditions. Who is correct?

(Chapter 61) 1. Technician A says an automotive clutch connects

and disconnects the engine and drive shaft.

Technician B says an automotive clutch connects

and disconnects the engine and torque converter.

Who is right?

(Chapter 61) 2. Technician A says a clutch fork is a linkage

that allows the driver to disengage the

clutch by pressing down on the foot pedal.

Technician B says a clutch fork is a lever that

forces the release bearing into the pressure plate.

Who is right?

(Chapter 61) 3. Technician A says a pilot bearing is a bushing

that supports the forward end of the transmission

input shaft. Technician B says a pilot bearing is a

bushing that reduces friction between the clutch

fork and pressure plate. Who is right?

(Chapter 61) 4. While discussing the functions of a pressure

plate, Technician A says the purpose of a pressure

plate is to press the pilot bearing against the

engine's flywheel. Technician B says the pressure

plate is used to press the clutch disc against

the engine's flywheel. Who is right?

(Chapter 61) 5. Technician A says the clutch disc is bolted to the

transmission input shaft. Technician B says the

clutch disc is splined to the transmission input

shaft. Who is right?

(Chapter 61) 6. Technician A says a pilot bearing is normally

an aluminum bushing. Technician B says a pilot

bearing is usually a solid bronze bushing. Who is

right?

(Chapter 61) 7. Which of the following is another name for an

automotive clutch disc?

(Chapter 61) 8. Technician A says clutch disc torsion springs are

used to fasten the clutch disc to the transmission

input shaft. Technician B says clutch disc torsion

springs help absorb some of the vibration produced

by clutch engagement. Who is right?

(Chapter 61) 9. Which of the following is another name for a

"throw-out bearing?"

(Chapter 61) 10. Technician A says an automobile's clutch housing

is sometimes made of aluminum. Technician B

says an automobile's clutch housing is sometimes

made of cast iron. Who is right?

(Chapter 61) 11. Technician A says a dual-clutch transmission has

twin clutches and dual input shafts. Technician B

says a dual-clutch system provides both faster

acceleration and improved fuel economy. Who is

right?

(Chapter 61) 12. Technician A says the wet clutches in a hybrid

vehicle are splined to the engine crankshaft and

to the motor-generator armature. Technician B

says both of the wet clutches must be disengaged

for all-electric or gas engine-only propulsion.

Who is right?

(Chapter 17) 1. Technician A says electrons and protons form the

nucleus of an atom. Technician B says electrons

have a negative charge. Who is right?

(Chapter 17) 2. Technician A says electricity is the movement

of free atoms from one place to another.

Technician B says electricity is the movement of

free elements from one place to another. Who is

right?

(Chapter 17) 3. Technician A says silver is a good electrical conductor.

Technician B says iron is a good electrical

conductor. Who is right?

(Chapter 17) 4. An atomic force that can attract or repel ferrous

substances is known as:

(Chapter 17) 5. Technician A says an insulator is a substance

that resists the flow of electricity. Technician B

says the atoms in an insulator are very stable and

resist electron movement. Who is right?

(Chapter 17) 6. Technician A says a load is a basic component

of an electric circuit. Technician B says a power

supply is a basic component of an electric circuit.

Who is right?

(Chapter 17) 7. The electrical pressure that causes current is

known as:

(Chapter 17) 8. Technician A says that as voltage increases and

resistance remains constant, current increases.

Technician B says that as voltage decreases and

resistance remains constant, the number of free

electrons flowing through a circuit decreases.

Who is right?

(Chapter 17) 9. Technician A says the electron flow theory states

that electrons flow through a circuit from positive

to negative. Technician B says the conventional

current theory states that electrons flow through

a circuit from negative to positive. Who is right?

(Chapter 17) 10. Technician A says dc circuits are not normally

used in automotive circuits. Technician B says

certain automotive computer sensors use ac.

Who is right?

(Chapter 18) 1. Technician A says a series circuit has only one

path for current. Technician B says a series circuit

can have only one load. Who is right?

(Chapter 18) 2. Which of the following is not a common type of

electric circuit?

(Chapter 18) 3. Technician A says the term hot wire refers to the

section of the circuit after the load or electric device.

Technician B says the ground wire refers to

the section of the circuit after the load or electric

device. Who is right?

(Chapter 18) 4. Technician A says the frame-ground circuit, also

called a one-wire circuit, uses the metal structure

of the vehicle to return electricity to the power

source. Technician B says the ground includes

the portion of the circuit between the load and the

negative terminal of the battery. Who is right?

(Chapter 18) 5. A 12-volt circuit has a resistance of 2 ohms. How

much current is in the circuit?

(Chapter 18) 6. Technician A says a change in circuit resistance

will change the amount of current in the circuit.

Technician B says a change in circuit voltage will

change the amount of current in the circuit. Who

is right?

(Chapter 18) 7. Technician A says current is the same every-

where in a series circuit. Technician B says

current is the same in each branch of a parallel

circuit. Who is right?

(Chapter 18) 8. One milliamp is equal to:

(Chapter 18) 9. 10,000 ohms can also be written as:

(Chapter 18) 10. A 12-volt automotive circuit has a current of

3 amps. Technician A says the electric power

in this circuit is 36 watts. Technician B says the

electric power in this circuit is 4 watts. Who is

right?