ASE brake questions

Which of the following organizations grades the thickness of grease? Choose one answer. a. Society of Automotive Engineers (SAE) b. National Lubricating Grease Institute (NLGI) c. American Petroleum Institute (API) d. Lube America

...b. National Lubricating Grease Institute (NLGI)

Which of the following locking components are commonly used for wheel bearings on non-four-wheel drive vehicles? Choose one answer. a. All of the answers listed b. Lock cage c. Adjustable nut d. Keyed washer (hardened)

a. All of the answers listed

Which of the following are LEAST likely to be used to reduce disc brake squeal? Choose one answer. a. Frictionless bearings b. Spacers c. Bendable tangs d. Shims

a. Frictionless bearings

Which type of drum is most common in passenger vehicles? Choose one answer. a. Hubless-style drum b. Rotor-style drum c. Hub-style drum d. Rotorless-style drum

a. Hubless-style drum

Technician A says that fixed calipers are rigidly bolted in place and cannot move or slide. Technician B says that the sliding or floating caliper has pistons on both sides of the rotor. Who is correct? Choose one answer. a. Technician A b. Technician B c. Both Technician A and Technician B d. Neither Technician A nor Technician B

a. Technician A

Technician A says that some manufacturers provide a means of notifying the driver that the brake pad linings are worn to their minimum limits. Technician B says that manufacturers are required to equip their vehicles with an electronic brake lining wear sensor to warn the driver of worn brakes. Who is correct? Choose one answer. a. Technician A b. Technician B c. Both Technician A and Technician B d. Neither Technician A nor Technician B

a. Technician A

Technician A states that disc rotors can be refinished on or off the vehicle. Technician B states that brake drums can be refinished on and off the vehicle. Who is correct? Choose one answer. a. Technician A b. Technician B c. Both Technician A and Technician B d. Neither Technician A nor Technician B

a. Technician A

The primary brake circuit fails due to a leak in the lines. Technician A says that the driver will notice a lower than normal brake pedal and reduced braking power. Technician B says that the brake pedal will "grab" higher than normal. Who is correct? Choose one answer. a. Technician A b. Technician B c. Both Technician A and Technician B d. Neither Technician A nor Technician B

a. Technician A

Lubrication of serviceable tapered wheel bearing assemblies is accomplished in which way? Choose one answer. a. Wheel bearing grease or gear lube depending on manufacturer recommendation b. Neither wheel bearing grease nor gear lube c. Gear lube d. Wheel bearing grease

a. Wheel bearing grease or gear lube depending on manufacturer recommendation

Which of the following is not a main component of a typical hydraulic brake system? Choose one answer. a. Brake fluid b. Clutch cylinder c. Master cylinder d. Brake pedal

b. Clutch cylinder

To perform an internal leak test on a vacuum power booster, let the engine idle and apply the brake pedal with firm pressure. Without moving your foot, shut off the engine and observe the brake pedal for 1 minute. If the power booster is okay, what should the brake pedal do? Choose one answer. a. Pulsate rapidly b. Hold steady c. Slowly sink d. Slowly rise

b. Hold steady

Technician A says that it is normal to find a little brake fluid behind the dust boot when you pull the dust boot from the wheel cylinder during a brake inspection. Technician B says that if there is any brake fluid behind the dust boot, the wheel cylinder is starting to leak and should be replaced. Who is correct? Choose one answer. a. Technician A b. Technician B c. Both Technician A and Technician B d. Neither Technician A nor Technician B

b. Technician B

Technician A states that brake drums should only be refinished when they are excessively grooved. Technician B states that after refinishing a brake drum, it should be remeasured to ensure that it is under the manufacturer's maximum diameter. Who is correct? Choose one answer. a. Technician A b. Technician B c. Both Technician A and Technician B d. Neither technician A nor Technician B

b. Technician B

Technician A states that retracting the caliper piston on an integrated parking brake calipers can best be performed with a C-clamp. Technician B states that integrated parking brake calipers require a tool to turn the piston in the direction that causes the piston to retract. Who is correct? Choose one answer. a. Technician A b. Technician B c. Both Technician A and Technician B d. Neither Technician A nor Technician B

b. Technician B

Technician A states that some traction control systems can be temporarily deactivated by stepping on the brake pedal. Technician B states that traction control systems will automatically default back "on" during the next ignition switch cycle. Who is correct? Choose one answer. a. Technician A b. Technician B c. Both Technician A and Technician B d. Neither Technician A nor Technician B

b. Technician B

Two technicians are discussing Newton's first law of motion. Technician A says that a lightweight vehicle requires as much energy to accelerate as a heavier vehicle. Technician B says that a lighter vehicle requires less energy to accelerate than a heavier vehicle. Who is correct? Choose one answer. a. Technician A b. Technician B c. Both Technician A and Technician B d. Neither Technician A nor Technician B

b. Technician B

A(n) ___________________ band should be installed on a brake drum before refinishing its surface. Choose one answer. a. broad b. anti-chatter c. coarse d. hypoid

b. anti-chatter

Parking brake styles include all of the following, EXCEPT: Choose one answer. a. top hat parking brakes. b. axle lock brakes. c. transmission-mounted parking brakes. d. drum-style parking brakes.

b. axle lock brakes.

A(n) __________________ is commonly used to activate drum-type friction brakes on a trailer that its gross weight exceeds a certain value. Choose one answer. a. surge brake b. electric braking system c. Both A and B d. None of the answers listed

b. electric braking system

When inspecting wheel studs for damage, a technician should look for all of the following, EXCEPT: Choose one answer. a. seizing of the lug nut on the stud. b. the build date. c. necked-down or thinned-out sections. d. cross-threading.

b. the build date.

The amount of friction between two moving faces in contact with each other is expressed as a ratio and is called: Choose one answer. a. friction. b. the coefficient of heat. c. the coefficient of friction. d. heat ratio.

b. the coefficient of heat

Which type of brake lining is typically used on light-duty vehicles? Choose one answer. a. Porcelain b. Riveted c. Bonded d. Wax

c. Bonded

Technician A says that as moisture levels increase in brake fluid, the boiling point of the brake fluid decreases. Technician B says that the result of brake fluid boiling in brake systems is a spongy pedal and a loss of braking effort at the wheels. Who is correct? Choose one answer. a. Technician A b. Technician B c. Both Technician A and Technician B d. Neither Technician A nor Technician B

c. Both Technician A and Technician B

Technician A says that disc brake pads require much higher application pressure to operate than drum brake shoes because they are not self-energized. Technician B says that the square-cut O-ring (rather than springs) is what retracts the caliper piston when the brake pedal is released. Who is correct? Choose one answer. a. Technician A b. Technician B c. Both Technician A and Technician B d. Neither Technician A nor Technician B

c. Both Technician A and Technician B

Technician A says that disc brakes were originally developed in the early 1900's but didn't find common use until the 1960's. Technician B says that a disc brake operates by squeezing brake pads on both sides of a rotor or disc that is attached to the wheel. Who is correct? Choose one answer. a. Technician A b. Technician B c. Both Technician A and Technician B d. Neither Technician A nor Technician B

c. Both Technician A and Technician B

Technician A says that hydraulic braking systems use proportioning valves, pressure differential valves, and metering valves. Technician B says that a combination valve is a pressure differential valve, metering valve, and proportioning valve all in one unit. Who is correct? Choose one answer. a. Technician A b. Technician B c. Both Technician A and Technician B d. Neither Technician A nor Technician B

c. Both Technician A and Technician B

Technician A says that if a technician is determined to have acted maliciously, he or she can be found criminally negligent. Technician B says that technicians have been successfully sued for improperly repaired brakes. Who is correct? Choose one answer. a. Technician A b. Technician B c. Both Technician A and Technician B d. Neither Technician A nor Technician B

c. Both Technician A and Technician B

Technician A says that the wheel bearing can damage the wheel hub or spindle/axle in a vehicle. Technician B says that one way that bearing failure is indicated is when the race spins in either the machined bore of the wheel hub or on the surface of the spindle/axle. Who is correct? Choose one answer. a. Technician A b. Technician B c. Both Technician A and Technician B d. Neither Technician A nor Technician B

c. Both Technician A and Technician B

Technician A says that wheel speed sensors are a highly probable cause of illuminated EBC warning lamps. Technician B says that using the diagnostic codes can help determine which wheel speed sensor or sensor circuit is at fault. Who is correct? Choose one answer. a. Technician A b. Technician B c. Both Technician A and Technician B d. Neither Technician A nor Technician B

c. Both Technician A and Technician B

Technician A says that you should always start lug nuts on the wheel stud by hand. Technician B says that on some vehicles, you are required to install the hubcap before installing the lug nuts. Who is correct? Choose one answer. a. Technician A b. Technician B c. Both Technician A and Technician B d. Neither technician A nor Technician B

c. Both Technician A and Technician B

Technician A states that a pressure bleeder may be needed to bleed EBC system hydraulic circuits. Technician B states that once the scan tool indicates that the HCU is bled, it may direct you to bleed the brakes manually to remove any remaining air from the system. Who is correct? Choose one answer. a. Technician A b. Technician B c. Both Technician A and Technician B d. Neither Technician A nor Technician B

c. Both Technician A and Technician B

Technician A states that accident avoidance works in conjunction with adaptive cruise control to monitor objects in front of the vehicle. Technician B states that if the electronic stability control (ESC) system detects an imminent collision, it can apply the brakes or boost the brake pressure over driver pressure. Who is correct? Choose one answer. a. Technician A b. Technician B c. Both Technician A and Technician B d. Neither Technician A nor Technician B

c. Both Technician A and Technician B

Technician A states that disc brake rotors can be of the hub-style. Technician B states that disc brake rotors can be of the hubless-style. Who is correct? Choose one answer. a. Technician A b. Technician B c. Both Technician A and Technician B d. Neither Technician A nor Technician B

c. Both Technician A and Technician B

__________________ are used to return links and levers on the parking brake system or the self-adjuster mechanism. Choose one answer. a. Return springs b. Wheel cylinder springs c. Specialty springs d. Hold-down springs

c. Specialty springs

All of the following are components of a typical wheel bearing, EXCEPT: Choose one answer. a. inner race. b. bearing cage. c. bearing seat. d. outer race.

c. bearing seat.

All of the following are main components of a drum brake system, EXCEPT: Choose one answer. a. brake drum. b. backing plate. c. caliper assembly. d. wheel cylinder.

c. caliper assembly.

When reinstalling a wheel cylinder on the backing plate, the brake line should be started by hand three or four turns to prevent _____________________ of the wheel cylinder. Choose one answer. a. falling off b. leakage c. cross-threading d. bleeding

c. cross-threading

Determining if brake fluid should be flushed can be done using all of the following methods, EXCEPT: Choose one answer. a. DVOM-galvanic reaction test. b. time and mileage. c. flame test. d. test strip.

c. flame test.

Replacing a disc brake rotor is usually required when the rotor: Choose one answer. a. is over the specified thickness after machining. b. is taken off to replace the CV joint c. is under the specified thickness after machining. d. is taken off to replace the wheel bearing hub

c. is under the specified thickness after machining.

All of the following are properties of DOT 3 and DOT 4 brake fluid, EXCEPT: Choose one answer. a. high boiling point. b. low freezing point. c. it is not harmful to painted surfaces. d. hygroscopic.

c. it is not harmful to painted surfaces

A ________________ transfers hydraulic fluid through lines and hoses to the wheel brake units. Choose one answer. a. relay valve b. brake booster c. master cylinder d. None of the answers listed

c. master cylinder

Parking brakes can be adjusted in which location? Choose one answer. a. The rear calipers b. A nut on a cable under the vehicle c. The brake lever assembly d. All of the answers listed

d. All of the answers listed

Which of the following is not a typical type of wheel bearing? Choose one answer. a. Double-row ball bearing b. Tapered roller bearing c. Ball bearing d. Needle bearing

d. Needle bearing

Technician A says that lift kits have no effect on braking or vehicle handling. Technician B says that lift kits only affect handling, not braking. Who is correct? Choose one answer. a. Technician A b. Technician B c. Both Technician A and Technician B d. Neither Technician A nor Technician B

d. Neither Technician A nor Technician B

Technician A says that using gasoline is an approved method of cleaning brake system components. Technician B says that using kerosene is an approved method of cleaning brake system components. Who is correct? Choose one answer. a. Technician A b. Technician B c. Both Technician A and Technician B d. Neither Technician A nor Technician B

d. Neither Technician A nor Technician B

Technician A says that vacuum boosters use only single diaphragms to extract power from the atmospheric pressure and transmit force to the master cylinder. Technician B says that a one-way vacuum check valve is used to prevent brake fluid from entering the vacuum booster. Who is correct? Choose one answer. a. Technician A b. Technician B c. Both Technician A and Technician B d. Neither Technician A nor Technician B

d. Neither Technician A nor Technician B

Technician A says that brake spring pliers are used to remove and install hold-down springs. Technician B says that brake spring pliers are used to remove the parking brake cable from the backing plate. Who is correct? Choose one answer. a. Technician A b. Technician B c. Both Technician A and Technician B d. Neither technician A nor Technician B

d. Neither technician A nor Technician B

When diagnosing a stop light system for the stop lights illuminating all the time (brake pedal not depressed), which of the following is LEAST likely to be the cause? Choose one answer. a. Defective brake switch b. Short to power c. Misadjusted brake pedal d. Short to ground

d. Short to ground

All of the following are disadvantages to a jake brake, EXCEPT: Choose one answer. a. it produces a chattering, machine-gun sound. b. it requires additional mufflers. c. it is very noisy. d. it increases brake effectiveness.

d. it increases brake effectiveness.