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Quiz Session - Attempts With Random Questions

ASE T Series Exam Questions

Page 7 of 20

121.

Generally, how much clearance should there be between the clutch release fingers and the release bearing?

  • 0.125"

  • 0.0125"

  • 0.00125"

  • 1.25"

Correct answer: 0.125"

It's important that the clutch linkage be adjusted correctly to prevent release bearing wear and improper clutch operation. Generally, there should be 0.125" of clearance between the clutch release fingers and the release bearing. 

122.

A starter current draw test is being performed. Technician A says low current draw may be caused by excessive resistance in the starter circuit. Technician B says high current draw may be caused by an internal engine problem. Who is correct?

  • Both A and B

  • Technician A

  • Technician B

  • Neither A nor B

Correct answer: Both A and B

Both technicians are correct. High starter current draw indicates a worn starter or internal engine problem. On the other hand, low starter current draw indicates excessive resistance in the starter circuit. 

123.

Technician A says a yellow parking brake valve is a trailer supply valve. Technician B says a red parking brake valve is a system parking brake valve. Who is correct?

  • Neither A nor B

  • Technician A

  • Technician B

  • Both A and B

Correct answer: Neither A nor B

Both technicians are wrong. A yellow diamond-shaped valve indicates the system parking brake control valve. A red octagonal-shaped valve indicates the trailer supply valve.

124.

What is the typical amount of oil added to various points throughout the refrigeration system?

  • 1 to 2 ounces 

  • .5 to 1 ounces 

  • 2 to 3 ounces 

  • 4 to 5 ounces 

Correct answer: 1 to 2 ounces

It's important that refrigerant oil be installed at various points throughout the A/C system so that there is a continuous flow of oil to the compressor. Usually, 1 to 2 ounces of oil are added to the evaporator, the condenser, and the receiver-drier. 

125.

A driver complains of a noticeable mildew smell during A/C operation. Which of the following is the most likely cause?

  • Fungus growing on the evaporator core

  • A leaking evaporator core

  • A leaking heater core

  • A dirty cabin filter 

Correct answer: Fungus growing on the evaporator core

Fungus growing on the evaporator core can result in a mildew smell that is present when the A/C is turned on. Removing the core and cleaning it with vinegar and water, or a commercial cleaner, will solve the problem. 

126.

An engine vacuum test is being performed. The gauge reading is steady and low. Which of the following could be the cause?

  • Late ignition timing 

  • Burnt valves 

  • Weak valve springs

  • A leaking head gasket

Correct answer: Late ignition timing

Late ignition timing will result in a vacuum reading that is low and steady. A blown head gasket, weak valve springs or burnt valves would result in a vacuum reading that fluctuates. 

127.

All of the following could cause low pressure on both the high and low sides, except:

  • Restricted evaporator air flow

  • Low refrigerant charge

  • Defective O-ring

  • Cracked rubber A/C hose

Correct answer: Restricted evaporator air flow

Restricted evaporator air flow would cause low airflow from the vents.

A low refrigerant charge leads to low pressure on both the high and low sides, while a defective O-ring or a cracked rubber hose may be the reason why the refrigerant is leaking.

128.

What is the first step to take when performing a steering gear internal leakage test?

  • Prevent operation of the internal unloading valves 

  • Have an assistant turn the steering wheel 

  • Check the system pressure

  • Consult the factory information for flow specifications 

Correct answer: Prevent operation of the internal unloading valves 

To perform a steering gear internal leakage test, first prevent operation of the gear's internal unloading valves. Then have an assistant turn the steering wheel while holding it in the lock position for a few seconds during each turn. The system pressure should be at pump relief pressure. Compare flow to the factory specifications for gear leakage. 

129.

Technician A says a faulty PCV system can result in fines and penalties. Technician B says a faulty PCV system can cause poor engine performance. Who is correct? 

  • Both A and B

  • Technician A

  • Technician B

  • Neither A nor B

Correct answer: Both A and B

Both technicians are correct. A faulty PCV system can result in erratic engine operation as well as higher than normal emissions. which in turn can result in fines and penalties. 

130.

A driver complains of wheel hop. Which of the following is the most likely cause?

  • Improper wheel balance

  • A broken tire belt

  • Overinflated tires

  • Improper wheel alignment 

Correct answer: Improper wheel balance

Wheel hop is typically caused by improper wheel balance or worn steering/suspension parts. 

131.

A driver complains of wipers that consistently park in the wrong position. Which of the following is the most likely cause?

  • Misadjusted wiper  linkage 

  • Binding wiper linkage 

  • A defective wiper park switch 

  • A faulty wiper motor 

Correct answer: Misadjusted wiper linkage 

Wipers that consistently park in the wrong position are misadjusted. Correcting the adjustment using the factory indexing marks will solve the problem. 

132.

The headlights of a vehicle are brighter than normal. Which of the following is the most likely cause?

  • A faulty alternator

  • Poor grounds

  • A faulty relay

  • An overcharged battery

Correct answer: A faulty alternator

A faulty alternator could cause high charging system voltage, resulting in headlights that are brighter than normal. 

133.

Wheel runout describes which of the following conditions?

  • Lateral and radial movement

  • Lateral movement

  • Radial movement

  • Side-to-side movement

Correct answer: Lateral and radial movement

Wheel runout is the up-and-down or radial and side-to-side or lateral movement of the tire/wheel while rotating. It can be measured with a dial indicator while turning the wheel.

Runout can lead to vibration of the steering wheel with front tire issues or chassis vibration if the problem is in the rear. 

134.

Typically, liner taper and out-of-round should not exceed how many inches? 

  • .001

  • .003

  • .010

  • .100

Correct answer: .001

Cylinder walls or liners should be checked for taper and out-of-round using a micrometer, snap gauge or dial-bore gauge. Generally, liner taper and out-of-round should not exceed .001". If the measurement is greater than that, some manufacturers allow the cylinders to be bored oversized. Another method is boring and resleeving to the original diameter. 

135.

What should the cooling system be pressurized to when performing a test to locate leaks?

  • Value on radiator cap

  • 10 PSI

  • 20 PSI

  • 15 PSI

Correct answer: Value on radiator cap

The normal pressure for a cooling system is found on the cap. When performing a cooling system pressure test to check for leaks, the pressure tester should also be set to that amount. Anything less might not properly pressurize the system to locate leaks, and anything more could cause damage.

136.

Technician A says the service stoplight switch is normally closed. Technician B says the parking brake switch is normally open. Who is correct?

  • Neither A nor B

  • Technician A

  • Technician B

  • Both A and B

Correct answer: Neither A nor B

Both technicians are wrong. Trucks with air brakes have both a service stoplight switch and a parking brake light switch, either of which can trigger the brake light circuit. Both technicians are wrong because the service stoplight switch is normally open, and the parking brake switch is normally closed.

137.

What should be used to test automatic drain valve heaters?

  • Ohmmeter 

  • Voltmeter

  • Ammeter 

  • Oscilloscope

Correct answer: Ohmmeter

Automatic drain valves can become clogged with sludge and require periodic cleaning. Some also have heaters that can be tested for internal resistance with an ohmmeter. 

138.

A high fuel trim could indicate what?

  • A vacuum leak

  • A leaking fuel injector

  • A fouled spark plug

  • A restricted fuel return line

Correct answer: A vacuum leak

A high fuel trim reading indicates a lean condition where the ECM is adding fuel to bring the mixture back to stoichiometric. On the other hand, a low fuel trim reading indicates a rich condition where the ECM is trying to subtract fuel.

139.

What type of grease should be used to lubricate hinges?

  • Lithium

  • Multipurpose 

  • Dielectric 

  • Bearing 

Correct answer: Lithium 

Light machine oil and a lithium-based grease should be used to lubricate hinges and latches. 

140.

Technician A says two types of brake line flares are ISO and double flare. Technician B says two types of brake line flares are JIC and SAE. Who is correct?

  • Technician A 

  • Technician B

  • Both A and B

  • Neither A nor B

Correct answer: Technician A

Only technician A is correct. Two types of brake line tubing flares are used in trucks: International Organization for Standardization (ISO) and double flare. ISO uses an outward flare, whereas double flare creates a double wall at the nipple. 

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