×

Quiz Session - Attempts With Random Questions

ASE T Series Exam Questions

Page 8 of 20

141.

Technician A says brake pads are considered "foundation" brake components. Technician B says an S-cam is considered a "foundation" brake component. Who is correct?

  • Both A and B

  • Technician A

  • Technician B

  • Neither A nor B

Correct answer: Both A and B

The foundation brake assembly is comprised of the following: S-cam, or disc brake mechanism; brake linings or pads; and related parts, such as the brake chambers, slack adjusters and parking brake components. 

142.

Technician A says an incorrect wheel speed sensor adjustment can cause an ABS trailer failure. Technician B says an open in the supply lead from the trailer can cause an ABS trailer failure. 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 trailer's ABS failure could be caused by either an incorrect wheel speed sensor adjustment or an open in the supply lead from the trailer.

143.

Technician A says low pressure warning switches open when pressure is above 60 psi. Technician B says low pressure warning switches close when pressure is above 70 psi. 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. The low pressure warning switch is used to trigger an alert to warn the driver when air pressure drops below 60 psi. The low pressure warning switch closes to complete the warning circuit when pressure is above 60 psi. The low pressure warning switch opens to break the circuit when pressure is above 70 psi.

144.

The EFE system is used to:

  • Prevent fuel condensation during cold engine operation

  • Prevent fuel vapor from entering the atmosphere 

  • Get the engine up to operating temperature quickly 

  • Promote chemical reactions inside the catalytic converter

Correct answer: Prevent fuel condensation during cold engine operation

The early fuel evaporation (EFE) system is designed to divert exhaust gases through a passage in the intake manifold during cold engine operation. Some systems also use an electric heating grid to warm the intake. The purpose of the EFE system is to prevent fuel condensation during cold engine operation. 

145.

Technician A says that before performing a dynamic balance of the wheels/tires, the tire pressure should be checked. Technician B says that before performing a dynamic balance of the wheels/tires, proper wheel bearing end play should be checked. 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. Before performing a dynamic balance of the wheels/tires, the following should be done: visually inspect the wheel/tire for damage, measure and correct tire pressure, check proper wheel bearing end play, and inspect the steering and suspension components. 

146.

A valve head is found to be cupped. Technician A says this is the result of the valve contacting the piston. Technician B says the valve can be machined and reused. 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. When repairing a cylinder head, the valves should be closely examined to determine if they can be reused and to determine the cause of failure. A valve that is cupped indicates that it was exposed to excessive heat. In this case, the valve should be discarded. 

147.

A growling noise is heard when the A/C compressor is disengaged. Which of the following is the most likely cause?

  • Worn compressor pulley bearing

  • Worn internal compressor bearings

  • Loose clutch hub

  • Dry blower motor bearings 

Correct answer: Worn compressor pulley bearing

A worn compressor pulley bearing will cause a growling noise when the compressor is disengaged. On the other hand, worn internal compressor bearings will cause a growling noise when the compressor is engaged. 

148.

A short in the sending unit wire will typically cause the gauge needle to move to:

  • The top of the display 

  • The bottom of the display 

  • The middle of the display 

  • Three-quarters of the way up the display 

Correct answer: The top of the display

Typically, a short in the sending unit wire will lower resistance in that circuit and cause the gauge needle to read high. 

149.

Technician A says camshaft bearings should always be installed with the insert positioned toward the back of the bore. Technician B says most OHV camshafts are removed and installed with a camshaft bushing driver and hammer. Who is correct?

  • Technician B

  • Technician A

  • Both A and B

  • Neither A nor B

Correct answer: Technician B

Technician B is correct that OHV camshafts are removed and installed with a camshaft bushing driver and hammer. Technician A is wrong because the way the bearing insert is installed depends upon the location of the oil passages in the bearing bore. This means that the bearing may be installed with the insert positioned toward the back of the bore, the front of the bore, or even the center of the bore, depending on oil hole location.

150.

Technician A says a parabolic spring is one where the individual leaves are the same width for the length of the assembly. Technician B says a leaf spring is one where the leaf width is greater at the center of the spring. 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 leaf spring is one where the individual leaves are the same width for the length of the assembly. A parabolic spring is one where the leaf width is greater at the center of the spring and decreases toward the end of the leaf.

151.

What is the stoichiometric ratio?

  • 15:1

  • 20:1

  • 10:1

  • 8:1

Correct answer: 15:1

Engines require approximately 10,000 gallons of air for every one gallon of fuel. The ideal air-to-fuel ratio by mass is 15:1 and is referred to as the stoichiometric ratio. 

152.

A circuit is being tested for a short. Technician A says a larger fuse can be installed for testing purposes. Technician B says an open circuit can't be checked with a test probe. 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. Installing a larger fuse for testing purposes can result in damage to the circuit, such as melted wires. An open circuit can be checked with a test probe by applying voltage at one end and then using the probe to check for voltage downstream until you find no reading. 

153.

Typical power steering test pressure is between:

  • 500 and 1,000 psi

  • 150 and 250 psi

  • 250 and 500 psi

  • 1,000 and 1,500 psi

Correct answer: 500 and 1,000 psi

It's often necessary to check power steering pressure and flow during diagnosis. Typical power steering test pressure is between 500 and 1,000 psi. The OEM repair information should be consulted for the exact specification. 

154.

Technician A says high-side A/C components should feel cool or cold to the touch. Technician B says it is normal for the receiver/dryer to feel cold to the touch. 

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. Low-side A/C components should feel cool or cold to the touch, and high-side A/C components should feel warm or hot to the touch.

If the receiver/dryer feels cold to the touch, there could be a restriction in the pickup tube. 

155.

Technician A says that in some A/C systems temperature is controlled by regulating the amount of air allowed to flow through the heater and evaporator cores. Technician B says that in some A/C systems temperature is controlled by opening and closing a water control valve. 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. The temperature of the A/C system is generally controlled in one of two ways: by regulating the amount of air allowed to flow through the heater and evaporator cores or by opening and closing a water control valve.

156.

All of the following are true regarding transfer cases except:

  • They have one shift fork

  • They may be of single or two-speed design

  • They may have a PTO unit attached

  • Most are lubricated by gear oil throw-off

Correct answer: They have one shift fork

Generally, transfer cases have two shift forks: one for selecting among low, neutral and high range, and the other for engaging the front axle.

157.

Technician A says servo action occurs when the shoes are driven into the drum and rotate as a pair within the drum before grabbing. Technician B says self-energizing occurs when the action of one shoe is guided by that of the other. 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. Hydraulic foundation brakes use servo and nonservo principles. Servo action occurs when one shoe is guided by the movement of the other, causing both shoes to act as a single unit. On the other hand, self-energizing occurs when shoes are driven into the drum and rotate as a pair within the drum before grabbing.

158.

All of the following are used as steering hydraulic fluid except:

  • Gear oil

  • Engine oil

  • Automatic transmission fluid 

  • Power steering fluid 

Correct answer: Gear oil

Depending on the manufacturer, either engine oil, automatic transmission fluid or power steering fluid may be used as steering hydraulic fluid. It's important to check the service information to determine the correct fluid. 

159.

What should be used for u-joint lubrication?

  • Lithium-based grease

  • Multi-purpose grease

  • Fluoroether-based grease

  • Silicone grease 

Correct answer: Lithium-based grease

Lithium-based, extreme pressure grease should be used when lubricating u-joints. Improper u-joint lubrication can lead to noise from the joint, as well as joint damage. 

160.

Technician A says some temperature control valves are electrically activated. Technician B says some temperature control valves are hydraulically activated. Who is correct?

  • Technician A

  • Technician B

  • Both A and B

  • Neither A nor B

Correct answer: Technician A

Only technician A is correct. Temperature control valves can be activated by electric motors, vacuum motors or air cylinders. 

×