×

Quiz Session - Attempts With Random Questions

ASE T Series Exam Questions

Page 6 of 20

101.

What is the last connection that should be made when jump-starting a vehicle?

  • The negative battery terminal of the dead vehicle 

  • The negative battery terminal of the booster vehicle 

  • The positive battery terminal of the dead vehicle 

  • The positive battery terminal of the booster vehicle 

Correct answer: The negative battery terminal of the dead vehicle 

First, connect the positive terminals of both batteries with one cable. Then, connect the ground booster cable to the negative battery terminal of the booster vehicle, and make the last connection to the negative battery terminal of the dead vehicle. 

102.

Technician A says shield metal arc welding (SMAW) can be used for steel frame repair. Technician B says gas metal arc welding (GMAW) can be used for steel frame repair. 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. Recommended methods for steel frame crack repair include shielded metal arc welding, gas metal arc welding, gas tungsten arc welding, and flux cored arc welding. 

103.

Piston-to-cylinder wall clearance is measured by subtracting which measurement from the size of the cylinder bore?

  • The size of the piston skirt 

  • The size of the piston land

  • The diameter of the piston rings

  • The diameter of the oil control rings

Correct answer: The size of the piston skirt

Piston-to-cylinder wall clearance can be measured by subtracting the size of the piston skirt from the size of the cylinder bore. If this measurement is not within specification, the cylinder may need to be bored to accept over-sized pistons. 

104.

All of the following are used as inputs for cruise control operation except:

  • Engine speed sensor 

  • Vehicle speed sensor 

  • Chassis brake status

  • Programmed speed value from driver

Correct answer: Engine speed sensor

Cruise control on late-model vehicles is managed by the ECM and/or chassis electronics. Primary input to the cruise control system comes from the vehicle speed sensor, chassis brake status, and speed value programmed into the management system by the driver.

105.

What color of exhaust smoke indicates a potential injector misfire?

  • White

  • Black

  • Blue

  • Gray

Correct answer: White

White exhaust smoke indicates an internal coolant leak or injector misfire.

Blue or black smoke indicates the engine is burning oil, whereas gray or black smoke indicates unburned fuel or an improper grade of fuel.

106.

Technician A says clutch discs can be made with two different facings: either organic or semi-metallic. Technician B says rigid clutch discs contain facings in a spline center hub.

Who is correct?

  • Technician B

  • Technician A

  • Both A and B

  • Neither A nor B

Correct answer: Technician B

Technician A is incorrect. Clutch disc facings can be either organic or ceramic. 

Technician B is correct. Rigid clutch discs contain facings in a spline center hub that are linked by a solid metal disc. 

107.

Which type of fluid is typically used in a hydro-boost brake booster?

  • Power steering fluid

  • Brake fluid 

  • Gear oil

  • Engine oil

Correct answer: Power steering fluid 

Hydro-boost units are often powered by the truck's power steering pump. As such, the units use power steering fluid or automatic transmission fluid. 

108.

Technician A says it's okay to service coolant filters with an SCA charge more often than the recommendations suggest. Technician B says the SCA package recommended by the manufacturer is largely based on whether the engine has wet or dry cylinder liners. Who is correct?

  • Technician B

  • Technician A

  • Both A and B

  • Neither A nor B

Correct answer: Technician B

Only technician B is correct. The supplemental coolant additives (SCA) package recommended by the manufacturer is largely based on whether the engine has wet or dry cylinder liners. Technician A is wrong because coolant filters that contain an SCA charge should never be over-serviced. 

109.

A/C compressors can incorporate all of the following designs EXCEPT:

  • Centrifugal 

  • Scroll

  • Rotary vane

  • Piston

Correct answer: Centrifugal

The automotive compressor assembly is not manufactured in a centrifugal design.A/C compressors can be a scroll, rotary vane, or piston design. While each one has its own purpose, they also share some commonalities. 

110.

Technician A says air brake shoes with a lining thickness of less than 1/2" at the center should be replaced. Technician B says hydraulic brake shoes with a lining thickness of less than 1/6" should be replaced. Who is correct?

  • Technician B

  • Technician A

  • Both A and B

  • Neither A nor B

Correct answer: Technician B

Only technician B is correct. Air brake shoes with a lining thickness of less than 1/4" at the center, not 1/2", should be replaced. Hydraulic brake shoes with a lining thickness of less than 1/6" should be replaced. 

111.

Technician A says parasitic draw should be checked by inserting an ammeter in series with the negative battery cable and negative battery post. Technician B says parasitic draw should be checked by inserting a voltmeter in series with the positive battery cable. Who is correct?

  • Technician A 

  • Technician B

  • Both A and B

  • Neither A nor B

Correct answer: Technician A

Only technician A is correct. Parasitic draw can be checked by inserting an ammeter in series with the negative battery cable and negative battery post. If excessive current draw is found, each of the fuses should be removed until the draw goes away. This helps determine the problem circuit. 

112.

The treadle valve is used to do all of the following except:

  • Trip the low pressure dash light

  • Actuate the brakes that are plumbed into the primary circuit

  • Actuate the relay or secondary piston

  • Provide brake feel

Correct answer: Trip the low pressure dash light

The treadle valve is actuated by driver foot pressure. It then forces the primary piston downward  to close the exhaust port and modulate air proportional to piston travels. By doing this, the treadle valve is able to actuate the brakes that are plumbed into the primary circuit, actuate the relay or secondary piston, and provide brake feel. 

113.

A unitized wheel end contains all of the following components, EXCEPT:

  • Castel nut

  • Tabbed washer

  • Inner D washer

  • Outer wheel bearing nut

Correct answer: Castel nut

The unitized wheel end contains the tabbed washer, inner D washer, and outer wheel bearing nut. It also houses the inner wheel bearing nut and protective hubcap. 

The castel nut is part of a conventional, adjustable wheel-end system that uses standard bearings. 

114.

How many measurements should be taken on a brake drum to determine whether it can be resurfaced?

  • Two

  • One

  • Three

  • Four

Correct answer: Two

Brake drums can be reused if they are within the manufacturer's specifications. There should be a minimum of two measurements taken on the drum to check whether it meets the criteria for resurfacing. These measurements should be taken 90 degrees apart in the center of the rubbing path. 

115.

Technician A says the automatic stop/restart feature built into the engine management system helps keep the sleeper comfortable. Technician B says it helps reduce emissions. 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 automatic start/stop feature built into the engine management system keeps the engine at a certain operating temperature and maintains battery charge level. This helps maintain a comfortable temperature inside both the cab and the sleeper. It also helps reduce emissions and extend engine life. 

116.

What type of sensor is an output shaft speed sensor?

  • Inductive pulse

  • Hall effect

  • Transducer

  • Reed switch

Correct answer: Inductive pulse

Speed sensors are used to communicate input shaft, main shaft and output shaft speed to the ECU. All three of these sensors are of the inductive pulse design, which uses a magnetic pickup and tone ring to generate a signal the computer can use.

117.

Technician A says the negative battery cable should be removed first. Technician B says the negative battery cable should be reconnected first. Who is correct?

  • Technician A

  • Technician B

  • Both A and B

  • Neither A nor B

Correct answer: Technician A

Only technician A is correct. The negative battery cable should be removed first and reconnected last to prevent arcing. 

118.

A battery charge rate should never exceed which of the following?

  • 50 to 60 amp charge rate

  • 5 to 10 amp charge rate

  • 10 to 20 amp charge rate

  • 30 to 40 amp charge rate

Correct answer: 50 to 60 amp charge rate

When slow charging, a 5 to 10 amp rate is usually used. If fast charging is required, a battery should never be charged at more than a 50 to 60 amp charge rate.

119.

What is the definition of an inactive code from the electronic engine diagnostic system?

  • Code that was once active in the past

  • Code indicating a current fault that isn't critical

  • Code that will not set in the ECM

  • Code that indicates a problem with a system not currently in use

Correct answer: Code that was once active in the past

An inactive code is one that was active in the past. The malfunction may have been corrected, but the code has not been reset.

An active code shows a failure that is currently happening. 

120.

All of the following are part of a routine suspension inspection except:

  • Check vehicle alignment 

  • Check wheel nut torque 

  • Check tire tread

  • Inspect the u-bolts for damage 

Correct answer: Check vehicle alignment

A check of the vehicle's alignment typically only has to be performed if the driver complains of alignment-related problems or there is abnormal tire wear.

×