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Quiz Session - Attempts With Random Questions

ASE T Series Exam Questions

Page 3 of 20

41.

Which of the following is least likely to result from a drive belt that is adjusted too tightly?

  • A squealing noise

  • Internal engine damage 

  • Damage to belt-driven accessories 

  • Accelerated belt wear

Correct answer: A squealing noise

A belt that is too loose typically results in a squealing noise. A belt that is adjusted too tightly can cause internal engine damage, damage to belt-driven accessories, and accelerated belt wear.

42.

What is Plastigauge used to measure?

  • Rod bearing clearance

  • Crankshaft end play

  • Piston ring end gap

  • Piston to cylinder wall clearance 

Correct answer: Rod bearing clearance

Plastigauge is used to measure both rod and main bearing clearance. It is inserted between the bearing and crankshaft journal, then the cap is torqued to specification. The cap is then removed and the width of the crushed Plastigauge strip is used to determine bearing clearance. 

43.

Technician A says neglecting to service the cabin filter can result in reduced airflow to the HVAC system. Technician B says the cabin filter is usually located inside the engine compartment near the HVAC duct. Who is correct?

  • Technician A

  • Technician B

  • Both A and B

  • Neither A nor B

Correct answer: Technician A

Only technician A is correct. Neglecting to service the cabin filter can result in reduced airflow to the HVAC system. Technician B is wrong because the filter is usually located under the dash in the HVAC assembly, next to the blower motor. 

44.

Technician A says the engine must be re-timed after replacing the power steering pump drive on a truck with a diesel engine. Technician B says a bad power steering pump can be identified by score marks on the pump drive gear. Who is correct?

  • Technician B

  • Technician A

  • Both A and B

  • Neither A nor B

Correct answer: Technician B

Only technician B is correct. A bad power steering pump can be identified by score marks on the pump drive gear. Technician A is wrong because there is no need to re-time the engine after replacing the power steering pump drive on a diesel-powered truck. 

45.

Which wire color is used for the trailer/license plate lights in a seven-wire trailer cord? 

  • Brown

  • Green

  • Red

  • Blue

Correct answer: Brown

The seven-wire trailer cord used in the U.S. uses standard wire coloring. Brown is the color used for the trailer and license plate lights.

46.

U-joint damage where the metal flakes off is referred to as:

  • Spalling

  • Galling

  • Brinelling

  • Scaling 

Correct answer: Spalling

Spalling is when metal chips, scales or flakes off due to fatigue. It is usually found on splines and u-joint bearings. 

47.

Mary complains that her windshield wipers work on one speed but not the other. Which of the following is the most likely cause?

  • Worn motor brushes 

  • A blown motor fuse

  • High resistance in the motor supply circuit

  • A poor motor ground

Correct answer: Worn motor brushes

Permanent magnet motors use a high and low speed brush set. If the motor works okay on one speed and not on the other, the problem is likely worn motor brushes. 

48.

Technician A says truck clutches are hydraulically controlled. Technician B says truck clutches are pneumatically controlled. 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. Unlike those in passenger vehicles, truck clutches are both hydraulically and pneumatically controlled. The hydraulic force from the master cylinder is used to activate the pneumatic servo cylinder, which in turn moves the release fork. 

49.

Technician A says slow shifts can be caused by failed cylinder piston o-rings. Technician B says when a failure occurs in the air supply to the range shift cylinder, the auxiliary section will go to the next selected range. Who is correct?

  • Technician A

  • Technician B

  • Neither A nor B

  • Both A and B

Correct answer: Technician A

Only technician A is correct. Failed cylinder piston o-rings can result in a transmission that shifts slowly or fails to shift at all. Technician B is wrong because if a failure occurs in the air supply to the range shift cylinder, the auxiliary section will remain in the previously selected range. 

50.

Technician A says some self-adjusting clutches use sliding cams that are spring loaded. Technician B says the wear compensator automatically adjusts for for clutch facing wear every time the clutch is used. 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 wear compensator automatically adjusts for for clutch facing wear every time the clutch is used. Once the clutch is worn past a certain point, the compensator allows the adjustment ring to move toward the engine. Technician B is also correct that some adjustment clutches use two sliding cams, which take up the extra clearance to compensate for clutch wear.

51.

Air system pressure should be able to rise from 85 psi to 100 psi in how many seconds or less?

  • 45 seconds

  • 15 seconds

  • 30 seconds

  • 25 seconds

Correct answer: 45 seconds

System air buildup times are defined by legislation. Air buildup time is a common check performed by enforcement agencies. The pressure should build from 85 to 100 psi within 45 seconds in dual air systems. On full engine throttle, a vehicle is capable of building pressure from 85 to 100 psi in 25 seconds or less.

52.

Cab ride height is typically measured at the:

  • Upper and lower plates 

  • Roof and frame

  • Ground and bottom of cab

  • Roof and ground

Correct answer: Upper and lower plates

A tape measure should be used to check cab ride height at the location specified by the manufacturer, which is usually the upper and lower plates. 

53.

What is the maximum amount of U-joint play that's still acceptable?

  • 0.006"

  • 0.007"

  • 0.005"

  • 0.004"

Correct answer: 0.006" 

A U-joint's play should never exceed 0.006" or it will require replacement. When excessive play exists, it can cause driveline vibration.

54.

A voltage drop test is used to locate what?

  • High resistance in a circuit 

  • An open circuit 

  • A short to power

  • A short to ground

Correct answer: High resistance in a circuit 

A voltage drop test is used to locate high resistance components or wiring in a circuit. The test is performed using a multimeter.

55.

The inner edge of a tire shows accelerated wear. Which of the following is the most likely cause?

  • Camber out of specification

  • Overinflated tires

  • Caster out of specification

  • Underinflated tires

Correct answer: Camber out of specification

Camber is the alignment angle that determines the inward or outward tilt of the top of the wheel and tire assembly when viewed from the front of the vehicle. Incorrect camber can cause accelerated wear to the inner and outer edges of the tires.

56.

U-bolts must be torqued how often?

  • Every 36,000 miles

  • Every 12,000 miles

  • Every 24,000 miles

  • Every 60,000 miles

Correct answer: Every 36,000 miles

New U-bolts should be torqued after 1,000 miles and every 36,000 miles thereafter.

57.

Short outboard friction pad life typically indicates what?

  • Seized caliper slide pins

  • The wrong brake pads

  • A leaking air chamber

  • A faulty S-camshaft

Correct answer: Seized caliper slide pins

Short outboard friction pad life typically indicates that the caliper is no longer sliding. This is usually caused by seized or faulty caliper slide pins.

58.

Technician A says some diesel trucks use the alternator R terminal to provide the tachometer signal to the instrument cluster. Technician B says some diesel trucks use the primary ignition coil to provide the tachometer signal to the instrument cluster. Who is correct?

  • Technician A

  • Technician B

  • Both A and B

  • Neither A nor B

Correct answer: Technician A 

Only technician A is correct. Older medium-duty trucks use the alternator R terminal to provide the tachometer signal to the instrument cluster. Diesel engines do not use an ignition coil, so technician B is wrong.

59.

Technician A says cylinder head bolts should be removed in the same sequence as they are tightened. Technician B says a cylinder head should be removed only when the engine is cold. Who is correct?

  • Technician B

  • Technician A

  • Both A and B

  • Neither A nor B

Correct answer: Technician B

Technician B is correct; cylinder heads should only be removed when the engine is cold to prevent warpage. Technician A is wrong because cylinder head bolts should be removed in a sequence opposite that of tightening. 

60.

Technician A says the engine must be running when you are recharging the A/C system. Technician B says all manufacturers recommend high-side charging procedures. 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. Modern A/C systems do not require the engine to be running when you recharge the A/C system, and manufacturers recommend high-side or low-side charging procedures. 

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