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Quiz Session - Attempts With Random Questions

ASE G1 Exam Questions

Page 7 of 10

121.

Two technicians are discussing the causes of Constant Velovity (CV) joint failure. Technician A says excessive speed while turning is a common cause of CV joint failure. Technician B says dirt and water contamination is a common cause of CV joint failure. Who is correct?

  • Technician B

  • Technician A

  • Both A and B

  • Neither A nor B

Correct answer: Technician B

Technician B is correct because torn or cracked CV boots allow the lubricating grease to escape and contaminants in. These contaminants combined with lack of lubrication cause the CV joints to fail. Damaged inner CV joints may vibrate at higher speeds and damaged outer CV joints often make a rhythmic clicking or popping noise on sharp turns. Technician A is incorrect because the known root cause of CV joint failure is a damaged boot. 

122.

Two technicians are discussing the process of checking drive belts. Technician A says V-belts should be checked with a belt wear gauge. Technician B says modern serpentine belts may have excessive wear without showing the usual signs of dryness and cracking. Who is correct?

  • Technician B

  • Technician A

  • Both A and B

  • Neither A nor B

Correct answer: Technician B

Technician B is correct - modern serpentine belts do not show the usual signs of dryness, chunking, and cracking as the belt ages. Technician A is incorrect because the best way to check belt tension is with a belt tension gauge, and a belt wear gauge cannot be used on a traditional V-belt.

123.

Technician A says continuously variable transaxles (CVTs) have an internal drive belt to transmit power between two pulleys. Technician B says manufacturers of CVTs require additional viscosity improvers to be added to the fluid at regular intervals. Who is correct?

  • Technician A

  • Technician B

  • Both A and B

  • Neither A nor B

Correct answer: Technician A

Technician A is correct because CVTs use a metal belt to transmit power between two variable diameter pulleys. The size of the pulleys varies to change the transmission input-to-output ratio. Many drivers with early CVTs had concerns about the lack of the customary upshifts felt on vehicles equipped with automatic transmissions. This prompted manufacturers to program shift feel into the transmission control modules to give drivers the feel of upshifts.

Technician B is incorrect because manufacturers have strict requirements for CVT fluids and prohibit aftermarket additives.

124.

Wheel studs are typically:

  • Pressed into the flange 

  • Bolted into the flange

  • Welded to the flange 

  • Threaded into the flange

Correct answer: Pressed into the flange

Wheel studs are typically pressed into the axle flange from the back. Wheel studs have splines at the non-threaded end to resist turning. Special tools are available to assist the technicians with the removal and installation of wheel studs.

125.

Two technicians are discussing the proper fluid level in a manual transmission. Technician A says the manual transmission fluid level is checked by using a pressure gauge. Technician B says the fluid level is usually checked by removing a threaded metal plug. Who is correct?

  • Technician B

  • Technician A

  • Both A and B

  • Neither A nor B

Correct answer: Technician B

Technician B is correct because the fluid level is checked in most manual transmissions by removing a metal plug from the side of the unit.

Technician A is incorrect. Pressure gauges are not used to check fluid levels on manual transmissions. Pressure gauges are used for diagnosis of automatic transmissions.

126.

Which of the following is the MOST LIKELY to cause the U-joints (universal joints) on a one-piece driveshaft to be out of phase?

  • A twisted driveshaft

  • Incorrectly installed U- joints

  • A damaged pinion gear flange

  • A misaligned center support bearing

Correct answer: A twisted driveshaft

A driveshaft can twist during extraordinary driving conditions and can cause the U-joints to be out of phase or misaligned. Misaligned U-joints will cause vibration that varies with road speed.

Incorrectly installed U-joints can also cause vibration, but will not cause an out of phase condition. A damaged pinion gear flange can also cause a vibration, but will not affect the alignment of the U-joints. Center support bearings are not used with one-piece driveshafts and will not cause the misalignment described.

127.

Technician A says the oily residue around the throttle body and in the intake system often comes from the Positive Crankcase Ventilation (PCV) system. Technician B says the oily residue around the throttle body and in the intake system comes from the evaporative emissions system. Who is correct?

  • Technician A

  • Technician B

  • Both A and B

  • Neither A nor B

Correct answer: Technician A

Technician A is correct because the PCV system draws crankcase vapors into the air intake system. The crankcase vapors contain compression blow-by that enter the crankcase past the piston rings. These vapors contain carbon and the carbon contributes to intake deposits. Engines with excessive blow-by have more throttle body and intake system carbon deposits. It is important to use intake and throttle body cleaning chemicals that are approved by the manufacturer of the automobile.

Technician B is incorrect because the evaporative emissions system captures fuel vapors and draws them into the air intake system. The fuel vapors from the evaporative emissions system will not cause deposits in the intake system. 

128.

Technician A says hydraulic clutches require adjustment as part of periodic maintenance. Technician B says a clutch that will not release is an indication of a leaking clutch hydraulic system. Who is correct?

  • Technician B

  • Technician A

  • Both A and B

  • Neither A nor B

Correct answer: Technician B

Technician B is correct. Hydraulic clutches depend on pressure generated from the clutch master cylinder to release the clutch.

Technician A is incorrect. Hydraulic clutches do not require periodic adjustment. Older style mechanical clutch linkages can be adjusted..

129.

Two technicians are discussing the procedure for replacing front disc brakes. Technician A says a C-clamp is used to remove the caliper. Technician B says the caliper piston can be pushed into the bore using a piston retracting tool. Who is correct?

  • Technician B

  • Technician A

  • Both A and B

  • Neither A nor B

Correct answer: Technician B

Technician B is correct because a piston retracting tool is approved for pressing the caliper piston back into the bore.

Technician A is incorrect because a C-clamp is not used to remove a caliper. A C-clamp may be used instead of a piston retracting tool to press the caliper piston back into its bore. 

130.

Technician A says a current clamp can be used to measure electrical current in a circuit. Technician B says current can be measured with a digital multimeter placed in parallel with the circuit. Who is correct?

  • Technician A

  • Technician B

  • Both A and B

  • Neither A nor B

Correct answer: Technician A

Technician A is correct. Current can be measured with an inductive current clamp around the cable or wire. As current flows through a conductor, a magnetic field is created. Current clamps measure this magnetic field and give the user a measurement of current in amps.

Technician B is incorrect because digital multimeters must be placed in series to measure current. Placing the meter in series is likely to damage the meter and the circuit. The digital multimeter leads should be placed in the correct meter ports for this test. The maximum current measurement for each meter will be written on the face of the meter. 

131.

When inspecting a wheel cylinder, a technician should do all of the following EXCEPT:

  • Perform a magnetic particle inspection procedure

  • Press on the dust boots and look for brake fluid escaping

  • Open the bleeder valve and check for proper operation

  • Check to make sure the pistons move in their bore

Correct answer: Perform a magnetic particle inspection procedure

Magnetic particle inspection is not typically used by technicians on brake components, but is often used to test for cracks in cast iron engine components.

A small amount of brake fluid behind the dust boot is normal. If a technician presses on a dust boot and it causes brake fluid to flow out, the wheel cylinder should be rebuilt or replaced. Technicians should check for proper operation of the bleeder valves. Seized or clogged bleeder valves must be repaired or replaced before bleeding the brake system. Wheel cylinder pistons can be stuck in their bore and prevent proper operation of the drum brakes. 

132.

Where is the A/C condenser located?

  • In front of the radiator

  • Inside the dash near the blower

  • On the engine

  • Near the cowl

Correct answer: In front of the radiator

The condenser is typically located in front of the cooling system radiator. Inspecting the condenser for collision damage and damage from road debris is an important part of a visual inspection of the Heating, Ventilation, and Air Conditioning (HVAC) system. 

133.

Which of the following is the MOST LIKELY sign of a refrigerant leak?

  • Oil and dirt accumulation on air conditioning parts

  • A check engine light that is on

  • A seized compressor

  • An evaporative system diagnostic trouble code stored in the powertrain control module

Correct answer: Oil and dirt accumulation on air conditioning parts

Air conditioning refrigerant is mixed with lubricating oil as it circulates in the system. If a leak exists in the system, refrigerant and oil will escape and the oil will remain near the site of the leak. As oil leaks from the system, dirt will stick to the oil and provide a sign to the technician performing a visual inspection.

A check engine light will not illuminate when refrigerant leaks from the system. A seized compressor is usually not related to a refrigerant leak. Evaporative diagnostic trouble codes are related to the fuel evaporative emissions system. 

134.

Two technicians are observing the operation of the warning lamps on a vehicle as the engine is started. Technician A says the oil pressure warning lamp should be off at all times, unless a problem exists with engine oil pressure. Technician B says the brake warning lamp should illuminate as the ignition switch is moved to the "on" position. Who is correct?

  • Technician B

  • Technician A

  • Both A and B

  • Neither A nor B

Correct answer: Technician B

Technician B is correct because all warning lamps should illuminate at some point during engine start-up. The warning lights should turn off after engine start-up unless a problem exists in the related system. This is called a "prove out" sequence and it lets the driver know the warning lamps and associated circuitry are operating as designed.

Technician A is incorrect because the engine oil pressure warning lamp should illuminate when the ignition is turned on and then turn off within one second of engine start-up. If the oil pressure lamp does not illuminate when the ignition is turned on, it is an indication of a fault in the circuit. Observing warning lamp operation during engine start-up is an important, yet often overlooked, step in the diagnostic process. 

135.

Technician A states that all thermostats should have a rubber gasket to seal the thermostat housing. Technician B says a thermostat that is stuck closed will cause engine overheating. Who is correct?

  • Technician B

  • Technician A

  • Both A and B

  • Neither A nor B

Correct answer: Technician B

Technician B is correct because the thermostat that is stuck closed will prevent the circulation of coolant to the radiator and will cause overheating.

Technician A is incorrect because many engines have a flat thermostat housing gasket made of paper or textile fibers. Many modern thermostats have a rubber seal that fits on the thermostat prior to installation.

136.

Which of the following is NOT a method of draining the differential fluid from an axle housing on a rear-wheel drive vehicle?

  • Remove the vent hose from the axle housing

  • Remove the differential cover

  • Remove the drain plug

  • Use a suction pump

Correct answer: Remove the vent hose from the axle housing

The vent hose is located on the top of the axle housing and is not a suitable location for draining the differential fluid. The vent hose should not be restricted in any way and should always be open to the atmosphere.

Some axle housings have a cover that is secured by bolts that can be removed to drain the fluid, while others have a drain plug on the bottom. Some technicians elect to use a suction pump to remove the axle housing fluid through the fill hole. 

137.

Which of the following is NOT used to assist in aiming headlights?

  • Thumbscrews that are accessible while driving

  • Headlights that aim automatically

  • Headlights with integral bubble levels

  • Headlight aiming tools

Correct answer: Thumbscrews that are accessible while driving

Headlights are not aimed or adjusted by turning thumbscrews while driving. This would require mechanical linkage between the headlights and the thumbscrews.

Smart headlights use a module and sensors to automatically adjust the direction and intensity of light being projected. Many headlights have a built-in bubble type level to assist the driver or technician in aiming the headlights. Headlight aiming tools are used to help the technician aim the headlights correctly. This tool is like a target several feet in front of the automobile that shows the projection of the headlights. 

138.

Two technicians are discussing methods and procedures for checking the fluid level on an automatic transmission. Technician A says automatic transmissions that are not equipped with dipsticks often have a transmission fluid check bolt located at the bottom of the transmission. Technician B says the vehicle should have the driver's side elevated slightly to check transmission fluid level. Who is correct?

  • Technician A

  • Technician B

  • Both A and B

  • Neither A nor B

Correct answer: Technician A

Technician A is correct because many modern automatic transmissions have a transmission fluid check bolt or plug that can be removed from the transmission pan or the lower part of the transmission case to check the fluid level. In many cases, the removal of the check bolt will allow a small stream of fluid to pour out if the transmission fluid level is correct. Transmission fluid will not pour out of the check bolt hole if the transmission fluid level is too low and will spill out at an excessive rate if the fluid level is too high. The fluid of all modern automatic transmissions must be at a specified temperature before checking the level. The specified temperature varies with the vehicle manufacturer.

Technician B is incorrect because automobiles should be on a level surface before checking the automatic transmission fluid level.

139.

Technician A says many transfer cases are controlled by a module. Technician B says diagnostic trouble codes specific to the transfer case can be retrieved with a scan tool. Who is correct?

  • Both A and B 

  • Technician B

  • Neither A nor B

  • Technician A

Correct answer: Both A and B

Technician A is correct because most modern transfer cases are controlled electronically. Technician B is also correct because modules that control modern electronically controlled transfer cases will store fault codes when malfunctioning. These codes can be retrieved by using a scan tool. Some modules can display codes on an in-dash message center without the use of a scan tool.

140.

A technician is inspecting the rear suspension on a truck equipped with leaf springs. A clunking noise is heard from the rear as the truck goes over a bump. Which of the following would be the LEAST LIKELY cause?

  • A damaged strut

  • A broken spring

  • A damaged shackle

  • A loose shock absorber

Correct answer: A damaged strut

A damaged strut is the least likely cause of a clunking noise from the rear of a vehicle equipped with leaf springs. Leaf spring suspensions do not incorporate struts.

Shackles and shock absorbers are part of a leaf spring suspension and they are likely to make a clunking noise when damaged.

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