ASE G1

LED bulbs can remain effective for up to how long depending on the size of the bulb and the conditions to which the bulb is exposed?

15000 hours

A technician is checking resistance in an engine's spark plug wires using an ohmmeter. A general rule is to replace a wire if resistance is over:

30,000 ohms

A vehicle suspension system is being checked for radial and axial tolerances. Technician A says the ball joints should be checked. Technician B says the idler arm should be checked. Who is right?

A

All of the following are procedures for removing air from a hydraulic system EXCEPT: A. bench bleeding B. power bleeding C. manual bleeding D. vacuum bleeding

A

All of these could cause tire wear if not within manufacturer's specifications EXCEPT: A. Caster B. wheel balance C. toe-in D. Camber

A

A vehicle with power assist brakes has a hard brake pedal. What is the most likely cause?

A faulty brake booster will result in a hard brake pedal.

A front wheel drive vehicle has a clacking noise that only occurs while cornering. The technician suspects a faulty front axle. What is most likely the cause?

A faulty or worn outer CV Joint makes its most noise while cornering.

The warning light on a vehicle with an anti-lock brake system lights when the vehicle is started. When the vehicle is moving, the light stays on. Which of the following could be the cause? A. mis-adjusted wheel sensor B. bad air release solenoid C. blown fail-safe monitor fuse D. bad warning light relay

A.

A technician measures several spots around a brake rotor with an outside micrometer. Technician A says the technician is checking the rotor for thickness variation. Technician B says the technician is checking the rotor for lateral runout. Who is correct?

Answer A is correct. Check the brake rotor in several different spots around the rotor to check for rotor thickness variation. Most minimum specifications are stamped inside the rotor.

A hydroboost brake system has reduced braking performance. Technician A says to check the power steering system. Technician B says to check the vacuum check valve. Who is correct?

Answer A is correct. The power steering pump produces pressure for the Hydroboost unit.

A rear wheel drive vehicle has a loud clunk when the transmission is placed into gear and a vibration that increases with vehicle speed. Technician A says this is caused by loose universal joints. Technician B says this is caused by an unbalanced driveshaft. Who is correct?

Answer A is correct. U-joints allow the driveshaft to provide torque to the rear wheels at different angles. Loose and worn U-joints will make a clunking noise when the transmission is placed into gear. They also cause noise and vibration that increases with vehicle speed.

A vehicle pulls to the left only while braking. Technician A says this could be a restricted left front brake line. Technician B says this could be a frozen right front caliper. Who is correct?

Answer B is correct. A frozen RF caliper will cause the vehicle to pull to the left when braking.

While performing an oil change the technician notices a red colored fluid leaking between the transmission and the engine. Technician A says this is caused by a leaking rear main seal. Technician B says this is caused by a leaking transmission pump seal.

Answer B is correct. A leaking oil pump seal will result in automatic transmission fluid leaking between the engine and transmission bell housing. Transmission fluid is red and oil is tan or brown colored.

Engine mounts were recently replaced on a front wheel drive vehicle with independent suspension. The vehicle now has a steady pull to the left at all speeds. Technician A says this is most likely caused by loose motor mounts. Technician B says this is most likely caused by a misaligned engine cradle. Who is correct?

Answer B is correct. A misaligned engine cradle will affect alignment angles resulting in pull.

Two technicians are discussing a ballooned oil filter. What is the most likely cause of this condition: A Stuck open oil pressure relief valve. B Stuck closed oil pressure relief valve. C Stuck open oil filter bypass valve. D Contaminated oil.

Answer B is correct. A stuck closed oil pressure relief valve could cause high oil pressure and a ballooned oil filter.

The headlights get brighter as the engine is revved and RPM's increase. Technician A says this is caused by a high capacity battery. Technician B says this is caused by a faulty voltage regulator. Who is correct?

Answer B is correct. At the heart of the charging system is the alternator. If the alternator outputs excessive or high charging voltage check voltage regulation, electrical components and electronics will be affected.

A technician is unable to balance a tire on a vehicle that vibrates at speeds above 35 mph. Technician A says to continue adding weights around the rim up to 20 ounces. Technician B says to dismount the tire from the rim and inspect the inside for liquid or debris. Who is correct?

Answer B is correct. If liquid is suspected inside of a wheel, dismount the tire and inspect inside. Remember TPMS sensors can become clogged and malfunction, resulting in a TPMS warning light.

A vehicle with a power rack and pinion steering system is binding only while cornering. Which of these are least-likely to cause this condition. A Strut mount bearing. B Worn rack bushings. C Worn rack and pinion gear. D Lower ball joint.

Answer B is correct. Worn rack bushings cause a vehicle to wander. Notice the other three options cause binding during turns.

All the lights in a brake light circuit illuminate except one. The most likely cause is: A an open in the brake switch. B a closed brake switch. C a burned bulb. D excessive resistance in the circuit.

Answer C is correct. A single bulb or it's associated socket is most likely at fault. In a brake light or parallel circuit one bulb can burn out while the others are unaffected.

A technician removes and replaces a worn lower radiator hose on a four cylinder engine. The vehicle overheats after the technician has replaced the hose and added coolant. Which of these is most likely the cause of this condition? A A faulty ECT sensor. B A stuck open thermostat. C An air pocket in the system. D Electrolysis.

Answer C is correct. An air pocket has likely formed. Water pump cavitation or any air pockets will cause this condition.

A vehicle's air conditioner blows cold air while driving at normal speeds, but warm while sitting at stop lights. The least-likely cause of this condition is: A an overheating engine. B a weak electric fan motor. C a frozen expansion valve. D debris in the condenser fins.

Answer C is correct. This is a least likely type question. Once the expansion valve freezes, the A/C would have poor performance at all speeds.

The TPMS warning light remains illuminated on a direct tire pressure monitoring system even after driving the vehicle several miles. The least-likely cause of this condition is: A a faulty TPMS sensor. B a weak TPMS sensor battery. C low air pressure in the spare tire. D a faulty wheel speed sensor.

Answer D is correct. A faulty wheel speed sensor will affect an indirect TPMS system. This is the least likely answer, a direct TPMS uses sensors placed inside of the wheel to sense air pressure.

A vehicle blows blue/gray smoke from the tailpipe only when first started in the morning. The most likely cause of this condition is: A Worn piston rings. B Lean fuel condition. C Leaking fuel injector. D Leaking valve seal.

Answer D is correct. A leaking valve seal will cause oil to leak into the cylinder's chamber over time, usually overnight resulting in blue/gray smoke at first start.

A vehicle's right front wheel has a growling noise that increases with vehicle speed. The most likely cause is: A Excessive rotor lateral run out. B Warped rear brake drums. C Worn CV-Joint. D Worn wheel bearing.

Answer D is correct. A worn out wheel bearing will cause a growl that increases with vehicle speed.

The brake fluid in an ABS brake system has become aerated causing a spongy pedal. Which of these DOT brake fluids are most-likely to cause this condition. A Dot 2 B Dot 3 C Dot 4 D Dot 5

Answer D is correct. Silicon based fluids like DOT 5 can become aerated in an ABS system.

Two technicians are discussing the evaporator's function in an automotive air conditioning system. All of these are true about the evaporator except:. A It removes humidity from the air. B Refrigerant flows from the bottom to the top. C Refrigerant enters the evaporator as a liquid. D The refrigerant changes from a vapor to a liquid as it receives heat from the cabin air.

Answer D. The refrigerant converts from a liquid to a vapor. This is because it boils as it receives heat from the cabin air. Refrigerant has a very low boiling point.

Technician A says that all vehicles with strut-type front suspension require that the strut is removed to replace the front coil springs. Technician B says that the coil spring should be compressed before removal from an SLA front suspension. Who is right?

B

A vehicle w/ hydraulic brakes has been diagnosed with contaminated brake fluid. Of the following, what would be the proper procedure in the repair process? A. Repair the system and manually bleed with fresh brake fluid. B. Repair the system and flush with fresh brake fluid C. Repair the system and top-off with fresh brake fluid. D. None of the above

B.

A vehicle has a noise coming from the power steering pump. Technician A says that a loose belt could be the cause. Technician B says that air in the system could be the cause. Who is right?

Both

A faulty thermostat is being replaced. Technician A says a stuck open thermostat will affect engine performance. Technician B says the thermostat controls the engine's operating temperature. Who is correct?

Both technicians are correct.

A technician scans and receives a code for a faulty in the MAF sensor circuit. Technician A says this could be caused by a loose wire or an intermittent open. Technician B says this could be caused by a faulty MAF sensor. Who is correct?

Both technicians are correct.

Technician A says a stuck open PCV valve will cause a lean fuel condition. Technician B says the PCV system removes blowby gases from the crankcase. Who is correct?

Both technicians are correct.

The engine of a vehicle will start, but is slow cranking. Technician A says there may be resistance in the starter circuit. Technician B says to perform a voltage drop test to test for excessive resistance in the starter circuit. Who is correct?

Both technicians are correct.

The serpentine accessory drive belt of an engine squeaks but appears to be in good condition. Technician A says this could be caused by a faulty idler bearing. Technician B says to check the belt with a belt gauge.

Both technicians are correct.

A front wheel drive vehicle with an automatic transaxle has excessive vibration. Technician A says that the vibration could be caused by worn engine/transaxle mounts. Technician B says that the vibration could be caused by a misaligned engine/transaxle subframe. Who is right?

Both techs

A horn is inoperative. Tech A says in order to repair the horn switch; the Supplemental Restraint System should be disabled. Tech B says to check for voltage at the relay. Who is right?

Both techs

A vehicle has experienced a charging problem. A tech inspected the charging system, found loose alternator mounting bolts, and tightened them. Afterwards, the vehicle performed OK. Tech A says the problem might have been a slipping belt. Tech B says the problem might have been poor grounding of the alternator. Who is right?

Both techs

Tech A says a Digital Graphing Multimeter can be used to view electronic wave forms. Tech B says GMMs can be used to view vehicle-specifice information displayed on screen. Who is right?

Both techs

Tech A says that if a wire is getting too hot, it is a sign of higher-than-normal current flowing through the wire. Tech B says the wire would heat up if some of the individual strands were broken inside the wire insulation. Who is right?

Both techs

Technician A says that if a wire is getting too hot, it's a sign of higher-than-normal current flowing through. Technician B says the wire would heat up if some of the individual strands are broken inside the wire insulation. Who is right?

Both techs

Technician A says that in an ignition system, the voltage supplied to the coil during starting is battery voltage. Technician B says the coil uses electromagnetic induction to create high voltage. Who is right?

Both techs

Technician A says the pressure differential switch activates a light on the dash warning the driver of a brake fluid pressure loss. Technician B says the combination valve activates a light on the dash warning the driver of a brake fluid pressure loss. Who is right?

Both techs

There is liquid leaking into the passenger compartment from the evaporator. Tech A says a leaking heater core could be the problem. Tech B says a clogged evaporator drain could be the problem. Who is right?

Both techs

A smeary film on the windshield is an indication of: A. evaporator core leak B. water valve leak C. heater core leak D. restricted drain hose

C

All of the following should be performed during a preliminary transmission inspection EXCEPT: A. check transmission fluid level B. visually check wiring and electrical connections C. check the condition of the filter D. check for fluid leaks

C

When replacing an integral hub/bearing assembly on a front wheel drive vehicle, all of the following must be removed EXCEPT: A. brake rotor B. brake caliper C. steering knuckle D. wheel

C

Which setting on a digital multimeter is used to check resistance? A. millivolt B. milliamp C. ohms D. voltage

C

A vehicle equipped with a MacPherson strut suspension is in the repair shop for new tires and an alignment. The technician noticed that the vehicle has some play in the lift-side inner tie-rod. What should the technician tell the customer? A. It is not a problem that will affect alignment. B. He can align the front end, but the tie-rod should be replaced soon C. The inner tie-rod needs to be replaced before an alignment can be performed D. He can set the vehicle alignment to compensate for the play in the inner tie-rod

C.

There is white exhaust smoke coming from the tailpipe of a vehicle well after the engine has been started. What is causing this condition?

Coolant burning in the combustion chamber. (White exhaust smoke is an indication that coolant is entering and burning in the combustion chamber.)

A rear wheel drive vehicle with a one-piece driveshaft has excessive driveshaft vibration during low speed acceleration. Which of the following is the MOST likely cause? A. binding U-joints B. excessive driveshaft runout C. driveshaft out of balance D. improper driveshaft angle

D

A windshield washer system is being checked. Fluid is spraying from the nozzle on the passenger side, but not on the driver's side. Of the following answers, what is the most likely cause? A. blown fuse B. no voltage at the pump C. low fluid level D. kinked or blocked hose

D

All of the following are true statements regarding tapered wheel bearings EXCEPT: A. the bearings and outer races must be replaced as an assembly B. they must be adjusted after installation C. Used bearings must be reinstalled on their original races D. They are mostly used on drive axles

D

All of the following can cause a problem in the Hydro-boost system EXCEPT: A. loose power steering pump belt B. leaking power steering hoses C. low power steering pump pressure D. leaking check valve

D

Cooling system pressure is maintained by the use of the: A. fan clutch B. water pump C. thermostat D. radiator cap

D

Starting system voltage drop tests are used to locate: A. low resistance B. shorts C. opens D. high resistance

D

Tire cupping is MOST likely caused by which of the following? A. worn shock absorbers B. wheel imbalance C. loose tie-rod ends D. all of the above

D

Voltage drop tests are used to locate: A. low resistance B. shorts C. opens D. high resistance

D

When testing computer-controlled systems, a Digital Multimeter should be used with an output impedance of at least: A. 10k ohms B. 100k ohms C. 1 Megaohm D. 10 Mega Ohm

D

Which of the following causes for ball joint replacement could also require steering knuckle replacement? A. torn dust boot B. worn ball and socket C. wear indicator below surface D. broken ball stud

D

A vehicle is leaking hydraulic fluid from a brake line. Technician A says a short splice can be used to repair the line. Technician B says if the line has not drained the master cylinder, the system does not need to be bled. Who is right?

Neither

Tech A says that when checking charging system voltage output, all electrical accessories should be on. Tech B says when checking charging system voltage output, the reading should be around 18 volts. Who is right?

Neither

Technician A says electrical connectors can be disconnected with the ignition switch ON, as long as the technician is using a ground strap. Technician B says when welding on a vehicle, the technician needs to use a static wrist strap. Who is right?

Neither

Technician A says maintenance-free batteries have a built-in hydrometer which can give you an indication of the battery's overall condition. Technician B says since a maintenance-free battery is sealed, it should be checked using a test light. Who is right?

Neither

Technician A says the thermostat maintains maximum engine operating temperature. Technician B says if the engine continuously runs hot, install a cooler thermostat. Who is right?

Neither

During an initial inspection a technician notices the automatic transmission fluid is a pink, milky consistancy. Technician A says this is caused by engine overheating. Technician B says the transmission could have been overfilled and the fluid has become aerated. Who is correct?

Neither technician is correct, the fluid ATF is contaminated with coolant.

A customer is complaining of insufficient air flow through the vents when the A/C is turned on. Tech A says that the problem could be a clogged cabin air filter. Tech B says the problem could be a short at the blower motor. Who is right?

Tech A

Tech A says that a test light is a good diagnostic tool for testing general lighting circuits and grounds, but should not be used on solid-state electronic circuits. Tech B says that a self-powered test light is a good diagnostic tool for testing voltage sources. Who is right?

Tech A

Technician A says that a vehicle with a TPMS can be identified by looking for a TPMS indicator on the instrument panel during the Key On Engine Off bulb check. Technician B says that all vehicles with TPMS have metal tire valve stems and this feature can be the identifier. Who is right?

Tech A

Technician A says that lubricant can be used to help seat a tire on a wheel rim. Technician B says that if necessary, it is OK to exceed the maximum tire pressure rating to seat the bead, as long as the pressure is reduced immediately afterward. Who is right?

Tech A

Technician A says that when pressure testing a radiator cap, a special adapter is needed. Technician B says the best way to check thermostat operation is while it is in the engine. Who is right?

Tech A

The driver of a vehicle with hydraulic brakes says the brake pedal is extremely hard when stopping. Technician A says the problem could be in the power assist system. Technician B says the problem is most likely a weak or broken brake shoe return spring. Who is right?

Tech A

A wiper motor is not operating. However, when the linkage is disconnected, the motor operates OK. Tech A says the problem could be a bad relay. tech B says the problem is MOST likely binding linkage. Who is right?

Tech B

Tech A says that pink colored transmission fluid is evidence of fluid aeration. Tech B says that pink colored transmission fluid is caused by coolant contamination. Who is right?

Tech B

Technician A says Diesel Exhaust Fluid (DEF) has no affect on vehicle performance. Technician B says a high-rate battery discharge test is the same as a load test. Who is right?

Tech B

Technician A says an indirect measurement Tire Pressure Monitoring System uses wheel speed sensors to measure tire pressure. Technician B says a direct measurement TPMS uses tire pressure sensor to measure tire pressure. Who is right?

Tech B

Technician A says that DOT 3 brake fluid has a higher boiling point than DOT 4 brake fluid. Tehcnician B says that DOT 5 brake fluid should not be used in a vehicle with ABS. Who is right?

Tech B

Technician A says that all power should be removed from a circuit before testing the circuit with an ammeter. Technician B says that all power should be removed from a circuit before testing the circuit with an ohmmeter. Who is right?

Tech B

The ball joints on a MacPherson strut suspension are being replaced. Technician A says that the coil spring compressor should be installed before separating the control arm and spindle. Technician B says that the wheel alignment should be checked after the ball joints have been replaced. Who is right?

Tech B

The driver notices a clear fluid dripping from the underside of his vehicle with the engine running and the A/C on. Tech A says this is refrigerant over flow. Tech B says the dripping will stop after the A/C system is shut off. Who is right?

Tech B

The tread of a tire is worn in the center and not on the outer shoulders. Technician A says this is caused by an improper wheel alignment angle. Technician B says this is caused by an over inflated tire. Who is correct?

Tech B is correct, An over inflated tire wears the center of the tire's tread and an under inflated tire wears the edges or "shoulders" of the tire.

A technician suspects that a faulty camshaft sensor causes a driveability complaint. The sensor is equipped with a three-wire connector. What type of sensor is this?

a Hall effect type

An engine is losing coolant, yet has no external leaks. Technician A says to run the engine and see if there is white smoke out of the exhaust. Technician B says to find out if the engine's emission system uses a catalytic converter before running the test above. Who is right?

both

Tech A says a noisy alternator could be caused by a bad diode. Tech B says a noisy alternator could be caused by a worn bearing. Who is right?

both