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Automotive Maintenance & Light Repair Chapters Exam 2024
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Automotive Maintenance & Light Repair Chapters Exam 2024
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Automotive Maintenance & LightRepair Chapters Exam 2024
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? - -B
-Technician A says that oil should be squirted into all of the cylinders before
taking a compression test.
Technician B says that if the compression greatly increases when some oil is
squirted into the cylinders, it indicates defective or worn piston rings.
Which technician is correct? - -B
-During a cylinder leakage (leak-down) test, air is noticed coming out of the
oil fill opening.
Technician A says that the oil filter may be clogged.
Technician B says that the piston rings may be worn or defective. Which
technician is correct? - -B
-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? - -B
-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? -
-B
-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? - -B
-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? - -B
-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. - -B
-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? - -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? - -A
-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
-A halogen bulb is being replaced in a headlight system.
, Technician A says to handle the bulb at it's base during installation.
Technician B says to wear gloves or use a piece of paper when handling the
glass portion of these bulbs.
Who is correct? - -Both
-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
-Two techs are discussing suspension bushings.
Tech A says that replacing a control arm bushing requires a special tool.
Tech B says using high-preformance urethane bushings may cause excessive
noise to be transferred to the passenger compartment. Which tech is
correct? - -Both techs
-An engine is misfiring. A power balance test indicates that when the spark
to cylinder #4 is grounded, there is no change in the engine speed.
Technician A says that a burned valve is a possible cause.
Technician B says that a defective cylinder #4 injector or spark plug wire
could be the cause. Which technician is correct? - -The correct answer is C-
-Two technicians are discussing how to perform a road test to verify the
customer's concerns about noise from the engine.
Technician A says that the owner should drive and the technician ride along
to verify the problem.
Technician B says that the vehicle should be driven next to a building to
better hear engine noise as it bounces off the walls. Which technician is
correct? - -The correct answer is C
-A cylinder leakage (leak-down) test indicates 30% leakage, and air is heard
coming out of the air inlet.
Technician A says that this is a normal reading for a slightly worn engine.
Technician B says that one or more intake valves are defective. Which
technician is correct? - -The correct answer is B
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