ASE T8-Preventative Maintenance Inspection (PMI)
Study Guide Questions With Answers.
What is the recommended interval for replacing the cabin air filter in a medium/heavy duty
truck? - Correct answer-Every 12,000 miles
What is the recommended interval for replacing the engine oil and filter in a medium/heavy
duty truck? - Correct answer-Every 15,000-20,000 miles
What is the recommended interval for checking the coolant level in a medium/heavy duty
truck? - Correct answer-Everyday
What should you do if you find any loose or damaged components during a preventative
maintenance inspection? - Correct answer-Tighten or repair the components
immediately.
What is the recommended interval for replacing the fuel filter in a medium/heavy duty
truck? - Correct answer-Every 20,000 to 30,000 miles
Which of these is the minimum tire tread depth permitted by federal DOT standards on all
steer axle tires on trucks, tractors, or buses? - Correct answer-4/32 in.
Technician A says that the low air brake pressure warning lamp should be lit when the
supply system pressure is below 60 psi. Technician B says that the parking brakes should
automatically apply when the supply system air pressure falls below 45 psi. Who is right? -
Correct answer-Both A and B
The driver of a tractor/trailer reports that the engine's fan hits the shroud when
accelerating under a load. The cause could be: - Correct answer-A broken engine mount
A drive axle lubricant is a milky color. The cause could be: - Correct answer-Water
contamination
When pressure testing a cooling system, the technician should apply - Correct answer-the
amount of pressure listed on the radiator cap.
, When performing a battery load test on a multiple battery vehicle: - Correct answer-Isolate
the batteries from each other
A zero reading on an air restriction dash gauge could be caused by any of these EXCEPT:
(A) a bad restriction gauge. (B) a plugged air filter. (C) an opening in the intake system. (D)
a torn air filter - Correct answer-D
What is the recommended interval for replacing the air filter in a medium/heavy duty
truck? - Correct answer-Every 15,000-30,000 miles
What is the recommended interval for replacing the transmission fluid in a medium/heavy
duty truck? - Correct answer-Every 90,000 miles
What should you check when inspecting the engine oil filler cap? - Correct answer-The
presence of any sludge or debris
What is the recommended interval for greasing the steering and suspension components
in a medium/heavy duty truck? - Correct answer-Every 3,000 miles
What is the best way to check for leaks in the cooling system? - Correct answer-
Pressurize the cooling system and inspect for any leaks
What is the proper way to inspect the air brake system? - Correct answer-Perform a brake
system leak test and check the operation of all air brake components
What should you check when inspecting the engine mounts? - Correct answer-The
condition of the mounts and the bolts that secure them in place
What should you check when inspecting the fifth wheel? - Correct answer-The condition
of the jaws, the locking mechanism, and the safety latch
What are the signs of a bad alternator? - Correct answer-Dim headlights, warning light on
the dash, low or dead batteries
What is the recommended interval for inspecting the brake pads and shoes on a
medium/heavy duty truck? - Correct answer-Every 6,000 miles
Study Guide Questions With Answers.
What is the recommended interval for replacing the cabin air filter in a medium/heavy duty
truck? - Correct answer-Every 12,000 miles
What is the recommended interval for replacing the engine oil and filter in a medium/heavy
duty truck? - Correct answer-Every 15,000-20,000 miles
What is the recommended interval for checking the coolant level in a medium/heavy duty
truck? - Correct answer-Everyday
What should you do if you find any loose or damaged components during a preventative
maintenance inspection? - Correct answer-Tighten or repair the components
immediately.
What is the recommended interval for replacing the fuel filter in a medium/heavy duty
truck? - Correct answer-Every 20,000 to 30,000 miles
Which of these is the minimum tire tread depth permitted by federal DOT standards on all
steer axle tires on trucks, tractors, or buses? - Correct answer-4/32 in.
Technician A says that the low air brake pressure warning lamp should be lit when the
supply system pressure is below 60 psi. Technician B says that the parking brakes should
automatically apply when the supply system air pressure falls below 45 psi. Who is right? -
Correct answer-Both A and B
The driver of a tractor/trailer reports that the engine's fan hits the shroud when
accelerating under a load. The cause could be: - Correct answer-A broken engine mount
A drive axle lubricant is a milky color. The cause could be: - Correct answer-Water
contamination
When pressure testing a cooling system, the technician should apply - Correct answer-the
amount of pressure listed on the radiator cap.
, When performing a battery load test on a multiple battery vehicle: - Correct answer-Isolate
the batteries from each other
A zero reading on an air restriction dash gauge could be caused by any of these EXCEPT:
(A) a bad restriction gauge. (B) a plugged air filter. (C) an opening in the intake system. (D)
a torn air filter - Correct answer-D
What is the recommended interval for replacing the air filter in a medium/heavy duty
truck? - Correct answer-Every 15,000-30,000 miles
What is the recommended interval for replacing the transmission fluid in a medium/heavy
duty truck? - Correct answer-Every 90,000 miles
What should you check when inspecting the engine oil filler cap? - Correct answer-The
presence of any sludge or debris
What is the recommended interval for greasing the steering and suspension components
in a medium/heavy duty truck? - Correct answer-Every 3,000 miles
What is the best way to check for leaks in the cooling system? - Correct answer-
Pressurize the cooling system and inspect for any leaks
What is the proper way to inspect the air brake system? - Correct answer-Perform a brake
system leak test and check the operation of all air brake components
What should you check when inspecting the engine mounts? - Correct answer-The
condition of the mounts and the bolts that secure them in place
What should you check when inspecting the fifth wheel? - Correct answer-The condition
of the jaws, the locking mechanism, and the safety latch
What are the signs of a bad alternator? - Correct answer-Dim headlights, warning light on
the dash, low or dead batteries
What is the recommended interval for inspecting the brake pads and shoes on a
medium/heavy duty truck? - Correct answer-Every 6,000 miles
