ASE MLR Certification Test questions and answers
2026\2027 A+ Grade
Both A and B
- correct answer Technician observes that the brake fluid level is at the "Min" mark in the master
cylinder reservoir. Tech A says that worn front pads could be the cause. Tech B says that a leak in the
brake hydraulic system could be the cause. Who is right?
A only
- correct answer The tires of a vehicle are being rotated and balanced. Tech A says that the wheel weight
retaining clips must be matched to the rim profile. Tech B says that directional tires are rotated in a
criss-cross pattern. Who is right?
Safely exit the building
- correct answer When a shop fire cannot be immediately contained, the best thing to do is warn others
in the area, and:
300 amps for 15 seconds
- correct answer A fully charged battery rated at 600 CCA, the ambient temperature is 70 degrees which
of these current and time periods should be used?
B only
- correct answer A vehicle's halogen headlamp bulbs are being replaced. Technician A says the glass part
of the bulb can only be handled with bare hands. Technician B says the headlamp may need to be
removed. Who is right?
0.728
- correct answer On a Metric Micrometer upper sleeve reading 5.0mm with lower sleeve reading
0.50mm and a thimble reading of 0.01mm what is the overall reading?
A only
- correct answer The fuel filter on a fuel-injected vehicle is being replaced. Tech A says the fuel pressure
, should be relieved before removing the filter. Tech B says that the arrow on the fuel filter should point
towards the fuel tank. Who is right?
The brake pedal feels low and spongy
- correct answer Which of these is an indication of air in the brake hydraulic system?
Anaerobic
- correct answer Which of these cures in the absence of air?
Fluid contaminated brake linings
- correct answer A grabbing brake condition can be caused by any of these EXCEPT:
Visually verify that the oil filter gasket is properly installed
- correct answer When performing an oil filter change on a vehicle with a spin on oil filter, the technician
must:
Voltage regulation
- correct answer A vehicle's battery prematurely fails. A charging system output test shows the
generator (alternator) is producing a constant 16.0 volts. This could indicate a failed:
Seal should be lubricated with transmission fluid
- correct answer A transmission equipped with a filter is being serviced. When installing the new filter,
the:
Both A and B
- correct answer While inspecting the rear axle wheel studs on a rear-wheel drive vehicle, the technician
observed that one stud is damaged. Technician A says that all the wheel studs on the hub assembly
should be replaced. Technician B says that the thread pitch and diameter of the replacement stud must
be the same as the original. Who is right?
Neither A nor B
- correct answer The three C's (concern, cause, and correction) are being reviewed on the repair order.
Technician A says that the customer's statement that the steering wheel shakes is the "correction".
Technician B says that a customer's statement about a puddle on the floor of the customer's garage is
the "cause".
2026\2027 A+ Grade
Both A and B
- correct answer Technician observes that the brake fluid level is at the "Min" mark in the master
cylinder reservoir. Tech A says that worn front pads could be the cause. Tech B says that a leak in the
brake hydraulic system could be the cause. Who is right?
A only
- correct answer The tires of a vehicle are being rotated and balanced. Tech A says that the wheel weight
retaining clips must be matched to the rim profile. Tech B says that directional tires are rotated in a
criss-cross pattern. Who is right?
Safely exit the building
- correct answer When a shop fire cannot be immediately contained, the best thing to do is warn others
in the area, and:
300 amps for 15 seconds
- correct answer A fully charged battery rated at 600 CCA, the ambient temperature is 70 degrees which
of these current and time periods should be used?
B only
- correct answer A vehicle's halogen headlamp bulbs are being replaced. Technician A says the glass part
of the bulb can only be handled with bare hands. Technician B says the headlamp may need to be
removed. Who is right?
0.728
- correct answer On a Metric Micrometer upper sleeve reading 5.0mm with lower sleeve reading
0.50mm and a thimble reading of 0.01mm what is the overall reading?
A only
- correct answer The fuel filter on a fuel-injected vehicle is being replaced. Tech A says the fuel pressure
, should be relieved before removing the filter. Tech B says that the arrow on the fuel filter should point
towards the fuel tank. Who is right?
The brake pedal feels low and spongy
- correct answer Which of these is an indication of air in the brake hydraulic system?
Anaerobic
- correct answer Which of these cures in the absence of air?
Fluid contaminated brake linings
- correct answer A grabbing brake condition can be caused by any of these EXCEPT:
Visually verify that the oil filter gasket is properly installed
- correct answer When performing an oil filter change on a vehicle with a spin on oil filter, the technician
must:
Voltage regulation
- correct answer A vehicle's battery prematurely fails. A charging system output test shows the
generator (alternator) is producing a constant 16.0 volts. This could indicate a failed:
Seal should be lubricated with transmission fluid
- correct answer A transmission equipped with a filter is being serviced. When installing the new filter,
the:
Both A and B
- correct answer While inspecting the rear axle wheel studs on a rear-wheel drive vehicle, the technician
observed that one stud is damaged. Technician A says that all the wheel studs on the hub assembly
should be replaced. Technician B says that the thread pitch and diameter of the replacement stud must
be the same as the original. Who is right?
Neither A nor B
- correct answer The three C's (concern, cause, and correction) are being reviewed on the repair order.
Technician A says that the customer's statement that the steering wheel shakes is the "correction".
Technician B says that a customer's statement about a puddle on the floor of the customer's garage is
the "cause".
