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AUTO MECHANICS TEST 2026\2027 QUESTIONS
AND ANSWERS.
Which system uses a confined gas to cool the passenger area of
the vehicle?
A ASE
B EGR
C HVAC
D PCV - CORRECT ANSWER - C
In a hybrid vehicle, what keeps the high-voltage batteries from
overheating? A blower motor
B exhaust system
C radiator fan
D turbo - CORRECT ANSWER - A
There is plain water dripping on the passenger's feet in a vehicle,
which is the most likely cause?
A The condenser drain is plugged up.
B The evaporator drain is plugged up.
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C The heater core is stopped up.
D The radiator is stopped up. - CORRECT ANSWER - B
The A/C serpentine drive belt keeps jumping off its pulley
whenever the A/C is turned on. Which is the most likely cause?
A A pulley or bracket is misaligned.
B The belt is made of the wrong material. C The belt is
too small.
D The belt is too old. - CORRECT ANSWER - A
What is the name of the heating part that changes the airflow from
the foot area to the vent area?
A blend door
B bypass door
C compression door
D blower door - CORRECT ANSWER - A
Which air conditioner component is located directly in front of the
radiator on a vehicle?
A compressor
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B condenser
C dryer
D evaporator - CORRECT ANSWER - B
On a hybrid vehicle, which type of voltage powers the air
conditioner compressor?
A no voltage
B low voltage
C medium voltage
D high voltage - CORRECT ANSWER - D
An A/C "V" drive belt is being adjusted. The proper tension can be
determined by using a:
A protractor.
B ruler.
C scale.
D vernier caliper. - CORRECT ANSWER - B
If a vehicle has been run without the proper air filter, which part
would most likely be damaged?
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A camshaft
B fuel injector
C piston ring
D plug wire - CORRECT ANSWER - C
If a driver continues to ignore the dash warning message to refill a
diesel vehicle with diesel exhaust fluid (DEF), what will be the end
result?
A The engine will lock up.
B The engine will overheat.
C The tailpipe will overheat.
D The vehicle will be disabled. - CORRECT ANSWER - D
Extremely dirty air filters can cause:
A excessive engine airflow.
B improved fuel economy.
C longer engine life.
D poor engine performance. - CORRECT ANSWER - D
AUTO MECHANICS TEST 2026\2027 QUESTIONS
AND ANSWERS.
Which system uses a confined gas to cool the passenger area of
the vehicle?
A ASE
B EGR
C HVAC
D PCV - CORRECT ANSWER - C
In a hybrid vehicle, what keeps the high-voltage batteries from
overheating? A blower motor
B exhaust system
C radiator fan
D turbo - CORRECT ANSWER - A
There is plain water dripping on the passenger's feet in a vehicle,
which is the most likely cause?
A The condenser drain is plugged up.
B The evaporator drain is plugged up.
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C The heater core is stopped up.
D The radiator is stopped up. - CORRECT ANSWER - B
The A/C serpentine drive belt keeps jumping off its pulley
whenever the A/C is turned on. Which is the most likely cause?
A A pulley or bracket is misaligned.
B The belt is made of the wrong material. C The belt is
too small.
D The belt is too old. - CORRECT ANSWER - A
What is the name of the heating part that changes the airflow from
the foot area to the vent area?
A blend door
B bypass door
C compression door
D blower door - CORRECT ANSWER - A
Which air conditioner component is located directly in front of the
radiator on a vehicle?
A compressor
, Page | 3
B condenser
C dryer
D evaporator - CORRECT ANSWER - B
On a hybrid vehicle, which type of voltage powers the air
conditioner compressor?
A no voltage
B low voltage
C medium voltage
D high voltage - CORRECT ANSWER - D
An A/C "V" drive belt is being adjusted. The proper tension can be
determined by using a:
A protractor.
B ruler.
C scale.
D vernier caliper. - CORRECT ANSWER - B
If a vehicle has been run without the proper air filter, which part
would most likely be damaged?
, Page | 4
A camshaft
B fuel injector
C piston ring
D plug wire - CORRECT ANSWER - C
If a driver continues to ignore the dash warning message to refill a
diesel vehicle with diesel exhaust fluid (DEF), what will be the end
result?
A The engine will lock up.
B The engine will overheat.
C The tailpipe will overheat.
D The vehicle will be disabled. - CORRECT ANSWER - D
Extremely dirty air filters can cause:
A excessive engine airflow.
B improved fuel economy.
C longer engine life.
D poor engine performance. - CORRECT ANSWER - D
