T1 ASE Assessment Exam1 with Questions and Answers
Latest Update 2025
Which of the following is least likely to cause frame buckle?
Uneven weight distribution
Using the truck for a purpose other than its intended design
Fire
Collision - Correct Answer-Uneven weight distribution
Battery disconnect voltage is typically around how many volts?
10.4 volts
8.5 volts
12.2 volts
9.6 - Correct Answer-10.4 volts
A starter current draw test is being performed. Technician A says low current draw may be
caused by excessive resistance in the starter circuit. Technician B says high current draw
may be caused by an internal engine problem. Who is correct?
Both A and B
Technician A
Technician B
Neither A nor B - Correct Answer-Both A and B
The primary function of the EGR system is to reduce what?
NOx
CO
HC
,CO2 - Correct Answer-NOx
A growling noise is heard when the A/C compressor is disengaged. Which of the following
is the most likely cause?
Loose clutch hub
Dry blower motor bearings
Worn compressor pulley bearing
Worn internal compressor bearings - Correct Answer-Worn compressor pulley bearing
The steering angle sensor must be calibrated in all of the following situations except:
When making repairs to the steering linkage
During wheel balance and rotation
When replacing the steering wheel
When performing a wheel alignment - Correct Answer-During wheel balance and rotation
Technician A says flat tappet lifters require a break-in period. Technician B says flat tappet
lifters should be checked for bleed-down using a special tool. Who is correct?
Technician A
Technician B
Both A and B
Neither A nor B - Correct Answer-Technician A
What color exhaust smoke indicates a potential internal coolant leak?
Blue
Gray
Black
White - Correct Answer-White
,Most transmissions regulate pressure at approximately:
60 psi
80 psi
30 psi
70 psi - Correct Answer-60 psi
What type of sensor is an output shaft speed sensor?
Inductive pulse
Transducer
Reed switch
Hall effect - Correct Answer-Inductive pulse
Reed Switch - Correct Answer-A reed switch is an electromagnetic switch used to control
the flow of electricity in a circuit.
Transducer - Correct Answer-Device that converts one form of energy to another
Inductive pulse - Correct Answer-is a device that uses the principle of electromagnetic
induction to detect or measure objects.
Technician A says a slight exhaust backpressure is normal and should not cause a
problem. Technician B says restrictions in the exhaust system cause exhaust
backpressure. Who is right?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A or B - Correct Answer-C. Both A and B
, The correct answer is C, both technicians are right. Different sized orifices and pipes in the
exhaust system will create an acceptable amount of exhaust backpressure. Excessive
restrictions, such as collapsed pipes, obstructions, incorrect components, or excessive
carbon buildup can cause too much backpressure.
Technician A says to perform a compression test on a warm engine. Technician B says an
engine with low cylinder leakage readings could be OK as long as the readings are the
same or similar for each cylinder. Who is right?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A or B - Correct Answer-C. Both A and B
The correct answer is C, both technicians are right. The reasoning behind testing a warm
engine is that metal expands when it gets hot. Therefore, a warm engine will give you a true
reading of how the engine performs when it is at operating temperature. If all the cylinders
are low but give the same or similar readings during a cylinder leakage test, it could
possibly just mean the engine has high-mileage with extended wear.
Technician A says maintenance-free batteries have a built-in hydrometer that 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?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A or B - Correct Answer-D. Neither A or B
The correct answer is D, neither technician is right. The built-in hydrometer should not be
the only gauge by which battery condition is measured, as this hydrometer measures the
specific gravity of only one cell. Its function is to alert a technician that there may be a
potential problem with the battery. Always check the maintenance-free battery state of
charge using a DMM.
Latest Update 2025
Which of the following is least likely to cause frame buckle?
Uneven weight distribution
Using the truck for a purpose other than its intended design
Fire
Collision - Correct Answer-Uneven weight distribution
Battery disconnect voltage is typically around how many volts?
10.4 volts
8.5 volts
12.2 volts
9.6 - Correct Answer-10.4 volts
A starter current draw test is being performed. Technician A says low current draw may be
caused by excessive resistance in the starter circuit. Technician B says high current draw
may be caused by an internal engine problem. Who is correct?
Both A and B
Technician A
Technician B
Neither A nor B - Correct Answer-Both A and B
The primary function of the EGR system is to reduce what?
NOx
CO
HC
,CO2 - Correct Answer-NOx
A growling noise is heard when the A/C compressor is disengaged. Which of the following
is the most likely cause?
Loose clutch hub
Dry blower motor bearings
Worn compressor pulley bearing
Worn internal compressor bearings - Correct Answer-Worn compressor pulley bearing
The steering angle sensor must be calibrated in all of the following situations except:
When making repairs to the steering linkage
During wheel balance and rotation
When replacing the steering wheel
When performing a wheel alignment - Correct Answer-During wheel balance and rotation
Technician A says flat tappet lifters require a break-in period. Technician B says flat tappet
lifters should be checked for bleed-down using a special tool. Who is correct?
Technician A
Technician B
Both A and B
Neither A nor B - Correct Answer-Technician A
What color exhaust smoke indicates a potential internal coolant leak?
Blue
Gray
Black
White - Correct Answer-White
,Most transmissions regulate pressure at approximately:
60 psi
80 psi
30 psi
70 psi - Correct Answer-60 psi
What type of sensor is an output shaft speed sensor?
Inductive pulse
Transducer
Reed switch
Hall effect - Correct Answer-Inductive pulse
Reed Switch - Correct Answer-A reed switch is an electromagnetic switch used to control
the flow of electricity in a circuit.
Transducer - Correct Answer-Device that converts one form of energy to another
Inductive pulse - Correct Answer-is a device that uses the principle of electromagnetic
induction to detect or measure objects.
Technician A says a slight exhaust backpressure is normal and should not cause a
problem. Technician B says restrictions in the exhaust system cause exhaust
backpressure. Who is right?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A or B - Correct Answer-C. Both A and B
, The correct answer is C, both technicians are right. Different sized orifices and pipes in the
exhaust system will create an acceptable amount of exhaust backpressure. Excessive
restrictions, such as collapsed pipes, obstructions, incorrect components, or excessive
carbon buildup can cause too much backpressure.
Technician A says to perform a compression test on a warm engine. Technician B says an
engine with low cylinder leakage readings could be OK as long as the readings are the
same or similar for each cylinder. Who is right?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A or B - Correct Answer-C. Both A and B
The correct answer is C, both technicians are right. The reasoning behind testing a warm
engine is that metal expands when it gets hot. Therefore, a warm engine will give you a true
reading of how the engine performs when it is at operating temperature. If all the cylinders
are low but give the same or similar readings during a cylinder leakage test, it could
possibly just mean the engine has high-mileage with extended wear.
Technician A says maintenance-free batteries have a built-in hydrometer that 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?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A or B - Correct Answer-D. Neither A or B
The correct answer is D, neither technician is right. The built-in hydrometer should not be
the only gauge by which battery condition is measured, as this hydrometer measures the
specific gravity of only one cell. Its function is to alert a technician that there may be a
potential problem with the battery. Always check the maintenance-free battery state of
charge using a DMM.
