ASE A2 Automatic Transmission/Transaxle
Exam With Actual Questions & Verified
Answers, Plus Explained Rationales/Expert
Verified For Guaranteed Pass 2026/Latest
Updated/Instant Download Pdf
1. A vehicle equipped with a torque converter is experiencing
slippage and poor acceleration. Which component is most likely
failing?
A) Transmission filter
B) Torque converter clutch
C) Drive shaft
D) Universal joint
B) Torque converter clutch
Rationale: A failing torque converter clutch can cause slippage
between the engine and transmission, leading to poor acceleration
and reduced power transfer.
2. Which transmission fluid color usually indicates oxidation or
overheating?
A) Red
B) Brown
C) Green
D) Blue
B) Brown
Rationale: Automatic transmission fluid should be red; brown or black
,fluid indicates oxidation or overheating, suggesting potential internal
damage.
3. What is the primary purpose of the governor in an automatic
transmission?
A) To control the torque converter
B) To provide vehicle speed input for shift timing
C) To lubricate the clutches
D) To adjust fluid pressure
B) To provide vehicle speed input for shift timing
Rationale: The governor senses vehicle speed and signals the
transmission to shift at appropriate speeds.
4. A transmission is harshly shifting into reverse. Which component
is most likely the cause?
A) Reverse clutch pack
B) Valve body
C) Differential
D) Torque converter
B) Valve body
Rationale: The valve body directs hydraulic pressure to the correct
clutch packs; a malfunction can cause harsh or delayed reverse
engagement.
5. What type of gear set is most commonly used in automatic
transmissions to provide multiple gear ratios?
A) Spur gear
B) Planetary gear set
C) Helical gear set
D) Bevel gear set
,B) Planetary gear set
Rationale: Planetary gear sets allow multiple gear ratios in a compact
design, making them ideal for automatic transmissions.
6. When diagnosing a slipping automatic transmission, the
technician should first check:
A) Drive shaft alignment
B) Fluid level and condition
C) Wheel bearings
D) Engine timing
B) Fluid level and condition
Rationale: Low or degraded fluid is the most common cause of
slipping; always check this before more invasive diagnostics.
7. What is the function of a clutch in an automatic transmission?
A) To vary engine speed
B) To engage or disengage gears
C) To transfer torque to the driveshaft
D) To control fluid pressure
B) To engage or disengage gears
Rationale: Clutches in an automatic transmission connect and
disconnect gear sets to provide different output ratios.
8. Which symptom indicates a failing transmission solenoid?
A) No engine start
B) Intermittent shifting problems
C) Brake pedal pulsation
D) Steering wheel vibration
B) Intermittent shifting problems
Rationale: Solenoids control hydraulic circuits in the valve body;
failure can cause delayed, harsh, or incorrect shifts.
, 9. How does a lock-up torque converter improve fuel efficiency?
A) By reducing engine RPM at cruising speed
B) By increasing fluid pressure
C) By changing gear ratios
D) By engaging the clutch intermittently
A) By reducing engine RPM at cruising speed
Rationale: Lock-up eliminates slip between the engine and
transmission at cruising speed, reducing wasted energy and improving
efficiency.
10. A transmission fluid leak is found at the pan gasket. What is
the correct repair?
A) Replace the pan and gasket
B) Replace the torque converter
C) Replace the valve body
D) Replace the drive shaft
A) Replace the pan and gasket
Rationale: Pan gasket leaks are typically repaired by removing the
pan, cleaning surfaces, and installing a new gasket.
11. Which sensor provides input to electronically controlled
transmissions for shift timing?
A) Throttle position sensor (TPS)
B) Vehicle speed sensor (VSS)
C) Mass airflow sensor (MAF)
D) Oxygen sensor (O2)
B) Vehicle speed sensor (VSS)
Rationale: The VSS monitors vehicle speed and provides data for shift
timing and transmission control in electronically controlled systems.
Exam With Actual Questions & Verified
Answers, Plus Explained Rationales/Expert
Verified For Guaranteed Pass 2026/Latest
Updated/Instant Download Pdf
1. A vehicle equipped with a torque converter is experiencing
slippage and poor acceleration. Which component is most likely
failing?
A) Transmission filter
B) Torque converter clutch
C) Drive shaft
D) Universal joint
B) Torque converter clutch
Rationale: A failing torque converter clutch can cause slippage
between the engine and transmission, leading to poor acceleration
and reduced power transfer.
2. Which transmission fluid color usually indicates oxidation or
overheating?
A) Red
B) Brown
C) Green
D) Blue
B) Brown
Rationale: Automatic transmission fluid should be red; brown or black
,fluid indicates oxidation or overheating, suggesting potential internal
damage.
3. What is the primary purpose of the governor in an automatic
transmission?
A) To control the torque converter
B) To provide vehicle speed input for shift timing
C) To lubricate the clutches
D) To adjust fluid pressure
B) To provide vehicle speed input for shift timing
Rationale: The governor senses vehicle speed and signals the
transmission to shift at appropriate speeds.
4. A transmission is harshly shifting into reverse. Which component
is most likely the cause?
A) Reverse clutch pack
B) Valve body
C) Differential
D) Torque converter
B) Valve body
Rationale: The valve body directs hydraulic pressure to the correct
clutch packs; a malfunction can cause harsh or delayed reverse
engagement.
5. What type of gear set is most commonly used in automatic
transmissions to provide multiple gear ratios?
A) Spur gear
B) Planetary gear set
C) Helical gear set
D) Bevel gear set
,B) Planetary gear set
Rationale: Planetary gear sets allow multiple gear ratios in a compact
design, making them ideal for automatic transmissions.
6. When diagnosing a slipping automatic transmission, the
technician should first check:
A) Drive shaft alignment
B) Fluid level and condition
C) Wheel bearings
D) Engine timing
B) Fluid level and condition
Rationale: Low or degraded fluid is the most common cause of
slipping; always check this before more invasive diagnostics.
7. What is the function of a clutch in an automatic transmission?
A) To vary engine speed
B) To engage or disengage gears
C) To transfer torque to the driveshaft
D) To control fluid pressure
B) To engage or disengage gears
Rationale: Clutches in an automatic transmission connect and
disconnect gear sets to provide different output ratios.
8. Which symptom indicates a failing transmission solenoid?
A) No engine start
B) Intermittent shifting problems
C) Brake pedal pulsation
D) Steering wheel vibration
B) Intermittent shifting problems
Rationale: Solenoids control hydraulic circuits in the valve body;
failure can cause delayed, harsh, or incorrect shifts.
, 9. How does a lock-up torque converter improve fuel efficiency?
A) By reducing engine RPM at cruising speed
B) By increasing fluid pressure
C) By changing gear ratios
D) By engaging the clutch intermittently
A) By reducing engine RPM at cruising speed
Rationale: Lock-up eliminates slip between the engine and
transmission at cruising speed, reducing wasted energy and improving
efficiency.
10. A transmission fluid leak is found at the pan gasket. What is
the correct repair?
A) Replace the pan and gasket
B) Replace the torque converter
C) Replace the valve body
D) Replace the drive shaft
A) Replace the pan and gasket
Rationale: Pan gasket leaks are typically repaired by removing the
pan, cleaning surfaces, and installing a new gasket.
11. Which sensor provides input to electronically controlled
transmissions for shift timing?
A) Throttle position sensor (TPS)
B) Vehicle speed sensor (VSS)
C) Mass airflow sensor (MAF)
D) Oxygen sensor (O2)
B) Vehicle speed sensor (VSS)
Rationale: The VSS monitors vehicle speed and provides data for shift
timing and transmission control in electronically controlled systems.
