ASE A1 Engine Repair Practice Test
1. An engine gradually overheats at cruising speeds but returns to normal at idle. Both of the engine's electric cooling fans are functioning correctly. Which of the following is MOST likely causing this condition?
- A. A restriction in the radiator.
- B. A stuck closed fan relay.
- C. A faulty radiator cap.
- D. A leak in the cooling system.
2. During a cylinder leakage test, the technician hears a hissing sound at the tailpipe. This sound is caused by:
- A. A leaking head gasket.
- B. A burned exhaust valve.
- C. Worn piston rings.
- D. A bent intake valve.
3. A faulty ECT sensor results in all of the following EXCEPT:
- A. A rich air-fuel ratio.
- B. An inoperative torque converter clutch.
- C. Blue-gray exhaust emitting from the tailpipe.
- D. An inoperative engine cooling fan.
4. A longitudinal engine makes a loud, whirling noise that gets louder when the engine is revved. Which of the following is causing this condition?
- A. A faulty viscous fan clutch.
- B. A worn accessory belt.
- C. A weak electric cooling fan motor.
- D. A cracked fan blade.
5. An vehicle has black-colored exhaust and a lack of power when accelerating. Technician A says a rich air-fuel ratio may have clogged the catalytic converter. Technician B says to use a back pressure tester to test for a restriction in the exhaust system. Who is correct?
- A. Technician A
- B. Technician B
- C. Both A and B
- D. Neither A or B