ASE A1 Engine Repair Practice Test
51. A wet compression test is being performed on a four cylinder engine. The number two cylinder's compression is below specifications and remains the same after injecting oil. This result indicates:
- A. Worn piston rings.
- B. A faulty valve.
- C. A hole in the piston.
- D. Excessive carbon buildup on the piston's dome.
52. A vehicle has blue colored exhaust. Technician A says this may be caused by weak piston rings. Technician B says this may be caused by a leaking fuel injector. Who is correct?
- A. Technician A
- B. Technician B
- C. Both A and B
- D. Neither A or B
53. Technician A says to remove the ridge on the engine block before removing the pistons. Technician B says a block's ridge will damage the new piston rings during installation. Who is correct?
- A. Technician A
- B. Technician B
- C. Both A and B
- D. Neither A or B
54. A vehicle briefly blows blue/gray smoke from the tailpipe when it's first started in the morning. The MOST likely cause of this condition is a:
- A. Worn piston ring.
- B. Lean fuel condition.
- C. Leaking fuel injector.
- D. Leaking valve seal.
55. Two technicians are discussing an engine with a collapsed radiator hose. Technician A says this is caused by a faulty radiator cap. Technician B says this is caused by insufficient coolant level. Who is correct?
- A. Technician A
- B. Technician B
- C. Both A and B
- D. Neither A or B
