ASE A1 Engine Repair Practice Test

21. Engine crack repair is being discussed. Technician A says metal pinning is an accepted method of cracked cylinder head repair. Technician B says metal pinning is an accepted method of cracked engine block repair. Who is correct?

  • A. Technician A
  • B. Technician B
  • C. Both A and B
  • D. Neither A or B

21.

Answer A is wrong. Both cylinder heads and engine blocks can be stitched.

Answer B is wrong. Both are acceptable repairs.

Answer C is correct. Metal pinning is an acceptable method for repairing a cracked cylinder head or an engine block.

Answer D is wrong. Both are accepted repairs.

22. Which of these is LEAST likely to cause low oil pressure in an engine.

  • A. A faulty oil pressure valve.
  • B. A worn crankshaft bearings.
  • C. A worn camshaft bearings.
  • D. Worn valve guides.

22.

Answer A is wrong. This is a least question. An open oil pressure valve will cause low oil pressure.

Answer B is wrong. This is a least question. Worn main crankshaft bearings will cause low oil pressure.

Answer C is wrong. This is a least question. Worn camshaft bearings will lower oil pressure.

Answer D is correct. This is the least likely. It is unlikely that a valve guide will lower oil pressure.

23. Technician A says valve spring installed height is measured from the outer edge of the valve spring retainer to the pocket in the cylinder head. Technician B says that too thin of a valve margin will not effect its operating temperature. Who is correct?

  • A. Technician A
  • B. Technician B
  • C. Both A and B
  • D. Neither A or B

23.

Answer A is correct. Valve spring installed height is measured from the outer edge of the valve spring retainer to the pocket in the cylinder head.

Answer B is wrong. If the margin of the valve is too thin, the valve will overheat and burn.

Answer C is wrong. Answer A is correct.

Answer D is wrong. Answer A is correct.

24. Technician A says that magnetic particle detection is an acceptable method to detect cracks in aluminum castings. Technician B says a special dye is used to detect cracks in aluminum castings. Who is correct?

  • A. Technician A
  • B. Technician B
  • C. Both A and B
  • D. Neither A or B

24.

Answer A is wrong. It is a non destructible way to inspect for cracks in iron.

Answer B is correct. A special dye is used to inspect for cracks in aluminum.

Answer C is wrong. Technician B is correct.

Answer D is wrong. Technician B is correct.

25. Technician A says that minor scoring on the surface of a flywheel can be removed. Technician B says if the transmission flexplate's ring gear shows excessive wear or cracking it must be replaced. Who is correct?

  • A. Technician A
  • B. Technician B
  • C. Both A and B
  • D. Neither A or B

25.

Answer A is wrong. Both Technicians are correct.

Answer B is wrong. Cracked flexplates are always replaced.

Answer C is correct. Scoring on the surface of a flywheel can be removed by resurfacing. The ring gear can be replaced making it reusable. A cracked flexplate is always replaced with a new one.

Answer D is wrong. Both Technicians are correct.