| A-1 Engine Repair Certification Practice Test | |
|---|---|
21. Two technicians are discussing engine sealants and form in place gaskets. Technician A says sealants such as RTV are aerobic. Technician B says some sensors may be damaged if an unapproved sealant is used. A. Technician A B. Technician B C. Both Technician A and B D. Neither Technician A or B |
26. An engine suffers from detonation. Technician A this may be caused from a defective EGR valve. Technician B says advanced ignition timing can cause this condition. Who is correct? A. Technician A B. Technician B C. Both Technician A and B D. Neither Technician A or B |
22. Which tool is least-likely to be used when measuring an engines main bearing bore: A. Inside micrometer B. Feeler gauge C. Telescoping gauge D. Dial bore gauge |
27. A technician is checking for piston ring groove clearance. The proper technique includes. A. The old ring and a feeler gauge B. The new ring and a feeler gauge C. Only a feeler gauge D. No feeler gauge is required |
23. A compression test is being performed on a vehicle. The #1 cylinder is 30lbs. lower than the rest. The pressure increases after injecting oil into the cylinder. Technician A says that excessive carbon buildup is the cause of this condition. Technician B says this test indicates one of the cylinders valves may be defective. Who is correct? A. Technician A B. Technician B C. Both Technician A and B D. Neither Technician A or B |
28. Two technicians are discussing a viscous fan. Technician A says this type of fan should be checked for leakage. Technician B says a defective relay may cause this type of fan to be inoperative. Who is correct? A. Technician A B. Technician B C. Both Technician A and B D. Neither Technician A or B |
24. Technician A says that connecting rods and the rod caps are matched and can not be mixed. Technician B says it may be necessary to mark these parts for reassembly. Who is correct? A. Technician A B. Technician B C. Both Technician A and B D. Neither Technician A or B |
29. An engines crankshaft seal is leaking fluid. Technician A says this may be caused by a defective serpentine belt tensioner. Technician B says this may be caused by a restricted PCV hose. Who is correct? A. Technician A B. Technician B C. Both Technician A and B D. Neither Technician A or B |
25. During a cylinder leakage test air bubbles appear coming from the radiator neck. Technician A says this may be caused by a leaking intake valve. Technician B says the engine may have a crack in the engine block. Who is correct? A. Technician A B. Technician B C. Both Technician A and B D. Neither Technician A or B |
30. A strong sulfur smell is coming from the tailpipe of a vehicle. The most-likely cause of this condition is: A. A lean fuel condition B. Leaking head gasket C. Worn piston rings D. A rich fuel condition |