41.  Two technicians are discussing cylinder bore measurements. Technician A says the cylinders bore should be measured for out of round. Technician B says the cylinders bore should be measured and checked for taper. Who is correct?

A. Technician A

B. Technician B

C. Both Technician A and B

D. Neither Technician A or B

46.   Two technicians are discussing superchargers. Technician A says a supercharger is driven by the engines crankshaft. Technician B says a supercharger is driven by the engines exhaust flow. Who is correct?

A. Technician A

B. Technician B

C. Both Technician A and B

D. Neither Technician A or B

42.  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.
Who is correct?

A. Technician A

B. Technician B

C. Both Technician A and B

D. Neither Technician A or B

47.   A vehicles engine will not crank. Technician A says to check the starter and it's circuit first. Technician B says to check the voltage, capacity, and condition of the battery. Who is correct?

A. Technician A

B. Technician B

C. Both Technician A and B

D. Neither Technician A or B

43.   An engine has a noise that goes away as the engine warms and reaches operating temperature. Which of these is the most likely cause.

A. Loose main bolt.

B. Loose connecting rod bolt.

C. Piston to wall clearance.

D. Loose intake manifold.

48.   A vehicle vibrates only when placed in reverse. The most likely cause of this condition is:

A. Crossed ignition wires.

B. Faulty fuel injector.

C. Faulty balance shaft.

D. Faulty engine mount.

44.   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

49.   After replacing the water pump of the cooling system the vehicle is overheating. Which of these is the most likely cause.

A. An air pocket in the system.

B. Leaking head gasket.

C. Faulty replacement water pump.

D. The radiator.

45.   Technician A says faulty turbocharger bearings may result in a loss of engine oil. Technician B says a dirty turbocharger air filter may result in a loss of engine oil. Who is correct?

A. Technician A

B. Technician B

C. Both Technician A and B

D. Neither Technician A or B

50.   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