Question 1

An engine dynamometer may use devices to convert pressure and temperature signals into electronic signals. These devices are called ________.

Accepted Answer

A)  Transducers
B)  Reducers
C)  Reversers
D)  InvertersE) A) and C)
F) All of the above

Question 2

An engine block is being fitted with studs. Technician A says that the tightening torque in the installation instructions is for the stud and not the nut. Technician B says that if a thread locker is used, be sure to immediately install the main bearing caps before the compound cures to help avoid misalignment. Who is right?

Accepted Answer

A)  Technician A only
B)  Technician B only
C)  Both technicians A and B
D)  Neither technician A nor BE) None of the above
F) A) and B)

Question 3

Technician A says that the back of all engine bearings should be lubricated during assembly. Technician B says that the face of the main and rod bearings should be lubricated before final assembly. Who is right?

Accepted Answer

A)  Technician A only
B)  Technician B only
C)  Both technicians A and B
D)  Neither technician A nor BE) B) and C)
F) A) and C)

Question 4

Main bearings and rod bearings should be checked for proper oil clearance by precision measuring the crankshaft journals and inside diameter of bearings, or by using which of these?

Accepted Answer

A)  Plastigage material
B)  Steel ruler
C)  Rubber gauging material
D)  Vernier caliperE) A) and C)
F) A) and B)

Question 5

The cylinder head bolts should be tightened (torqued)  by which of these sequences?

Accepted Answer

A)  Starting at the front of the engine and torqueing bolts from front to rear
B)  Four outside bolts first, then from the center out
C)  From the outside bolts to the inside bolts
D)  From the inside bolts to the outside boltsE) None of the above
F) B) and C)

Question 6

Engine pre-oiling is recommended for which of these reasons?

Accepted Answer

A)  Helps the rebuilt engine develop power
B)  Fills the oil passages with oil prior to initial start-up
C)  Both A and B
D)  Neither A nor BE) A) and D)
F) All of the above

Question 7

A coating often used to keep an engine from rusting during assembly is called ________.

Accepted Answer

A)  Penetrating oil
B)  Engine oil
C)  Assembly lube
D)  Fogging oilE) None of the above
F) A) and B)

Question 8

The most common cause of premature bearing failure is ________.

Accepted Answer

A)  No lubrication
B)  Dirt
C)  Overloading
D)  MisalignmentE) A) and D)
F) None of the above

Question 9

Two technicians are discussing the torqueing procedure for head bolts. Technician A says that they should be tightened starting at the center of the head and working toward the ends. Technician B says that they should be tightened in three steps or according to the factory specified manner if torque-to-yield or torque-angle. Who is right?

Accepted Answer

A)  Technician A only
B)  Technician B only
C)  Both technicians A and B
D)  Neither technician A nor BE) A) and C)
F) B) and D)

Question 10

If the torque and horsepower readings are graphed, where do the curves cross (equal each other) ?

Accepted Answer

A)  At 5,252 RPM
B)  Never
C)  At peak horsepower, which can vary from engine to engine
D)  At peak torque, which can vary from engine to engineE) A) and D)
F) C) and D)

Question 11

Technician A says that all oil galleries must be thoroughly cleaned before engine assembly can begin. Technician B says that all expansion cups and plugs should be installed with a sealer to prevent leaks. Who is right?

Accepted Answer

A)  Technician A only
B)  Technician B only
C)  Both technicians A and B
D)  Neither technician A nor BE) A) and B)
F) None of the above

Question 12

Technician A says that studs should be installed finger tight. Technician B says that studs must be installed using a thread locker such as Locktite. Which technician is correct?

Accepted Answer

A)  Technician A only
B)  Technician B only
C)  Both technicians A and B
D)  Neither technician A nor BE) A) and B)
F) C) and D)

Question 13

Service information states SAE 30 engine oil should be used on the threads of the head bolts, before installation and torquing. Technician A says that SAE 5W-30 will work. Technician B says that SAE that 10W-30 will work. Who is right?

Accepted Answer

A)  Technician A only
B)  Technician B only
C)  Both technicians A and B
D)  Neither technician A nor BE) B) and D)
F) None of the above

Exam 37: Engine Assembly and Dynamometer Testing

A coating often used to keep an engine from rusting during assembly is called ________.

Correct Answer
verified

Service information states SAE 30 engine oil should be used on the threads of the head bolts, before installation and torquing. Technician A says that SAE 5W-30 will work. Technician B says that SAE that 10W-30 will work. Who is right?

Correct Answer
verified

An engine dynamometer may use devices to convert pressure and temperature signals into electronic signals. These devices are called ________.

Correct Answer
verified

Engine pre-oiling is recommended for which of these reasons?

Correct Answer
verified

Main bearings and rod bearings should be checked for proper oil clearance by precision measuring the crankshaft journals and inside diameter of bearings, or by using which of these?

Correct Answer
verified

Technician A says that all oil galleries must be thoroughly cleaned before engine assembly can begin. Technician B says that all expansion cups and plugs should be installed with a sealer to prevent leaks. Who is right?

Correct Answer
verified

Technician A says that the back of all engine bearings should be lubricated during assembly. Technician B says that the face of the main and rod bearings should be lubricated before final assembly. Who is right?

Correct Answer
verified

The cylinder head bolts should be tightened (torqued) by which of these sequences?

Correct Answer
verified

Correct Answer
verified

The most common cause of premature bearing failure is ________.

Correct Answer
verified

Correct Answer
verified

Technician A says that studs should be installed finger tight. Technician B says that studs must be installed using a thread locker such as Locktite. Which technician is correct?

Correct Answer
verified

If the torque and horsepower readings are graphed, where do the curves cross (equal each other) ?

Correct Answer
verified

Exam 37: Engine Assembly and Dynamometer Testing

A coating often used to keep an engine from rusting during assembly is called ________.

Correct AnswerverifiedShow Answer

Service information states SAE 30 engine oil should be used on the threads of the head bolts, before installation and torquing. Technician A says that SAE 5W-30 will work. Technician B says that SAE that 10W-30 will work. Who is right?

Correct AnswerverifiedShow Answer

An engine dynamometer may use devices to convert pressure and temperature signals into electronic signals. These devices are called ________.

Correct AnswerverifiedShow Answer

Engine pre-oiling is recommended for which of these reasons?

Correct AnswerverifiedShow Answer

Main bearings and rod bearings should be checked for proper oil clearance by precision measuring the crankshaft journals and inside diameter of bearings, or by using which of these?

Correct AnswerverifiedShow Answer

Technician A says that all oil galleries must be thoroughly cleaned before engine assembly can begin. Technician B says that all expansion cups and plugs should be installed with a sealer to prevent leaks. Who is right?

Correct AnswerverifiedShow Answer

Technician A says that the back of all engine bearings should be lubricated during assembly. Technician B says that the face of the main and rod bearings should be lubricated before final assembly. Who is right?

Correct AnswerverifiedShow Answer

The cylinder head bolts should be tightened (torqued) by which of these sequences?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

The most common cause of premature bearing failure is ________.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Technician A says that studs should be installed finger tight. Technician B says that studs must be installed using a thread locker such as Locktite. Which technician is correct?

Correct AnswerverifiedShow Answer

If the torque and horsepower readings are graphed, where do the curves cross (equal each other) ?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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