Question 1

Typical thrust bearing clearance is ________.

Accepted Answer

A) 0.025 to 0.035 
B) 0.001 to 0.003 
C) 0.050 to 0.100 
D) 0.002 to 0.012 
A) 0.025 to 0.035 
B) 0.001 to 0.003 
C) 0.050 to 0.100 
D) 0.002 to 0.012 D

Question 2

Turning the oil pump before starting the engine should be done for all of these reasons, EXCEPT ________.

Accepted Answer

A) To get the distributor in the right position 
B) Supply oil to the camshaft 
C) Lubricate valve train components 
D) Lubricate engine bearings 
A) To get the distributor in the right position 
B) Supply oil to the camshaft 
C) Lubricate valve train components 
D) Lubricate engine bearings A

Question 3

An engine dynamometer measures ________.

Accepted Answer

A) Horsepower 
B) Fuel economy 
C) Torque 
D) Both horsepower and torque 
A) Horsepower 
B) Fuel economy 
C) Torque 
D) Both horsepower and torque C

Question 4

About how much of the turning torque applied to a head bolt is lost to friction?

Accepted Answer

A) 40% 
B) 20% 
C) 80% 
D) 60% 
A) 40% 
B) 20% 
C) 80% 
D) 60%

Question 5

What can be used to check that the heads are at the correct angle for the intake manifold on a V-type engine?

Accepted Answer

A) A tape measure 
B) A metal rule 
C) An angle gauge 
D) A dial indicator 
A) A tape measure 
B) A metal rule 
C) An angle gauge 
D) A dial indicator

Question 6

Technician A says that the torque applied to the head bolts is the same as the clamping force on the gasket. Technician B says that the clamping force is the force actually applied to the surfaces of the gasket. Who is right?

Accepted Answer

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

Question 7

What can happen if gasket surfaces are too smooth?

Accepted Answer

A) Nothing will happen 
B) Gasket can move out of proper location, causing leakage 
C) Gasket will not be able to seal the deep grooves in the surface 
D) Gasket will seal with no leaks 
A) Nothing will happen 
B) Gasket can move out of proper location, causing leakage 
C) Gasket will not be able to seal the deep grooves in the surface 
D) Gasket will seal with no leaks

Question 8

The TTY method of tightening bolts involves which of these processes?

Accepted Answer

A) Turning bolts a specified number of degrees after initial torque 
B) Turning all bolts the same number of turns 
C) Torqueing to specifications and loosening by a specified number of degrees 
D) Torqueing to one-half specifications, then to three-quarter torque, then to full torque 
A) Turning bolts a specified number of degrees after initial torque 
B) Turning all bolts the same number of turns 
C) Torqueing to specifications and loosening by a specified number of degrees 
D) Torqueing to one-half specifications, then to three-quarter torque, then to full torque

Question 9

Technician A says that glues are used to help gaskets seal. Technician B says that deburring all sharp edges is an important step that has to be done to achieve proper engine 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 B 
A) Technician A only 
B) Technician B only 
C) Both technicians A and B 
D) Neither technician A nor B

Question 10

Cam bearings should be installed ________.

Accepted Answer

A) Dry 
B) Oiled 
C) With 0.100 inches of crush 
D) Both B and C 
A) Dry 
B) Oiled 
C) With 0.100 inches of crush 
D) Both B and C

Question 11

Piston ring end gap can be increased by ________.

Accepted Answer

A) Filing the ring to make gap larger 
B) Sleeving the cylinder 
C) Knurling the piston 
D) Installing oversize rings 
A) Filing the ring to make gap larger 
B) Sleeving the cylinder 
C) Knurling the piston 
D) Installing oversize rings

Question 12

Which of these is TRUE about checking bearing clearances using Plastigage?

Accepted Answer

A) The cap should be torqued to factory specifications 
B) The wider the strip means the narrower the oil clearance 
C) The journal should be clean and oil free 
D) All of the above 
A) The cap should be torqued to factory specifications 
B) The wider the strip means the narrower the oil clearance 
C) The journal should be clean and oil free 
D) All of the above

Question 13

Technician A says that the piston and rod assembly should be installed in the cylinder after being carefully fitted for each bore. Technician B says that connecting rod side clearance should be checked with a feeler (thickness) gauge. Who is right?

Accepted Answer

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

Question 14

What would happen if oil or water (coolant) was at the bottom of a dry hole in the bolt when the head bolts are installed and torqued?

Accepted Answer

A) Block could crack 
B) Liquid would be forced upward and out of the hole 
C) Bolt would break 
D) Either B or C 
A) Block could crack 
B) Liquid would be forced upward and out of the hole 
C) Bolt would break 
D) Either B or C

Question 15

Head gasket installation is being discussed. Technician A says that the surface finish of the cylinder head or block deck is very important for proper sealing to occur. Technician B says that if "front" is marked on a head gasket, the mark should be installed near the accessory drive belt end of the engine. Who is right?

Accepted Answer

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

Question 16

Technician A says oil that pressure should be tested before installation of the engine in the vehicle. Technician B says that some cylinder heads use the torque-to-yield method, where the head bolts are tightened to a specified torque and then rotated an additional specified number of degrees. Who is right?

Accepted Answer

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

Question 17

Technician A says to be sure the piston notch "front" or arrow points toward the front of the engine. Technician B says to be sure that the piston ring gaps all line up before installing the piston.. Who is right?

Accepted Answer

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

Question 18

A engine dynamometer is used to measure engine ________.

Accepted Answer

A) Horsepower 
B) Weight 
C) Mass 
D) Torque 
A) Horsepower 
B) Weight 
C) Mass 
D) Torque

Question 19

Technician A says that the cam bearings should be installed using a driver and dead blow hammer.Technician B says that main bearings and rod bearings should be checked for proper oil clearance by measuring the crankshaft journals and inside diameter of bearings. Who is right?

Accepted Answer

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

Question 20

For high performance use, most experts recommend the use of ________ instead of standard bolts.

Accepted Answer

A) Nuts 
B) Prevailing torque bolts 
C) Lag bolts 
D) Studs 
A) Nuts 
B) Prevailing torque bolts 
C) Lag bolts 
D) Studs

Exam 37: Engine Assembly and Dynamometer Testing

Typical thrust bearing clearance is ________.

Turning the oil pump before starting the engine should be done for all of these reasons, EXCEPT ________.

An engine dynamometer measures ________.

About how much of the turning torque applied to a head bolt is lost to friction?

What can be used to check that the heads are at the correct angle for the intake manifold on a V-type engine?

Technician A says that the torque applied to the head bolts is the same as the clamping force on the gasket. Technician B says that the clamping force is the force actually applied to the surfaces of the gasket. Who is right?

What can happen if gasket surfaces are too smooth?

The TTY method of tightening bolts involves which of these processes?

Technician A says that glues are used to help gaskets seal. Technician B says that deburring all sharp edges is an important step that has to be done to achieve proper engine assembly. Who is right?

Cam bearings should be installed ________.

Piston ring end gap can be increased by ________.

Which of these is TRUE about checking bearing clearances using Plastigage?

Technician A says that the piston and rod assembly should be installed in the cylinder after being carefully fitted for each bore. Technician B says that connecting rod side clearance should be checked with a feeler (thickness) gauge. Who is right?

What would happen if oil or water (coolant) was at the bottom of a dry hole in the bolt when the head bolts are installed and torqued?

Technician A says to be sure the piston notch "front" or arrow points toward the front of the engine. Technician B says to be sure that the piston ring gaps all line up before installing the piston.. Who is right?

A engine dynamometer is used to measure engine ________.

Technician A says that the cam bearings should be installed using a driver and dead blow hammer.Technician B says that main bearings and rod bearings should be checked for proper oil clearance by measuring the crankshaft journals and inside diameter of bearings. Who is right?

For high performance use, most experts recommend the use of ________ instead of standard bolts.

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