Final Test Study

Question 1

During the disengagement process, the clutch release levers move the clutch release bearing.
True
False

Answer 1

False

Question 2

An engine drive uses the spring controlled centrifugal clutch so as to allow for engine idling.
True
False

Answer 2

True

Question 3

Flywheel, clutch housing and transmission housing face runout checks are conducted to ensure components will be parallel to one another during operation.
True
False

Answer 3

True

Question 4

Which device allows a driveline to change in length during operation?
a. full round yoke
b. universal joint
c. half round yoke
d. slip joint

Answer 4

d. slip joint

Question 5

Universal joint working angles are not affected by driveline speed.
True
False

Answer 5

False

Question 6

A basic driveline configuration has one shaft. More complex driveline configurations use:
a. a single shaft
b. belts and pulleys
c. multiple shafts
d. chains and sprockets

Answer 6

c. multiple shafts

Question 7

The gear pitch line is used to divide the following gear tooth areas:
a. heel and toe
b. drive and coast
c. face and flank
d. fillet and profile

Answer 7

c. face and flank

Question 8

When installed between a drive and driven gear, an idler gear affects speed and torque changes between the two gears.
True
False

Answer 8

False. Changes rotating direction.

Question 9

Which of the following gear ratios would be a reduction gear ratio?
a) 0.10:1
b) 1.00:1
c) 10.00:1
d) 1.00:2

Answer 9

c. 10.00:1

Question 10

Multiple countershaft transmissions use several housings. These housings are kept in alignment through the use of:
a) shouldered bolts.
b) precise doweling.
c) tapered plugs.
d) floating cap screws.

Answer 10

b) precise doweling.

Question 11

The formula for determining gear ratio is the number of teeth on the driven gear divided by the number of teeth on the drive gear.
True
False

Answer 11

True

Question 12

The input shaft and gear:
a) deliver torque to the mainshaft gears.
b) are supported on bushings.
c) are driven by the clutch discs.
d) utilize a lip seal for sealing.

Answer 12

c) are driven by the clutch discs.

Question 13

The three speed auxiliary section provides:
a) 15 gear speeds.
b) 18 gear speeds.
c) 13 gear speeds.
d) 12 gear speeds.

Answer 13

d) 12 gear speeds.

Question 14

Why are lithium ion batteries desirable for electric hybrid applications?
a) high discharge rates and low storage capacity.
b) high discharge rates and high storage capacity.
c) Low discharge rates and high storage capacity.
d) low discharge rates and low storage capacity.

Answer 14

c) Low discharge rates and high storage capacity.

Question 15

The purpose of the range, splitter and deep reduction cylinders is to:
a) transmit the gearshift lever actions to shift the auxiliary section sliding clutches.
b) use the air signal to shift the main section sliding clutches.
c) use the air signal to shift the auxiliary section sliding gears.
d) use the air signal to shift the auxiliary section sliding clutches.

Answer 15

d) use the air signal to shift the auxiliary section sliding clutches.

Question 16

The air filter/regulator generally regulates air to ________________ pressure.
a) 18 psi to 26 psi.
b) 58 psi to 63 psi.
c) 97 psi to 103 psi.
d) 120 psi to 130 psi.

Answer 16

b) 58 psi to 63 psi.

Question 17

The range cylinder is a double acting cylinder that uses a spring to hold it in the low position and air to shift it into the high position.
True
False

Answer 17

False

Question 18

The transmission shift controller contains:
a) electronic control unit and dash display.
b) electronic control unit and operator shift console.
c) operator shift console and dash display.
d) main section electric shifter and range/splitter assemblies.

Answer 18

b) electronic control unit and operator shift console.

Question 19

Leaking output shaft seals, worn output shaft bearings and broken synchronizer pins are often an indication of a problem with the:
a) engine and transmission mounts.
b) clutch systems.
c) driveline.
d) shift mechanism.

Answer 19

c) driveline

Question 20

Premature input shaft bearing failure or slip out in direct gear is often an indication of a problem with the:
a) engine and transmission mounts.
b) clutch systems.
c) driveline.
d) shift mechanism.

Answer 20

a) engine and transmission mounts.

Question 21

A visual inspection process is an integral part of the transmission disassembly procedure.
True
False

Answer 21

True

Question 22

When establishing the buffer zone around a diesel electric hybrid, what is the recommended distance the cones be placed from each corner of the vehicle?
a) 0.5m
b) 1.0m
c) 1.5m
d) 2.0m

Answer 22

b) 1.0m

Question 23

Regulated air is applied to keep the range in low and the splitter in low.
True
False

Answer 23

True

Question 24

What medium of stored energy is contained within an accumulator?
a) gaseous
b) fluid
c) fluid and gas
d) plasma

Answer 24

c) fluid and gas

Question 25

The indicator light for the power takeoff system is activated by an engagement switch located in the shift valve. True False

Answer 25

False

Question 26

What device does a full time transfer case use to prevent driveline windup? a) planetary gear set. b) typical differential assembly c) limited slip clutch pack d) windup clutch

Answer 26

a) planetary gear set.

Question 27

On the air actuated power takeoff system, what is the air routed through before going to the air valve? a) pressure protection valve b) pressure regulator valve c) flow control valve d) the shift cylinder

Answer 27

a) pressure protection valve

Question 28

PTO backlash must be measured between: a) the PTO input gear and the PTO output gear. b) the PTO input gear and the idler. c) the PTO input gear and the transmission drive gear. d) the transmission drive gear and the transmission input gear.

Answer 28

c) the PTO input gear and the transmission drive grear.

Question 29

The gross combination weight rating refers to the: a) amount of weight each axle can carry. b) combined gross axle weight ratings for a vehicle. c) total combined gross axle weight ratings for a vehicle and it's trailers. d) amount a vehicle weighs empty.

Answer 29

c) total combined gross axle weight ratings for a vehicle and it's trailers.

Question 30

The input shaft drives the helical drive gear through a set of splines. True False

Answer 30

False

Question 31

Which components are attached to the drive axle housing? a) suspension components. b) wheels tires and hubs. c) carrier housing d) all of the above

Answer 31

d) all of the above

Question 32

The temperature at which the truck should be shut down and the cause of the excessive heat established and repaired is: a) 160F b) 220F c) 250F d) 275F

Answer 32

c) 250F

Question 33

When checking pinion bearing preload using a cord and a spring scale, record the reading required to start the assembly rolling. True False

Answer 33

False, force required to keep it rolling.

Question 34

On a carrier assembly, if a thrust screw is used, mark the spot with the most ________________ the thrust screw side of the bevel gear. a) back face runout toward. b) back face runout away. c) radial towards. d) radial away from.

Answer 34

a) back face runout toward.

Question 35

57. What type of controls regulate the flow of air conditioning refrigerant or heater coolant without driver input? a) active b) passive c) supplemental d) mandatory

Answer 35

b) passive

Question 36

58. The maximum allowable filling limit for any refrigerant container is: a) 65% of its internal volume b) 75% of its internal volume c) 80% of its internal volume d) 90% of its internal volume

Answer 36

c) 80% of its internal volume

Question 37

66. From what electrical terminal does the low beam headlight circuit receive electrical power? a) ignition switched terminal. b) constant power terminal c) safety power terminal. d) high power terminal

Answer 37

b) constant power terminal

Question 38

68. What component prevents all warning lights from illuminating when one warning light is illuminated? a) fusible link b) buzzer c) relays d) isolating diodes

Answer 38

d) isolating diodes

Question 39

69. A hall effect sensor sends an amperage signal to the ammeter by: a) measuring the current along the shunt. b) using an integrated circuit amplifier. c) reversing the current flow d) grounding the signal from the alternator.

Answer 39

b) using an integrated circuit amplifier.

Question 40

74. High wear of brass bushings would be indicated in an oil analysis as high ppm of: a) copper and zinc b) copper and tin c) brass and copper d) tin and silver

Answer 40

a) copper and zinc

Question 41

75. A metal fracture surface that indicates several beach marks and a final fracture area is best described as: a) a ductile fracture. b) a fatigue fracture. c) a brittle fracture. d) a beach fracture

Answer 41

b) a fatigue fracture

Question 42

76. Prior to inspection, metal specimens taken from a failure must be thoroughly cleaned, preferably with a power wire wheel. True False

Answer 42

False

Question 43

35.The three major components of a power steering system are the: a) pump, connecting lines and reservoir b) steering gear, connecting lines and reservoir c) relief valve, connecting lines and pump. d) reservoir, pump and steering gear.

Answer 43

d) reservoir, pump and steering gear.

Question 44

36. In a rack and pinion steering system, the movement of the wheels is controlled through the upper steering arm. True False

Answer 44

False

Question 45

38. After installing new king pin bushings you must ream the new bushings out. True False

Answer 45

False

Question 46

41. Which of the following alignment measurements or angles are adjustable? a) toe and caster b) toe out on turns c) kingpin inclination d) camber and kingpin inclination

Answer 46

a) toe and caster

Question 47

42) A cross tube that has been bent due to a collision with an obstacle in off road conditions will affect which alignment measurements or angles? a) caster b) camber c) toe out on turns d) toe

Answer 47

d) toe

Question 48

43. When viewed from the front of the vehicle, both front tires appear to have positive camber. The tires are tilted: a) in at the top. b) out at the top c) forward. d) rearward

Answer 48

b) out at the top

Question 49

44. The order in which the ECU instructs the modulator valve to control air pressure is: a) hold, reapply and exhaust. b) reapply, exhaust and hold. c) exhaust, hold and reapply. d) exhaust, reapply and hold.

Answer 49

c) exhaust, hold and reapply.

Question 50

50. The function of an ABS modulator valve assembly include: a) transmitting signals to the ECU b) receiving signals from the ECU c) transmitting signals to the wheel speed sensors. d) receiving signals from the wheel speed sensors.

Answer 50

b) receiving signals from the ECU

Question 51

54. R-134A refrigerant, when held at a gauge pressure of 1.9 psi, turns into a vapor at at temperature of: a) -30F b) -10F c) 30F d) 70F

Answer 51

b) -10F

Question 52

56. When the air conditiong system contains a fixed expansion tube and an accumulator, the thermostatic switch may be replaced with a: a) ambient temperature switch. b) high pressure switch. c) clutch cycling switch. d) Binary switch

Answer 52

c) clutch cycling switch

Question 53

58. The Binary switch acts like a: a) low pressure switch b) high pressure switch c) ambient temperature switch d) all of the above

Answer 53

d) all of the above

Question 54

59. The maximum allowable filling limit for any refrigerant container is: a) 65% b) 75% c) 80% d) 90%

Answer 54

c) 80%

Question 55

62. What percentage of ozone is concentrated in the stratosphere? a) 40% b) 70% c) 90% d) 100%

Answer 55

c) 90%

Question 56

64. R134a refrigerant has an ODP of: a) 0 b) 2 c) 4 d) 8

Answer 56

a) 0