wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

2026 Final-103 Drivetrains

Total questions: 65

Worksheet time: 3hrs 36mins

Name
Class
Date
1.

what is the average (industry standard) measurement for the gap between the clutch brake and throw out bearing?

a)

3/4 inch

b)

1 inch

c)

1 foot

d)

1/2 inch

2.

what is this component of the clutch that pushes against the throw out bearing:

a)

yoke clutch release

b)

input shaft

c)

clutch bushing

d)

clutch adjuster

3.

What is this component of the clutch system:

a)

yoke clutch release

b)

clutch brake

c)

clutch bushing

d)

flywheel housing

4.

What distance(GAP) should there be between the throw out bearing and the clutch forks on most clutches?

a)

1/2 inch

b)

1/8 inch

c)

1/4 inch

d)

3/4 inch

5.

can a clutch be rebuilt:

a)

true

b)

false

6.

Warping or damage to the discs could cause the discs to stay partially pressed against the flywheel or pressure plate when disengaged.

a)

true

b)

false

7.

What is the function of a clutch in a vehicle?

a)

To change gears

b)

To start the engine

c)

To connect and disconnect the engine from the drivetrain

d)

To provide power to the wheels

8.

What could be a possible symptom of a failing clutch?

a)

Difficulty in steering

b)

Engine overheating

c)

Difficulty in changing gears

d)

Reduced fuel efficiency

9.

 Clutch inspection and maintenance should be performed according to the manufacturer's maintenance schedule which depends upon vehicle vocation.

a)

true

b)

false

10.

which of these is not a element of preventive maintenance?

a)

clutch inspection

b)

lubrication

c)

clutch rebuild

d)

clutch adjustment

11.

What tool do you use to measure free play of a clutch pedal:

a)

pen

b)

voltmeter

c)

pressure regulator

d)

tape measure

12.

What is the role of the clutch disc in a vehicle:

a)

To provide traction for the clutch to engage and disengage

b)

To cool down the engine

c)

To increase fuel efficiency

d)

To control the steering

13.

What is the role of the flywheel in a vehicle's clutch system?

a)

To provide friction to the clutch

b)

To connect the engine to the wheels

c)

To store rotational energy

d)

To control the speed of the vehicle

14.

Regular lubrication of the clutch components can extend the life of the clutch.

a)

true

b)

false

15.

What is the typical thickness of a new clutch disc:

a)

1/2 inch

b)

1/4 inch

c)

1/8 inch

d)

3/4 inch

16.

The Spur gear teeth are :

a)

Straight cut teeth

b)

Angle cut teeth

c)

Cut on two diagonal lines of teeth

d)

Spiral teeth

17.

A Helical gear teeth are:

a)

Straight cut teeth

b)

Angle cut teeth

c)

Double offset teeth

d)

Spiral teeth

18.

When a small gear is driving a larger gear, the term used would be :

a)

Overdrive

b)

Direct drive

c)

Underdrive

d)

Spline drive

19.

When a large gear is driving a smaller gear, the term for this is:

a)

Underdrive

b)

Overdrive

c)

Direct drive

d)

Four wheel drive

20.

When calculating the gear ratio on a gear set that incorporates and idler gear.

a)

You must use the two gear ratio math method

b)

You can ignore the idler gear size and calculate using the drive and driven gears only.

c)

You have to measure the size of the gear with a dial caliper before you can calculate the ratio

d)

You must know the speed of the gear first before you can calculate the gear ratio.

21.

What is the main function of an idler gear:

a)

To increase the speed of the driven gear

b)

To decrease the speed of the driven gear

c)

To increase the torque of the driven gear

d)

To change the direction of rotation of the driven gear

22.

What is the main difference between spur and helical gears?

a)

Spur gears are more efficient than helical gears

b)

Helical gears are more efficient than spur gears

c)

Helical gears are quieter and can carry more load than spur gears

d)

Spur gears can be used in both parallel and non-parallel shafts, while helical gears can only be used in parallel shafts

23.


What type of gearing system is this

a)

orbital

b)

planetary

c)

universal

d)

rotational

24.

What is the purpose of a gear in a machine?

a)

To measure rotational speed

b)

To tighten bolts

c)

To change the direction of rotational movement

d)

To multiply torque

25.

Which of these does not apply to the transmission fluid

a)

It cleans

b)

It lubricates

c)

It cools

d)

It adds horsepower

26.

Tech A says that if the clutch brake is within 0.75" from the throw out bearing on a pull-type clutch it is at the correct adjustment. Tech B says he is certain that 0.5" is correct. Who is correct?

a)

Tech A

b)

Tech B

c)

Both Techs

d)

Neither Techs

27.

After correcting the release-bearing free travel dimension to be ____". Check that the clearance between the release fork fingers and the contact pads on the release-bearing is ____"

a)

1/8"-0.5"

b)

0.5", 1"

c)

0.5", 1/8"

d)


0.75", 0.55

28.

An out of adjustment clutch brake causes _______ ________ to grind into the selected gear.

a)

Sliding Clutches

b)

Alignment Gears

c)

Clutch Sliders

d)

Input Shafts

29.

The __________ is the area that meets a mating gear.

a)

Dedendum

b)

Tooth face

c)

Root

d)

Top land

30.

In (most cases), when there is catastrophic damage to a transmission requiring complete overhaul, A standard truck shop will __________.

a)

Install a rebuilt transmission

b)

Remove and overhaul the failed transmission

c)

Overhaul the failed transmission in the truck

d)

Install a used transmission

31.

Which of the following best defines fatigue failures:

a)

They occur when a component is momentarily overloaded to a level that surpasses the base strength of the material.

b)

They occur because of lack of driver training or caring.

c)

They occur gradually and progress until the component fails.

d)

They are normally due to poor maintenance, incorrect lubrication, lack of lubrication, and contaminated lube.

32.

Simple gear ratios are the relationship between one driving and one __________ gear.

a)

Main shaft

b)

Input

c)

Driven

d)

Countershaft

33.

How do you normally check the fluid for a differential assembly or manual transmissions ?

a)

remove correct fluid level plug and verify fluid is at base of threads

b)

drain fluid and refill

c)

check filters

d)

check dipstick

34.

What type of gear is the simplest of modern gears used in vehicles today:

a)

Worm gear

b)

Spur gear

c)

Helical gear

d)

Pinion gear

35.

What component does the clutch disc spline to?

a)

Input shaft

b)

pressure plate

c)

Flywheel

d)

crankshaft

36.
A type of gear used for transmitting motion and power between non-intersecting shafts, usually at 90° to each other.
a)
Worm Gear
b)
Plate Cam
c)
Sun Gear
d)
Planetary Gear
37.

What component is this:

a)

Throw-out Bearing

b)

Input Shaft

c)

Output Shaft

d)

Wheel Bearing

38.

What component is this:

a)

Clutch Cover

b)

Clutch Disc

c)

Flywheel

d)

Intermediate Plate

39.

Clutch __________ is the intermittent grabbing and slipping of the clutch while it is being engaged.

a)

Grabbing

b)

Engagement

c)

Chatter

d)

Slipping

40.

What is the name of this component:

a)

friction disc

b)

clutch housing

c)

flywheel

d)

clutch fork

41.

What is the name of the bottom of a straight cut gear tooth

a)

dedendum

b)

addendum

42.

What is the name of the top of a straight cut gear tooth

a)

Addendum

b)

dedendum

43.

In medium- and heavy-duty vehicles, gears are typically made from ______ or cast ductile iron.

a)

steel

b)

aluminum

c)

plastic

d)

copper

44.

When two external toothed gears are in mesh with each other, what happens to the direction of the driven gear compared to the drive gear?

a)

It turns in the same direction

b)

It turns in the opposite direction

c)

It stops moving

d)

It turns faster

45.

When a gear with external teeth is in mesh with a ring or internal gear, what happens to the direction of the driven gear compared to the drive gear?

a)

It rotates in the same direction

b)

It rotates in the opposite direction

c)

It stops moving

d)

It rotates slower

46.

What is the relationship between the sizing of gears called?

a)

Gear ratio

b)

Torque

c)

Speed

d)

Power

47.

Which of the following is a characteristic of spur gears?

a)

They are complex and expensive to manufacture

b)

They produce axial thrust during operation

c)

They are simpler and less expensive to manufacture

d)

Their teeth are cut at an angle to the axis of rotation

48.

Which type of gear is shown in the diagram?

a)

Spur gear

b)

Bevel gear

c)

Worm gear

d)

Helical gear

49.

Helical gears are much _______ in operation than spur gears.

a)

quieter

b)

noisier

c)

slower

d)

weaker

50.

Name this gear

(a)  

51.

Tech A says Helical Gears create axial thrust. Tech B says Spur gears create axial thrust. Who is correct?

a)

Tech A

b)

Tech B

c)

Both Tech A and B

d)

Neither Tech A nor B

52.

Match the Following:

a)

1.

Crown

b)

2.

Spider

c)

3.

Cross

d)

4.

Spider Gear

53.

Simple gear ratios are the relationship between one driving and one __________ gear.

a)

Main shaft

b)

Input

c)

Driven

d)

Countershaft

54.

What would be the gear ratio when gears with the same number of teeth are meshed?

a)

1:3

b)

1:2

c)

2:1

d)

1:1

55.

Technician A says that the flywheel housing wear cannot be measured. Technician B says flywheel housing wear can be measured. Who is correct?

a)

Technician A

b)

Technician B

c)

Both Technician A and Technician B

d)

Neither Technician A nor Technician B

56.

Self-adjusting clutches have an automatic adjusting system that relies on __________ movement to cause an adjustment.

a)

Clockwise

b)

Pedal

c)

Pressure plate

d)

Linkage

57.

If a clutch pedal is hard to depress, what would a possible cause be?

a)

Warped clutch disc or pressure plate

b)

Intermediate plate binding

c)

Insufficient release bearing free travel

d)

Linkage binding

58.

Which of the following best defines fatigue failures?

a)

They occur when a component is momentarily overloaded to a level that surpasses the base strength of the material.

b)

They occur because of lack of driver training or caring.

c)

They occur gradually and progress until the component fails.

d)

They are normally due to poor maintenance, incorrect lubrication, lack of lubrication, and contaminated lube.

59.

In most cases, when there is catastrophic damage to a transmission requiring complete overhaul, the shop will __________.

a)

Install a rebuilt transmission

b)

Remove and overhaul the failed transmission

c)

Overhaul the failed transmission in the truck

d)

Install a used transmission

60.

Multiple-countershaft transmissions split the input torque between __________ countershafts.

a)

2 or 3

b)

3 or 4

c)

6

d)

8

61.

The __________ is the area that meets a mating gear.

a)

Dedendum

b)

Tooth face

c)

Root

d)

Top land

62.

The spacers that were removed from under the differential ring gear carrier bearings will determine backlash when reinstalled.

a)

True

b)

False

63.

Ring gear tooth pattern represents

a)

Proper pinion bearing preload and torque

b)

Proper side gear internal clearance

c)

Proper ring gear runout

d)

Proper contact between the ring and pinion gears

64-89.

no assist for these questions

64.

What is the primary function of trailer dead axles?

a)

To provide attachment points for brakes and suspension.

b)

To increase the speed of the vehicle.

c)

To reduce the weight of the trailer.

d)

To improve fuel efficiency.

65.

What is a characteristic of drop center tubular axles?

a)

They are convex in the middle.

b)

They are concave in the middle.

c)

They are flat in the middle.

d)

They are cylindrical throughout.

66.

What is the primary function of a drive (live) axle?

a)

To allow the rotational power to turn 90 degrees

b)

To increase the speed of the vehicle

c)

To reduce the engine's rotational power

d)

To control the braking system

67.

What is a worm-and-crown gear set composed of?

a)

A shaft with machined roll threads on the worm in mesh with a crown gear.

b)

A shaft with smooth roll threads on the worm in mesh with a crown gear.

c)

A shaft with machined roll threads on the worm in mesh with a spur gear.

d)

A shaft with smooth roll threads on the worm in mesh with a spur gear.

68.

What is the term for a worm mounted below the crown wheel in a worm-and-crown gear set?

a)

Underslung.

b)

Top-mount.

c)

Bottom-mount.

d)

Crown-mount.

69.

What is the primary function of bevel gears in modern trucks?

a)

To increase the speed of rotation.

b)

To turn rotational power through 90 degrees.

c)

To reduce noise in the axle system.

d)

To connect the axle to the engine directly.

70.

What is the name of the small driving gear in a bevel gear system?

a)

Crown gear.

b)

Ring gear.

c)

Pinion gear.

d)

Differential gear.

71.

What is one benefit of spiral bevel gears in terms of torque?

a)

Reduction in torque capacity

b)

Boost in torque capacity

c)

Elimination of torque

d)

Stabilization of torque

72.

What feature of durapoid tooth design contributes to its effectiveness?

a)

A decentralized tooth contact pattern

b)

A centralized tooth contact pattern

c)

A lightweight tooth structure

d)

A flexible tooth design

73.

What is the position of the pinion in an amboid gear set relative to the crown gear centerline?

a)

Below the centerline

b)

Above the centerline

c)

At the centerline

d)

To the side of the centerline

74.

What is the shape of the tooth drive face side of the amboid crown gear?

a)

Convex

b)

Flat

c)

Concave

d)

Cylindrical

75.

What advantage does the amboid gear design provide for the driveshaft universal joints?

a)

Larger operating angles

b)

Smaller operating angles

c)

Increased torque

d)

Reduced friction

76.

According to Detroit, what design feature of the topoid system contributes to reduced driveline angles and vibration?

a)

The lower placement of the pinion

b)

The higher placement of the pinion

c)

The use of an amboid system

d)

The addition of extra gears

77.

What is the function of the carrier in a drive axle?

a)

To hold the support bearings for the drive axle gearing

b)

To provide lubrication for the axle

c)

To connect the axle to the wheels

d)

To control the speed of the vehicle

78.

How do differential gears differ in purpose from drive axle gearing?

a)

Differential gears serve a completely different purpose than drive axle gearing

b)

Differential gears increase the speed of the drive axle

c)

Differential gears reduce the weight of the vehicle

d)

Differential gears improve the vehicle's aerodynamics

79.

What is the primary function of differential gears in a vehicle?

a)

To allow wheels to turn at equal speeds during a turn

b)

To allow wheels to turn at unequal speeds during a turn

c)

To reduce the turning radius of the vehicle

d)

To increase the speed of the vehicle during a turn

80.

What happens to the wheels on the outside of an axle during a turn (mark all that apply):

a)

They travel a shorter distance than the inside wheels

b)

They travel the same distance as the inside wheels

c)

They travel further than the inside wheels

d)

They turn slower than the inside tires.

e)

They spin faster than the interior tires.

81.

What happens to the inside and outside gears of a differential gear set when a vehicle turns?

a)

Both gears slow down.

b)

Both gears speed up.

c)

The inside gear slows down, and the outside gear speeds up.

d)

The inside gear speeds up, and the outside gear slows down.

82.

What is the role of spider gear teeth in a differential gear set during a turn?

a)

They stop the motion of the gears.

b)

They transfer motion to the other side gear, causing it to speed up.

c)

They slow down both gears equally.

d)

They reverse the direction of the gears.

83.

What is the primary function of thrust washers in differential gear sets?

a)

To increase the speed of rotation between the gears

b)

To absorb heavy thrust loads caused by bevel gears

c)

To reduce the size of the differential case

d)

To eliminate the need for lubrication in the gears

84.

What material are the thrust washers in differential side and spider gears typically made of?

a)

Plastic

b)

Aluminum

c)

Steel

d)

Copper

85.

What can cause damage to the spider gear in a differential gear set?

a)

Excessive lubrication.

b)

Uneven tire pressure.

c)

One wheel of the differential spinning.

d)

Overloading the vehicle.

86.

What is the major benefit of a differential in a vehicle?

a)

It allows wheels to rotate at the same speed.

b)

It allows wheels to rotate at different speeds when necessary.

c)

It increases the torque required to spin wheels on slippery surfaces.

d)

It prevents wheel spin on slippery surfaces.

87.

What is a major drawback of a differential in a vehicle?

a)

It requires more torque to spin wheels on slippery surfaces.

b)

It allows wheels to rotate at different speeds, which can lead to spin-out conditions.

c)

It prevents wheels from spinning on slippery surfaces.

d)

It increases the resistance of wheels on slippery surfaces.

88.

What is the function of friction plates in a controlled traction differential?

a)

They are splined to a movable spline that slides along one axle shaft.

b)

They provide lubrication to the axle shaft.

c)

They prevent the axle shaft from rotating.

d)

They act as a brake for the vehicle.

89.

What happens when locking differential systems are activated?

a)

The vehicle's speed increases

b)

One side gear is prevented from turning, stopping spider gear movement

c)

The suspension system becomes more rigid

d)

The engine power is reduced

90.

Which gears apply to the clutch break (mark all that apply):

a)

1st

b)

2nd

c)

3rd

d)

reverse

e)

5th