WorksheetsDrive Trains and Power Systems Review
Total questions: 19
Worksheet time: 10mins
Name
Class
Date
1.
A ____ transmits power from a vehicle’s engine to its drive wheels.
a)
mechanical transmitter
b)
power train
c)
driveline
d)
differential
2.
A typical power train includes a clutch, ____, differential, and final drive.
a)
transmission
b)
stabilizer bar
c)
harmonic balancer
d)
trans brake
3.
A gear ratio is the number of ____.
a)
drive gears compared to the number of valves an engine has
b)
drive gears compared to the number of driven gears
c)
driven gears compared to the number of valves an engine has
d)
teeth on drive gear compared to the number of teeth on the driven gear
4.
A typical power train includes a clutch, ____, differential, and final drive.
a)
transmission
b)
stabilizer bar
c)
harmonic balancer
d)
trans brake
5.
A clutch is a ____.
a)
friction disc assembly that engages the engine flywheel to transfer power to the gears
b)
set of drive chains that engage the gears on the final drive
c)
fluid coupling that transmits power from the rotating crankshaft to the input shaft of the transmission
d)
set of idler gears in the transmission
6.
A friction disc creates a ____.
a)
loose connection between a shaft and a flywheel
b)
chemical bond between a shaft and a disc
c)
mechanical connection between a flywheel and an output device
d)
permanent connection between a flywheel and a drive shaft
7.
In a gear drive system, more torque is produced when the ____.
a)
larger diameter gear drives the smaller diameter gear
b)
smaller diameter gear drives the larger diameter gear
c)
each gear is the same diameter
d)
drive gear and the driven gear rotate at the same speed
8.
In a gear drive system, more speed is produced when the ____.
a)
larger diameter gear drives the smaller diameter gear
b)
smaller diameter gear drives the larger diameter gear
c)
each gear is the same diameter
d)
drive gear and the driven gear rotate at the same speed
9.
A gear is an example of the simple machine ____.
a)
lever
b)
wedge
c)
incline plane
d)
None of the above.
10.
A set of two meshed gears always spin ____.
a)
clockwise
b)
counterclockwise
c)
in opposite directions
d)
in the direction of the input motion
11.
In a(n) ____ transmission, mechanical power is converted to hydraulic power through a pump/motor combination that modulates fluid pressure.
a)
mechanical
b)
hydrostatic
c)
hydraulic assist
d)
automatic
12.
A differential ____.
a)
provides power to the drive wheels and allows them to spin at two different speeds
b)
couples and decouples the engine and transmission
c)
provides power to the drive wheels and extends and retracts to compensate for suspension travel
d)
changes gear ratios as needed to meet the torque demands of the vehicle
13.
When the clutch pedal is depressed ____.
a)
the pressure plate engages the friction disc
b)
springs pull the friction disc away from the pressure plate
c)
the pressure plate retracts from the friction disc and disengages the friction disc from the flywheel
d)
a throw out bearing pulls the flywheel into contact with the pressure plate
14.
A gear is a ____.
a)
wheel with splines in the center
b)
disc- or cone-shaped object with teeth cut into its edge
c)
ball- or cone-shaped object that is smooth on all edges, allowing a channel to form
d)
ball-shaped object that is oil covered and moves in a channel to reduce friction
15.
A power take off shaft is ____.
a)
a connection point for an implement to be attached
b)
a special driveshaft that is used to drive the vehicle under heavy load conditions
c)
the shaft that holds the transmission’s high gear cluster
d)
connected directly to the pressure clutch assembly
16.
A belt drive system ____.
a)
can tolerate a large degree of misalignment
b)
relies on friction to transfer power between the drive belt and pulleys
c)
cannot be used to create mechanical advantage
d)
consists of a belt and two or more pulleys that rotate in opposite directions
17.
A driven pulley that is larger than the drive pulley ____.
a)
does not change speed or torque
b)
increases speed in the system
c)
increases horsepower in the system
d)
increases torque in the system
18.
A hydrostatic drive ____.
a)
wastes energy and frequently breaks down
b)
replaces the engine in some applications
c)
uses chemical reactions to transfer power
d)
replaces a traditional clutch and transmission
19.
Which of the following is not a PTO safety instruction?
a)
Shut off the power source when attaching equipment.
b)
Keep safety guards in place.
c)
Keep shafts free of dust.
d)
Ensure safety guards are in good condition.
100 %
