WorksheetsGearsQuiz
Total questions: 54
Worksheet time: 13hrs 1mins
Transfers motion between two shafts running parallel to each other. They are characterized by their teeth, which are straight and parallel to the gears axis of rotation.
Spur Gear
Worm Gear
Bevel Gear
Crown Gear
Conically shaped gears that transmit power between shafts that have intersecting axes of rotation.
Spur Gear
Bevel Gear
Rack Gear
Crown Gear
A gear mounted to a straight rod, such that it moves in a linear fashion when torque is applied to it by a spur gear (known as the pinion gear).
Spur Gear
Crown Gear
Bevel Gear
Rack Gear
The relationship between the numbers of teeth on two meshing gears used to transmit motion. It reflects the change in mechanical advantage resulting from the gears.
Gear pitch
Tooth decay
Gear ratio
aspect pitch
____________ gears come in pairs that mate together to transfer power between perpendicular shafts that have axes of rotation offset from one another. These gears resemble screws; as they spin they turn their mating wheel.
Spur gears
Bevel Gears
Crown Gears
Worm gears
What does a gear ratio describe?
how many rotations the driven gear makes compared to the drive gear
How many drive gears there are in a gear train
What's the ratio?
Make sure ratio is reduced
1:1
84 : 60
60 : 36
5 : 3
When gears are equal in size, what is the gear ratio?
There is no gear ratio when sizes are equal
1:3
2:5
1:1
No mechanical advantage
When you have a system with a driving gear that is _______ than the driven gear you will increase torque and decrease speed.
smaller
bigger
same size
thicker
If two gear wheels are mounted on a common shaft then it's a ________ Gear Train.
Common
Compound
Complying
Shafting
Will a drive gear with 10 teeth and a driven gear of 35 teeth produce more torque or speed?
More speed
More torque
More speed and torque
All of these answers
What is the gear ratio with a driving gear with 40 teeth and a driven gear with 8 teeth?
5
1/5
5/8
8/5
The output gear has 48 teeth. The gear ratio is...
Double Helical Gear
Spiral Bevel Gear
Internal Gear
Spur Gear
Spur Gear
Internal Gear
Miter Gear
Double Helical Gear
Rack & Pinion Gear
Worm Gear
Miter Gear
Double Helical Gear
Rotational Gear
Planetary Gear
Rack & Pinion Gear
Multi-Gear
Internal Gear
Spur Gear
Miter Gear
Double Helical Gear
If "Gear A" is the Driver Gear then what would "Gear D" be?
Driver
Idler
Extended
Driven
Which gear is the Idler Gear?
A
B
C
None of them
Find the gear ratio of the given simple gear train? A is the input gear.
5:1
0.5:1
4:1
3:1
Which gear is the idler?
A
B
C
None of them
If you need to move fast, then
use a smaller _______ gear and a larger________ gear.
driver : driven
driven : driver
idler : input
gear train
How do you determine the ratio between two gears?
# of teeth of input gear/# of teeth of input gear
# of teeth of input gear/# of teeth of output gear
# of teeth of output gear/# of teeth of input gear
# of teeth of output gear/# of teeth of output gear
True or False: Two meshed gears always rotate in opposite directions
True
False
A larger wheel of radius 40cm has a moment of 160Nm and is being driven by a smaller wheel of 20cm radius. What is the moment about the smaller wheel?
20 Nm
40 Nm
80 Nm
10 Nm
Based on the Picture: WHICH Gear System (A, B, C, or D) would have Gear 1 turn 1 time and its connected Gear 2 turn 3 times/turns?
A
B
C
D
None of the Gear Systems
A simple gear train is composed of three gears. Gear A is the driver and has 84 teeth, bear B has 60 teeth, and gear c has 42 teeth. If gear C rotates at 60 rpm, how fast is gear a rotating?
120 rpm
30 rpm
60 rpm
90 rpm
A simple gear train is composed of three gears. Gear A is the driver and has 84 teeth, bear B has 60 teeth, and gear c has 42 teeth. If the output at gear C is 1200 ft. lb, what is the input torque at gear A?
600 ft lb
1200ft lb
1800 ft lb
2400 ft lb
A simple gear train is composed of three gears. Gear A is the driver and has 84 teeth, bear B has 60 teeth, and gear c has 20 teeth. If the output is gear C, what is the gear ratio?
75
13
215
What input / output motion goes in a straight direction?
Reciprocating
Ocsilating
Rotary
Linear
What is torque?
is a push or pull in a circular direction
The force used in cars / vehicles when going up steep terain
A linear push or pull
The measurment of the weight of an object
Which of these gear mechanisms is a worm and wheel?
What type of input motion is used in this mechanism?
rotary
linear
reciprocating
oscillating
If the drive gear has 100 teeth and the driven gear has 10 teeth, how much faster or slower will the driven gear spin?
10 times slower
100 times slower
10 times faster
100 times faster
Power is transferred between an electric motor and a pump with a two gear drive. Calculate the required number of teeth on a driven gear if the driven shaft must rotate at 1765 r/min. The driving gear is installed directly on the motor shaft and has 30 teeth. The motor plate indicates a nominal speed of 1000 r/min.
30 teeth
15 teeth
17 teeth
54 teeth
If a driving gear has 24 teeth and a driven gear has 72 teeth, what happens to the torque of the driven gear?
The torque of the driven gear will decrease.
The torque of the driven gear will remain the same.
The torque of the driven gear will increase.
The torque of the driven gear will fluctuate.
What is the gear ratio of this compound gear train?
3:8
8:3
1/4
3/8
1:4
What symbol is used for torque?
Ω
ω
ϕ
τ
What term is common for angular velocity in America?
RPM
MPH
MPG
Radians per second
What symbol do we use for angular velocity?
Ω
ω
ϕ
τ
If you have a DRIVER gear that has 7 teeth driving a DRIVEN gear that has 21 teeth, what is the gear ratio?
3:1
1:3
3:4
4:3
2:3
Which gear ratio will produce higher torque?
100:1
1:100
1:50
200:50
The higher the numeric ratio, the...
Faster the speed
Higher the torque
The lower the numeric ratio, the...
Faster the speed
Higher the torque
____ gears are used to transfer drive on a 90 degrees angle.
Bevel
Rack and pinion
Worm
Compound
The teeth of ______ Gears are cut at an angle for smoother transition
Rack and Pinion
spur
Bevel
Helical
