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Worksheetsgear train
Total questions: 15
Worksheet time: 38mins
Name
Class
Date
1.
Find the gear ratio of the given simple gear train?
a)
5
b)
0.5
c)
4
d)
3
2.
In this gear train, the middle gear is considered an _______ gear
a)
Idler
b)
Input
c)
Output
3.
Which gear is the idler?
a)
A
b)
B
c)
C
d)
None of them
4.
The input gear has 6 teeth.
The output gear has 48 teeth. The gear ratio is...
a)
1:8
b)
8:1
c)
6:4
5.
What happens to speed
when you increase torque?
when you increase torque?
a)
Speed Increases
b)
Speed decreases
c)
Speed stays the same
6.
The purpose of the IDLER GEAR is to ____________.
a)
change the speed of rotation
b)
make the model harder to build
c)
add more gears for fun
d)
change the direction of rotation
7.
To INCREASE speed of rotation, you can ____________________.
a)
add more gears
b)
change from a LARGE gear to a SMALL gear
c)
turn the handle less times
d)
change from a SMALL gear to a LARGE gear
8.
If you need to move fast, then
use a smaller _______ gear.
a)
driven
b)
driving
c)
idler
d)
train
9.
Which gear is the drive (input)?
a)
A
b)
B
10.
Which gear train provides more torque?
a)
A
b)
B
11.
Which gear train would you use to ride up a hill?
a)
A
b)
B
12.
What is the best explanation for a gear train with a 7:1 gear ratio?
a)
The input gear turns 1 time for every 7 turns of the output gear.
b)
The input gear turns 7 times for 1 turn of the output gear.
13.
What do we call the gear connected to the input power source, such as a motor?
a)
Driven Gear
b)
Bigger Gear
c)
Smaller Gear
d)
Driving Gear
14.
What is the gear ratio with a driving gear with 40 teeth and a driven gear with 8 teeth?
a)
5
b)
1/5
c)
5/8
d)
8/5
15.
Engineers often pair little gears with big gears to
a)
Increase speed
b)
Increase torque
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