SHAFT, KEY, AND KEYWAY

Question 1

A machine element that transmits
torque and power.
a. Pulley
b. Bearing
c. Shaft
d. None of the above

Answer 1

SHAFT

Question 2

The factor that affects the
horsepower requirement of a shaft.
a. Torque
b. Rpm shaft
c. Peripheral velocity of shaft
d. All of the above

Answer 2

AOTA

Question 3

If two shafts are perpendicular with
each other, what type of drive system
would you recommend?

Answer 3

Flat belt

Question 4

In a design of drive shaft assembly
the weakest part should be the ____.
a. Shaft
b. Hub
c. Key
d. Keyway
e. None of the above

Answer 4

KEY

Question 5

Rule of thumb for the length of keyway
based on the diameter of the shaft.
a. 1.5 the diameter
b. 2.0 the diameter
c. 2.5 the diameter
d. None of the above

Answer 5

1.5 the diameter

Question 6

A machine element used to fasten shaft
pulleys and gear hubs together.
a. Bolt
b. Springs
c. Keys
d. None of the above

Answer 6

Keys

Question 7

A grove that is placed on a shaft to
prevent the pulley from slippage.
a. Keyway
b. Keyhole
c. Key
d. None of the above

Answer 7

Keyway

Question 8

A type of key applicable for slidingtype shaft and hub assembly.
a. Parallel key
b. Woodruff key
c. Taper key
d. All of the above

Answer 8

Parallel key

Question 9

A type of key applicable for an
assembly in which the hub is fastened to
the shaft or an assembly in which the key is
driven between the shaft and the hub.
a. Parallel key
b. Woodruff key
c. Taper key
d. All of the above

Answer 9

AOTA

Question 10

Rule of thumb for the width of keyway
based on the diameter of shaft.
a. ¼ the diameter
b. ½ the diameter
c. ¾ the diameter
d. None of the above

Answer 10

¼ the diameter

Question 11

Rule of thumb for the depth of keyway
based on the diameter.
a. 1/8 the diameter
b. 1/4 the diameter
c. ½ the diameter
d. None of the above

Answer 11

1/8 the diameter

Question 12

The recommended key cross-section
for shaft below 5.5 in. is ___.
a. square
b. rectangular
c. triangular
d. None of the above

Answer 12

square

Question 13

The recommended key cross section
for shaft above 5.5 in. is ___.
a. square
b. rectangular
c. triangular
d. None of the above

Answer 13

rectangular

Question 14

A shaft with varying diameter along its
length.
a. Main shaft
b. Line shaft
c. Stepper shaft
d. None of the above

Answer 14

Stepper shaft

Question 15

The shaft diameter is 30 mm. As an
Agricultural Engineer, what size of square
keyway would you recommend?
a. 5 mm
b. 7.5 mm
c. 10 mm
d. 12.5
e. None of the above

Answer 15

7.5 mm

Question 16

All rotating parts of agricultural
machines, as prescribed in the PAE
Standards, should be ___.
a. rigid
b. dynamically balanced
c. uniform in speed
d. None of the above

Answer 16

dynamically balanced

Question 17

Commonly used tool in removing
hub from a shaft.
a. Hammer and cold chisel
b. Vise grip
c. Puller
d. None of the above

Answer 17

Puller

Question 18

Reasons why a pulley is difficult to
remove from a shaft.
a. Rusted shaft
b. Fatigue failure
c. Deformed shaft
d. All of the above
e. None of the above

Answer 18

All of the above