M9

Question 1

A power screw is specified by:
A. Major diameter × pitch C. Mean diameter × pitch
B. Mean diameter × length D. Minor diameter × pitch

Answer 1

A

Question 2

Which of the following screw thread is used for jacks,
vices, and C-clamps?
A. Square threads C. Trapezoidal threads
B. Buttress threads D. Acme threads

Answer 2

A

Question 3

If the load itself begin to the screw and descend down,
unless a restraining torque is applied then the condition is
termed as:
A. Halting C. Overhauling
B. Front driving D. None of these

Answer 3

C

Question 4

A screw used for power transmission should have:
A. High efficiency C. Strong teeth
B. Low efficiency D. Very fine threads

Answer 4

A

Question 5

Which thread is more suited in power screw to take load
on both directions?
A. ACME thread C. Square thread
B. Buttress thread D. None of these

Answer 5

A

Question 6

Which of the following screw threads does not have a
symmetric section?
A. Buttress C. Square
B. Whitworth D. Acme

Answer 6

A

Question 7

The included angle in ACME threads is _____.
A. 60° C. 55°
B. 36° D. 29°

Answer 7

D

Question 8

Depending upon the holding arrangement, power screws
operate in these number of different arrangements.
A. 2 C. 4
B. 3 D. 5

Answer 8

A