Fundamentals of Machine Design (3141907) MCQs

MCQs of Power Screws and Threaded Joints

Showing 1 to 10 out of 22 Questions
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1.
Power screws are used to convert rotary motion into translatory motion.
(a) True
(b) False
Answer:

Option (a)

2.
The major diameter of a screw thread is also known as core or root diameter.
(a) Yes
(b) No
Answer:

Option (b)

3.
The minor diameter of a screw thread is also known as outside or nominal diameter.
(a) Correct
(b) Incorrect
Answer:

Option (b)

4.
Which of the following has threads at both ends?
(a) Bolt
(b) Tap bolt
(c) Stud
(d) None of these
Answer:

Option (c)

5.
Which of the following statement is correct?
(a) The distance from a point on one thread to the corresponding point on the next thread is called pitch
(b) The distance which a screw thread advances axially in one rotation of the nut is called lead
(c) In single start threads, lead is equal to the pitch
(d) all of the above
Answer:

Option (d)

6.
Trapezoidal threads screws have less load carrying capacity as compared to square thread screws.
(a) True
(b) False
Answer:

Option (b)

7.
A bolt
(a) has a head on one end and a nut fitted to the other
(b) has to head at one end and other end fits into a tapped hole in the other part to be joined
(c) has both the ends threaded
(d) is provided with pointed threads
Answer:

Option (a)

8.
A bolt of M24 x 2 means that
(a) the pitch of the thread is 24 mm and depth is 2 mm
(b) the cross-sectional area of the threads is 24 mm2
(c) the nominal diameter of the bolt is 24 mm and pitch is 2 mm
(d) the effective diameter of the bolt is 24 mm and there are 2 threads per cm
Answer:

Option (c)

9.
In threaded part M10 x 1.25, 1.25 indicates
(a) pitch
(b) lead
(c) nominal diameter
(d) none of the mentioned
Answer:

Option (a)

10.
If the nominal diameter of screw thread = 50mm and pitch = 10mm then the mean diameter of the screw thread will be?
(a) 40 mm
(b) 45 mm
(c) 60 mm
(d) 55 mm
Answer:

Option (b)

Showing 1 to 10 out of 22 Questions
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