Mechanical Measurement and Metrology (3141901) MCQs

MCQs of Measurement of Screw Thread and Gear

Showing 1 to 10 out of 19 Questions
1 2
1.
The indicator that enables the application of a pressure already decided upon on the screw thread in a bench micrometer is called _________ .
(a) a fiducial indicator
(b) a pressure indicator
(c) a span indicator
(d) none of the above
Answer:

Option (a)

2.
In wire methods, the diameter of the wire selected should be such that it makes contact with the screw along the ______ .
(a) outer diameter
(b) pitch cylinder
(c) root diameter
(d) axis of the screw
Answer:

Option (b)

3.
In a two-wire method, the diameter of the best-size wire is given by _____.
(a) d = (p/2) sec (x/2)
(b) d = (p/4) sec (x/2)
(c) d = (p/2) cosec (x/2)
(d) d = (p/2) cot (x/2)
Answer:

Option (a)

4.
From the following, which one is not a method to find effective thread diameter?
(a) Thread micrometer
(b) Two wire method
(c) Three wire method
(d) The v-piece method
Answer:

Option (d)

5.
What is used to measure the major diameter of an external thread?
(a) Bench micrometer
(b) Thread micrometer
(c) One wire method
(d) All of the above
Answer:

Option (a)

6.
The involute profile of spur gear is limited to only up to the ______.
(a) root circle
(b) base circle
(c) pitch circle
(d) addendum circle
Answer:

Option (b)

7.
The angle between the line of action and the common tangent to the pitch circles is known as ______.
(a) flank angle
(b) tooth angle
(c) included angle
(d) pressure angle
Answer:

Option (d)

8.
The path traced by a point on a circle that is rolling on a straight line without slipping is _________.
(a) involute
(b) cycloid
(c) epicycloid
(d) hypocycloid
Answer:

Option (a)

9.
The tooth profile of mating gears is kept uniformly thinned, which results in a small play between mating tooth surfaces. This is called _____.
(a) backlash
(b) pitch correction
(c) lead correction
(d) none of these
Answer:

Option (a)

10.
In order to measure the chordal thickness of a gear using a gear caliper, the position of the blade is set to _____.
(a) the entire depth of the gear tooth
(b) addendum of the gear tooth
(c) dedendum of the gear tooth
(d) top surface of the gear tooth
Answer:

Option (b)

Showing 1 to 10 out of 19 Questions
1 2