Mechanical Measurement and Metrology (3141901) MCQs

MCQs of System of Limits, Fits, Tolerance and Gauging

Showing 21 to 30 out of 69 Questions
1 2 3 4 5 6
21.
What is the actual deviation?
(a) Algebraic sum between actual size and corresponding basic size
(b) Algebraic difference between the actual and corresponding basic size
(c) Average of actual and basic size
(d) Algebraic difference between upper and lower deviation
Answer:

Option (b)

22.
What does ES represent in terminology as per IS: 919?
(a) Lower deviation of hole
(b) Upper deviation of shaft
(c) Lower deviation of shaft
(d) Upper deviation of hole
Answer:

Option (d)

23.
What is ‘IT’ in systems of fits?
(a) The basic size of hole
(b) The basic size of shaft
(c) Tolerance grade
(d) Standard tolerance factor
Answer:

Option (c)

24.
What is the color of the band at ‘no go’ side of plain gauges?
(a) Red
(b) Blue
(c) Green
(d) Yellow
Answer:

Option (a)

25.
Which principle is related to Gauge design?
(a) Rankin principle
(b) Position principle
(c) Taylor’s principle
(d) Carnot Principle
Answer:

Option (c)

26.
What is the effect of wear on the size of ‘Go’ snap gauges?
(a) Decrease
(b) Increase
(c) May increase or decrease
(d) No effect
Answer:

Option (b)

27.
What is the use of ‘No Go’ gauges?
(a) Check a single element of a feature
(b) Check several dimensions simultaneously
(c) Check roundness and size at the same time
(d) Check location and size at the same time
Answer:

Option (a)

28.
Which of the following taper is used for ‘shanks of the twist drills’?
(a) Morse taper
(b) Brown taper
(c) Sharpe taper
(d) Jarno taper
Answer:

Option (a)

29.
What is the importance of the valley on an irregular surface?
(a) Reduce metal to metal contact
(b) Retain film of lubricating oil
(c) Reduce stress concentration
(d) Improve surface texture
Answer:

Option (b)

30.
Which of the following option is true if hills and valleys on any surface are very close?
(a) Wavelength is more
(b) Wavelength is small
(c) The surface appears more wavy
(d) The surface appears rough but the wavelength is more
Answer:

Option (b)

Showing 21 to 30 out of 69 Questions
1 2 3 4 5 6