MULTIPLE CHOICE QUESTIONS (MCQ) WITH ANSWERS ON MECHANICAL MEASUREMENT AND METROLOGY

1-The degree of closeness of the measured value of a certain quantity with its true value is known as

1. Accuracy
2. Precision
3. Standard
4. Sensitivity

(Ans: a)

2-Error of measurement =

1. True value – Measured value
2. Precision – True value
3. Measured value – Precision
4. None of the above

(Ans: a)

3-The ability by which a measuring device can detect small differences in the quantity being measured by it, is called its

1. Damping
2. Sensitivity
3. Accuracy
4. None of the above

(Ans: b)

4-The following term(s) is (are) associated with measuring devices

1. Sensitivity
2. Damping
3. Both ‘a’ and ‘b’
4. None of the above

(Ans: c)

5-To compare an unknown with a standard through a calibrated system is called

1. Direct comparison
2. Indirect comparison
3. both ‘a’ and ‘b’
4. None of the above

(Ans: b)

6-The following is an internationally recognized and accepted unit system

1. MKS
2. FPS
3. SI
4. All of the above

(Ans: c)

7-One yard = _____ inch

1. 36
2. 38
3. 40
4. 42

(Ans: a)

8-The following is a line standard of measurement

1. Measuring tape
2. Slip gauge
3. Micrometer
4. End bars

(Ans: a)

9-The ‘Wringing’ is due to

1. Atmospheric pressure
2. Molecular attraction
3. both ‘a’ and ‘b’
4. None of the above

(Ans: c)

10-The angle gauge by Dr. Tamlison consists of a set of

1. 10 gauges
2. 12 gauges
3. 14 gauges
4. 16 gauges

(Ans: a)

11-1 Angstrom (Å) = _____

1. 10^-6m
2. 10^-8m
3. 10^-10m
4. 10^-12m

(Ans: c)

12-The principle of ‘Interchangeability’ is normally employed for

1. Mass production
2. Production of identical parts
3. Parts within the prescribed limits of sizes
4. All of the above

(Ans: d)

13-Following is the theoretical size which is common to both the parts of a mating pair

1. Normal size
2. Actual size
3. Base size
4. All of the above

(Ans: c)

14-_____ is equal to the differences of the two limits of size of the part

1. Tolerance
2. Low limit
3. High limit
4. Design size

(Ans: a)

15-The amount by which the actual size of a shaft is less than the actual size of mating hole in an assembly

1. Clearance
2. Interference
3. Allowance
4. None of the above

(Ans: a)

16-A positive allowance will always result in a _____ fit.

1. Clearance
2. Interference
3. both ‘a’ and ‘b’
4. Any of the above

(Ans: a)

17-A negative allowance will always result in a _____ fit.

1. Clearance
2. Interference
3. Transition
4. Any of the above

(Ans: b)

18-A shaft rotating in a bushed bearing is good example of

1. Sliding fit
2. Running fit
3. Push fit
4. Driving fit

(Ans: b)

19-Fitting of rim on a locomotive wheel is done by

1. Keying fit
2. Driving fit
3. Force fir
4. Any of the above

(Ans: c)