SNS COLLEGE OF ENGINEERING
COIMBAT0RE – 641 407
OBJECTIVE TYPE QUESTIONS
ME2304 ENGINEERING METROLOGY AND MEASUREMENT
UNIT II: LINEAR AND ANGULAR MEASUREMENT
1. Universal surface gauge is used for
(a) Checking straightness
(b) Checking flatness
(c) Checking parallelism
(d) Layout work and inspection
2. According to Taylor’s principle, No Go gauge checks
(a) only one feature at a time
(b) only important dimensions at a time
(c) all the dimensions at a time
(d) only the related dimensions at a time
3. The number of slip gauges in a set are
(a) 87
(b) 45
(c) 103
(d) 31
(e) all of these
4. The advantages of vernier caliper over micrometer is that it
(a) is easier and quicker to use
(b) is more accurate
(c) can be used to make both inside and outside measurement over a range of sizes
(d) all of these
5. The following type of gauges has gauging sections combined on one end
(a) Combination gauge
(b) Limit gauge
(c) Go and No. Go gauge
(d) Progressive gauge
6. Most accurate instrument is
(a) Steel scale
(b) Micrometer screw gauge
(c) Vernier caliper
(d) Optical projector
7. Advantages of vernier caliper over micrometers is that it
(a) Is easier and quicker to use
(b) Is more accurate
(c) Can be used to make both inside and outside measurements over a range of sizes
(d) None of these
8. A comparator for its working depends on
(a) accurately calibrated scale
(b) comparison with standard such as slip gauges
(c) accurate micrometer gauge
(d) optical devices
9. The accessory of slip gauges is
(a) scribing and centre points
(b) measuring jaws
(c) holder
(d) base
(e) all of these
10. A protector in slip gauges is provided to
(a) protect slip gauges when not in use
(b) take up all the wear when in use
(c) clean the slip gauges
(d) facilitate wringing of slip gauges
11. The two slip gauges in precision measurement are jointed by
(a) assembling
(b) sliding
(c) adhesion
(d) wringing
12. It is desirable to handle the slip gauges with a cloth or chamois leather in order to
(a) Avoid injury to hands
(b) Protect the surfaces of slip gauges
(c) Insulate them from the heat of the hand
(d) None of these
13. Bevel protractor is used for
(a) Angular measurement
(b) Linear measurement
(c) Height measurement
(d) Flatness measurement
14. A comparator
(a) Needs to be calibrated
(b) Need not be calibrated
(c) Contains a calibrated scale
(d) Is highly accurate over its complete measuring range
15. The essential condition for inter – ferometry measurement is
(a) An air gap(a wedge) of varying thickness must exist between the two surfaces
(b) An optical flat is required
(c) Work surface must be reflective
(d) Monochromatic source of light is required
(e) All of these
16. A sine bar is specified by
(a) its total length
(b) centre distance between the two rollers
(c) size of the rollers
(d) weight of sine bar
17. The essential requirement for accuracy of measurement with a sine bar is
(a) flatness of upper surfaces
(b) equality of size and roundness of rollers
(c) exact distance between roller axes and mutual parallelism
(d) parallelism of rollers to upper surfaces and equality of axis distance as from surface
(e) all of these
18. In a sine bar the standard length is measured
(a) from edge to edge
(b) between inner circumferences of two rollers
(c) between outer circumferences of two rollers
(d) between the centres of two rollers
19. Accuracy of setting a sine bar
(a) decreases appreciably with steep angle
(b) is poor for small angles
(c) is maximum when angle of measurement is 45˚C
(d) none of these
20. All the thread characteristics can be measured precisely with
a) Screw pitch gauge
b) Micrometer with V-anvil
c) Tool room microscope
d) Thread gauge
21. The advantage of vernier caliper over micrometer is that it
a) Is easier and quicker to use
b) Is more accurate
c) Can be used to make both inside and outside measurements over a range of sizes
d) All of these
22. The following type of gauges has gauging sections combined on one end
a) Combination gauge
b) Limit gauge
c) GO and NO GO gauge
d) Progressive gauge
23. A comparator for its working depends on
a) Accurately calibrated scale
b) Comparison with standard such as slip gauges
c) Accurate micrometer gauge
d) Optical devices
24. Most accurate instrument is
a) Steel scale
b) Micrometer/Screw gauge
c) Vernier caliper
d) Optical projector
25. The accessory of slip gauge is
a) Scribing and centre points
b) Measuring jaws
c) Holder
d) Base
e) All of these
Solution:
1 (d) 2(a)
3(e)
4(c)
5(d)
6(d)
7(d)
8(b)
9(e)
10(b) 11(d) 12(c) 13(d)
14(a) 15(e) 16(b) 17(e) 18(d) 19(a) 20(c) 21(c) 22(d) 23(b) 24(d) 25(e)