Screw Gauge NEET Questions

Physics - Experimental Skills

Screw Gauge MCQ Questions


7.
Who invented the screw gauge (micrometer)?
A.
Galileo Galilei
B.
Pierre Vernier
C.
William Gascoigne
D.
Isaac Newton
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ANSWER :
C. William Gascoigne
8.
The two scales used in a screw gauge are:
A.
Main scale and vernier scale
B.
Coarse scale and fine scale
C.
Pitch scale (main scale) and circular (head) scale
D.
Linear scale and decimal scale
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ANSWER :
C. Pitch scale (main scale) and circular (head) scale
9.
The thimble of a screw gauge carries the:
A.
Circular scale
B.
Pitch scale
C.
Main scale
D.
Vernier scale
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ANSWER :
A. Circular scale
10.
The ratchet arrangement in a screw gauge is provided to:
A.
Decrease the pitch
B.
Magnify the reading
C.
Apply uniform pressure on the object being measured
D.
Increase the least count
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ANSWER :
C. Apply uniform pressure on the object being measured
11.
If a screw gauge advances by 1 mm in 2 complete rotations of the thimble, the pitch is:
A.
2 mm
B.
1 mm
C.
0.25 mm
D.
0.5 mm
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ANSWER :
D. 0.5 mm
12.
A screw gauge has a pitch of 1 mm and 100 divisions on its circular scale. Its least count is:
A.
1 mm
B.
0.001 mm
C.
0.1 mm
D.
0.01 mm
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ANSWER :
D. 0.01 mm