Screw Gauge NEET Questions

Physics - Experimental Skills

Screw Gauge MCQ Questions


1.
What is the least count of a typical screw gauge with a pitch of 1 mm and 100 divisions on the circular scale?
A.
0.01 mm
B.
0.1 mm
C.
1 mm
D.
0.001 mm
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ANSWER :
A. 0.01 mm
2.
What is the function of the ratchet in a screw gauge?
A.
To lock the spindle
B.
To prevent over-tightening
C.
To measure internal diameter
D.
To calibrate the instrument
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ANSWER :
B. To prevent over-tightening
3.
Which error occurs if the zero of the circular scale does not coincide with the reference line when fully closed?
A.
Random error
B.
Zero error
C.
Parallax error
D.
Parallax error
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ANSWER :
B. Zero error
4.
How is the pitch of a screw gauge determined?
A.
By measuring a standard object
B.
By counting the number of divisions per revolution
C.
By taking multiple readings
D.
By using a secondary scale
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ANSWER :
B. By counting the number of divisions per revolution
5.
What is the least count of a standard screw gauge?

NEET - 2015

A.
0.01 mm
B.
0.1 mm
C.
0.5 mm
D.
1 mm
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ANSWER :
A. 0.01 mm
6.
Which formula is used to determine the least count of a screw gauge?
A.
Least count = (Pitch / No. of divisions)
B.
Least count = (Pitch × No. of divisions)
C.
Least count = (No. of divisions / Pitch)
D.
Least count = (Pitch × Circular scale divisions)
😑 View Answer Rough Work Error
ANSWER :
A. Least count = (Pitch / No. of divisions)