Question

A micrometer screw gauge with pitch of 0.6 mm and 50 divinions on circular scale in
used to measure the diameter of a thin wire. Initially when the gap is closed the line
of fourth division coincides with the reference line, Three readings show 46th, 48th
and 44th division coinciding with the reference line which is beyond 0.5 mm of the
main scale. The (best) measured value is
INSEP. 2013-141
A) 0.16 mm
B) 0.94 mm
C) 0.92 mm
D) 1.00 mm
The circular scale of scrow gauge has 50 divisions and the pitch ia 0.5 mm. Find the​

Answer 1

Answer:

0.8mm

Step-by-step explanation:

ANSWER

LC=

circular scale divisions

pitch

=

50

0.5

mm=0.01mm

Negative zero error = −5×(0.01)mm=−0.05mm

Measured value = 0.5mm+25×0.01–(–0.05)mm=0.8mm