120. The standard tolerance unit is equal to
A.0.45 (3-V5) + 0.001D
B.0.45 (3V5) + 0.001D
C.0.45 (3Arg) + 0.01D
D.0.45 (4To) + 0.01D
121. Eden-Roll comparator is a popular inqmment for the
A.Calibration of slip gauges
B.Absolute measurement of length of slip gauges
C.Measurement of flatness
D.Measurement of angles
122. 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.Ensure that the varnish applied on gauges does not come out
123. For grade IT 7, value-of tolerance is equal to
A.7 i
B.10 i
C.16i
D.25 i
124. For defming length the standard generally followed is
A.Bar standard
B.End standard
C.Light wave standard
D.Any of the above
125. Planer gauge is used for
A.Testing flatness of surface
B.Adding to utility of measurements on surface plate
C.Angular measurement
D.Testing radius of corners
126. IS specifications specify vernier calipers as type A, B and C. This classification is based on
A.Accuracy
B.Least count
C.Range
D.Internal or external measurement and for marking purpose
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