A.MICROMETER FRAME MADE OF
1.CAST IRON. 2.MALLABLE CI
3.GREY C.I. 4.WHITE C.I
B.what is the least count of a metric
micrometer
1.0.01MM. 2.0.001MM
3.0.05. 4.0.0001MM
C.For removing zerro error which
spanner is used
1.open end spanner
2.close end spanner
3.tubular spanner
4.C spanner
D.Which is used to check zerro error
1.sleeve. 2.test pieces
3.ratchet stop. 3.C spannerE.Working principle of micrometer
1.screw and nut. 2.thread and bolt
3.pitch and nut
4.t.s.d and m.s.d
F.How many clicks of ratched stop are
normally suffcient for realise
tightening
1.1 click. 2.3 clicks
3.2 clicks. 4.7 clicks
G.Ratchet stop in the micrometer
helps to
1.adjust zerro error
2.lock the spindle
3.hold workpieces
4.control the preassure
H.The base unit of length as per S.I1.inch. 2.foot. 3.metere
4.centimetre
I.In metric micrometer a complete a
revolution of thimble advances
1.0.50mm. 2.0.01mm
3.1.00mm. 3.0.25mm
J.The least count of a british
micrometer
1.0.01inch 2.0.001inch
3.0.05inch. 3.0.005inch
K.An outside micrometer has a
negative error.the correct reading can
be taken by
1.adding negative error in actual
reading
2.deducting negative error from actual
reading
3.adding twice negative error in theactual reading
4.deducting twice negative error from
actual reading
L.what is the zerro reading of a 50-75
mm outside micrometer
1.0.00mm. 2.0.01mm
3.25.00mm 4.50.00mm
M.The minimum measurement that
can be measured by a micrometer
called
1.zerro reading. 2.m.s.r
3.least count
4.minus zerro error
N.Metric outside micrometer has a
threaded spindle with a pitch of
1.0.25mm. 2.1.00mm
3.1.50.mm. 4.0.5mm