197. Taylor's principle is cocerned with
A.Pneumatic comparators
B.Interferometric measurements
C.Gauging measurements
D.Angular measurements
198. Accuracy of setting a sine bar
A.Is poor for smaller angles
B.Is maximum when angle of measurement is 45?
C.Decreases appreciably with steep angle
D.Is dependent on accuracy of outer dimensions of sine bar
199. The radius of curvature of tube in precise spirit level is of the order of
A.10 cm
B.50 m.
C.1 m
D.10 cm
200. Profile of a gear tooth is to be checked. Which one of the following device would ? you choose
A.Optical pyrometer
B.Optical projector.
C.Sine bar
D.Telescopic gauge
201. Clinometer is an instrument concerned with
A.Temperature measurement
B.Angular measurement.
C.Linear measurement
D.Roundness measurement
202. Auto-collimator is used for measurement of
A.Small angular differences
B.Flatness
C.Linear surfaces
D.Concavity
203. Optical square is used in connection with
A.Alignment tests involving two surfaces at right angles
B.Measurement of flatness of surface.
C.Angular measurements
D.Circular division
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