VERNIER HEIGHT GAUGE

1. In which pari of vernier height gauges is used for the datum
from which the measurement is taken?
A. The beam 
B. The vernier slide
C. The base 
D. Above the scriber point

2. In which part of a vernier height gauge on which the main
scale division are graduated?
A. Base 
B. Beam

C. Fine setting device      
D. The vernier plate

3. While Measuring large diameter, using vernier caliper the
relation ship between the diameter of job (D) width of the length
of jaws (a) should be_
A)a = 0.5D 
B)a = 0.4D
C)a = 0.2D 
D)a = 0.1D


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