Category: Surveying

A. the length of telescope
B. the diameter of vertical circle
C. the diameter of lower plate
D. the diameter of upper plate

A. concave
B. convex
C. plano-convex
D. plano-concave

A. straightening the links
B. removing one or more small circular rings
C. closing the joints of the rings if opened out
D. all of the above

A. increase
B. decrease
C. not change
D. either ‘a’ or ‘b’

A. always additive
B. always subtractive
C. always zero
D. sometimes additive and sometimes subtractive

A. NE quadrant
B. SE quadrant
C. NW quadrant
D. SW quadrant

A. 7.5 m
B. 25 m
C. 50
D. 75 m

A. on its outer spindle with a relative motion between the vernier and graduated scale of lower plate
B. on its outer spindle without a relative motion between the vernier and gra-duated scale of lower plate
C. on its inner spindle with a relative motion between the vernier and the graduated scale of lower plate
D. on its inner spindle without a relative motion between the vernier and the graduated scale of lower plate

A. 0° 30′
B. 89° 30′
C. 90° 30′
D. 269° 30′

A. Contour interval on any map is kept constant
B. Direct method of contouring is cheap¬er than indirect method
C. Inter-visibility of points on a contour map cannot be ascertained
D. Slope of a hill cannot be determined with the help of contours