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Engineering - Civil Enginnering

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31.

If the lower clamp screw is tightened and upper clamp screw is loosened, the theodolite may be rotated

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

32.

If the magnetic bearing of the sun at a place at noon in southern hemisphere is 167°, the magnetic declination at that place is

A.	77° N	B.	23° S
C.	13° E	D.	13° W

33.

If the R.L. of a B.M. is 100.00 m, the back- sight is 1.215 m and the foresight is 1.870 m, the R.L. of the forward station is

A.	99.345 m	B.	100.345 m
C.	100.655m	D.	101.870m

34.

If the reduced bearing of a line AB is N60°W and length is 100 m, then the latitude and departure respectively of the line AB will be

A.	+50 m, +86.6 m	B.	+86.6 m, -50 m
C.	+50m, -86.6 m	D.	+70.7 m,-50 m

35.

If the staff is not held vertical at a level¬ling station, the reduced level calculated from the observation would be

A.	true R.L.	B.	more than true R.L.
C.	less than true R.L.	D.	none of the above

36.

If the true bearing of a line AB is 269° 30', then the azimuth of the line AB is

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

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