In a perfect prismatic compass______. - Surveying Quiz

Civil Engineering : Surveying - Quiz(MCQ)

In a perfect prismatic compass______.

A)

needle is always kept sensitive

B)

magnetic axis and geometric axis of the needle coincide

C)

ends of the needle and pivot are in same vertical and horizontal planes

D)

All of the above

Correct Answer : All of the above

Explanation : * needle is always kept sensitive
* magnetic axis and geometric axis of the needle coincide
* ends of the needle and pivot are in same vertical and horizontal planes
* pivot is vertically over the centre of the graduated circle

Recently Updated in Surveying Questions

A sewer is laid from a manhole A to a manhole B, 250 m away along a gradient of 1 in 125. If the reduced level of the invert at A is 205.75 m and the height of the boning rod is 3 m, the reduced level of the sight rail at B, is_______.

A)

202.75 m

B)

206.75 m

C)

208.75 m

D)

211.75 m

Correct Answer : Option (B) : 206.75 m

In a closed traverse, sum of south latitudes exceeds the sum of north latitudes and the sum of east departures exceeds the sum of west departures, then, the closing line will lie in

A)

north east quadrant

B)

north-west quadrant

C)

south-west quadrant

D)

south-east quadrant

Correct Answer : Option (B) : north-west quadrant

The Huygen's telescope eye piece________.

A)

achromatic

B)

is aplanatic

C)

Both (A) and (B)

D)

Neither (A) nor (B)

Correct Answer : Option (C) : Both (A) and (B)

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