Civil Engineering Questions And Answers :: Surveying: part1

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Civil Engineering : Surveying QUESTIONS AND ANSWERS :: part1 : 6 to 10

Following Civil Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2021 and IES 2021 examinations :

6.Normal tension is that pull which

is used at the time of standardising the tape
neutralizes the effect due to pull and sag
makes the correction due to sag equal to zero
makes the correction due to pull equal to zero

7.The correction for sag is

always additive
always subtractive
always zero
sometimes additive and sometimes subtractive

8.For a line AB

the forebearing of AB and back bearing of AB differ by 180�
the forebearing of AB and back bearing of BA differ by 180�
both (a) and (b) are correct.
none is correct

9.Cross staff is an instrument used for

measuring approximate horizontal angles
setting out right angles
measuring bearings of the lines
none of the above

10.Select the incorrect statement.

The true meridians at different places are parallel to each other.
The true meridian at any place is not variable.
The true meridians converge to a point in northern and southern hemispheres.
The maps prepared by national survey departments of any country are based on true meridians.

More Surveying QUESTIONS AND ANSWERS available in next pages

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