Civil Engineering - Surveying

6. 

The method generally preferred to for contouring an undulating area, is

A. chain surveying
B. plane table surveying
C. tacheometrical surveying
D. compass surveying.

Answer: Option C

Explanation:

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7. 

If the declination of the needle is 10° W

A. each of the whole circle reckoning has to be micros by 10°
B. in the quadrantal method, the correction is positive in the 1st and 3rd quadrants
C. in the quadrantal method, the corrections is negative in 2nd and 4th quadrants
D. all the above.

Answer: Option D

Explanation:

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8. 

A level when set up 25 m from peg A and 50 m from peg B reads 2.847 on a staff held on A and 3.462 on a staff held on B, keeping bubble at its centre while reading. If the reduced levels of A and B are 283.665 m and 284.295 m respectively, the collimation error per 100 m is

A. 0.015 m
B. 0.030 m
C. 0.045 m
D. 0.060 m

Answer: Option D

Explanation:

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9. 

For taking offsets with an optical square on the right hand side of the chain line, it is held

A. by right hand upside down
B. by left hand upright
C. by right hand upright
D. by left hand up side down.

Answer: Option B

Explanation:

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10. 

If the whole circle bearing of a line is 270°, its reduced bearing is

A. N 90° W
B. S 90° W
C. W 90°
D. 90° W.

Answer: Option C

Explanation:

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