# Civil Engineering - Surveying

### Exercise :: Surveying - Section 5

1.

The ratio of the distances at which a stated length can be distinguished by the telescope and the human eye, respectively, is called

 A. brightness of telescope B. magnification of telescope C. resolving power of telescope D. none of these.

Explanation:

No answer description available for this question. Let us discuss.

2.

Bergchrund is a topograhical feature in

 A. plains B. water bodies C. hills D. glaciated region

Explanation:

No answer description available for this question. Let us discuss.

3.

To orient a plane table at a point P roughly south of the mid-point of two inaccessible conical hill stations A and B in the plains, a point C is selected in line with AB and table is oriented at C by bringing ab in line with AB. A ray is then drawn towards P and at P the table is oriented by back ray method. The orientation so obtained, is

 A. unique and correct B. incorrect C. manifold and correct D. not reliable.

Explanation:

No answer description available for this question. Let us discuss.

4.

Which one of the following statements is correct ?

 A. when the axes of rotation of the graduated circle and the verniers are not coincident, the instrument possesses eccentricity B. the mean of the readings of the two verniers gives correct reading free from the eccentricity C. one vernier may be used if the readings of two verniers differ by a constant D. all the above.

Explanation:

No answer description available for this question. Let us discuss.

5.

Pick up the correct statement from the following

 A. 1 second of arc corresponds to a displacement ratio of 1:206, 300 B. 1 degree of arc corresponds to a displacement ratio of 1:57 C. the angular errors tend to propagate themselves along a traverse as the square root of the number of stations D. the errors arising from the linear measures tend to be roughly proportional to the lengths of the lines E. all the above.