SSC JE Civil Engineering 2nd March 2017 Shift-2

Instructions

For the following questions answer them individually

Question 21

- If h is the difference in height between end points of a chain of length l the required slope correction is _____

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Question 22

Correction per chain length of 100 links along a slope of $$ \alpha $$ radians is _____

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Question 23

Check lines (or proof lines) in Chain Surveying are essentially required

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Question 24

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

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Question 25

The conventional sign shown in the figure below represents a.

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Question 26

In an adjusted level when the bubble is central, the axis of the bubble tube becomes parallel to _____

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Question 27

An internal focusing type surveying telescope may be focused by the movement of _____.

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Question 28

A dumpy level is set up with its eye-piece vertically over a peg A. The height from the top of peg A to the center of the eye-piece is 1.540 m and the reading on peg B is 0.705 m. The level is then setup over B. The height of the eye-piece above peg B is 1.490 m and a reading on A is 2.195 m. The difference in level between A and B is

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Question 29

The constant vertical distance between two adjacent contours is called

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Question 30

The direction of steepest slope on a contour is _____.

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