SSC JE Civil Engineering 25th Jan 2018 Shift-1

Instructions

For the following questions answer them individually

Question 121

Plumb bob lines at two different places in plane surveying are ___.

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Question 122

A curve whose radius varies from infinity to a certain value is called ____.

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Question 123

What is the representative fraction for a scale of 10 cm = 20 km?

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Question 124

The line which is used to collect the details of the objects in an area is called ___.

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Question 125

Calculate true bearing of a line, if magnetic bearing of the line is $$ S 60^\circ E $$ and magnetic declination is $$ 5^\circ $$ eastward.

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Question 126

Calculate the total correction (m) required, if a line measured using 20 m chain is 2380 m. Actual length of the chain is 20.2 m

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Question 127

The least count of a theodolite is ___.

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Question 128

Calculate the corrected staff reading at point A, if the staff reading is taken from an instrument which is set at a distance of 1.5 km from the point A 3.46 m.

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Question 129

Calculate the intersect angle (degree) for the anallactic telescope.

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Question 130

Which of the following statements are CORRECT for contour map?
1) Parallel contour shows uniform slope.
2) Very closed contour shows steep slope.
3) Very closed contour shows flat area.
4) Two contours at different elevation cut at right angle.

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