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ISRO CE Quiz 1- Surveying

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Question 1

Two straight lines intersect such that deflection angle of 60 °. The radius of a curve joining the two straight lines is 600m. The length of long chord and mid-ordinates in metres of the curve are

Question 2

Two triangular wedges are glued together as shown in the following figure. The stress acting normal to the interface, σ_n is _____ MPa.

Question 3

For night travel, the length of a valley curve should be such that, the head-light beam distance is the same as

Question 4

Bowditch’s rule is applied to :

Question 5

The following observations were made of an axle-load survey on a road
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The standard axle load is 80kN. Equivalent daily number of repetitions for the standard axle - load are

Question 6

A bench mark has been established at the soffit of an ornamental arch at the known elevation of 100.0 m above mean sea level. The back sight used to establish height of instrument is an inverted staff reading of 2.105 m. A forward sight reading with normally held staff of 1.105 m is taken on a recently constructed plinth. The elevation of the plinth is

Question 7

At a horizontal curve portion of a 4 lane undivided carriageway, a transition curve is to be introduced to attain required superelevation. The design speed is 60 kmph and radius of the curve is 245 m. Assume length of wheel base of a longest vehicle as 6 m, superelevation rate as 5% and rate of introduction of this superelevation as 1 in 150. The length of the transition curve (m) required, if the pavement is rotated about inner edge is

Question 8

If an angle is measured with a standard deviation of ±3", then the most probable error is _________ seconds.

Question 9

The magnetic bearing of a line was N 60 °30' W when the declination was 5 °E. The magnetic bearing of line, If declination has changed to 3 °W, is

Question 10

Measurement of a line was taken ten times with a steel tape and found to be as under 100.54 m, 100.56 m, 100.38 m, 100.36 m, 100.39 m, 100.46 m, 100.48 m, 100.32 m, 100.47 m, 100.52 m
Assuming that the measurements have been corrected for all systematic errors, then the standard deviation of the mean is ______cm.

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ESE & GATE CE Surveying

Jul 25ESE & GATE CE