# Civil Engineering - UPSC Civil Service Exam Questions

46.

A steel rod of 16 irim diameter has been used as a tie in a bracing system, but may subject to possible reversal of stress due to the wind. What is the maximum permitted length of the member ?

 A. 1600 mm B. 1400 mm C. 1200 mm D. 1000 mm

Explanation:

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47.

The total number, of independent equations that form the Lacey's regime theory is

 A. 2 B. 3 C. 4 D. 6

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48.

The following methods are used for structural analysis :
1. Macaulay method
2. Column analogy method
3. Kani's method
4. Method of sections
Those used for indeterminate structural analysis would include

 A. 1 and 2 B. 1 and 3 C. 2 and 3 D. 2, 3 and 4

Explanation:

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49.

In the case of S2 water surface profile (y = depth of flow, y0 = normal depth, yc = critical depth)

 A. y0 > yc > y B. yc > y0 > y C. yc > y > y0 D. y > yc > y0

Explanation:

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50.

A summit vertical curve is to be set joining + 2 percent grade with -3 percent grade. If the tangents interest at an elevation of 60 m and the rate of change of grade is - 1 percent per 100 m, then the elevation of the beginning point of the vertical curve will be

 A. 58.5 m B. 57.5 m C. 55.0 m D. 52.5 m