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

Answer: Option B

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

Answer: Option B

Explanation:

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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

Answer: Option C

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

Answer: Option C

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

Answer: Option C

Explanation:

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