# Civil Engineering - UPSC Civil Service Exam Questions

36.

What is the permissible tensile stress is bolts used for column bases ?(Where fy is the yield stress of the steel)

 A. 120 N/mm2 B. 150 N/mm2 C. 0.6 fy D. 0.4 fy

Explanation:

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37.

King closers are related to

 A. doors and windows B. king post truss C. queen post truss D. bricks masonry

Explanation:

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38.

The area of a plot is to be determined using Simpson's rule. The following offsets were taken to a boundary from points along a chain line all measurements being in metres 12, 15, 22, 29, 36, 38, 31, 22, 17.There were taken at 100 m intervals.
Consider the following steps in this regard.
1.
2. Sum of the odd ordinates = 22 + 36 + 1 = 89
3. Sum of the even ordinates = 15 + 29 + 38 + 22 = 104
4. 12 + 17 = 39
5. Area = 100 (19.5 + 89 + 104)
6. Area = (39 + 2 x 89 + 4 x 104)
7. Area 100 x 19.5 (104 - 89)
The area of the plot can be determined by using the steps listed above :

 A. 1, 2, 3 and 5 B. 1, 3, 4 and 6 C. 1, 2, 4 and 7 D. 2, 3, 4 and 6

Explanation:

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39.

At a cross-section of a beam, the maximum compressive stress at top is 800 kg/cm2 and its maximum tensile stress at bottom is 200 kg/cm2. The depth of cross-section is 10 cm. The depth of the neutral axis from the top of the section is n. The n is equal to

 A. 2 cm B. 4 cm C. 6 cm D. 8 cm

Explanation:

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40.

A buttress in a wall is intended to provide

 A. lateral support to roof slab only B. lateral support to wall C. to resist vertical loads only D. lateral support to roof beams only