# Civil Engineering - UPSC Civil Service Exam Questions

46.

A truss ABC, carries two horizontal and two vertical loads, as shown in the figure. The horizontal and vertical components of the reaction at A will be A. HA = 1000 kN ; VA = 1706.25 kN B. HA = 2000 kN ; VA = 2550 kN C. HA = 1000 kN ; VA = 2550 kN D. HA = 2000 kN ; VA = 1706.25 kN

Explanation:

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47.

Contour interval on a map sheet denotes

 A. vertical distance of contour lines above the datum plane B. vertical distance between two successive contour lines C. slope distance between two successive contour lines D. horizontal distance between two successive contour lines

Explanation:

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48.

Which one of the following is the correct statement ? A particle in simple harmonic motion while passing through the mean position will have

 A. minimum kinetic energy and minimum potential energy B. maximum kinetic energy and maximum potential energy C. maximum potential energy and minimum kinetic energy D. maximum kinetic energy and minimum potential energy

Explanation:

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49.

What are the phenomena of global warming and acid rain formation attributed to ?

 A. SO2 and CO2 respectively B. CO and SO2, respectively C. CO2 and SO2, respectively D. CO and CO2, respectively

Explanation:

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50.

The following observation relate to designing of laced column :
1. Single lacing systems on opposite planes shall preferably be in the same direction so that one is the shadow of the other.
2. Lacing bar should only be a flat.
3. The slenderness ratio of the lacing bars for compression shall not exceed 180.
4. Laced compression members are to be provided with tie plates of ends.
Of these observations :

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