# Civil Engineering - UPSC Civil Service Exam Questions

21.

The three-point problem in hydrographic surveying considers the data on the location of three shore signals A, B and C and the angles α and β subtended by AP, BP and CP at the boat P; and then proceeds to plot the position of P. The problem may become indeterminate is special cases when

 A. B and P are on opposite sides of the line AC B. both B and P are on the same side of the line AC C. P is within the triangle ABC D. P is very close to the extension of one of the edges of the triangle ABC

Explanation:

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22.

Horizontal stiffeners are needed in plate girders if the thickness of web is(where d = distance between the flanges and L = span)

 A. < 6 mm B. < d/200 C. < L/500 D. nearly equal to flange thickness

Explanation:

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23.

What is the full width of the land aquired before finalizing highway alignment, known as ?

 A. width of formation B. right of way C. Carriage way D. Roadway

Explanation:

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24.

What is the superelevation for a horizontal highway curve of radius 500 m and speed 100 kmph in mixed traffic condition ?

 A. 8.9% B. 6.2% C. 0% D. 1%

Explanation:

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25.

Which one of the following is a compression member ?

 A. Purlin B. Boom C. Girt D. Tie