# Civil Engineering - UPSC Civil Service Exam Questions

16.

If the mean temperature of Sun's surface 6000 K and λm of its radiation is 0.5 what is the mean temperature of earth surface for which λm is 10.0 μm, according to Wien's Displacement Law in Remote Seniror Concept ?

 A. 25 °C B. 28 °C C. 27 °C D. 30 °C

Explanation:

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17.

The deflection at the free end of a cantilever subjected to a couple M at its free end and having a uniform flexural rigidity EI throughout its length 'L' is equal to

 A. B. C. D.

Explanation:

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18.

A compression member has a centre to centre length of 4.0 m. It is fixed at one end and hinged at the other end. The effective length of the column is

 A. 4.0 m B. 3.2 m C. 2.8 m D. 2.6 m

Explanation:

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19.

An image of the top of the hill is 96 mm from the principal point of the photograph. The elevation of the top of the hill is 500 m and flying height is 4000 m above the detum. The relief displacement will be

 A. 768 mm B. 88 mm C. 12 M D. 8 mm

Explanation:

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20.

If the curve lead of a broad gauge railway turnout is 16.76 metres, the angle of crossing of the turnout will be given by

 A. tan-1 10 B. tan-1 5 C. tan-1 1/10 D. tan-1 1/5