Civil Engineering - UPSC Civil Service Exam Questions

21. 

The 'Euler' load for a column is 1000 kN and crushing load is 1500 kN. The 'Rankine' load is equal to

A. 600 kN
B. 1000 kN
C. 1500 kN
D. 2500 kN

Answer: Option A

Explanation:

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22. 

In "full face" method of constructing tunnel, the first operation relates to

A. removal to bottom portion
B. excavation of one drift in the centre
C. removal of top portion
D. excavation being done along the perimeter

Answer: Option C

Explanation:

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23. 

Which one of the following statements best defines a 'level surface'?

A. A horizontal surface every element of which is normal to plumb line
B. A curved surface every element of which is perpendicular to the spheroidal shape of the earth
C. A plane surface which is perpendicular at all points to the direction of gravity
D. A curved surface which is perpendicular to the direction of gravity at every point

Answer: Option D

Explanation:

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24. 

In a shape test of aggregate, which one of the following gives the correct slot for flakiness index of a material passing 50 mm sieve and retained on 40 mm sieve ?

A. 25 mm
B. 27 mm
C. 81 mm
D. 30 mm

Answer: Option B

Explanation:

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25. 

Ruling gradient on highways as per IRC in plane terrain is

A. 1 in 30
B. 1 in 60
C. 1 in 100
D. 1 in 200

Answer: Option A

Explanation:

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