Civil Engineering - UPSC Civil Service Exam Questions

1. 

A rectangular channel of 2.5 m width and 2 m depth of water carries a flow of 10 m3/s. The specific energy for the flow is given by

A. 1.18 m
B. 3.4 m/s
C. 2.0 m/s
D. 2.2 m

Answer: Option B

Explanation:

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2. 

Which of the following pollutants is responsible for depletion of ozone layer ?

A. Unburnt hydrocarbon
B. UV rays
C. Chlorofluoro carbons
D. Oxides of nitrogen

Answer: Option C

Explanation:

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3. 

If a composite bar of steel and copper is heated, then the copper bar will be subjected to

A. compression
B. shear
C. tension
D. torsion

Answer: Option A

Explanation:

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4. 

Consider the following discharge measurement devices :
1. Cylindrical mouthpiece flowing full
2. Sharp-edged orifice
3. Convergent-divergent mouthpiece
4. Borda's re-entrant mouthpiece flowing free
The correct sequence of increasing order of their discharge coefficients is

A. 4-2-1-3
B. 4-2-3-1
C. 2-4-3-1
D. 2-4-1-3

Answer: Option A

Explanation:

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5. 

A square framework formed of uniform heavy rods of equal weight joined together is hung by one corner. A weight W is suspended from each of the three lower corners and the shape of the square is preserved .with the help of a light rod along the horizontal diagonal. The thrust of the light rod is

A. 2 W
B. 3 W
C. 4 W
D. 6 W

Answer: Option C

Explanation:

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