# Civil Engineering - UPSC Civil Service Exam Questions

41.

In a direct shear test the shear stress and normal stress on a dry sand sample at failure are 0.6 kg/cm2 and 1 kg/cm2 respectively. The angle of internal friction of the sand will be nearly

 A. 25° B. 31° C. 37° D. 43°

Explanation:

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42.

In the network given in figure, the maximum number of shovels and dumpers required are

 A. 6 shovels and 14 dumpers on days 9 and 10 B. 24 shovels and 10 dumpers on days 3 and 4 C. 30 shovels and 90 dumpers on all days D. 10 shovels and 24 dumpers on days 3 and 4

Explanation:

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43.

Consider the following statements :
A good soil for making bricks should contain
3. a small quantity of iron oxides
Of these statements :

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

Explanation:

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44.

Service connection consists of

 A. ferrule, stopcock and gooseneck B. ferrule, check valve and gooseneck C. stopcock, meter and sluice valve D. sluice valve, check valve and meter

Explanation:

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45.

In the phase diagrams given, the change due to initial state changing into final state is shown due to consolidation. Depth of soil layer undergoing consolidation is H ; e0 is initial void ratio; ef is final void ratio ; Δe is change in void ratio. Indicate which of the following expressions gives settlement of the layer :

 A. B. C. D.