# Civil Engineering - GATE Exam Questions

### Exercise :: GATE Exam Questions - Section 4

46.

A weir on a permeable foundation with downstream sheet pile is shown in the figure below. The exit gradient as per Khosla's method is A. 1 in 6.0 B. 1 in 5.0 C. 1 in 3.4 D. 1 in 2.5

Explanation:

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47.

Which one of the following set of values give the minimum clear cover (in mm) for the main reinforcements in the slab, beam, column and footing, respectively, according to IS : 456-1978 ?

 A. 20, 25, 30, 75 B. 5, 15, 25, 50 C. 15, 25, 40, 75 D. none of the above

Explanation:

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48.

Two flow patterns are represented by their stream functions ψ1 and ψ2 as given below:
ψ1 = x2 + y2, ψ2 = 2xy
If these two patterns are superimposed on one another, the resulting streamline pattern can be represented by one of the following :

 A. A family of parallel straight lines B. A family of circles C. A family of parabolas D. A family of hyperbolas

Explanation:

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49.

The forces in members 'a, b, c' in the truss shown are, respectively

 A. P, , 0 B. , P, 0 C. P, P, P D. , , 0

Explanation:

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50.

The plan of stairs supported at each end by landings spanning parallel with risers is shown in the below figure. The effective span of staircase slab is A. 3000 mm B. 4600 mm C. 4750 mm D. 6400 mm