Civil Engineering Mcqs

A unit hydro graph has one unit of_______________?

(A) rainfall duration
(B) rainfall excess
(C) time base of direct runoff
(D) discharge

Submitted By :Ali Uppal

For an annual flood series arranged in descending order of magnitude, the return for a magnitude listed at position period m in a total data N is________________?

(A) N/(m+l)
(B) m/(N+l)
(C) m/N
(D) (N+l)/m

Submitted By :Ali Uppal

The peak of a 4 hour flood hydrograph is 240 m3/sec . If the rainfall excess is 80 mm and base flow which is constant is 40 m3/sec, then the peak of 4-hours unit hydrograph will be__________________?

(A) 20 3/sec
(B) 25 m3/sec
(C) 30 m3/sec
(D) 35 m3/sec

Submitted By :Ali Uppal

For a catchment area of 120 km2, the equilibrium discharge in m3/hour of an S-curve obtained by the summation of 6 hour unit hydro graph is_______________?

(A) 0.2 x 106
(B) 0.6 x 106
(C) 2.4 xlO6
(D) 7.2 xlO6

Submitted By :Ali Uppal

The shape of recession limb of a hydrograph depends upon________________?

(A) basin characteristics only
(B) storm characteristics only
(C) both (A) and (B)
(D) none of the above

Submitted By :Ali Uppal

Which of the following canal outlets maintains a constant discharge ?

(A) non-modular outlet
(B) flexible outlet
(C) rigid module
(D) none of the above

Submitted By :Ali Uppal

The drainage water intercepting the canal can be disposed of by passing the canal below the drainage in___________________?

(A) aqueduct and syphon aqueduct
(B) aqueduct and super passage
(C) super passage and canal syphon
(D) level crossing

Submitted By :Ali Uppal

The aqueduct or superpassage type of works are generally used when_______________?

(A) high flood drainage discharge is small
(B) high flood drainage discharge is large and short lived
(C) high flood drainage discharge is large and continues for a long time
(D) none of the above

Submitted By :Ali Uppal

Tortuosity of a meandering river is the ratio of__________________?

(A) meander belt to meander length
(B) meander length to meander belt
(C) curved length along the channel to the direct axial length of the river reach
(D) direct axial length of the river reach to curved length along the channel

Submitted By :Ali Uppal

The main cause of meandering is________________?

(A) presence of an excessive bed slope in the river
(B) degradation
(C) the extra turbulence generated by the excess of river sediment during floods
(D) none of the above

Submitted By :Ali Uppal

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