Civil MCQ

2.Drip irrigation is suited for
a.uneven areas
b.undulated areas
c.Hilly areas
d.All of the Above

The capacity of an irrigation tank is sometimes increased by installing

(A) Divide wall

(B) Dam stones

(C) Saddle

(D) Breast well

The test intended to study the resistance of aggregates to weathering action is:

A.Crushing test
B.Impacttest
C.Abrasion test
D.Soundness test

Select the incorrect statement.
A. The true meridians at different places are parallel to each other.
B. The true meridian at any place is not variable.
C. The true meridians converge to a point in northern and southern hemispheres.
D. The maps prepared by national survey departments of any country are based on true meridians.

Useful soil moisture for plant growth, is

A. capillary water
B. gravity water
C. hygroscopic water
D. chemical water
E. all the above.

Disinfection is the process of
A killing all the bacteria
B killing only pathogenic bacteria
C complete destruction of life
D Removal of causative organism for disease.

......... is the best camber.
A.straight line camber
B. sloped camber
C. Composite camber
D. both A and B

Plywood is made from
A. Common timber
B. Bamboo fibre
C. Teak wood only
D. Asbestos sheets

The technique for establishing and maintaining priorities among the various jobs of a project, is known

[A].Event flow scheduling technique
[B].Critical ratio scheduling
[C].Slotting technique for schedulin
[D].Short interval scheduling.

The rate of an item of work depends on
(A) Specifications of works
(B) Specifications of materials
(C) Proportion of mortar
(D) All the above

The rate of payment is made for 100 cu m (per % cu m) in case of

(A) Earth work in excavation

(B) Rock cutting

(C) Excavation in trenches for foundation

(D) All the above

Quality and cost based selection Qcbs method is used

a. To select contractor
b. To select consultant
c. To select best project
d. All of the above

The distance, measured along the centre line of a road, over which a driver can see the opposite object on the road surface, is called
A. sight distance
B. visibility
C. clear distance
D. none of these

The camber, for the drainage of surface water, was first introduced by
A. Telford
B. Tresaguet
C. Sully
D. Macadam

The discharge through a channel of rectangular section will be maximum, if
A. its depth is twice the breadth
B. its breadth is twice the depth
C. its depth is thrice the breadth
D. its breadth is thrice the depth

Amount of water soil can hold against the pull of gravity is called as
(A) Field capacity
(B) Gravitational water
(C) Capillary water
(D) Hygroscopic water

The structure constructed to allow drainage water to flow under pressure through an inverted syphon below a canal, is called

(A) Syphon
(B) Super passage
(C) Super-aqueduct
(D) Syphon aqueduct

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For a unique design of a channel by Kennedy's theory

(A) Its breadth must only be known
(B) Its depth must only be known
(C) Its breadth and depth ratio must only be known
(D) All the above

. Pick up the correct statement from the following

(A) Escapes are essential safety valves in a canal system
(B) The escapes must lead the surplus water to natural drainages
(C) The escapes are aligned to take advantage of contours of lower values
(D) All the above

The water face of the guide banks, is protected by

(A) One men stone pitching
(B) Two man stone pitching
(C) Three man stone pitching
(D) Four man stone pitching

. The field capacity of a soil depends upon

(A) Capillary tension in soil
(B) Porosity of soil
(C) Both (a) and (b)
(D) Neither (a) nor (b)

Pick up the correct sequence of the part of a canal system from the following

(A) Head work-distributary-branch canal-minor
(B) Head works-main canal-branch canal-distributary-minor
(C) Head works-main canal-branch canal-minor-distributary
(D) Heads works-branch canal-main canal distributary, minor

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To hold hydraulic jumps, baffle walls are provided in
(A) Sarda type falls
(B) English type falls
(C) Montague type falls
(D) Vertical type falls

In a syphon aqueduct

(A) Drainage passes over the canal and F.S.L. of the canal is below the bottom of the drainage trough
(B) Drainage passes over the canal and F.S.L. of the canal is above the bottom of the drainage trough
(C) Canal passes over the drainage and H.F.L. of the drainage is above the bottom of the canal trough
(D) Canal passes over the drainage and H.F.L. of the drainage is below the bottom of the canal trough

If A is the area of the surface, x̅ is the depth of its C.G. from the surface of the water and ω is the density of water, then

(A) Total pressure on the surface is equal to ωx̅
(B) Depth of the point at which total pressure acts is equal to its moment of inertia divided by Ax̅
(C) Depth of the centre of pressure is 2/3H vertically below the surface
(D) All the above

. If water table is comparatively high, the irrigation canal becomes useless, due to

(A) Large amount of seepage
(B) Water logging of the cultivated areas
(C) Uncertain water demand
(D) All the above

The field capacity of a soil is 25%, its permanent wilting point is 15% and specific dry unity weight is 1.5. If the depth of root zone of a crop, is 80 cm, the storage capacity of the soil, is

(A) 8 cm
(B) 10 cm
(C) 12 cm
(D) 14 cm

In gravity canals, F.S.L. is

(A) Always at the ground level
(B) Always below the ground level
(C) Generally 4 to 5 meters above the ground level
(D) Only a few cm above the ground level

Canals taken off from ice-fed perennial rivers, are known

(A) Permanent canals
(B) Ridge canals
(C) Perennial canals
(D) Inundation canals