Side slopes generally kept for canals in loam soil, are:

1 : 1 in cutting and 1¬¨Œ© : 1 in filling

1¬¨Œ© : 1 in cutting and 2 : 1 in filling

The aqueduct or superpassage type of works are generally used when

high flood drainage discharge is large and short lived

high flood drainage discharge is small

high flood drainage discharge is large and short lived

high flood drainage discharge is large and continues for a long time

If H and d are the water depth and drop in the bed level at a Sarda fall, the width B of the trapezoidal crest, is given by

B = 0.22 ‚Äö√ √∂(H + d)

B = 0.33 ‚Äö√ √∂(H + d)

B = 0.44 ‚Äö√ √∂(H + d)

B = 0.55 ‚Äö√ √∂(H + d)

If D‚Äö√á√Ö and D‚Äö√á√á are depths of water upstream and downstream of a hydraulic jump, the loss of head at the jump, is#

(D‚Äö√á√á - D‚Äö√á√Ö)3/D‚Äö√á√ÖD‚Äö√á√á

(D‚Äö√á√á - D‚Äö√á√Ö)3/2D‚Äö√á√ÖD‚Äö√á√á

(D‚Äö√á√á - D‚Äö√á√Ö)3/3D‚Äö√á√ÖD‚Äö√á√á

(D‚Äö√á√á - D‚Äö√á√Ö)3/4D‚Äö√á√ÖD‚Äö√á√á

515 + Mcqs in Irrigation Engineering in Civil Engineering Page 11 McqOptions

501.	Seepage through foundation in an earthen dam is controlled by providing
A.	rock toe
B.	horizontal blanket
C.	impervious cut off
D.	chimney drain
Answer» D. chimney drain

Discussion

502.	Side slopes generally kept for canals in loam soil, are:
A.	1 : 1 in cutting and 1¬¨Œ© : 1 in filling
B.	1¬¨Œ© : 1 in cutting and 2 : 1 in filling
C.	Neither (A) nor (B)
D.	Both (A) and (B)
Answer» E.

Discussion

503.	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
Answer» B. high flood drainage discharge is large and short lived

Discussion

504.	Which of the following canal structures is used to remove surplus water from an irrigation channel into a natural drain ?
A.	canal fall
B.	canal outlet
C.	canal escape
D.	canal regulator
Answer» D. canal regulator

Discussion

505.	Which of the following can be used as a meter fall ?
A.	vertical drop fall
B.	flumed glacis fall
C.	unflumed glacis fall
D.	all of the above
Answer» B. flumed glacis fall

Discussion

506.	Wetted perimeter of a regime channel for a discharge of 64 cumecs as per Lacey‚Äö√Ñ√¥s theory will be#
A.	19m
B.	38m
C.	57m
D.	76m
Answer» C. 57m

Discussion

507.	If H and d are the water depth and drop in the bed level at a Sarda fall, the width B of the trapezoidal crest, is given by
A.	B = 0.22 ‚Äö√ √∂(H + d)
B.	B = 0.33 ‚Äö√ √∂(H + d)
C.	B = 0.44 ‚Äö√ √∂(H + d)
D.	B = 0.55 ‚Äö√ √∂(H + d)
Answer» E.

Discussion

508.	To determine the discharge at a section in a stream from its rating curve, the required data arei) slope of water surface at the sectionii) stage at the sectioniii) current meter readings at the sectionThe correct answer is
A.	(i) and (ii)
B.	(ii) and (iii)
C.	only (ii)
D.	only (iii)
Answer» D. only (iii)

Discussion

509.	In a chute spillway, the flow is usually
A.	uniform
B.	subcritical
C.	critical
D.	super critical
Answer» E.

Discussion

510.	If D‚Äö√á√Ö and D‚Äö√á√á are depths of water upstream and downstream of a hydraulic jump, the loss of head at the jump, is#
A.	(D‚Äö√á√á - D‚Äö√á√Ö)3/D‚Äö√á√ÖD‚Äö√á√á
B.	(D‚Äö√á√á - D‚Äö√á√Ö)3/2D‚Äö√á√ÖD‚Äö√á√á
C.	(D‚Äö√á√á - D‚Äö√á√Ö)3/3D‚Äö√á√ÖD‚Äö√á√á
D.	(D‚Äö√á√á - D‚Äö√á√Ö)3/4D‚Äö√á√ÖD‚Äö√á√á
Answer» E.

Discussion

511.	Tortuosity of a meandering river is always
A.	equal to 1
B.	less than 1
C.	greater than 1
D.	less than or equal to 1
Answer» D. less than or equal to 1

Discussion

512.	A runoff river plant is
A.	a low head scheme
B.	a medium head scheme
C.	a high head scheme
D.	none of the above
Answer» B. a medium head scheme

Discussion

513.	The ratio of the rate of change of discharge of an outlet to the rate of change in level of water surface in a distributary at its normal depth, is known as
A.	Efficiency
B.	Sensitivity
C.	Flexibility
D.	Modular limit
Answer» C. Flexibility

Discussion

514.	A raingauge should preferably be fixed
A.	near the building
B.	under the tree
C.	in an open space
D.	in a closed space
Answer» D. in a closed space

Discussion

515.	Study the following statements.i) Levees are constructed parallel to river flow,ii) Spurs are constructed parallel to river flow,iii) Levees are constructed transverse to river flow,iv) Spurs are constructed transverse to river flow.The correct answer is
A.	(i) and (ii)
B.	(i) and (iv)
C.	(ii) and (iii)
D.	(iii) and (iv)
Answer» C. (ii) and (iii)

Discussion

Explore topic-wise MCQs in Civil Engineering.

Seepage through foundation in an earthen dam is controlled by providing

Side slopes generally kept for canals in loam soil, are:

The aqueduct or superpassage type of works are generally used when

Which of the following canal structures is used to remove surplus water from an irrigation channel into a natural drain ?

Which of the following can be used as a meter fall ?

Wetted perimeter of a regime channel for a discharge of 64 cumecs as per Lacey‚Äö√Ñ√¥s theory will be#

If H and d are the water depth and drop in the bed level at a Sarda fall, the width B of the trapezoidal crest, is given by

To determine the discharge at a section in a stream from its rating curve, the required data arei) slope of water surface at the sectionii) stage at the sectioniii) current meter readings at the sectionThe correct answer is

In a chute spillway, the flow is usually

If D‚Äö√á√Ö and D‚Äö√á√á are depths of water upstream and downstream of a hydraulic jump, the loss of head at the jump, is#

Tortuosity of a meandering river is always

A runoff river plant is

The ratio of the rate of change of discharge of an outlet to the rate of change in level of water surface in a distributary at its normal depth, is known as

A raingauge should preferably be fixed

Study the following statements.i) Levees are constructed parallel to river flow,ii) Spurs are constructed parallel to river flow,iii) Levees are constructed transverse to river flow,iv) Spurs are constructed transverse to river flow.The correct answer is