Finally formed berms in canals are provided for

Protection of banks erosion by the waves

In case of a trapezoidal notch fall%!

Top length of the piers should not be less than their thickness

Splay upstream from the notch section is 45¬¨‚àû

Splay downstream from the notch section is 22¬¨Œ©¬¨‚àû

If straight sides of a triangular section of a lined canal with circular bottom of radius R, make an angle ≈í‚àè with horizontal, the area of its cross-section, is%!

R (≈í‚àè + tan ≈í‚àè)

R (≈í‚àè + cot ≈í‚àè)

R2 (≈í‚àè + tan ≈í‚àè)

R2 (≈í‚àè + cot ≈í‚àè)

The most suitable section of a lined canal, is%!

Triangular section with circular bottom for small canals

Trapezoidal section with rounded corners for large canals

Borrow pits should preferably be located in%!

Field on the left side of the canal

Field on the right side of the canal

Fields on both sides of the canal

Central half width of the section of the canal

The intensity of irrigation means%!

Percentage of gross commanded area to be irrigated annually

Percentage of culturable commanded area to be irrigated annually

Percentage of gross commanded area to be irrigated annually

Percentage of the mean of culturable commanded area and the gross commanded area to be irrigated annually

Total depth of water supplied by the number of waterings

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

Its breadth and depth ratio must only be known

According to Kennedy, the critical velocity (V‚Äö√á√Ñ) in meters in a channel is the mean velocity which keeps the channel free from silting or scouring. Its value is given by (where m is critical velocity ratio and D is the depth of the channel).%!

V‚Äö√á√Ñ = 0.84 mD0.54

V‚Äö√á√Ñ = 0.84 mD0.64

V‚Äö√á√Ñ = 0.55 mD0.64

V‚Äö√á√Ñ = 0.84 mD0.54

V‚Äö√á√Ñ = 0.55 mD0.54

V and R are the regime mean velocity and hydraulic mean depth respectively in meters. Lacey's silt factor f is%!

2V¬¨‚â§/‚Äö√ √∂3 R

A river bend characterized by silting%!

scouring on convex side and on concave side

scouring on concave side and silting on convex side

The runoff increases with%!

increase in infiltration capacity

increase in permeability of soil

To control the silt entry into a distributary at head regulator, King's vanes are provided which are the walls%!

Of R.C.C. or steel plate 8 cm thick

Of height ‚Äö√ñ√¨rd to ¬¨¬∫th the depth of water in the main canal

Spaced at interval of 1¬¨Œ© times their heights

Main purpose of mean water training for rivers is%!

To provide sufficient depth of water in navigable channels, during low water periods

To preserve the channel in good shape by efficient disposal of suspended and bed load

As per Lacey‚Äö√Ñ√¥s theory, the silt factor is%!

not related to average particle size

directly proportional to average par¬¨¬®ticle size

inversely proportional to average par¬¨¬®ticle size

directly proportional to square root of average particle size

not related to average particle size

Lane's weighted creep theory assumes%!

Equal weightage to horizontal and vertical creeps

Double weightage to horizontal creep and one weightage to vertical creep

Triple weightage to horizontal creep and one weightage to vertical creep

Triple weightage to vertical creep and one weightage to horizontal creep

According to G.W. Pickles the effect of confining the flood water of a river between levee, is to increase%!

Water surface elevation during floods

Surface slope of streams above the levied portion

*$_To control the silt entry into a distributary at head regulator, King's vanes are provided which are the walls?

Of R.C.C. or steel plate 8 cm thick

Of height ‚Äö√ñ√¨rd to ¬¨¬∫th the depth of water in the main canal

Spaced at interval of 1¬¨Œ© times their heights

*$_As per Lacey‚Äö√Ñ√¥s theory, the silt factor is?

not related to average particle size

directly proportional to average par¬¨¬®ticle size

inversely proportional to average par¬¨¬®ticle size

directly proportional to square root of average particle size

not related to average particle size

*$_Main purpose of mean water training for rivers is?

To provide sufficient depth of water in navigable channels, during low water periods

To preserve the channel in good shape by efficient disposal of suspended and bed load

*/*_V and R are the regime mean velocity and hydraulic mean depth respectively in meters. Lacey's silt factor f is?

2V¬¨‚â§/‚Äö√ √∂3 R

*/*_According to Kennedy, the critical velocity (V‚Äö√á√Ñ) in meters in a channel is the mean velocity which keeps the channel free from silting or scouring. Its value is given by (where m is critical velocity ratio and D is the depth of the channel).?

V‚Äö√á√Ñ = 0.84 mD0.54

V‚Äö√á√Ñ = 0.84 mD0.64

V‚Äö√á√Ñ = 0.55 mD0.64

V‚Äö√á√Ñ = 0.84 mD0.54

V‚Äö√á√Ñ = 0.55 mD0.54

515 + Mcqs in Irrigation Engineering in Civil Engineering Page 6 McqOptions

251.	A hydroelectric scheme operating under a head of 80 m will be classified as
A.	low head scheme
B.	medium head scheme
C.	high head scheme
D.	none of the above
Answer» D. none of the above

Discussion

252.	Finally formed berms in canals are provided for
A.	Protection of banks erosion by the waves
B.	Control of seepage losses
C.	Strengthening of banks
D.	All the above
Answer» E.

Discussion

253.	When did Irving Berlin die?
A.	6/20/1988 12:00:00 AM
B.	1/11/1979 12:00:00 AM
C.	10/12/1985 12:00:00 AM
D.	9/22/1989 12:00:00 AM
Answer» E.

Discussion

254.	Where did Irving Berlin die?
A.	Springfield
B.	Hollywood
C.	New York
D.	Rochester
Answer» D. Rochester

Discussion

255.	Which film had Irving Berlin’s song White Christmas?
A.	Call Me Madam
B.	Holiday Inn
C.	Top Hat
D.	Easter Parade
Answer» C. Top Hat

Discussion

256.	Whose singing made God Bless America popular?
A.	Al Jonson
B.	Perry Como
C.	Ethel Waters
D.	Kathryn Elizabeth Smith
Answer» E.

Discussion

257.	When did Irving Berlin found Irving Berlin Music Corporation?
A.	1919
B.	1914
C.	1922
D.	1920
Answer» B. 1914

Discussion

258.	Which was Irving Berlin’s first published song?
A.	God Bless America
B.	Always
C.	Marie from Sunny Italy
D.	When I Lost You
Answer» D. When I Lost You

Discussion

259.	Where was Irving Berlin born?
A.	St. Petersburg
B.	Moscow
C.	Yekaterinburg
D.	Mogilyov
Answer» E.

Discussion

260.	In case of a trapezoidal notch fall%!
A.	Top length of the piers should not be less than their thickness
B.	Splay upstream from the notch section is 45¬¨‚àû
C.	Splay downstream from the notch section is 22¬¨Œ©¬¨‚àû
D.	All the above
Answer» E.

Discussion

261.	Solution of Laplacian equation in three dimensions d¬¨‚â§≈ì√ú/dx¬¨‚â§ + d¬¨‚â§≈ì√ú/dy¬¨‚â§ + d¬¨‚â§≈ì√ú/dz¬¨‚â§ = 0 of water in a syphon, is done by%!
A.	Analytical method
B.	Khosla's method
C.	Method of relaxation
D.	Unwin's method
Answer» D. Unwin's method

Discussion

262.	The maximum rainfall depth of 300 mm in 24 hours has a return period of 100 years. The probability of 24 hours rainfall equal to or greater than 300 mm occurring at least once in 10 years is given by%!
A.	(0.99)10
B.	1 ‚Äö√Ñ√¨ (0.99)10
C.	(0.9)00
D.	l-(0.9)100
Answer» C. (0.9)00

Discussion

263.	If straight sides of a triangular section of a lined canal with circular bottom of radius R, make an angle ≈í‚àè with horizontal, the area of its cross-section, is%!
A.	R (≈í‚àè + tan ≈í‚àè)
B.	R (≈í‚àè + cot ≈í‚àè)
C.	R2 (≈í‚àè + tan ≈í‚àè)
D.	R2 (≈í‚àè + cot ≈í‚àè)
Answer» E.

Discussion

264.	If the straight sides of a triangular section of a lined canal with circular bottom of radius D, make an angle ? with horizontal, the hydraulic mean depth is%!
A.	D
B.	D/2
C.	D/3
D.	D/5
Answer» C. D/3

Discussion

265.	Canals taken off from ice-fed perennial rivers, are known%!
A.	Permanent canals
B.	Ridge canals
C.	Perennial canals
D.	Inundation canals
Answer» D. Inundation canals

Discussion

266.	If d1 is the depth of cutting, d2 is the height of the bank from bed level r2 : 1 and r1 : 1 are the slopes in filling and cutting respectively, the horizontal distance n between the bed and bank, is%!
A.	x = r1 d1
B.	x = r2 d2
C.	x = d1 / r1
D.	x = d2 / r2
Answer» C. x = d1 / r1

Discussion

267.	The most suitable section of a lined canal, is%!
A.	Triangular section with circular bottom for small canals
B.	Trapezoidal section with rounded corners for large canals
C.	Both (A) and (B)
D.	None of these
Answer» D. None of these

Discussion

268.	The width of a dowla is generally kept between 30 to 60 cm and its height above the road level should invariably be more than%!
A.	10 cm
B.	20 cm
C.	30 cm
D.	40 cm
Answer» D. 40 cm

Discussion

269.	The depth of water required to bring the soil moisture content of a given soil upto its field capacity is called%!
A.	hygroscopic water
B.	equivalent moisture
C.	soil moisture deficiency
D.	pellicular water
Answer» D. pellicular water

Discussion

270.	Borrow pits should preferably be located in%!
A.	Field on the left side of the canal
B.	Field on the right side of the canal
C.	Fields on both sides of the canal
D.	Central half width of the section of the canal
Answer» E.

Discussion

271.	The ratio of rate of change of the discharge of an outlet to the rate of change of the discharge of distributing channel is called%!
A.	proportionality
B.	flexibility
C.	setting
D.	sensitivity
Answer» C. setting

Discussion

272.	The ratio of average values of shear stresses produced on the bed and the banks of a channel due to flowing water is%!
A.	less than 1
B.	equal to 1
C.	greater than 1
D.	equal to zero
Answer» D. equal to zero

Discussion

273.	The intensity of irrigation means%!
A.	Percentage of culturable commanded area to be irrigated annually
B.	Percentage of gross commanded area to be irrigated annually
C.	Percentage of the mean of culturable commanded area and the gross commanded area to be irrigated annually
D.	Total depth of water supplied by the number of waterings
Answer» B. Percentage of gross commanded area to be irrigated annually

Discussion

274.	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
Answer» D. All the above

Discussion

275.	According to Kennedy, the critical velocity (V‚Äö√á√Ñ) in meters in a channel is the mean velocity which keeps the channel free from silting or scouring. Its value is given by (where m is critical velocity ratio and D is the depth of the channel).%!
A.	V‚Äö√á√Ñ = 0.84 mD0.64
B.	V‚Äö√á√Ñ = 0.55 mD0.64
C.	V‚Äö√á√Ñ = 0.84 mD0.54
D.	V‚Äö√á√Ñ = 0.55 mD0.54
Answer» C. V‚Äö√á√Ñ = 0.84 mD0.54

Discussion

276.	V and R are the regime mean velocity and hydraulic mean depth respectively in meters. Lacey's silt factor f is%!
A.	2V¬¨‚â§/‚Äö√ √∂3 R
B.	3V¬¨‚â§/4R
C.	5V¬¨‚â§/2R
D.	2V¬¨‚â§/5R
Answer» D. 2V¬¨‚â§/5R

Discussion

277.	The length and width of a meander and also the width of the river, vary roughly as%!
A.	Square root of the discharge
B.	Discharge
C.	Square of the discharge
D.	Cube of the discharge
Answer» B. Discharge

Discussion

278.	The downstream expansion head of a guide bank is extended to subtend an angle at the centre, equal to%!
A.	30¬¨‚àû
B.	45¬¨‚àû
C.	60¬¨‚àû
D.	90¬¨‚àû
Answer» C. 60¬¨‚àû

Discussion

279.	Attracting groynes are built%!
A.	Perpendicular to the bank
B.	Inclined down stream
C.	Inclined up stream
D.	None of these
Answer» C. Inclined up stream

Discussion

280.	A river bend characterized by silting%!
A.	scouring on concave side
B.	silting on convex side
C.	scouring on convex side and on concave side
D.	scouring on concave side and silting on convex side
Answer» E.

Discussion

281.	The runoff increases with%!
A.	increase in intensity of rain
B.	increase in infiltration capacity
C.	increase in permeability of soil
D.	all of the above
Answer» B. increase in infiltration capacity

Discussion

282.	Vertical drop fall is satisfactory for a height upto%!
A.	0.5 m
B.	1.5 m
C.	3.5 m
D.	5.0 m
Answer» C. 3.5 m

Discussion

283.	To control the silt entry into a distributary at head regulator, King's vanes are provided which are the walls%!
A.	Of R.C.C. or steel plate 8 cm thick
B.	Of height ‚Äö√ñ√¨rd to ¬¨¬∫th the depth of water in the main canal
C.	Spaced at interval of 1¬¨Œ© times their heights
D.	All the above
Answer» E.

Discussion

284.	Main purpose of mean water training for rivers is%!
A.	Flood control
B.	To provide sufficient depth of water in navigable channels, during low water periods
C.	To preserve the channel in good shape by efficient disposal of suspended and bed load
D.	All of the above
Answer» D. All of the above

Discussion

285.	The depth of the crest of a scouring sluice below the crest of a head regulator, is generally kept%!
A.	0.20 m
B.	1.20 m
C.	2.20 m
D.	3.20 m
Answer» C. 2.20 m

Discussion

286.	The relation between probability (P) and recurrence interval (T) is given by%!
A.	PT = 1
B.	PT2 = 1
C.	P/T = 1
D.	P/T2 = 1
Answer» B. PT2 = 1

Discussion

287.	As per Lacey‚Äö√Ñ√¥s theory, the silt factor is%!
A.	directly proportional to average par¬¨¬®ticle size
B.	inversely proportional to average par¬¨¬®ticle size
C.	directly proportional to square root of average particle size
D.	not related to average particle size
Answer» D. not related to average particle size

Discussion

288.	A current meter is used to measure the%!
A.	velocity of flow of water
B.	depth of flow of water
C.	discharge
D.	none of the above
Answer» B. depth of flow of water

Discussion

289.	Lane's weighted creep theory assumes%!
A.	Equal weightage to horizontal and vertical creeps
B.	Double weightage to horizontal creep and one weightage to vertical creep
C.	Triple weightage to horizontal creep and one weightage to vertical creep
D.	Triple weightage to vertical creep and one weightage to horizontal creep
Answer» E.

Discussion

290.	The duty is largest%!
A.	at the head of water course
B.	on the field
C.	at the head of a main canal
D.	same at all places
Answer» C. at the head of a main canal

Discussion

291.	According to G.W. Pickles the effect of confining the flood water of a river between levee, is to increase%!
A.	Rate of flood wave
B.	Water surface elevation during floods
C.	Maximum discharge
D.	Surface slope of streams above the levied portion
Answer» E.

Discussion

292.	*$_To control the silt entry into a distributary at head regulator, King's vanes are provided which are the walls?
A.	Of R.C.C. or steel plate 8 cm thick
B.	Of height ‚Äö√ñ√¨rd to ¬¨¬∫th the depth of water in the main canal
C.	Spaced at interval of 1¬¨Œ© times their heights
D.	All the above
Answer» E.

Discussion

293.	*$_As per Lacey‚Äö√Ñ√¥s theory, the silt factor is?
A.	directly proportional to average par¬¨¬®ticle size
B.	inversely proportional to average par¬¨¬®ticle size
C.	directly proportional to square root of average particle size
D.	not related to average particle size
Answer» D. not related to average particle size

Discussion

294.	*$_The depth of the crest of a scouring sluice below the crest of a head regulator, is generally kept?
A.	0.20 m
B.	1.20 m
C.	2.20 m
D.	3.20 m
Answer» C. 2.20 m

Discussion

295.	*$_Main purpose of mean water training for rivers is?
A.	Flood control
B.	To provide sufficient depth of water in navigable channels, during low water periods
C.	To preserve the channel in good shape by efficient disposal of suspended and bed load
D.	All of the above
Answer» D. All of the above

Discussion

296.	*$_The relation between probability (P) and recurrence interval (T) is given by?
A.	PT = 1
B.	PT2 = 1
C.	P/T = 1
D.	P/T2 = 1
Answer» B. PT2 = 1

Discussion

297.	/_The ratio of average values of shear stresses produced on the bed and the banks of a channel due to flowing water is?
A.	less than 1
B.	equal to 1
C.	greater than 1
D.	equal to zero
Answer» D. equal to zero

Discussion

298.	/_The downstream expansion head of a guide bank is extended to subtend an angle at the centre, equal to?
A.	30¬¨‚àû
B.	45¬¨‚àû
C.	60¬¨‚àû
D.	90¬¨‚àû
Answer» C. 60¬¨‚àû

Discussion

299.	/_V and R are the regime mean velocity and hydraulic mean depth respectively in meters. Lacey's silt factor f is?
A.	2V¬¨‚â§/‚Äö√ √∂3 R
B.	3V¬¨‚â§/4R
C.	5V¬¨‚â§/2R
D.	2V¬¨‚â§/5R
Answer» D. 2V¬¨‚â§/5R

Discussion

300.	/_According to Kennedy, the critical velocity (V‚Äö√á√Ñ) in meters in a channel is the mean velocity which keeps the channel free from silting or scouring. Its value is given by (where m is critical velocity ratio and D is the depth of the channel).?
A.	V‚Äö√á√Ñ = 0.84 mD0.64
B.	V‚Äö√á√Ñ = 0.55 mD0.64
C.	V‚Äö√á√Ñ = 0.84 mD0.54
D.	V‚Äö√á√Ñ = 0.55 mD0.54
Answer» C. V‚Äö√á√Ñ = 0.84 mD0.54

Discussion

Explore topic-wise MCQs in Civil Engineering.

A hydroelectric scheme operating under a head of 80 m will be classified as

Finally formed berms in canals are provided for

When did Irving Berlin die?

Where did Irving Berlin die?

Which film had Irving Berlin’s song White Christmas?

Whose singing made God Bless America popular?

When did Irving Berlin found Irving Berlin Music Corporation?

Which was Irving Berlin’s first published song?

Where was Irving Berlin born?

In case of a trapezoidal notch fall%!

Solution of Laplacian equation in three dimensions d¬¨‚â§≈ì√ú/dx¬¨‚â§ + d¬¨‚â§≈ì√ú/dy¬¨‚â§ + d¬¨‚â§≈ì√ú/dz¬¨‚â§ = 0 of water in a syphon, is done by%!

The maximum rainfall depth of 300 mm in 24 hours has a return period of 100 years. The probability of 24 hours rainfall equal to or greater than 300 mm occurring at least once in 10 years is given by%!

If straight sides of a triangular section of a lined canal with circular bottom of radius R, make an angle ≈í‚àè with horizontal, the area of its cross-section, is%!

If the straight sides of a triangular section of a lined canal with circular bottom of radius D, make an angle ? with horizontal, the hydraulic mean depth is%!

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

If d1 is the depth of cutting, d2 is the height of the bank from bed level r2 : 1 and r1 : 1 are the slopes in filling and cutting respectively, the horizontal distance n between the bed and bank, is%!

The most suitable section of a lined canal, is%!

The width of a dowla is generally kept between 30 to 60 cm and its height above the road level should invariably be more than%!

The depth of water required to bring the soil moisture content of a given soil upto its field capacity is called%!

Borrow pits should preferably be located in%!

The ratio of rate of change of the discharge of an outlet to the rate of change of the discharge of distributing channel is called%!

The ratio of average values of shear stresses produced on the bed and the banks of a channel due to flowing water is%!

The intensity of irrigation means%!

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

According to Kennedy, the critical velocity (V‚Äö√á√Ñ) in meters in a channel is the mean velocity which keeps the channel free from silting or scouring. Its value is given by (where m is critical velocity ratio and D is the depth of the channel).%!

V and R are the regime mean velocity and hydraulic mean depth respectively in meters. Lacey's silt factor f is%!

The length and width of a meander and also the width of the river, vary roughly as%!

The downstream expansion head of a guide bank is extended to subtend an angle at the centre, equal to%!

Attracting groynes are built%!

A river bend characterized by silting%!

The runoff increases with%!

Vertical drop fall is satisfactory for a height upto%!

To control the silt entry into a distributary at head regulator, King's vanes are provided which are the walls%!

Main purpose of mean water training for rivers is%!

The depth of the crest of a scouring sluice below the crest of a head regulator, is generally kept%!

The relation between probability (P) and recurrence interval (T) is given by%!

As per Lacey‚Äö√Ñ√¥s theory, the silt factor is%!

A current meter is used to measure the%!

Lane's weighted creep theory assumes%!

The duty is largest%!

According to G.W. Pickles the effect of confining the flood water of a river between levee, is to increase%!

*$_To control the silt entry into a distributary at head regulator, King's vanes are provided which are the walls?

*$_As per Lacey‚Äö√Ñ√¥s theory, the silt factor is?

*$_The depth of the crest of a scouring sluice below the crest of a head regulator, is generally kept?

*$_Main purpose of mean water training for rivers is?

*$_The relation between probability (P) and recurrence interval (T) is given by?

*/*_The ratio of average values of shear stresses produced on the bed and the banks of a channel due to flowing water is?

*/*_The downstream expansion head of a guide bank is extended to subtend an angle at the centre, equal to?

*/*_V and R are the regime mean velocity and hydraulic mean depth respectively in meters. Lacey's silt factor f is?

*/*_According to Kennedy, the critical velocity (V‚Äö√á√Ñ) in meters in a channel is the mean velocity which keeps the channel free from silting or scouring. Its value is given by (where m is critical velocity ratio and D is the depth of the channel).?

/_The ratio of average values of shear stresses produced on the bed and the banks of a channel due to flowing water is?

/_The downstream expansion head of a guide bank is extended to subtend an angle at the centre, equal to?

/_V and R are the regime mean velocity and hydraulic mean depth respectively in meters. Lacey's silt factor f is?

/_According to Kennedy, the critical velocity (V‚Äö√á√Ñ) in meters in a channel is the mean velocity which keeps the channel free from silting or scouring. Its value is given by (where m is critical velocity ratio and D is the depth of the channel).?