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irrigation and hydrology Flashcards

1
Q

Shrouding is provided in

A

slotted type tube wells

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2
Q

The efficiency of a pump may be taken as

A

.65 indiabix

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3
Q

For computing the run off volumes of large areas, number of infiltrations used are

A

2 infiltrometers are used.

  1. Single ring Infiltrometer
  2. Double ring Infiltrometer
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4
Q

If s is the potential infiltration, P is rainfall in cm in a drainage of a soil with fair pasture cover, the direct run off Q in cm is given by

A

Soil Conservation Services (SCS)-Curve Number(CN) method of estimating Runoff Volume:
Ref: Subramanya book(page number 189) there should be square in the numerator.
Q=(P-0.2S)^2/(P+0.8S) for P>0.2S.

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5
Q

For the estimate of high floods in fan-shaped catchment, the formula used is

A

Inglis formula

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6
Q

If the potential infiltration of a water shed having a soil with fair pasture cover, is 10 cm and rainfall is 12 cm, the direct run off is

A

for Direct Run off.
Q = (P-0.2S)^2/(P-0.8S).

Put Value In Equation.

P = 12 and S = 10,
We Will Get Q = 5cm.

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7
Q

[A]. The rate of flow of water through a unit cross-sectional area under a unit hydraulic gradient, is called coefficient of permeability
[B]. The rate of flow of water through a vertical strip of the acquifer of unit width and full depth under a unit hydraulic gradient, is called coefficient of transmissibility
[C]. The flow of water through acquifers, is governed by the Darcy’s law
[D].
The term ‘transmissibility’ was introduced by Meinzer @
[E]. The ratio of coefficient of transmissibility and coefficient of permeability, is equal to the depth of acquifer through which water flows.

A

Transmissibility was introduced by “theis” (1935).

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8
Q

Precipitation caused by lifting of an air mass due to the pressure difference, is called

A

cyclonic precipitation

Convective ……….Temperature diffrence.
Cyclonic……………Pressure diffrence.
Frontal ……………Warm and cold air masses.
Orographic……….Mountain barrier.

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9
Q

The standard height of a standard rain gauge, is

A

30 cm

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10
Q

Pick up the correct statement from the following :

[A]. Central portion of a cyclone acts as a chimney through which air gets lifted
[B]. Cyclonic precipitation caused by a warm front is generally continuous
[C]. Convective precipitation generally occurs in the form of showers of high intensity in short duration
[D]. Greatest amount of orographic precipitation falls in the windward side of the barrier
[E].
All the above. @

A

Pick up the correct statement from the following :

[A]. Central portion of a cyclone acts as a chimney through which air gets lifted
[B]. Cyclonic precipitation caused by a warm front is generally continuous
[C]. Convective precipitation generally occurs in the form of showers of high intensity in short duration
[D]. Greatest amount of orographic precipitation falls in the windward side of the barrier
[E].
All the above. @

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11
Q

The best instrument for measuring the velocity of a stream flow is

A

Price’s current meter

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12
Q

The Dupuit formula is based on no of observation well?

A

no observation well

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13
Q

For high flood estimates the average value of the constant C in Dicken’s formula Q = CA3/4, is

A

Here, it is 11.5 * A^(3/4).

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14
Q

If h is the loss due to friction in a pipe. Total losses in strainer and bends may be taken as

A

0.25 h

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15
Q

Dicken’s formula for high flood estimate, is useful only for the catchments in

A

Northern India
Q = CA^3/4

And Ryves formula is for southern India.
Q = CA^2/3

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16
Q

The air from central portion of cyclone’s gets lifted for causing precipitation

A

The air from central portion of cyclone’s gets lifted for causing precipitation

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17
Q

The specifications of most commonly used standard gauges in India, are

A

200 sq. cm collector and 4 litres bottle

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18
Q

Pick up the correct statement from the following :

[A]. Higher the gauge, more deficient will be the rain catch
[B]. Heavier the rain, lesser will be the rain catch
[C]. The trees serving as wind brakes in the vicinity of the gauge, should not subtend angles greater than 45°
[D]. Coniferrous forest is idealy suited for installing the gauge
[E].
All the above.

A

Pick up the correct statement from the following :

[A]. Higher the gauge, more deficient will be the rain catch
[B]. Heavier the rain, lesser will be the rain catch
[C]. The trees serving as wind brakes in the vicinity of the gauge, should not subtend angles greater than 45°
[D]. Coniferrous forest is idealy suited for installing the gauge
[E].
All the above.

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19
Q

Sharp crested weirs are generally used

A

for large flows

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20
Q

For efficient working of a control meter, its throat length is approximately kept

A

three times the critical depth

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21
Q

The form factor of a drainage basin is obtained by dividing

A

[B]. average width of the basin by the axial basin
[C]. area of the basin by the square of the axial length

both

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22
Q

Yield of a drainage basin is the run off over long periods

A

Yield of a drainage basin is the run off over long periods

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23
Q

Pick up the correct statement from the following :

[A]. The amount of water retained on the surface of soil grains by molecular attraction, is known as pellicular water
[B]. The degree of resistance to movement of the pellicular water generally expressed by the surface tension
[C]. The pellicular water held in any soil, is called field capacity
[D]. The portion of the pellicular water absorbed by the root action of the vegetation, is called available moisture
[E].
All the above. @

A

Pick up the correct statement from the following :

[A]. The amount of water retained on the surface of soil grains by molecular attraction, is known as pellicular water
[B]. The degree of resistance to movement of the pellicular water generally expressed by the surface tension
[C]. The pellicular water held in any soil, is called field capacity
[D]. The portion of the pellicular water absorbed by the root action of the vegetation, is called available moisture
[E].
All the above. @

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24
Q

The equation P - Q = Te φindex for determining the infiltration capacity, was suggested by

A

The equation P - Q = Te φindex for determining the infiltration capacity, was suggested by

[A]. Horton @

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25
Q

The discharge over a trapezoidal crest of a Sarda fall with free over fall conditions, is

[A]. 0.45 2g . LH3/2 (H/B)1/3
[B]. 0.45 2g . LH2/3 (H/B)2/3
[C]. 0.45 2g . LH3/2 (H/B)1/6 @
[D]. 0.45 2g . LH1/6 (H/B)3/2

A

The formula is same only but, 0.45 is coefficient for discharge(Cd) for the trapezoidal section and 0.415 for the rectangular crest.

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26
Q

A river training work is generally required when the river is

[A]. meandering @
[B]. aggrading
[C]. degrading
[D]. all the above.

A

A river training work is generally required when the river is

[A]. meandering @
[B]. aggrading
[C]. degrading
[D]. all the above.

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27
Q

Pick up the correct statement from the following:

[A]. If the flexibility is more than one, the outlet is hyper-proportional
[B]. If the setting of an outlet is higher than that required for proportionality, the outlet is hyper-proportional
[C]. If the setting of an outlet is lower than that required for proportionality, the outlet is sub-proportional
[D]. If the flexibility is zero, it is a rigid module
[E].
All the above. @

A

Pick up the correct statement from the following:

[A]. If the flexibility is more than one, the outlet is hyper-proportional
[B]. If the setting of an outlet is higher than that required for proportionality, the outlet is hyper-proportional
[C]. If the setting of an outlet is lower than that required for proportionality, the outlet is sub-proportional
[D]. If the flexibility is zero, it is a rigid module
[E].
All the above. @

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28
Q

Water-shed line is abondened for aligning an irrigation canal if

[A].	water shed forms a sharp loop
[B].	canal has to take off from a river
[C].	towns and villages are located on the water shed line
[D].	
all the above.	@
A

Water-shed line is abondened for aligning an irrigation canal if

[A]. water shed forms a sharp loop
[B]. canal has to take off from a river
[C]. towns and villages are located on the water shed line
[D]. all the above. @

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29
Q

For a given discharge in a channel, Blench curves give the relationship between the loss of head (HL) and

[A]. specific energy up-stream
[B]. specific energy down-stream @
[C]. critical depth of water down-stream
[D]. depth of water down-stream

A

For a given discharge in a channel, Blench curves give the relationship between the loss of head (HL) and

[A]. specific energy up-stream
[B]. specific energy down-stream @
[C]. critical depth of water down-stream
[D]. depth of water down-stream

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30
Q

If B and d are the bed width and depth of a channel in metres, the combined losses due to evaporation and seepage in cumecs per kilometre length of the channel, is

A

(1/200) * (B+d)^2/3

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31
Q

Pick up the incorrect statement from the following

[A]. Side walls of a venturi head flume are splayed out from the end of the throat at 1 : 10 for a length of 4.5 m
[B]. Length of side walls should be such that the width of the flume is made equal to 2/3rd the bed width of the distributary
[C]. Once the width of the flume becomes 2/3rd of the width of the distributary, the splayed walls are increased to 1 in 3 to get full bed width
[D].
None of these. @

A

Pick up the incorrect statement from the following

[A]. Side walls of a venturi head flume are splayed out from the end of the throat at 1 : 10 for a length of 4.5 m
[B]. Length of side walls should be such that the width of the flume is made equal to 2/3rd the bed width of the distributary
[C]. Once the width of the flume becomes 2/3rd of the width of the distributary, the splayed walls are increased to 1 in 3 to get full bed width
[D].
None of these. @

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32
Q

F.S.L. of a canal at its head with respect to parent channel is kept

[A]. at the same level
[B].
15 cm lower @

A

15 cm lower @

33
Q

Retrogression of the bed level of a river downstream a weir, occurs due to

[A]. heavy impact of water
[B]. increase of the bed level
[C]. less percentage of silt @
[D]. soft soil strata.

A

Retrogression:

It is a temporary phenomenon which occurs after the construction of barrage in the river flowing through alluvial soil.

As a result of backwater effect and increase in the depth, the velocity of water decreases resulting in deposition of sedimentation load. The water flowing through the barrage have less silt, so water picks up silt from downstream bed. This results in lowering d/s river bed to a few miles. This is known as retrogression.

34
Q

A water-logged land is found suitable for cultivation due to

[A]. ease of tillage for preparation of the field for optimum condition of germination
[B]. absence of aeration of soil from root zone of the plant
[C]. regular supply of water to plants from the water table by capillary action
[D]. none of these. @

A

Because in the waterlogged area the salt content of the soil increases and the air below the ground surface in not available for the utilization for the crop. By this the productivity get decreased and so we try to avoid cropping in the water logged land areas. We thus try to reclaim the ground by using appropriate methods.

35
Q

For smooth entry of water in a canal, the angle between head regulator and water is generally kept

A

The regulator is generally aligned at the right angle to the weir but a slightly larger angle (between 90 to 110 ) is now considered preferably for providing smooth entry of water into the regulator.

Correct answer :- (c) 110.

36
Q

In a Sarda type fall, the rectangular crest, may be used for discharge upto

A

In SARDA type fall :

a) For rectangular crest, discharge should be less than or equal to 14 cumecs.
b) For trapezoidal crest, discharge should be more than 14 cumecs.

37
Q

Approach of the water line should not be steeper than 30° and departure line not steeper than in a flumed channel section

A

Approach of the water line should not be steeper than 30° and departure line not steeper than 22.5° in a flumed channel section

38
Q

Pick up the incorrect statement from the following. Culturable commanded area is the gross area of an irrigation canal system less

[A]. populated area
[B]. alkaline area
[C]. forest area
[D]. fallow land. @

A

Answer is fallow land. Because the fallow land is including CCA. Fallow land is called culturable uncultivated area.

39
Q

Pick up the correct statement from the following

[A]. In a level crossing, a crest with its top at the canal F.S.L. is provided across the drainage at its up-stream junction with canal
[B]. In a level crossing a regulator is provided across the drainage at its down-stream
[C]. In a level crossing, a cross regulator is provided on the canal below the crossing
[D].
All the above.

A

Pick up the correct statement from the following

[A]. In a level crossing, a crest with its top at the canal F.S.L. is provided across the drainage at its up-stream junction with canal
[B]. In a level crossing a regulator is provided across the drainage at its down-stream
[C]. In a level crossing, a cross regulator is provided on the canal below the crossing
[D].
All the above.

40
Q

For designing the venturi head,

[A]. width of the throat should not be less than one-third of the bed width of main canal
[B]. width of the throat should not be less than the width obtained from the formula B = Q / 1.2d^3/2, where d is the difference in levels of F.S.L. and sill
[C]. minimum throat width should not be less than 60 cm
[D]. length of the throat should be 2.5 times the depth measured to F.S.L. in the main canal
[E]. all the above. @

A

For designing the venturi head,

[A]. width of the throat should not be less than one-third of the bed width of main canal
[B]. width of the throat should not be less than the width obtained from the formula B = Q / 1.2d^3/2, where d is the difference in levels of F.S.L. and sill
[C]. minimum throat width should not be less than 60 cm
[D]. length of the throat should be 2.5 times the depth measured to F.S.L. in the main canal
[E]. all the above. @

41
Q

The sinuosity of a meander is the ratio of

[A]. meander length and the width of meander
[B]. meander length and half width of the river
[C]. curved length and the straight distance @
[D]. none of these.

A

Sinuosity is the ratio between distance covered by the meander and the straight line distance covered by the meander. It runs from 1.0 for a completely straight river, to 1.5 for a typical meandering river, up to 3.0+ for a twisting course.

Degree of Sinuosity : the ratio of curved length and straight axial distance.

Tortuosity: the ratio of curved length along the river to the direct axial length of river.

42
Q

The top soil of a water logged field becomes more alkaline and infertile if its pH value is

A

11

PH 7 to 8.5 normal yields.
8.0 to 9.0 yield decreases.
If 11 soil becomes more alkaline and infertile.

43
Q

If the straight sides of a triangular section of a lined canal with circular bottom of radius R, make an angle θ with horizontal, the perimeter of the canal is

[A].	R(θ + tan θ)
[B].	2R(θ + tan θ)
[C].	R(θ + cos θ)
[D].	2R(θ + cos θ)	@
[E].	none of these.
A

cot θ actual answer , but cos on indiabix

Consider half portion.

For straight line portion cot θ = (x/R).

Therefore x = R.Cot θ.

Now Circular portion making angle of θ.

Length of arc = R.θ.

Therefore full length of perimeter = 2xR(θ + cot θ).

44
Q

The depth of rice root zone, is

[A].	50 cm
[B].	60 cm
[C].	70 cm
[D].	80 cm
[E].	90 cm
A

Root zone depth is 90cm

and delta is 120cm for rice.

45
Q

The saturation line is the line up to which banks get saturated after the canal runs for some time. The saturation gradient in ordinary loam soil, is generally

A

4:1

46
Q

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
[E].	4.90 m
A

The above answer of 1.20m is without excluder. If an excluder is present in the canal, then the crest of scouring sluice should be kept at 1.8 m below the crest of the head regulator.

47
Q

The velocity of drainage water in the barrels of a syphon-aqueduct, is normally limited to

[A]. 1 to 2 m per second
[B]. 2 to 3 m per second @
[C]. 3 to 4 m per second
[D]. 4 to 5 m per second.

A

2 to 3 m per second

48
Q

A fall in a canal bed is generally provided, if

[A]. ground slope exceeds the designed bed slope @
[B]. designed bed slope exceeds the ground slope
[C]. ground slope is practically the same as the designed bed slope
[D]. none of these.

A

A fall in a canal bed is generally provided, if

[A]. ground slope exceeds the designed bed slope @
[B]. designed bed slope exceeds the ground slope
[C]. ground slope is practically the same as the designed bed slope
[D]. none of these.

49
Q

According to Khosla, the exist gradient of surface flow

[A]. depends upon the b/d ratio @
[B]. is independent of the b/d ratio
[C]. is independent of the depths of d/s cut off walls
[D]. none of these.

A

Exit gradient=(H/d)(1/(&pi√ λ)).
λ=function (α),
α=b/d.
Hence exit gradient is function of b/d ratio.

50
Q

If V0 is the critical velocity of a channel, its silt transporting power, according to Kennedy, is proportional to

A

V^5/2

51
Q

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

A

perennial canals

52
Q

The down stream expansion head of a guide bank is extended to subtend an angle at the centre, equal to

[A]. 30°
[B]. 45° @
[C]. 60°
[D]. 90°

A

45°

53
Q

In north Indian Plains, optimum depth of kor watering for wheat, is

[A].	23.0 cm
[B].	19.0 cm
[C].	17.5 cm
[D].	13.5 cm	@
[E].	12.0 cm
A

19 cm for Rice.

  1. 5 SUGARCANE.
  2. 5 cm for wheat.
54
Q

Bed bars in a canal are provided

[A].	to watch the general behaviour of canal	@
[B].	to measure the discharge
[C].	to raise the supply level
[D].	to control the silting
[E].	all the above.
A

Bed bars or a profile walls are those masonary aur concrete toe wall like structures which are construted at suitable intervals along an unlined canal, so as to serve as permanent reference Marks and thus to indicate correct alignment and theoretical bed levels of the canal at these places.

55
Q

The Lacey’s regime velocity is proportional to

[A]. R1/2 S3/4
[B]. Q3/4 S1/3
[C]. R3/4 S1/3 @
[D]. R2/3 S1/2

A

Laceys regime equation is 1/n(r^3/4s^1/3)

56
Q

In a barrage, the crest level is kept

[A]. low with large gates @
[B]. high with large gates
[C]. high with no gates
[D]. low with no gates.

A

WEIR - -> NO GATES ONLY HIGH CREST.

BARRAGE - - - > GATES WITH LOWCREST.

57
Q

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.

A

Length of minder = 65.8 * Square root of Q dominant.

58
Q

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 H + d
[B]. B = 0.33 H + d
[C]. B = 0.44 H + d
[D]. B = 0.55 H + d @

A

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 H + d
[B].	B = 0.33 H + d
[C].	B = 0.44 H + d
[D].	
B = 0.55 H + d	@
59
Q

A minimum of 90 cm free board is provided if the discharge in the canal is between

[A]. 30 to 33 cumecs
[B]. 30 to 60 cumecs
[C]. Over 60 cumecs @
[D]. Over 100 cumecs

A 
Discharge(cumecs) => extent of freeboard(m).
1 to 5. => 0.50,
5 to 10 => 0.60,
10 to 30 => 0.75,
30 to 150 => 0.90.
60
Q

n Montague type fall

[A]. a straight glacis is provided
[B]. a circular glacis is provided
[C]. a parabolic glacis is provided @
[D]. no glacis is provided.

A

Montage fall is similar to straight glacis fall but in this case the glacis is not straight. It is provided in parabolic shape to introduce the vertical component of velocity which improves the energy dissipation to more extent.

61
Q

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

[A].	D
[B].	D/2	@
[C].	D/3
[D].	D/4
[E].	D/5
A

Actually it is irrigation canal having triangular sides and circular bottom and for such canal:-

A = D”2 ( @ + cot@ )………..(1).
P = 2D ( @ + cot@ )………………(2).
therefore R = A/P = (1)/(2) = D/2.

So option B is correct

62
Q
  1. In case of a trapezoidal notch fall

[A]. top width of the notch is kept between 3/4 th of full water depth above the sill of the notch
[B]. top length of the piers should not be less than their thickness
[C]. splay up stream from the notch section is 45°
[D]. splay down stream from the notch section is 22.5
[E].
all the above. @

A
  1. In case of a trapezoidal notch fall

[A]. top width of the notch is kept between 3/4 th of full water depth above the sill of the notch
[B]. top length of the piers should not be less than their thickness
[C]. splay up stream from the notch section is 45°
[D]. splay down stream from the notch section is 22.5
[E].
all the above. @

63
Q

The ratio of the rate of change of discharge of an outlet and parent channel, is known as

[A]. efficiency
[B]. sensitivity
[C]. flexibility @
[D]. modular limit.

A

The ratio of the rate of change of discharge of an outlet and parent channel, is known as

[A]. efficiency
[B]. sensitivity
[C]. flexibility @
[D]. modular limit.

64
Q

Cross regulators in main canals are provided

[A]. to regulate water supply in the distributaries
[B]. to increase water head upstream when a main canal is running with low supplies @
[C]. to overflow excessive flow water
[D]. none of these.

A

,,

65
Q

The ratio of the head recovered to the head put in, is known as

[A]. efficiency @
[B]. sensitivity
[C]. flexibility
[D]. modular limit

A

,,

66
Q

he level of the fioor of a syphon aqueduct can be obtained

[A]. by subtracting the depth of the culvert from the canal bed level
[B]. by subtracting the thickness of culvert plus the depth of the culvert from the canal bed level @
[C]. both (a) and (b)
[D]. none of these.

A

,,

67
Q

A fall which maintains its depth, is

[A]. a trapezoidal notch fall
[B]. a low weir fall
[C]. a rectangular notch fall
[D]. all the above. @

A

,,

68
Q

For diversion of flood water of rivers, the type of canal constructed, is

[A]. ridge canal
[B]. perennial canal
[C]. inundation canal @
[D]. canal.

A

Inundation canal is long canals taken off from large rivers. They receive water when the river is high enough and especially when in flood. While Perennial canals are lined to dams and barrages to provide water throughout the year, and they irrigate a vast area.

69
Q

Disposal of extra excavated earth of canals, is utilised to provide a spoil bank on

[A]. left side
[B]. right side
[C]. both sides
[D]. all the above. @

A

,,

70
Q

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

A

,,

71
Q

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. @

A

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. @

72
Q

The ratio of the discharge over a trapezoidal crest to a rectangular crest of Sarda falls of identical parameters, is

[A].	1.084	@
[B].	1.074
[C].	1.064
[D].	1.054
[E].	2.053
A

For trapezoid Q=1.99.
FOR RECTANGULAR Q=1.835.
Ratio is 1.99/1.835=1.084.

73
Q

Garnett’s diagrams are used for graphical solution of design equations of a canal by

[A]. Lacey’s theory
[B]. Kennedy’s theory @
[C]. Gibb’s theory
[D]. Lindlay theory.

A

Garret Diagram used for Kennedy’s theory.

Moddy diagram used for friction factor.

74
Q

In a concrete canal the approximate permissible velocity of water should not exceed

[A].	0.5 m/sec
[B].	1 m/sec
[C].	1.5 m/sec
[D].	2 m/sec	@
[E].	2.5 m/sec
A

Lining material Limiting velocity (m/s).

Boulder —> 1.0”1.5.
Brunt clay tile —> 1.5”2.0.
Concrete tile —> 2.0”2.5.
Concrete —> 2.5”3.0.

75
Q

For diversion of flood water of rivers, the type of canal constructed, is

[A]. ridge canal
[B]. perennial canal
[C]. inundation canal @
[D]. canal.

A

Inundation canal is long canals taken off from large rivers. They receive water when the river is high enough and especially when in flood. While Perennial canals are lined to dams and barrages to provide water throughout the year, and they irrigate a vast area.

76
Q

For cereal crops the most commonly adopted method of irrigation, is

[A]. free flowing method
[B]. check method @
[C]. furrow method
[D]. sprinkling method.

A 
Standing crop -- sprinkler(high efficiency).
Orchard tree -- basin.
Rolling land. -- free(wild flooding).
Cereal -- check flooding.
Low water -- drip.
Low water with high pr -- sprinkler.
Sewage water -- effluent irrigation.
77
Q

Lacey’s equation for calculating flood discharge in rivers, is

[A]. V = 10.8 R1/2 S1/2
[B]. V = 10.8 R2/3 S1/2
[C]. V = 10.8 R2/3 S1/3 @
[D]. V = 10.8 R1/3 S2/3

A

Lacey’s equation for calculating flood discharge in rivers, is

[A]. V = 10.8 R1/2 S1/2
[B]. V = 10.8 R2/3 S1/2
[C]. V = 10.8 R2/3 S1/3 @
[D]. V = 10.8 R1/3 S2/3

78
Q

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.

A

Yes, it is Inglis Type Fall where Baffle walls are provided downstream.

indiabix (17 decks)

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