Pick up the correct statement from the following:
Pick up the correct statement from the following:
According to Kennedy, the critical velocity (V₀) 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).
According to Kennedy, the critical velocity (V₀) 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).
If Δ is the depth of water in metres, B is the number of days of base period and D is the duty in hectare/cumec, the relationship which holds good, is
If Δ is the depth of water in metres, B is the number of days of base period and D is the duty in hectare/cumec, the relationship which holds good, is
Bligh's theory of seepage assumes
Bligh's theory of seepage assumes
A divide wall is provided
A divide wall is provided
Interception losses are due to
i) evaporation
ii) transpiration
iii) stream flow
The correct answer is
Interception losses are due to
i) evaporation
ii) transpiration
iii) stream flow
The correct answer is
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
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
The intensity of irrigation means
The intensity of irrigation means
The uplift pressure on a dam can be controlled by
i) constructing cutoff under upstream face
ii) constructing drainage channels bet-ween the dam and its foundation
iii) by pressure grouting in foundation
The corret answer is
The uplift pressure on a dam can be controlled by
i) constructing cutoff under upstream face
ii) constructing drainage channels bet-ween the dam and its foundation
iii) by pressure grouting in foundation
The corret answer is
Trap efficiency of a reservoir is a function of
Trap efficiency of a reservoir is a function of
The rainfall on five successive days were measured as 100 mm, 80 mm, 60 mm, 40 mm and 20 mm respectively. If the infiltration index or the storm loss rate for the catchment area is earlier estimated as 50 mm/day, the total surface run off will be
The rainfall on five successive days were measured as 100 mm, 80 mm, 60 mm, 40 mm and 20 mm respectively. If the infiltration index or the storm loss rate for the catchment area is earlier estimated as 50 mm/day, the total surface run off will be
Disposal of extra excavated earth of canals, is utilized to provide a spoil bank on
Disposal of extra excavated earth of canals, is utilized to provide a spoil bank on
Borrow pits should preferably be located in
Borrow pits should preferably be located in
Instantaneous unit hydrograph is a hydrograph of
i) unit duration
ii) unit rainfall excess
iii) infinitely small duration
iv) infinitely small rainfall excess
The correct answer is
Instantaneous unit hydrograph is a hydrograph of
i) unit duration
ii) unit rainfall excess
iii) infinitely small duration
iv) infinitely small rainfall excess
The correct answer is
Optimum depth of kor watering for rice is
Optimum depth of kor watering for rice is
Under the same conditions, which of the following shapes of water surface will give the highest rate of evaporation ?
Under the same conditions, which of the following shapes of water surface will give the highest rate of evaporation ?
The most suitable section of a lined canal, is
The most suitable section of a lined canal, is
In a barrage, the crest level is kept
In a barrage, the crest level is kept
The kor depth for rice is 190 mm and kor period is 14 days. The outlet factor for this will be
The kor depth for rice is 190 mm and kor period is 14 days. The outlet factor for this will be
With the increase in the quantity of water supplied, the yield of most crops
With the increase in the quantity of water supplied, the yield of most crops
V and R are the regime mean velocity and hydraulic mean depth respectively in meters. Lacey's silt factor f is
V and R are the regime mean velocity and hydraulic mean depth respectively in meters. Lacey's silt factor f is
Groynes are generally built
Groynes are generally built
To estimate the magnitude of a flood with a return period of T years, Gumbel’s distribution method requires the following data pertaining to annual flood series
i) mean value
ii) standard deviation
iii) length of record
iv) coefficient of skew
The correct answer is
To estimate the magnitude of a flood with a return period of T years, Gumbel’s distribution method requires the following data pertaining to annual flood series
i) mean value
ii) standard deviation
iii) length of record
iv) coefficient of skew
The correct answer is
A multipurpose reservoir is the one which is
A multipurpose reservoir is the one which is
The downstream expansion head of a guide bank is extended to subtend an angle at the centre, equal to
The downstream expansion head of a guide bank is extended to subtend an angle at the centre, equal to
The main function of a divide wall is to
The main function of a divide wall is to
As compared to gravity dams, earthen dams
As compared to gravity dams, earthen dams
A river bend characterized by silting
A river bend characterized by silting
The main function of a diversion head works of a canal from a river, is
The main function of a diversion head works of a canal from a river, is
Seepage through embankments in an earthen dam is controlled by
Seepage through embankments in an earthen dam is controlled by
The value of Sodium Absorption Ratio for high sodium water lies between
The value of Sodium Absorption Ratio for high sodium water lies between
A river is said to be of
A river is said to be of
Bed bars in a canal are provided
Bed bars in a canal are provided
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
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 scour depth D of a river during flood, may be calculated from the Lacey's equation
The scour depth D of a river during flood, may be calculated from the Lacey's equation
A counter berm is
A counter berm is
Useful soil moisture for plant growth, is
Useful soil moisture for plant growth, is
The state of the soil when plants fail to extract sufficient water for their requirements, is
The state of the soil when plants fail to extract sufficient water for their requirements, is
A minimum of 90 cm free board is provided if the discharge in the canal is between
A minimum of 90 cm free board is provided if the discharge in the canal is between
The uplift pressure on the roof of an inverted syphon, is maximum when
The uplift pressure on the roof of an inverted syphon, is maximum 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 canal structures is used to remove surplus water from an irrigation channel into a natural drain ?
For the design of major hydraulic structures on the canals, the method generally preferred to, is based on
For the design of major hydraulic structures on the canals, the method generally preferred to, is based on
A 6 hours storm had 4 cm of rainfall and the resulting runoff was 2 cm. If
Answer & Solution
Answer: Option B
38.
A multipurpose reservoir is the one which is
Answer & Solution
Answer: Option B
39.
A divide wall is provided
Answer & Solution
Answer: Option A
40.
The consumptive use of water for a crop
Answer & Solution
Answer: Option D
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A 6 hours storm had 4 cm of rainfall and the resulting runoff was 2 cm. If
Answer & Solution
Answer: Option B
38.
A multipurpose reservoir is the one which is
Answer & Solution
Answer: Option B
39.
A divide wall is provided
Answer & Solution
Answer: Option A
40.
The consumptive use of water for a crop
Answer & Solution
Answer: Option D
Read More Section(Irrigation Engineering)
Each Section contains maximum 70 questions. To get more questions visit other sections.
For supplying water to rabi crop, kharif crop and sugarcane, the channel is designed for a capacity equal to the greater of the water requirement of
For supplying water to rabi crop, kharif crop and sugarcane, the channel is designed for a capacity equal to the greater of the water requirement of
The width of a meander belt is the transverse distance between
The width of a meander belt is the transverse distance between
The ratio of the average load to the installed capacity of the plant whose reserve capacity is zero will be equal to
The ratio of the average load to the installed capacity of the plant whose reserve capacity is zero will be equal to
In gravity canals, F.S.L. is
In gravity canals, F.S.L. is
Meandering of a river generally occurs, in
Meandering of a river generally occurs, in
Which of the following types of rain gauges is used for measuring rain in remote hilly inaccessible areas ?
Which of the following types of rain gauges is used for measuring rain in remote hilly inaccessible areas ?
A 70% index of wetness means
A 70% index of wetness means
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
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
The difference in level between the top of a bank and supply level in a canal, is called
The difference in level between the top of a bank and supply level in a canal, is called
Finally formed berms in canals are provided for
Finally formed berms in canals are provided for
If it rains between 2 P.M. and 3 P.M. and the entire basin area just starts contributing water at 3 P.M. to the outlet, then time of concentration will be
If it rains between 2 P.M. and 3 P.M. and the entire basin area just starts contributing water at 3 P.M. to the outlet, then time of concentration will be
The consumptive use of water for a crop
The consumptive use of water for a crop
Variability of rainfall is
i) largest in regions of high rainfall
ii) largest in coastal areas
iii) largest in regions of scanty rainfall
The correct answer is
Variability of rainfall is
i) largest in regions of high rainfall
ii) largest in coastal areas
iii) largest in regions of scanty rainfall
The correct answer is
To determine the discharge at a section in a stream from its rating curve, the required data are
i) slope of water surface at the section
ii) stage at the section
iii) current meter readings at the section
The correct answer is
To determine the discharge at a section in a stream from its rating curve, the required data are
i) slope of water surface at the section
ii) stage at the section
iii) current meter readings at the section
The correct answer is
In a syphon aqueduct
In a syphon aqueduct
The sensitivity of a rigid module is
The sensitivity of a rigid module is
The length and width of a meander and also the width of the river, vary roughly as
The length and width of a meander and also the width of the river, vary roughly as
If straight sides of a triangular section of a lined canal with circular bottom of radius R, make an angle θ with horizontal, the area of its cross-section, is
If straight sides of a triangular section of a lined canal with circular bottom of radius R, make an angle θ with horizontal, the area of its cross-section, is
If d is the depth of the aquifer through which water is flowing, then the relationship between permeability k and transmissible T is given by
If d is the depth of the aquifer through which water is flowing, then the relationship between permeability k and transmissible T is given by
Wetted perimeter of a regime channel for a discharge of 64 cumecs as per Lacey’s theory will be
Wetted perimeter of a regime channel for a discharge of 64 cumecs as per Lacey’s theory will be
If D₁ and D₂ are depths of water upstream and downstream of a hydraulic jump, the loss of head at the jump, is
If D₁ and D₂ are depths of water upstream and downstream of a hydraulic jump, the loss of head at the jump, is
The length of a meander is the distance along the river between the tangent point of one curve to the tangent point of
The length of a meander is the distance along the river between the tangent point of one curve to the tangent point of
The ratio of average values of shear stresses produced on the bed and the banks of a channel due to flowing water is
The ratio of average values of shear stresses produced on the bed and the banks of a channel due to flowing water is
Unit of runoff in M.K.S. system is
Unit of runoff in M.K.S. system is
If D is the depth of scour below original bed, then the width of launching apron is generally taken as
If D is the depth of scour below original bed, then the width of launching apron is generally taken as
Lane's weighted creep theory assumes
Lane's weighted creep theory assumes
A current meter is used to measure the
A current meter is used to measure the
For a unique design of a channel by Kennedy's theory
For a unique design of a channel by Kennedy's theory
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 rate of change of the discharge of an outlet to the rate of change of the discharge of distributing channel is called
In a chute spillway, the flow is usually
In a chute spillway, the flow is usually
The water face of the guide banks, is protected by
The water face of the guide banks, is protected by
An artesian aquifer is the one where
An artesian aquifer is the one where
The forces, which are considered for the analysis of an elementary profile of a gravity dam under empty reservoir condition, are
i) Water pressure
ii) Self weight
iii) Uplift
iv) Pressure due to earthquake
The correct answer is
The forces, which are considered for the analysis of an elementary profile of a gravity dam under empty reservoir condition, are
i) Water pressure
ii) Self weight
iii) Uplift
iv) Pressure due to earthquake
The correct answer is
If the risk of a flood occurring in the next 10 years is accepted to 10%, then the return period for design should be
If the risk of a flood occurring in the next 10 years is accepted to 10%, then the return period for design should be
The useful moisture of soil, is equal to its
The useful moisture of soil, is equal to its
The structure constructed to allow drainage water to flow under pressure through an inverted syphon below a canal, is called
The structure constructed to allow drainage water to flow under pressure through an inverted syphon below a canal, is called
A fall in a canal bed is generally provided, if
A fall in a canal bed is generally provided, if
For wave action in dams, the maximum height of freeboard is generally taken to be equal to (where hw is height of wave.)
For wave action in dams, the maximum height of freeboard is generally taken to be equal to (where hw is height of wave.)
According to G.W. Pickles the effect of confining the flood water of a river between levee, is to increase
According to G.W. Pickles the effect of confining the flood water of a river between levee, is to increase
The depth of water required to bring the soil moisture content of a given soil upto its field capacity is called
The depth of water required to bring the soil moisture content of a given soil upto its field capacity is called
Irrigation water having the concentration of Na++ , Ca++ and Mg++ as 20, 3 and 1 Milli equivalent per litre respectively will be classified as
Irrigation water having the concentration of Na++ , Ca++ and Mg++ as 20, 3 and 1 Milli equivalent per litre respectively will be classified as
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 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 duty is largest
The duty is largest
When a canal and a drainage approach each other at the same level, the structure so provided, is
When a canal and a drainage approach each other at the same level, the structure so provided, is
The ratio of the discharge over a trapezoidal crest to a rectangular crest of Sarda falls of identical parameters, is
The ratio of the discharge over a trapezoidal crest to a rectangular crest of Sarda falls of identical parameters, is
A raingauge should preferably be fixed
A raingauge should preferably be fixed
Canals constructed for draining off water from water logged areas, are known
Canals constructed for draining off water from water logged areas, are known
A hydroelectric scheme operating under a head of 80 m will be classified as
A hydroelectric scheme operating under a head of 80 m will be classified as
The flow of water after spilling over the weir crest in chute spillway and side channel spillway respectively are
The flow of water after spilling over the weir crest in chute spillway and side channel spillway respectively are
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
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
Presence of tail water in a gravity dam
i) increases the principal stress
ii) decreases the principal stress
iii) increases the shear stress
iv) decreases the shear stress
The correct answer is
Presence of tail water in a gravity dam
i) increases the principal stress
ii) decreases the principal stress
iii) increases the shear stress
iv) decreases the shear stress
The correct answer is
The main cause of meandering is
The main cause of meandering is
If D is the depth of water upstream of the throat above its sill, B is the width of the throat, to achieve critical flow in an open venturi flume, the theoretical maximum flow Q, is
If D is the depth of water upstream of the throat above its sill, B is the width of the throat, to achieve critical flow in an open venturi flume, the theoretical maximum flow Q, is
If the irrigation efficiency is 80%, conveyance losses are 20% and the actual depth of watering is 16 cm, the depth of water required at the canal outlet, is
If the irrigation efficiency is 80%, conveyance losses are 20% and the actual depth of watering is 16 cm, the depth of water required at the canal outlet, is
Which of the following can be used as a meter fall ?
Which of the following can be used as a meter fall ?
The amount of irrigation water required to meet the evapotranspiration needs of the crop during its full growth is called
The amount of irrigation water required to meet the evapotranspiration needs of the crop during its full growth is called
The uplift pressure on the face of a drainage gallery in a dam is taken as
The uplift pressure on the face of a drainage gallery in a dam is taken as
Pick up the incorrect statement from the following. Culturable commanded area is the gross area of an irrigation canal system less
Pick up the incorrect statement from the following. Culturable commanded area is the gross area of an irrigation canal system less
