MCQOPTIONS
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MCQOPTIONS
This section includes 149 Mcqs, each offering curated multiple-choice questions to sharpen your Irrigation Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 101. |
Which type of system can be easily used in tube well irrigation? |
| A. | Direct Revenue Collection |
| B. | Crop Rate Revenue System |
| C. | Volumetric Method of Pricing |
| D. | Crop Rate System |
| Answer» D. Crop Rate System | |
| 102. |
Which type of canal does not need cross drainage structures? |
| A. | Side Slope Canal |
| B. | Contour Canal |
| C. | Watershed Canal |
| D. | Field Channel |
| Answer» B. Contour Canal | |
| 103. |
If the discharging capacity of the channel is less than 0.5 cumecs then, the minimum recommended value for curve radius is _________ |
| A. | 150 m |
| B. | 100 m |
| C. | 300 m |
| D. | 600 m |
| Answer» C. 300 m | |
| 104. |
Design a regime channel for a discharge of 90 cumecs and silt factor is 1.3 use Lacey’s Theory. |
| A. | Depth = 2.2 m, Base width = 40.5 m, Slope = 1/4670 |
| B. | Depth = 2.12 m, Base width = 40.42 m, Slope = 1/4675 |
| C. | Depth = 2.135 m, Base width = 40.3 m, Slope = 1/4676 |
| D. | Depth = 2.123 m, Base width = 40.1 m, Slope = 1/4672 |
| Answer» D. Depth = 2.123 m, Base width = 40.1 m, Slope = 1/4672 | |
| 105. |
In what intervals the top width of the notch lies? |
| A. | 1/2 to full water depth |
| B. | 3/4 to full water depth |
| C. | Full water depth |
| D. | 1/4 to full water depth |
| Answer» C. Full water depth | |
| 106. |
Inflow and Outflow method is generally used to measure ____________ |
| A. | transpiration loss |
| B. | seepage loss |
| C. | evaporation loss |
| D. | percolation loss |
| Answer» C. evaporation loss | |
| 107. |
In the phenomenon of Absorption, the extent of saturation goes on increasing from the ground level below the soil with depth. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» C. May be True or False | |
| 108. |
Which one is the correct expression for Shield’s entrainment function? |
| A. | Tc / Yw. d. (Gs – 1) |
| B. | Tc.Yw / d. (Gs – 1) |
| C. | Tc / Yw. d |
| D. | Tc .Yw. d / (Gs – 1) |
| Answer» B. Tc.Yw / d. (Gs – 1) | |
| 109. |
Which of the following statement is not correct about alluvial soils? |
| A. | It is formed by sediment deposition of silt from the flowing water |
| B. | The area of alluvial soil is even |
| C. | It has a flat surface slope |
| D. | Hard foundations are generally available |
| Answer» E. | |
| 110. |
Calculate the velocity over the notch (V₁) and the velocity through the pipe (V₃) if the full supply discharge is 2 cumecs. The area of flow over the trapezoidal notch is 0.58 m². Assume the value of diameter of the pipe used as 1 m. |
| A. | V₁ = 3.44 m/sec and V₃ = 2.54 m/sec |
| B. | V₁ = 2.54 m/sec and V₃ = 3.44 m/sec |
| C. | V₁ = 3.44 m/sec and V₃ = 3.44 m/sec |
| D. | V₁ = 0.44 m/sec and V₃ = 2.04 m/sec |
| Answer» B. V₁ = 2.54 m/sec and V₃ = 3.44 m/sec | |
| 111. |
In the external silting method, subsidiary banks are constructed which run parallel to canal main banks. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 112. |
What type of design does the figure represent? |
| A. | Single vertical drop fall |
| B. | Sarda Type Fall |
| C. | Baffle Fall |
| D. | Rapids |
| Answer» B. Sarda Type Fall | |
| 113. |
What vital factor is not considered in regime theories during the design of regime channels? |
| A. | Velocity of Flow in the Channel |
| B. | Type of Flow in the Channel |
| C. | Quantity of Sediment Entering a channel |
| D. | Area in which the Channel flows |
| Answer» D. Area in which the Channel flows | |
| 114. |
Which type of canal need syphons? |
| A. | Side Slope Canal |
| B. | Contour Canal |
| C. | Watershed Canal |
| D. | Field Channel |
| Answer» D. Field Channel | |
| 115. |
The quantity of water that can be diverted from the river into the main canal has no dependency on which of the following factor? |
| A. | The water available in the river |
| B. | The capacity of the main canal |
| C. | Water demand of the branch canals |
| D. | The capacity of the branch canal |
| Answer» E. | |
| 116. |
Which of the following factor have no influence on evaporation loss? |
| A. | The temperature of the region |
| B. | Prevailing wind velocity in the region |
| C. | Area of water surface exposed to the atmosphere |
| D. | The porosity of the soil |
| Answer» E. | |
| 117. |
What is the Annual Intensity of irrigation (AII)? |
| A. | Gross Irrigated Area/Cultivable Command Area |
| B. | Cultivable Command Area/Gross Irrigated Area |
| C. | Net Irrigated Area/Cultivable Command Area |
| D. | Cultivable Command Area/Net Irrigated Area |
| Answer» B. Cultivable Command Area/Gross Irrigated Area | |
| 118. |
Suppose the culturable commanded for a distributary is 8000 hectares, and the intensity of irrigation for Kharif season is 60% and that of rabi season is 30%. The average duty at the head of a distributary is 4000 hectares/cumec for Kharif season and for Rabi season it is 1800 hectares/cumec, find out discharge required at the head of the distributary? |
| A. | 1.35 cumec |
| B. | 1.32 cumec |
| C. | 1.33 cumec |
| D. | 1.3 cumec |
| Answer» D. 1.3 cumec | |
| 119. |
According to Etcheverry and Harding, the range of conveyance loss is highest in which soil? |
| A. | Sandy Loam |
| B. | Loose sandy soil |
| C. | Clay Loam |
| D. | Rocks |
| Answer» C. Clay Loam | |
| 120. |
Which of the following empirical formula is used in Punjab for calculating channel losses? |
| A. | Q’ = 1.9 Q^1/6 |
| B. | Q’ = 1/200 x (B+D)^2/3 |
| C. | Q’ = 1.9 Q |
| D. | Q’ = 1/200 x (B-D)^2/3 |
| Answer» B. Q’ = 1/200 x (B+D)^2/3 | |
| 121. |
What does the crop rate system may lead to? |
| A. | Overutilization Water |
| B. | Careful use of Water |
| C. | Sufficient use of Water |
| D. | Insufficient use of Water |
| Answer» B. Careful use of Water | |
| 122. |
By providing a natural drop in one drop _______________________ |
| A. | the quantity of unbalanced earthwork decreases |
| B. | the quantity of unbalanced earthwork increases |
| C. | the quantity of balanced earthwork increases |
| D. | number of fall increases |
| Answer» C. the quantity of balanced earthwork increases | |
| 123. |
In which fall the depth discharge relationship is unaffected? |
| A. | Trapezoidal Notch Fall |
| B. | Ogee Fall |
| C. | Rapids |
| D. | Straight Glacis Fall |
| Answer» B. Ogee Fall | |
| 124. |
The Gross Command Area (G.C.A) represents the geographical area of the Doab. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 125. |
Which of the following characteristics is wrong about extensive irrigation? |
| A. | The irrigation extends to a large area with the lowest available supply |
| B. | Agricultural production and protection against famine will be at optimum levels |
| C. | The crop production will be minimal per unit of available water |
| D. | It creates a perpetual scarcity of water |
| Answer» D. It creates a perpetual scarcity of water | |
| 126. |
Determine the shear stress required to move the single grain on the side slopes, if the critical shear stress required moving the similar grain on the horizontal bed is 2.91 N/m². Consider the angle of the side slope with the horizontal as 30° and the angle of repose of soil as 37°. |
| A. | 1.61 N/m² |
| B. | 2.61 N/m² |
| C. | 2.91 N/m² |
| D. | 1.00 N/m² |
| Answer» B. 2.61 N/m² | |
| 127. |
Depending on how many factors the government generally fixes the irrigation water revenue rates? |
| A. | 3 |
| B. | 2 |
| C. | 1 |
| D. | 4 |
| Answer» C. 1 | |
| 128. |
On what condition does the resistance equations of Chezy’s formula and manning’s formula are applicable? |
| A. | τo |
| B. | τc |
| C. | τo < τc |
| D. | τo > τc |
| Answer» D. τo > τc | |
| 129. |
Calculate the critical tractive stress if the median diameter of the sand bed is 1.0 mm. |
| A. | 0.53 N/m² |
| B. | 0.61 N/m² |
| C. | 0.73 N/m² |
| D. | 1.61 N/m² |
| Answer» B. 0.61 N/m² | |
| 130. |
What is the main agenda of the National Water Policy? |
| A. | Quality Check of Irrigation Water |
| B. | Recommendations to States |
| C. | Maintenance of the Irrigation Structures |
| D. | Recover Charges |
| Answer» E. | |
| 131. |
Which one is well traded and is provided with permanent regulation and distribution works? |
| A. | Inundation canals |
| B. | Permanent canals |
| C. | Alluvial canal |
| D. | Navigation canals |
| Answer» C. Alluvial canal | |
| 132. |
Calculate the diameter of the inlet well if the X and Y coordinate of the jet (issuing from the centre of pressure) w.r.t the water surface in the inlet well is 1.05 m and 1.88 m respectively. |
| A. | 1.575 m |
| B. | 2.82 m |
| C. | 1.79 m |
| D. | 0.83 m |
| Answer» B. 2.82 m | |
| 133. |
Which state has completely avoided the irrigation revenue rates? |
| A. | Punjab |
| B. | Maharashtra |
| C. | Andhra Pradesh |
| D. | Gujarat |
| Answer» B. Maharashtra | |
| 134. |
Canal drops are provided to _______________ |
| A. | dissipate the excess energy |
| B. | increase the driving head of flow of water |
| C. | dissipate excess land slope |
| D. | dissipate inadequate land slope |
| Answer» D. dissipate inadequate land slope | |
| 135. |
According to Kennedy the silting action in channels is due to? |
| A. | Generation of Eddies |
| B. | Slope of the Bed |
| C. | Area of Channel |
| D. | Type of Flow in the Channel |
| Answer» B. Slope of the Bed | |
| 136. |
Which type of system is not in practice in India? |
| A. | Crop Rate Revenue System |
| B. | Direct Revenue Collection |
| C. | Crop Rate System |
| D. | Volumetric Method of Pricing |
| Answer» E. | |
| 137. |
Groundnut is a cash crop but whereas wheat is a food crop. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 138. |
Determine the discharge required at the head of the distributary in a canal where Kharif area to be irrigated is 2400 hectares and Rabi area to be irrigated is 1800 hectares, for fulfilling maximum crop requirement. Assume suitable values for kor depth and kor period. |
| A. | 2.08 cumec |
| B. | 2 cumec |
| C. | 2.1 cumec |
| D. | 2.2 cumec |
| Answer» B. 2 cumec | |
| 139. |
Economic water rate means the rate worked out in rupees per unit quantity of water. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 140. |
Contour canal can irrigate only on one side of the canal. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 141. |
What is the formula for the Flow Time for the unit area in hours? |
| A. | 168 – (total Bharai – total Jharai) / Total area to be irrigated by the water-course |
| B. | 168 + (total Bharai – total Jharai) / Total area to be irrigated by the water-course |
| C. | 168 – (total Bharai – total Jharai) |
| D. | 168 + (total Bharai – total Jharai) |
| Answer» B. 168 + (total Bharai – total Jharai) / Total area to be irrigated by the water-course | |
| 142. |
What number of major defects does the ogee fall have? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 143. |
A canal which when fully developed yields enough revenue to cover up its running cost is known as _____________ |
| A. | protective canal |
| B. | productive canal |
| C. | permanent canal |
| D. | inundation canal |
| Answer» C. permanent canal | |
| 144. |
On what factor in case of branch canals, the construction site for a fall depends? |
| A. | Cost of Excavation |
| B. | Topography |
| C. | Commanded Area |
| D. | Cost of fall |
| Answer» D. Cost of fall | |
| 145. |
What is formula used to determine the crest level while designing a sarda type fall? |
| A. | a |
| B. | b |
| C. | c |
| D. | d |
| Answer» B. b | |
| 146. |
What type of fall does diagram represent? |
| A. | Simple Vertical Drop Fall |
| B. | Inglis Fall |
| C. | Straight Glacis Fall |
| D. | Ogee Fall |
| Answer» B. Inglis Fall | |
| 147. |
What type of canal alignment does the diagram represent? |
| A. | Alignment of Side Slope Canal |
| B. | Alignment of Contour Canal |
| C. | Alignment of Watershed Canal |
| D. | Alignment of Field Channel |
| Answer» D. Alignment of Field Channel | |
| 148. |
What type of fall does the diagram depict? |
| A. | Ogee Fall |
| B. | Trapezoidal Notch Fall |
| C. | Simple Vertical Drop Type Fall |
| D. | Straight Glacis Fall |
| Answer» B. Trapezoidal Notch Fall | |
| 149. |
Which type of alignment does the given figure represent? |
| A. | Alignment of Side Slope Canal |
| B. | Alignment of Contour Canal |
| C. | Alignment of Watershed Canal |
| D. | Alignment of Field Channel |
| Answer» C. Alignment of Watershed Canal | |