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Irrigation Objective Questions

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Published in: Civil
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Best objective question for civil branch and other of irrigation

Harsh S / Bhopal

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Qualification: B.Tech/B.E. (Ipst MGCGV Gov. University Satna M.P. - 2017)

Teaches: Biology, Chemistry, Mathematics, Physics, All Subjects, NTSE, School Level Computer, B.Sc Tuition, B.Tech Tuition, Architecture, GATE Exam, IIT JEE Advanced, IIT JEE Mains, Civil, Drawing, Mechanical

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  1. 1. Water resource engineering -2 If duty of water for a core of base period 120 days is 1400 hec/cumec then delta for crop is- a) 741 mm b) 843 mm c) 949mm d) 1056mm 2) core period of kharif crops is — A) march to june B) july to oct c) oct to march d) 3) According to khosala theory exit gradient is given by 4.) which of the following are cash crop — A ) wheat B )gram C) rice D) sugarcane 5) showing time of rice is — may to august A) june to july B) nov to dec C) oct to nov D) march to april 6) harvesting time of rice is — A) june to july B) oct to nov C) nov to dec D) march to april 7) which are the following are rabi crop- A) cotton B ) Rice C) Pea D) Wheat 8) The crop period of ZAID- A) june to oct B) march to June C) Dec to march D) oct to jan 9) what do you mean by mix cropping— A) Two crop cultivate simultaneously C ) crops cultivate by seed drius. 10) what do you mean by crop period- B) The crop cultivate separately D) Two crop is cultivate in same time period. A) showing to harvesting time C) cultivation time B) First watering to last watering time D) harvesting time 11) No of watering = 12 nos, interval=10 days ,each watering cmc ,find total volume of watering 12) 13) A) 100 cumec B) 120 cumec C) 1200 cumec D) 150 cumec total volume of soli is given by- A) Va +VW+Vs B) Va+Vw C) va +Vs D) vw Porosity of soil is given by — A) vv/vs B) vs/vv C) VV/V D) ww/ws 14)- Void ratio is given by:- a.) Volume of voids to volume of solids b.) Volume of voids to total volume d.) Volume of solids to volume of voids d.) Volume of solids to total volume
  2. Water resource engineering -2 15)- What do you mean by saturation capacity? a.) Moisture content of soil c.) Retention capacity of soil 16)- The head loss due to sudden expansion is given by- b.) Maximum moisture holding capacity d.) Available moisture a.) b.) c.) 17)- Silt excluder is provided- d.) a.) In canal downstream side of head regulator b.) In the river on downstream side of barrage c.) In the river far away from the weir on downstream side d.) In river adjacent to head regulator 18)- For plant growth, useful soil moisture is- a.) Capillary water c.) Chemical water b.) Gravity water d.) Hygroscopic water 19)- The interval of supply of irrigation water depends on type of- a.) Crop only c.) crop and climate 20)- Fish ladder is provided on side of- a.) Divide wall c.) wing wall 21)- Consumptive use is the sum of b.) Soil and crop d.) soil, crop and climate b.) Core wall d.) Diaphragm wall 22)- For a crop the consumptive use of water is equal to the depth of water- a.) Transpired c.) Evaporation & transpiration b.) Evaporated d.)Used in transpiration, evaporation and evaporated from adjacent soil 23)- Field capacity of soil is given by- 24)- Find the delta for a crop if the base period is 110 days and duty= 1400 hec/cumec- a.) 0.70m b.)O.92m c.) 0.80m d.) 0.68m 25)- Consumptive irrigation requirement given by (CIR) a.) consumptive use — effective rainfall b.) CU — Re + water loss in percolation
  3. Water resource engineering -2 c.) consumptive use + effective rainfalld.) None of these 26. Net irrigation requirement is given by (NIR) (a) consumative use — effective rainfall (b) Cu+Re (c) Cu-Re+water loss in percolation (d) All of the above 27. Maximum concentration of root upto (a) 45cm to 60cm (b) 60cm to 80 cm (c)1 00cm to 120cm (d) 80cm to 100cm 28. If field capacity is 27%and permanent wilting point is 14% then the available Moisture is obtained- (a) (b) (c) (d )300/0 29.1f wheat requires about 7.5cm of water every 28 days and the base period for Wheat is 140 days find out the leave of delta for wheat (a)1 0.8cm (b)12.5cm (c)36cm (d)37.5cm 30.What do you means by for watering (a) watering the land before the crop is shown (b) the last watering of the crop (c) the first watering of crop when the crop is a few centimetres high (d) none of these Fill in the blanks 31. if the duty of base period of 120 days is 1500 heclcumilthe delta for the crop is.. 32. consumptive use is defined as... 33. base period of irrigated crop is the period from... .....to..... . the relationship b/w duty & delta.. 34. 35. the delta for a crop with a base period of 150 days is 50cm the duty for the crop will . .hectares per cumec (a) 2592 (b) 2580 (c)2292 (d) 2450 36. the relationship b/w inflow, outflow and and storage data for a reservoir (a) increase in reservoir storage = inflow- outflow (b) inflow = increase in reservoir storage — outflow (c) outflow = increase in reservoir storage + outflow (d) all of the above
  4. Water resource engineering -2 37. The design annual rainfall for the catchment of a proposed reservoir has been compute to be 99cm. the catchment of a proposed reservoir to have the mean annual temperature of 20 c. the catchment area is 1 000 sq. km. calculate annual yield. (a) 0.568 (b) 0.935 (c) 0.894 (d) 6.429 38. The ratio of area irrigated for kharif and rabi is generally taken. 39. The optimum depth of kor watering for rice crop is (a) 20 cm. (b) 22 cm. (c) 19 cm. (d) 16 cm. 40) The optimum depth of kor watering for rice crop is a)20 cm b)16 cm c)19 D)22 41) one cumec of water is pumped into a farm distribution system 0.8 cumec is deliverd to a turn out 0.9 km from the well compute the conveyance efficiency b)700/0 42) what do you mean by paleo watering c)600/0 d)900/0 a) the last watering of crop b) first watering of crop c) watering the land before the crop is shown d) none 43) what is gross commant area A) only the cultivated area b) it includes the cultivated as well as uncultivated area c) uncultivated area d) none 44) what do you mean cultivable command area A) cultivable part of gross command area c) cultivable but not cultivated portion 45) lift irrigation is flow a) By gravity b) flow low level to high level b) non cultivable part of gross command area d) both c and d c) By perculation d) sprinkler head 46) the maximum water application efficiency is in a) surface irrigation b) lift irrigation c) sprinkler irrigation d) furrow irrigation 47) cannal meant for the purpose of draining of water from water logged areas are called a) seepage cannal b) lateral c) drain d) water courses 48) khosala theory applicable to structure founded on a) rock b) any type of material c) permeable material d) none of the above 49) sugarcane according to crop period is crop a) june - oct b) nov — mach c) an overlapping period d) all 50) with increase in quantity of water supply the yield of host crops
  5. a) continusly increase Water resource engineering -2 b) continusly decrease c) increase upto certain limit then decrease d) decrease due to certain limit then decrease

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