1) Natural air-drying needs dehumidification if the atmospheric humidity exceeds: a. 30% b. 50% c. 70% d. 80%
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2) Natural airflow takes place in the dryer due to variation in: a. Air moisture b. Air temperature c. Air-pressure d. Volume of air
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3) Air temperature in solar drying in comparison to sun drying is: a. Equal b. Low c. High d. None of these
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4) Solar energy reaching per square metre of the earth atmosphere is called: a. Solar coefficient b. Solar constant c. Solar radiation d. All are correct
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5) A moisture content of threshed paddy which is sun dried on floor is upto: a. 8-10% b. 10-11% c. 13-14% d. 15-16%
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6) The operational life of a pair of rubber rolls is estimated at: a. 80 tonne b. 90 tonnes c. 100 tonne d. 120 tonnes
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7) Hardness of rice endosperm ranges from: a. 5 to 7 kg/mm2 b. 8.5 to 10 kg/mm2 c. 11.5 to 14.5 kg/mm2 d. 12.5 to 16.5 kg/mm2
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8) Hot pulses are tempered in the tempering bin after each pass for: a. 4 hours b. 6 hours c. 48 hours d. 10 hours
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9) Recovery of dhal in each pass is reduced by: a. 0.5-0.7% b. 0.8-1.1% c. 11.5-2.0% d. 1.0-3.5%
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10) In dry milling of pulses with seed oil treatment, oils is used at a rate of: a. 0.5 to 1.5 kg/tonne b. 1.5 to 2.5 kg/tonne c. 2.5 to 3.5 kg/tonne d. 3.5 to 1.5 kg/tonne
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11) In dry milling the percentage of pulse dehusked in one pass or single operation is: a. 40% b. 50% c. 60% d. 70%
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12) In bullock driven wooden ghani, the percent oil loss (left in cake) is: a. 7-8% b. 10-11% c. 13-15% d. 16-18%
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13) In power driven iron ghani, the percentage oil loss (left in cake) is: a. 4.60% b. 7.5-8.5% c. 10.5-11.5% d. 12.5-13.5%
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14) In hydraulic press ghani, the percent oil loss (left in cake) is: a. 3-6% b. 7-8% c. 8-10% d. 10-11%
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15) The storage life of non-perishable fruits exceed by: a. 8 weeks b. 10 weeks c. 12 weeks d. 14 weeks
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16) During processing of fruits and vegetables, transportation losses occurs in as: a. 15% b. 20% c. 25% d. 30%
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17) The total depth of water application to the crop is called: a. Duty b. Delta c. Base d. None of these
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18) A period in days for which water applied to a crop is: a. Duty b. Delta c. Base d. None of these
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||||
19) The actual area irrigated in a year from outlet is: a. Irrigation period b. Intensity of irrigation c. Irrigation frequency d. None of these
|
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20) The upper strata of the earth where the openings are partially filled with water is: a. Zone of fracture b. Zone of aeration c. Zone of saturation d. None of these
|
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21) An aquifer is a permeable bed only partly filled with water and overlying a relatively impervious layer is: a. Pheratic aquifer b. Water-table aquifer c. None artesian aquifer d. All of these
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22) The upper strata of the earth where the openings are completely filled with water are: a. Zone of fracture b. Zone of aeration c. Zone of saturation d. None of these
|
||||
23) When a well is dug in water table aquifer the static water level in the well stands at: a. Upper elevation of water table b. Same elevation of term c. Lower elevation of water table d. None of these
|
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24) A aquifer found between impermeable layer is: a. Non-artsian aquifer b. Artesian aquifer c. Unconfined aquifer d. Free aquifer
|
||||
25) The pressure of water in confined aquifer is: a. Above atmospheric pressure b. At atmospheric pressure c. Below atmospheric pressure d. All are correct
|
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26) In artesian aquifer the elevation to which water level rises in wall is: a. Water-table level b. Piezometric level c. Piezometric head d. Piezometric surface
|
||||
27) A completely saturated aquifer is: a. Free aquifer b. Artesian aquifer c. Leaky aquifer d. Non-artesian aquifer
|
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28) In artesian aquifer, te imaginary surface representing artesian pressure is: a. Water table pressure b. Piezometric level c. Peizometric head d. Piezometric surface
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||||
29) In semi-confined aquifer, when there is time lag between lowering of two water levels is: a. Semi-confined aquifer with prompt yield b. Semi-confined aquifer with delayed yield c. Both (a) and (b) d. None of these
|
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30) A perched water-table is a special case of: a. Artesian aquifer b. Non-artesian aquifer c. Confined aquifer d. Non-confined aquifer
|
||||
31) The properties of aquifer may be expressed in terms of: a. Hydraulic conductivity b. Transmissibility c. Specific yield d. All are correct
|
||||
32) In semi-confined aquifer with prompt yield, the pheratic level is lowered when: a. Simultaneously lowered with piezometric level b. Simultaneously increased with piezometric level c. No change in piezometric level d. None of these
|
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33) Leakage factor is the property of: a. Confined aquifer b. Semi-confined aquifer c. Unconfined aquifer d. All are correct
|
||||
34) Specific yield is the property of: a. Confined aquifer b. Semi confined aquifer c. Unconfined aquifer d. All are correct
|
||||
35) The value of leakage factor for semi or pervious layer ranges between: a. 100 and 1000 min b. 100 and 10000 min c. 100 and 100000 min d. 100 and 1000000 min
|
||||
36) The water level stands in the well before pumping is: a. Static water level b. Pumping water level c. Piezometric level d. Draw down
|
||||
37) The difference between static water level and pumping water level is known as: a. Drawdown b. Well yield c. Specfic capacity d. All are correct
|
||||
38) The volume of water discharged per unit time is: a. Drawdown b. Well yield c. Specific capacity d. All are correct
|
||||
39) Arch median screw is: a. Low head water lift b. Medium head water lift c. High head water lift d. All are correct
|
||||
40) Specific speed of pump expresses relationship between: a. Pump speed b. Pump discharge c. Total head d. All are correct
|
||||
41) A 24-litre capacity bucket is filled in 12 seconds by the discharge of Persian wheel, then the rate of flow is: a. 2 lit/min b. 20 lit/min c. 120 lit/min d. None of these
|
||||
42) A Persian wheel with an average discharge of 230 lit/min irrigates one-hectare wheat crop in 50 hours. The average depth of irrigation is: a. 6.9 cm b. 7.2 cm c. 9.0 cm d. 9.6 cm
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||||
43) The device used for measuring discharge of irrigation channel, well or canal outlet is called: a. Weir b. Notch c. Meter gate d. All are correct
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44) A sheet of water, which overflows a weir, is: a. Head b. Nape c. Both (a) and (b) d. None of these
|
||||
45) The basic formula to calculate the discharge through weir is: a. Q = CLH b. Q = CLHm c. Q = LHm d. None of these
|
||||
46) A contracted trapezoidal weir in which each side of the notch has a slope of horizontal 1 to 4 vertical is: a. Trapezoidal weir b. Cipoletti weir c. Rectangular weir d. V-notch
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47) A cipoletti weir has a breadth of 60 cm at its crest and head of water flowing over the crest is 30 cm, the discharge of weir will be: a. 180 lit/sec b. 180 lit/min c. 186 lit/sec d. 183 lit/min
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||||
48) An open channel flow in which flow characteristic at any poi8nt do not change with: a. Steady flow b. Unsteady flow c. Uniform flow d. Non-uniform flow
|
||||
49) The common conservation measures for agricultural lands are: a. Bunding and broad based terracing b. Bench terracing c. Contour trenching d. All are correct
|
||||
50) The velocity of flow in open channel is determined by: a. Darcy's formula b. Manning's formula c. Both (a) and (b) d. None of these
|
||||
51) A brick or stone masonry linings are recommended for lining watercourses from channels where discharge is: a. Less than 30 lit/sec b. More than 30 lit/min c. Only 30 lit/sec d. None of these
|
||||
52) A structure used to carry out irrigation water across the stream, canals, gullies and other natural depression is: a. Weir b. Notch c. Flume d. Gate
|
||||
53) A recommended safe limit of land slope for efficient irrigation in heavy soil is: a. 0.05 to 0.25 % b. 0.20 to 0.40% c. 0.25 to 0.65% d. All are correct
|
||||
54) The relative proportion of sand, clay and silt determines: a. Soil structure b. Soil texture c. Soil mass d. Soil volume
|
||||
55) The particle size of clay according to USWA is: a. 0.002 mm b. <0.002 mm c. 0.002 to 0.05 mm d. 0.5 to 1.0 mm
|
||||
56) The particle size of silt according to USWA is: a. >0.002 mm b. <0.002 mm c. 0.002 to 0.05 mm d. 0.25 to 0.5 mm
|
||||
57) To particle size of gravel according to USWA is: a. 0.5 to 1 mm b. 1 to 2 mm c. <2 mm d. >2 mm
|
||||
58) The porosity index of relative volume of pores is influenced by: a. Texture b. Structure c. Both (a) and (b) d. None of these
|
||||
59) In case of porosity the volume of pores may change: a. With volume change of voids b. With volume change of solids c. Without volume change of solids d. All are correct
|
||||
60) The porosity of sandy soil usually ranges from: a. 30 to 35% b. 35 to 50% c. 40 to 60% d. 50 to 60%
|