AGRICULTURAL ENGINEERING- PAGE 4
AGRICULTURAL ENGINEERING MCQS
1. A high intensity rainfall causes severe erosion because of
(a) greater detachment of soil particles only (b) more runoff generation only
(c) better transportation of eroded soil only (d) all of the above
Ans: D
2. Which of the following aspects are kept in consideration while designing a drop structure ?
(a) Hydrologic (b) Hydraulic (c) Structural (d) All above
Ans: D
3. Contour bunds are recommended in the areas where
(a) rainfall is low (b) rainfall is high (c) soil is heavy (d) none of the above
Ans: A
4. The period for which water is supplied from canal to a crop is called
(a) base (b) duty (c) delta (d) irrigation period
Ans: A
5. Arrangement of soil particles in a soil mass is called
(a) soil texture (b) soil structure (c) infiltration (d) particle density
Ans: B
6. The factor which affects irrigation efficiency is
(a) design of irrigation system (b) degree of land preparation (c) skill and ease of irrigation (d) all of above
Ans: D
7. To carry irrigation channels across the road, the appropriate structure is
(a) culvert (b) siphon (c) spillway (d) all above
Ans: B
8. For drainage of land with concave surface or a valley at the centre, the most suitable drainage system is
(a) Herringbone system (b) Bedding system (c) Random system (d) Gridiron system
Ans: A
9. In an open channel water flows under the influence of
(a) gravity force (b) inertia force (c) suction force (d) none of the above
Ans: A
10. Pan evaporation data are recorded
(a) twice daily (b) thrice daily (c) once daily (d) once a week
Ans: C
11. For a given cross sectional area of channel, the hydraulic radius decreases with
(a) increase in wetted perimeter (b) decrease in wetted perimeter (c) decrease in flow velocity (d) increase in flow velocity
Ans: A
12. The most efficient section of open channel is
(a) semicircular (b) triangular (c) trapezoidal (d) parabolic
Ans: A
13. Tensiometers are used to measure
(a) soil organic matter (b) flow depth (c) flow velocity (d) soil moisture
Ans: D
14. The common water distribution pattern used in canal command areas of northern India is
(a) shejpali system (b) tail to tail system (c) warabandi system (d) all above
Ans: C
15. Runoff coefficient depends on
(a) nature of soil surface (b) type of land use (c) rainfall intensity (d) all the above
Ans: D
16. Free board is provided to prevent the embankment against
(a) overtopping (b) sliding (c) overturning (d) all above
Ans: A
17. The agronomic measures increase infiltration rate and thereby there is
(a) reduction in runoff (b) increase in soil erosion (c) formation of gullies (d) none of the above
Ans: A
18. Rate of increase in crop yield per unit increase in water application is known as,
(a) water use efficiency (b) irrigation response (c) project efficiency (d) gross water requirement
Ans: B
19. Strip cropping systems has alternate rows of
(a) erosion creating and erosion permitting crops (b) erosion permitting and erosion tolerating crops
(c) erosion permitting and erosion resisting crops (d) none of the above
Ans: C
20. The removal of excess water from the ground surface is called
(a) ground water flow (b) surface drainage (c) sub-surface drainage (d) water table control
Ans: B
21. According to U.S. Dept. of Agriculture, the size of particles of coarse sand varies between
(a) 2.0 to 1.0 mm (b) 1.0 to 0.5 mm (c) 0.5 to 0.25 mm (d) none of the above
Ans: B
22. The drip irrigation system is very effective in case of
(a) paddy fields (b) sugarcane fields (c) orchards (d) all of the above
Ans: C
23. Which of the following is not a permanent structure ?
(a) Drop spillway (b) Chute spillway (c) Drop inlet spillway (d) Contour bund
Ans: D
24. If the depth of flow in a river is ‘d’, then the average flow velocity occurs at a depth equal to
(a) 0.4 d from free surface (b) 0.6 d from free surface (c) 0.2 d from free surface (d) at the free surface
Ans: B
25. Graded bunds are useful in areas where
(a) rainfall is very low (b) rainfall is low (c) rainfall is high (d) none of the above
Ans: C
26. Due to shrinkage of soil during land grading, the cut-fill ratio should be
(a) greater than one (b) less than one (c) either of (a) and (b) (d) none of (a) and (b)
Ans: A
27. Advantages of minor irrigation projects are
(a) low cost (b) easily manageable (c) higher irrigation efficiency (d) all of the above
Ans: D
28. The desired cut or fill at any point can be obtained by comparing
(a) original and proposed elevations (b) original and surrounding elevations
(c) proposed and surrounding elevations (d) all of the above
Ans: A
29. Control of soil erosion is vital for
(a) sustenance of agriculture (b) maintaining crop productivity (c) control of sedimentation (d) all of the above
Ans: D
30. Mulching helps in
(a) controlling soil erosion (b) maintaining soil moisture (c) controlling weeds (d) all of the above
Ans: D
31. The drop in case of a straight drop spillway should not exceed to
(a) 5 m (b) 3 m (c) 10 m (d) 8 m
Ans: B
32. In drip irrigation system, the drippers are equipped on
(a) main line (b) sub-main line (c) lateral line (d) all above
Ans: C
33. Drip irrigation is also known as
(a) sub-surface irrigation (b) complete irrigation (c) trickle irrigation (d) surge irrigation
Ans: C
34. Void ratio of soil is also known as
(a) relative density (b) relative porosity (c) specific gravity (d) none of the above
Ans: B
35. The part of rainfall which becomes part of the water requirement of crops is known as
(a) gross rainfall (b) efficient rainfall (c) effective rainfall (d) true rainfall
Ans: C
36. The method which estimates evaporation from a free water surface by examining energy balance at the water surface is
(a) Blaney-Criddle method (b) Dalton method (c) Penman method (d) None of the above
Ans: C
37. The term extensively used to express the performance of a complete irrigation system or components of the system is called
(a) irrigation effect (b) irrigation efficiency (c) irrigation facility (d) irrigation availability
Ans: B
38. Uniformity of water application in sprinkler irrigation is affected by
(a) water temperature (b) wind velocity (c) soil characteristics (d) time of irrigation
Ans: B
39. Which of the following is a measure for reclamation of alkali soil ?
(a) Green manuring with dhaincha in summer (b) Use of gypsum (c) Provision of drainage system (d) All of the above
Ans: D
40. The primary purpose of contour farming in low rainfall areas is
(a) to increase runoff (b) to increase soil loss (c) to conserve flow energy (d) to conserve rain water
Ans: D
41. Which major nutrient is very soluble and can be expected in drainage effluent ?
(a) Nitrogen (b) Phosphorous (c) Potash (d) None of the above
Ans: A
42. In water-logged areas, when organic matter accumulates in the soil ?
(a) Before water logging (b) After water logging (c) During water logging (d) None of the above
Ans: B
43. One atmospheric pressure is equal to how many cm of water column ?
(a) 1000 cm (b) 1050 cm (c) 1023 cm (d) 1036 cm
Ans: D
44. In which type of soil, the drainage will be poor ?
(a) Sandy soils (b) Clayey soils (c) Silty soils (d) Loamy soils
Ans: B
45. Which of the following is not a salt tolerant crop ?
(a) Barley (b) Dhaincha (c) Gram (d) Spinach
Ans: C
46. Which of the following is not a water lift ?
(a) Persian wheel (b) Swing basket (c) Counterpoise (d) Turbine
Ans: D
47. One horse power is equal to
(a) 724 watts (b) 746 watts (c) 714 watts (d) 764 watts
Ans: B
48. Soil taxonomy deals with which of the following ?
(a) Principles of soil productivity (b) Principles of soil erosivity (c) Principles of soil classification (d) Principles of soil formation
Ans: C
49. Under irregular topographic field conditions which of the following strip cropping system is preferred ?
(a) Contour strip cropping system (b) Field strip cropping system (c) Buffer strip cropping system (d) Either of the above
Ans: B
50. The value of runoff coefficient normally is
(a) always more than one (b) always equal to one (c) always less than one (d) any of the above
Ans: C
(a) greater detachment of soil particles only (b) more runoff generation only
(c) better transportation of eroded soil only (d) all of the above
Ans: D
2. Which of the following aspects are kept in consideration while designing a drop structure ?
(a) Hydrologic (b) Hydraulic (c) Structural (d) All above
Ans: D
3. Contour bunds are recommended in the areas where
(a) rainfall is low (b) rainfall is high (c) soil is heavy (d) none of the above
Ans: A
4. The period for which water is supplied from canal to a crop is called
(a) base (b) duty (c) delta (d) irrigation period
Ans: A
5. Arrangement of soil particles in a soil mass is called
(a) soil texture (b) soil structure (c) infiltration (d) particle density
Ans: B
6. The factor which affects irrigation efficiency is
(a) design of irrigation system (b) degree of land preparation (c) skill and ease of irrigation (d) all of above
Ans: D
7. To carry irrigation channels across the road, the appropriate structure is
(a) culvert (b) siphon (c) spillway (d) all above
Ans: B
8. For drainage of land with concave surface or a valley at the centre, the most suitable drainage system is
(a) Herringbone system (b) Bedding system (c) Random system (d) Gridiron system
Ans: A
9. In an open channel water flows under the influence of
(a) gravity force (b) inertia force (c) suction force (d) none of the above
Ans: A
10. Pan evaporation data are recorded
(a) twice daily (b) thrice daily (c) once daily (d) once a week
Ans: C
11. For a given cross sectional area of channel, the hydraulic radius decreases with
(a) increase in wetted perimeter (b) decrease in wetted perimeter (c) decrease in flow velocity (d) increase in flow velocity
Ans: A
12. The most efficient section of open channel is
(a) semicircular (b) triangular (c) trapezoidal (d) parabolic
Ans: A
13. Tensiometers are used to measure
(a) soil organic matter (b) flow depth (c) flow velocity (d) soil moisture
Ans: D
14. The common water distribution pattern used in canal command areas of northern India is
(a) shejpali system (b) tail to tail system (c) warabandi system (d) all above
Ans: C
15. Runoff coefficient depends on
(a) nature of soil surface (b) type of land use (c) rainfall intensity (d) all the above
Ans: D
16. Free board is provided to prevent the embankment against
(a) overtopping (b) sliding (c) overturning (d) all above
Ans: A
17. The agronomic measures increase infiltration rate and thereby there is
(a) reduction in runoff (b) increase in soil erosion (c) formation of gullies (d) none of the above
Ans: A
18. Rate of increase in crop yield per unit increase in water application is known as,
(a) water use efficiency (b) irrigation response (c) project efficiency (d) gross water requirement
Ans: B
19. Strip cropping systems has alternate rows of
(a) erosion creating and erosion permitting crops (b) erosion permitting and erosion tolerating crops
(c) erosion permitting and erosion resisting crops (d) none of the above
Ans: C
20. The removal of excess water from the ground surface is called
(a) ground water flow (b) surface drainage (c) sub-surface drainage (d) water table control
Ans: B
21. According to U.S. Dept. of Agriculture, the size of particles of coarse sand varies between
(a) 2.0 to 1.0 mm (b) 1.0 to 0.5 mm (c) 0.5 to 0.25 mm (d) none of the above
Ans: B
22. The drip irrigation system is very effective in case of
(a) paddy fields (b) sugarcane fields (c) orchards (d) all of the above
Ans: C
23. Which of the following is not a permanent structure ?
(a) Drop spillway (b) Chute spillway (c) Drop inlet spillway (d) Contour bund
Ans: D
24. If the depth of flow in a river is ‘d’, then the average flow velocity occurs at a depth equal to
(a) 0.4 d from free surface (b) 0.6 d from free surface (c) 0.2 d from free surface (d) at the free surface
Ans: B
25. Graded bunds are useful in areas where
(a) rainfall is very low (b) rainfall is low (c) rainfall is high (d) none of the above
Ans: C
26. Due to shrinkage of soil during land grading, the cut-fill ratio should be
(a) greater than one (b) less than one (c) either of (a) and (b) (d) none of (a) and (b)
Ans: A
27. Advantages of minor irrigation projects are
(a) low cost (b) easily manageable (c) higher irrigation efficiency (d) all of the above
Ans: D
28. The desired cut or fill at any point can be obtained by comparing
(a) original and proposed elevations (b) original and surrounding elevations
(c) proposed and surrounding elevations (d) all of the above
Ans: A
29. Control of soil erosion is vital for
(a) sustenance of agriculture (b) maintaining crop productivity (c) control of sedimentation (d) all of the above
Ans: D
30. Mulching helps in
(a) controlling soil erosion (b) maintaining soil moisture (c) controlling weeds (d) all of the above
Ans: D
31. The drop in case of a straight drop spillway should not exceed to
(a) 5 m (b) 3 m (c) 10 m (d) 8 m
Ans: B
32. In drip irrigation system, the drippers are equipped on
(a) main line (b) sub-main line (c) lateral line (d) all above
Ans: C
33. Drip irrigation is also known as
(a) sub-surface irrigation (b) complete irrigation (c) trickle irrigation (d) surge irrigation
Ans: C
34. Void ratio of soil is also known as
(a) relative density (b) relative porosity (c) specific gravity (d) none of the above
Ans: B
35. The part of rainfall which becomes part of the water requirement of crops is known as
(a) gross rainfall (b) efficient rainfall (c) effective rainfall (d) true rainfall
Ans: C
36. The method which estimates evaporation from a free water surface by examining energy balance at the water surface is
(a) Blaney-Criddle method (b) Dalton method (c) Penman method (d) None of the above
Ans: C
37. The term extensively used to express the performance of a complete irrigation system or components of the system is called
(a) irrigation effect (b) irrigation efficiency (c) irrigation facility (d) irrigation availability
Ans: B
38. Uniformity of water application in sprinkler irrigation is affected by
(a) water temperature (b) wind velocity (c) soil characteristics (d) time of irrigation
Ans: B
39. Which of the following is a measure for reclamation of alkali soil ?
(a) Green manuring with dhaincha in summer (b) Use of gypsum (c) Provision of drainage system (d) All of the above
Ans: D
40. The primary purpose of contour farming in low rainfall areas is
(a) to increase runoff (b) to increase soil loss (c) to conserve flow energy (d) to conserve rain water
Ans: D
41. Which major nutrient is very soluble and can be expected in drainage effluent ?
(a) Nitrogen (b) Phosphorous (c) Potash (d) None of the above
Ans: A
42. In water-logged areas, when organic matter accumulates in the soil ?
(a) Before water logging (b) After water logging (c) During water logging (d) None of the above
Ans: B
43. One atmospheric pressure is equal to how many cm of water column ?
(a) 1000 cm (b) 1050 cm (c) 1023 cm (d) 1036 cm
Ans: D
44. In which type of soil, the drainage will be poor ?
(a) Sandy soils (b) Clayey soils (c) Silty soils (d) Loamy soils
Ans: B
45. Which of the following is not a salt tolerant crop ?
(a) Barley (b) Dhaincha (c) Gram (d) Spinach
Ans: C
46. Which of the following is not a water lift ?
(a) Persian wheel (b) Swing basket (c) Counterpoise (d) Turbine
Ans: D
47. One horse power is equal to
(a) 724 watts (b) 746 watts (c) 714 watts (d) 764 watts
Ans: B
48. Soil taxonomy deals with which of the following ?
(a) Principles of soil productivity (b) Principles of soil erosivity (c) Principles of soil classification (d) Principles of soil formation
Ans: C
49. Under irregular topographic field conditions which of the following strip cropping system is preferred ?
(a) Contour strip cropping system (b) Field strip cropping system (c) Buffer strip cropping system (d) Either of the above
Ans: B
50. The value of runoff coefficient normally is
(a) always more than one (b) always equal to one (c) always less than one (d) any of the above
Ans: C
51. In a field contour lines are obtained by joining the points of
(a) same rainfall (b) same elevation (c) same erosion (d) same infiltration
Ans: B
52. Gully plugs help in
(a) reducing infiltration (b) reducing flow velocity (c) reducing sediment deposition (d) reducing percolation
Ans: B
53. Hygrophilic soils are those which
(a) condense water (b) repulse water (c) release water (d) attract water
Ans: D
54. Seepage force always acts in
(a) only in upward direction (b) opposite direction to flow (c) in the direction of flow (d) only in the downward direction
Ans: C
55. In the design of a drop structure which of the following force is considered ?
(a) Gravitational forces (b) Viscous forces (c) Frictional forces (d) Drag forces
Ans: A
56. Straight and parallel contour lines represent
(a) uniformly sloping undulating surface (b) uniformly sloping plane surface (c) undulating surface (d) none of the above
Ans: B
57. In open channels, the flow is due to
(a) pressure difference (b) elevation difference (c) velocity difference (d) all of the above
Ans: B
58. Estimation of design discharge is done in
(a) hydraulic design (b) structural design (c) hydrologic design (d) final design
Ans: C
59. In contour cultivation tillage operations are performed
(a) normal to the contours of the field (b) along the contours of the field
(c) across the contours of the field (d) in any direction
Ans: B
60. Which of the following is not a system of recording levels in the field book ?
(a) Height of instrument method (b) Collimation method (c) Rise and fall method (d) Black and white method
Ans: D
61. Up and down the slope farming results in
(a) minimizing soil erosion (b) increasing soil erosion (c) improving moisture conservation (d) none of the above
Ans: B
62. The term “EROSIVITY” refers to
(a) erosive time of rain (b) erosive potential of rain (c) erosive resistance of rain (d) none of the above
Ans: B
63. The critical state of flow occurs when the value of Froude number is
(a) more than one (b) less than one (c) equal to one (d) all above
Ans: C
64. In an open channel when flow depth at a section changes with time, the flow is said to be
(a) uniform flow (b) unsteady flow (c) irregular flow (d) critical flow
Ans: B
65. The carburetor is main part of Engine-
A) Diesel Engine B) Steam Engine C) Petrol Engine D) Gas Engine
Ans: C
66. Which weir is used to measure high discharge?
A) Rectangular weir B) Trapezoidal weir C) Triangular weir D) None of these
Ans: A
67. Water can be measured on volume basis if it is…
A) At rest B) In motion C) At rest and In motion D) None of these
Ans: A
68. Open impeller is made by?
A) Mild steel B) Cast iron C) Forged steel D) Stainless steel
Ans: C
69. Which type of nozzle is most commonly used for herbicide application?
A) Flood jet
B) Flat fan
C) Solid cone
D) Centrifugal type
Ans: B
70. Which of the following machine is not good for zero- till planting of crop under surface residue condition?
A) Turbo happy seeder B) Rotary disc drill C) Double disc drill D) Tyne opener zero till drill
Ans: B
71. Drainage of 1 ha cm in 24 hours equals drainage of-
A) 1.157 lps B) 0.117 lps C) 2.7 lps D) 2 lps
Ans: A
72. The ratio between area of crop irrigated and quantity of water applied crop is termed as?
A) Duty B) Delta C) Base period D) Irrigation quotient
Ans: B
73. The wind velocity is measured by
A) Current meter B) Hydrometer C) Anemometer D) None of these
Ans: C
74. Which harrow is also called "bakhar"
A) Disc harow B) Spike tooth harow C) Spring tooth D) Blade harow
Ans: D
75. ________ is a precision levelling equipment for fine levelling of agricultural fields with desired slope.
(A) Dozer (B) Laser guided leveler (C) Scraper (D) Land plane
Ans: B
76. Which of the following is a selective herbicide ?
(A) Glyphosate (B) Glyphosinate Ammonium (C) 2, 4 – D (D) All of these
Ans: C
77. The raised ridge left at the centre of the strip of land, when ploughing is done from centre to side is called
(A) Dead furrow (B) Back furrow (C) Head land (D) None of these
Ans: B
78. The percentage of unthreshed grains from all outlets with respect to the total grain input in a thresher by weight is called
(A) Cylinder loss (B) Sieve loss (C) Blower loss (D) Visible loss
Ans: A
79. ER90/KMB200 is a model of
(A) Tractor (B) Power tiller (C) Transplanter (D) Power sprayer
Ans: B
80. The vertical suction of a walking type mould board plough is
(A) 3 – 5 mm (B) 5 – 6 mm (C) 8 – 10 mm (D) 7 – 11 mm
Ans: A
81. __________ type of pumps are used in sprayers to develop the required pressure.
(A) Positive displacement (B) Centrifugal (C) Radial flow (D) None of these
Ans: A
82. The point at which the resultant of all the horizontal and vertical forces act in a tractor operated plough is
(A) Centre of gravity (B) Centre of pull (C) Centre of resistance (D) Centre of power
Ans: C
83. __________ is mostly used in power tillers
(A) Dog clutch (B) Fluid coupling (C) Cone clutch (D) None of these
Ans: A
84. The power requirement of a self-propelled combine harvester is
(A) 8 hp per metre width of cut (B) 10 hp per metre width of cut (C) 12 hp per metre width of cut (D) 6 hp per metre width of cut
Ans: C
85. The dimensional homogeneity coefficient of a spray is given by the ratio
(A) VMD/2 (B) NMD/2 (C) VMD/NMD (D) None of these
Ans: C
86. The angle made by the cutter bar to the direction of motion in a mower is
(A) 20° (B) 88° (C) 80° (D) 25°
Ans: B
87. Spray nozzle flow rate is a function of
(A) Nozzle type (B) Orifice size (C) Pressure (D) All of these
Ans: D
88. The volume of spray in low volume sprayers ranges from
(A) 5 – 200 I/ha (B) 5 – 400 I/ha (C) 50 – 200 I/ha (D) 50 – 400 I/ha
Ans: B
89. In a laser leveler the received signal is converted to cut and fill adjustments of the scraper automatically by a
(A) Two way hydraulic valve (B) One way hydraulic valve (C) Sensor (D) None of these
Ans: A
90. The commonly used metering mechanism in potato planters is
(A) Cell feed (B) Picker wheel (C) Gravity feed (D) Cup feed
Ans: B
91. __________ is the ratio of peripheral velocity to speed of travel in a combine harvester.
(A) Reel index (B) Reel capacity (C) Speed index (D) Feed index
Ans: A
92. The type of cultivator in which the tynes are lifted when they hit an obstacle is
(A) Spike tooth cultivator (B) Spring tyne cultivator (C) Peg tooth cultivator (D) All of these
Ans: B
93. A manually operated sprayer that is also used for spraying in orchards and plantation crops is
(A) Knapsack sprayer (B) Hand compression (C) Rocker sprayer (D) All of these
Ans: C
94. The number of cutting blades in a manually operated flywheel type chaff cutter is
(A) 4 (B) 1 (C) 2 (D) 3
Ans: C
95. The process of detaching grains from earheads is known as
(A) Reaping (B) Harvesting (C) Winnowing (D) None of these
Ans: D
96. The portion of the pump casing through which pump shaft extends, with a seal to prevent leakage is called
(A) Suction box (B) Stuffing box (C) Casing (D) None of these
Ans: B
97. ________ is usecd to provide spacing between discs of a disc harrow.
(A) Arbor bolt (B) Spool (C) Gang (D) Scraper
Ans: B
98. As per Indian Standards, the Test Code for power tillers is
(A) IS : 9935 (B) IS : 13539 (C) IS : 5994 (D) IS : 9253
Ans: A
99. The _________ of a disc plough affects the pulverization and throw of furrow slice.
(A) Disc angle (B) Tilt angle (C) Throat clearance (D) Diameter
Ans: B
100. The part of a mould board plough that supports the plough bottom against the furrow wall is
(A) Frog (B) Wing of share (C) Gunnel of share (D) Point of share __________
Ans: C
(a) same rainfall (b) same elevation (c) same erosion (d) same infiltration
Ans: B
52. Gully plugs help in
(a) reducing infiltration (b) reducing flow velocity (c) reducing sediment deposition (d) reducing percolation
Ans: B
53. Hygrophilic soils are those which
(a) condense water (b) repulse water (c) release water (d) attract water
Ans: D
54. Seepage force always acts in
(a) only in upward direction (b) opposite direction to flow (c) in the direction of flow (d) only in the downward direction
Ans: C
55. In the design of a drop structure which of the following force is considered ?
(a) Gravitational forces (b) Viscous forces (c) Frictional forces (d) Drag forces
Ans: A
56. Straight and parallel contour lines represent
(a) uniformly sloping undulating surface (b) uniformly sloping plane surface (c) undulating surface (d) none of the above
Ans: B
57. In open channels, the flow is due to
(a) pressure difference (b) elevation difference (c) velocity difference (d) all of the above
Ans: B
58. Estimation of design discharge is done in
(a) hydraulic design (b) structural design (c) hydrologic design (d) final design
Ans: C
59. In contour cultivation tillage operations are performed
(a) normal to the contours of the field (b) along the contours of the field
(c) across the contours of the field (d) in any direction
Ans: B
60. Which of the following is not a system of recording levels in the field book ?
(a) Height of instrument method (b) Collimation method (c) Rise and fall method (d) Black and white method
Ans: D
61. Up and down the slope farming results in
(a) minimizing soil erosion (b) increasing soil erosion (c) improving moisture conservation (d) none of the above
Ans: B
62. The term “EROSIVITY” refers to
(a) erosive time of rain (b) erosive potential of rain (c) erosive resistance of rain (d) none of the above
Ans: B
63. The critical state of flow occurs when the value of Froude number is
(a) more than one (b) less than one (c) equal to one (d) all above
Ans: C
64. In an open channel when flow depth at a section changes with time, the flow is said to be
(a) uniform flow (b) unsteady flow (c) irregular flow (d) critical flow
Ans: B
65. The carburetor is main part of Engine-
A) Diesel Engine B) Steam Engine C) Petrol Engine D) Gas Engine
Ans: C
66. Which weir is used to measure high discharge?
A) Rectangular weir B) Trapezoidal weir C) Triangular weir D) None of these
Ans: A
67. Water can be measured on volume basis if it is…
A) At rest B) In motion C) At rest and In motion D) None of these
Ans: A
68. Open impeller is made by?
A) Mild steel B) Cast iron C) Forged steel D) Stainless steel
Ans: C
69. Which type of nozzle is most commonly used for herbicide application?
A) Flood jet
B) Flat fan
C) Solid cone
D) Centrifugal type
Ans: B
70. Which of the following machine is not good for zero- till planting of crop under surface residue condition?
A) Turbo happy seeder B) Rotary disc drill C) Double disc drill D) Tyne opener zero till drill
Ans: B
71. Drainage of 1 ha cm in 24 hours equals drainage of-
A) 1.157 lps B) 0.117 lps C) 2.7 lps D) 2 lps
Ans: A
72. The ratio between area of crop irrigated and quantity of water applied crop is termed as?
A) Duty B) Delta C) Base period D) Irrigation quotient
Ans: B
73. The wind velocity is measured by
A) Current meter B) Hydrometer C) Anemometer D) None of these
Ans: C
74. Which harrow is also called "bakhar"
A) Disc harow B) Spike tooth harow C) Spring tooth D) Blade harow
Ans: D
75. ________ is a precision levelling equipment for fine levelling of agricultural fields with desired slope.
(A) Dozer (B) Laser guided leveler (C) Scraper (D) Land plane
Ans: B
76. Which of the following is a selective herbicide ?
(A) Glyphosate (B) Glyphosinate Ammonium (C) 2, 4 – D (D) All of these
Ans: C
77. The raised ridge left at the centre of the strip of land, when ploughing is done from centre to side is called
(A) Dead furrow (B) Back furrow (C) Head land (D) None of these
Ans: B
78. The percentage of unthreshed grains from all outlets with respect to the total grain input in a thresher by weight is called
(A) Cylinder loss (B) Sieve loss (C) Blower loss (D) Visible loss
Ans: A
79. ER90/KMB200 is a model of
(A) Tractor (B) Power tiller (C) Transplanter (D) Power sprayer
Ans: B
80. The vertical suction of a walking type mould board plough is
(A) 3 – 5 mm (B) 5 – 6 mm (C) 8 – 10 mm (D) 7 – 11 mm
Ans: A
81. __________ type of pumps are used in sprayers to develop the required pressure.
(A) Positive displacement (B) Centrifugal (C) Radial flow (D) None of these
Ans: A
82. The point at which the resultant of all the horizontal and vertical forces act in a tractor operated plough is
(A) Centre of gravity (B) Centre of pull (C) Centre of resistance (D) Centre of power
Ans: C
83. __________ is mostly used in power tillers
(A) Dog clutch (B) Fluid coupling (C) Cone clutch (D) None of these
Ans: A
84. The power requirement of a self-propelled combine harvester is
(A) 8 hp per metre width of cut (B) 10 hp per metre width of cut (C) 12 hp per metre width of cut (D) 6 hp per metre width of cut
Ans: C
85. The dimensional homogeneity coefficient of a spray is given by the ratio
(A) VMD/2 (B) NMD/2 (C) VMD/NMD (D) None of these
Ans: C
86. The angle made by the cutter bar to the direction of motion in a mower is
(A) 20° (B) 88° (C) 80° (D) 25°
Ans: B
87. Spray nozzle flow rate is a function of
(A) Nozzle type (B) Orifice size (C) Pressure (D) All of these
Ans: D
88. The volume of spray in low volume sprayers ranges from
(A) 5 – 200 I/ha (B) 5 – 400 I/ha (C) 50 – 200 I/ha (D) 50 – 400 I/ha
Ans: B
89. In a laser leveler the received signal is converted to cut and fill adjustments of the scraper automatically by a
(A) Two way hydraulic valve (B) One way hydraulic valve (C) Sensor (D) None of these
Ans: A
90. The commonly used metering mechanism in potato planters is
(A) Cell feed (B) Picker wheel (C) Gravity feed (D) Cup feed
Ans: B
91. __________ is the ratio of peripheral velocity to speed of travel in a combine harvester.
(A) Reel index (B) Reel capacity (C) Speed index (D) Feed index
Ans: A
92. The type of cultivator in which the tynes are lifted when they hit an obstacle is
(A) Spike tooth cultivator (B) Spring tyne cultivator (C) Peg tooth cultivator (D) All of these
Ans: B
93. A manually operated sprayer that is also used for spraying in orchards and plantation crops is
(A) Knapsack sprayer (B) Hand compression (C) Rocker sprayer (D) All of these
Ans: C
94. The number of cutting blades in a manually operated flywheel type chaff cutter is
(A) 4 (B) 1 (C) 2 (D) 3
Ans: C
95. The process of detaching grains from earheads is known as
(A) Reaping (B) Harvesting (C) Winnowing (D) None of these
Ans: D
96. The portion of the pump casing through which pump shaft extends, with a seal to prevent leakage is called
(A) Suction box (B) Stuffing box (C) Casing (D) None of these
Ans: B
97. ________ is usecd to provide spacing between discs of a disc harrow.
(A) Arbor bolt (B) Spool (C) Gang (D) Scraper
Ans: B
98. As per Indian Standards, the Test Code for power tillers is
(A) IS : 9935 (B) IS : 13539 (C) IS : 5994 (D) IS : 9253
Ans: A
99. The _________ of a disc plough affects the pulverization and throw of furrow slice.
(A) Disc angle (B) Tilt angle (C) Throat clearance (D) Diameter
Ans: B
100. The part of a mould board plough that supports the plough bottom against the furrow wall is
(A) Frog (B) Wing of share (C) Gunnel of share (D) Point of share __________
Ans: C