Agriculture MCQsPreparation for Agriculture Officer
Agri-MCQs # 16: Agri-Engineering/ Irrigation and Soil Science
Last updated on March 18th, 2021 at 09:03 pm
| 701 | A hydraulic jump occurs when there is break in grade from a_________________. a- mild slope to steep slope b- steep slope to mild slope c- steep slope to steeper slope d- mild slope to milder slope | b | ID |
| 702 | Ferrous material are separated from other using their ____ properties a- Chemical properties b- magnetic properties c- conduction | b | SEE |
| 703 | In multi cylinder engines, the pistons connected to the same crank shaft, so that, the___________. a-Power strokes can occur more often b- Motion will be uniform c-Efficiency will be more d- Both (a& b) | d | FMP |
| 704 | The pressure measured with the help of a piezometer tube is_______________. a- atmospheric pressure b- gauge pressure c- absolute pressure d- vacuum pressure | b | ID |
| 705 | Angle measuring instrument is__________. a-Passometer b- Clinometers c- Compass d- All of above | c | SEE |
| 706 | Per unit power requirement is less in case of___________. a-Primary tillage operations b-Secondary tillage operations c-Harrowing and hoeing d-Both (b &c) | d | FMP |
| 707 | The relationship between the duty D in ha/cumec, the water depth Δ in cm, and base period B in days, is given by:Δ___________________ a- D = 864 B/Δ b- D = 8.64 B/Δ c- D = 864 Δ/B d- D = 8.64 V/B | a | ID |
| 708 | When a series of connected lines do not form a closed circuit__________. a- Closed traverse b- open traverse c- both a and b d- none of above | b | SEE |
| 709 | In normal operation the part of the exhaust valve that gets the hottest is_______. a- Face b- Middle of Stem c- Centre of head d- Edge of margin | c | FMP |
| 710 | A lined alluvial canal in best designed on the basis of______________. a-Lacey’s formula b- Kennedy’s formula c- Manning’s formula d- Continuity equation | c | ID |
| 711 | System in which Newton’s law are applicable is_______ . a-natural system b-Inertial system c-non inertial system d-none | b | SEE |
| 712 | An engine, in which working substance is steam, is called______________. a-I.C. engine b- Engine c- Steam engine d- Heat engine | b | FMP |
| 713 | The safety of hydraulic structure founded on pervious foundation can be ensured by providing ____________________. a- sufficient length on its concrete floor b- sufficient depth on its concrete floor c- a downstream cutoff of some reasonable depth d- all of the above | d | ID |
| 714 | A magnetic needle is suspended freely, unaffected by magnetic substances, it indicate a direction__________. a- True meridian b- magnetic meridian c- arbitrary meridian d- grid meridian | b | SEE |
| 715 | Hand tools operated by men are with a________________. a-Pulling motion b-Pushing motion c-Swinging motion d-All above | d | FMP |
| 716 | The canal regulator, which is constructed at a diversion headworks, is called_______. a- cross regulator b- distributary head regulator c- canal module d- none of the above | d | ID |
| 717 | The angles between adjacent sides are fixed by prismatic compass is called__________. a- Chain traversing b- compass traversing c- theodolite traversing d- plane table traversing | b | SEE |
| 718 | In an operating engine, the hottest part of the piston is the___________. a- Head b- Ring grooves c- Skirt d- Pin bosses | a | FMP |
| 719 | A land is known as waterlogged when__________________________. a- pH of soil reaches a value of 8.5 b- soil in root zone has high salinity c- soil pores in root zone are saturated with water d- there is water flowing on the land surface | c | ID |
| 720 | The bearing of line measured in the direction of opposite to survey is__________. a- Fore bearing b- back bearing c- both a and b d- none of above | b | SEE |
| 721 | The fuel, used in steam engine, is___________. a- Coal b- Water c- Steam d- Water & coal | a | FMP |
| 722 | In Theis method, W(u) is called as______________________. a- Water table b- Well function c- Drawdown d- none of these | b | ID |
| 723 | The staff reading taken on a point of known elevation is known as_____ a- FS reading b- BS reading c- IS reading d- none of above | b | SEE |
| 724 | In fluted feed type seed metering device the shaft is rotated through__________. a-Feed cups b-Chain c-Gear d-PTO | a | FMP |
| 725 | Minimum energy required by a pump to avoid cavitation is___________________. a- NPSH b- NPHSA c- NPSHR d- energy loss in overcoming friction | c | ID |
| 726 | EarlyBird launched in__________. a-1988 b-1999 c-2000 d-2001 | b | SEE |
| 727 | The size of an engine cylinder is referred to in terms of its_____________. a- Diameter and bore b- Bore and length c- Bore and stroke d- None of the Above | c | FMP |
| 728 | The advantage of drip irrigation system over sprinkler irrigation system may be used in___________________. a- Undulating areas b- Saline soils c- Windy areas d- Cash crops | c | ID |
| 729 | If time contact decreases disinfection will be__________. a- decrease b- increases c- constant d- none of these | a | SEE |
| 730 | In external combustion engines, the condenser is located_________-. a-Between pump and cylinder b- At the top of engine b-t the outside of engine d- Anywhere in the body | a | FMP |
| 731 | The sequent-depth ratio in a hydraulic jump formed in horizontal rectangular channel is 16.48. The Froude number of the supercritical stream is________________. a- 8.0 b- 4.0 c- 20.0 d- 12.0 | d | ID |
| 732 | Single liners are not consist of__________. a- clay b-Geosynthetic clay c- Concrete d- A geomembrane | c | SEE |
| 733 | For sowing potato, the best metering device is_____________. a-Picker wheel type b-Fluted roller type c-Auger feed type d-Brush feed type | a | FMP |
| 734 | A manometer is used to measure________________. a- positive pressure c- negative pressure c- atmospheric pressure d- both ‘a’ and ‘b’ | d | ID |
| 735 | Rods used for ranging are__________. a- Staff rod b- ranging rod c- both a and b d- none of above | b | SEE |
| 736 | The amount of air fuel mixture taken in by the engine on the suction stroke is a measure of the engine’s_______________. a- Compression ratio b- Volumetric efficiency c- Clearance volume d- None of the Above | b | FMP |
| 737 | Consumptive use of water for a crop represents________________. a- The transpiration needs of the crop b- evaporation needs of the cropped area c-evapotrainspiration needs of the cropped area plus the minor quantity required in plant metabolism d- None of the above | c | ID |
| 738 | Factor which is not affecting rate of heat conduction__________. a- Quantity of heat b- cross sectional area c- length of conductor d- rate of heat flow | c | SEE |
| 739 | To-and-fro motion of the piston is converted to___________. a-Rotator motion by the crank shaft b- Linear motion c-Linear motion in wheel by the crankshaft d- None of the above | a | FMP |
| 740 | Lining of channels increases____________. a- water logging b- channel cross section c- command area d- chances of breaching | c | ID |
| 741 | The standard size of brick used in Pakistan is in inches__________. a- 9*4*3 b- 10*5*4 c- 22*8*6 d- 20*6*8 | a | SEE |
| 742 | In seed drill, the picker wheel mechanism is associated to__________. a-Furrow opener b-Power transmission c-Fertilizer drilling system d-Seed metering device | d | FMP |
| 743 | The critical exit gradient suggested by Khosla,s theory of design of weirs and barrages is____________________. a- less for more porous soils b- more for more porous soils c- equal for all kinds of soils d- none of them | a | ID |
| 744 | The process by which the initial volume of waste is reduced by application of force is called__________. a-hanical volume reduction b- mechanical size reduction c- separation d- none of above | a | SEE |
| 745 | The device for smoothing out the power impulses from the engine is called the______. a- Flywheel b- Camshaft c-Crankshaft d- Clutch | a | FMP |
| 746 | The gated regulator, which is constructed in the parent canal near the side of an offtaking canal, is called _________________. a- canal head regulator b-distribuary head regulator c- cross regulator d- none of the above | c | ID |
| 747 | Co-efficient of thermal capacity of a material to that of water is called: a- Specific heat b- latent heat c- ambient temperature d- sensible heat | a | SEE |
| 748 | Which of the following engine ha highest efficiency_____________. a-Diesel engine b- Petrol engine c- Steam engine d- Gas engine | b | FMP |
| 749 | Alkali soils are reclaimed by _______________. a- leaching only b- addition of gypsum and leaching c- addition of gypsum only d- provision of drainage | b | ID |
| 750 | The hydrological cycle is mainly a__________. a- Chemical phenomenon b-Biological phenomenon c- Physical phenomenon d- None of above | c | SEE |
| 751 | An implement which is attached to the tractor drawn bar by a pin joint is called______. a-Rigid type implement b-Mounted type implement c-Trailed type implement d-Hinged type implement | c | FMP |
| 752 | Plot of u verses W(u)on standard log paper is called_________-. a- discharge curve b- drawdown curve c- type curve d- groundwater curve | c | ID |
| 753 | The normal human body temperature is__________. a- 37°C b- 38°C c- 36°C d- 98°C | a | SEE |
| 754 | BHP divided by IHP is______________. a- Thermal efficiency b- Mechanical efficiency c- Volumetric efficiency d- None of the Above | b | FMP |
| 755 | When impellers are connected in series the discharge_________________ a- add up b- remains same c- head remains same d- head adds up | b | ID |
| 756 | In the last 100 years, how much world’s glaciers outside the polar regions have melted__________. a- 40% b- 50% c- 60% d- 30% | b | SEE |
| 757 | The diameter of engine cylinder is called_________. a-Bore b- Sleeve c- Stroke d- Swept | a | FMP |
| 758 | Leveling along a watercourse is_________________. a- Topographic leveling b- Profile leveling c- Reciprocal leveling d- None of above | b | ID |
| 759 | __________.is a machine use to palletize sugar press mud and slurry of bio gas. A- Palletizer B- Digester C- Incinerator D-Gasifier | a | SEE |
| 760 | An implement which is attached to the tractor drawn bar by a pin joint is called______. a-Rigid type implement b-Mounted type implement c-Trailed type implement d-Hinged type implement | c | FMP |
| 761 | The Froude number of a subcritical stream at the end of a hydraulic jump in a horizontal rectangular channel is 0.22. The sequent-depth ratio of this jump is ___________. a- 11.25 b- 15.25 c- 8.35 d- 6.5 | b | ID |
| 762 | The most essential component of concrete is__________. a- Cement b- sand c- water d- mortar | c | SEE |
| 763 | IHP minus FHP equals______________. a- BHP b- SAF HP c-m.e.p d- None of the Above | a | FMP |
| 764 | The liquid used in a differential manometer to measure high pressure difference should have________________. a- low density b- high density c- low surface tension d- high surface tension | b | ID |
| 765 | Breeding of flies complete in__________. a-7-10 days b-9-11 days c-12-15 days d-3-4 days | b | SEE |
| 766 | The linear distance, travelled by the piston from T.D.C. to B.D.C, is called_________. a-Bore b- Sleeve c- Stroke d- Swept | c | FMP |
| 767 | The ratio of the water stored in the root zone of a crop, to the water actually delivered to the crop in the field, is known as_______________. a- Water conveyance efficiency b- Water application efficiency c- Water use efficiency d- None of the above | b | ID |
| 768 | Fourth rank in Hierarchy of Integrated Solid Waste Management is __________. a-Source Reduction b- Recycling c- Waste Transformation d-Land filling | d | SEE |
| 769 | Two-way m.b. ploughs are suitable for______________. a-Terraced lands of hilly tracts b-Flat areas c-Loamy lands d-Clay soils, only | a | FMP |
| 770 | The freeboard in lines section in measured between____________________. a- FSL and top of lining b- FSL and top of canal bank c- top of lining and top of canal bank d- none of them | a | ID |
| 771 | The temperature of surrounding medium is called__________. a- Heat b- latent heat c- ambient temperature d- sensible heat | c | SEE |
| 772 | The average pressure during the power stroke minus the average pressure during the intake, compression and exhaust strokes is called____________. a- IHP b-Compression ratio c- BHP d-m.e.p | d | FMP |
| 773 | Khosla’s safe gradient for the design of weirs will be the lowest for the soils of type__________. a- fine sands b- course sand c- shingle and gravels d- none of them | a | ID |
| 774 | Roots take nutrients and water from_____________. a- Atmosphere b- Biosphere c-Rizosphere d- None of these | c | SEE |
| 775 | The property of fuel, which prevents pre-ignition in the cylinder, is called___________. a-Anti-knocking b- Detonation c- Knocking d- Sleeving | a | FMP |
| 776 | A cross regulator helps in_________________. a- increasing supply in the parent channel downstream b- increasing supply in the offtaking channel c- increasing water depth I the parent canal, upstream d- both (a- and (c- | d | ID |
| 777 | The diagonal scale is use to read__________. a- 1 unit b- 2 unit c- 3 consecutive unit d- 4 unit | c | SEE |
| 778 | In walking type m.b. plough the share is fastened to the frog by_____________. a-One plough bolt b-2 Plough bolts c-Round head nut d-None of the above | a | FMP |
| 779 | The land is said to be waterlogged, if the soil pores within_____________–. a- a depth of 40cm is saturated b- a depth of 60cm is saturated c- root zone of crop is saturated d- soil upto groundwater table is saturated | c | ID |
| 780 | Third rank in Hierarchy of Integrated Solid Waste Management is __________. a- Source Reduction b- Recycling c-Waste Transformation d-Land filling | c | SEE |
| 781 | The power used in overcoming friction in the engine is called_______________. a- BHP b- IHP c- FHP d- None of the Above | c | FMP |
| 782 | If the porosity of a soil is 30% and specific yield is 10%, what would be the value of specific retention of the soil? a- 20% b- 40% c- 3% d- None of these | a | ID |
| 783 | Co-ordinates are of __________types. a-5 b-4 c-3 d-2 | b | SEE |
| 784 | Ignition of fuel-air mixture in the intake manifold of the engine is called_______. a-Back fire b- Pre ignition c- Ignition d- Knocking | a | FMP |
| 785 | When impellers are connected in series the head___________________. a- add up b- remains same c- discharge remains same d- discharge adds up | a | ID |
| 786 | Chemical transformation of solid waste involves__________. a- Combustion b- Pyrolysis c- Gasification d- All of above | d | SEE |
| 787 | The metal used for construction of slip nose share is_________. a-Cast iron b-Soft center steel c-High carbon steel d-Mild steel | a | FMP |
| 788 | Precision land leveling helps in _____________________. a- Water saving b- Increase in crop yield c- Reduce in water logging d- All of above | d | ID |
| 789 | The most commonly used chemical disinfectant in universe__________. a- iodine b- phenol c- chlorine d- none of these | c | SEE |
| 790 | The air volume in the cylinder with the piston at B.D.C divided by the clearance volume is called_______________. a- Compression ratio b- Piston displacement c- Cylinder ratio d- None of the Above | a | FMP |
| 791 | The initial depth of a hydraulic jump in a rectangular channel is 0.2 m and the sequent-depth ratio is 10. The length of the jump is about________________. a- 4 m b- 6 m c- 12 m d- 20 m | c | ID |
| 792 | The most durable material is__________. a- Concrete b- wood c- bricks d- terra cotta | b | SEE |
| 793 | A rod/bar which connects the piston and crankshaft of an engine, of an engine, is the_______. a-Cam shaft b- Connecting rod c- Piston d- Sleeve | b | FMP |
| 794 | Force on a vertically immersed surface is given by_________________. a- γ A b-γhc c-γhcA d- none of above | c | ID |
| 795 | Pyrolysis Process is highly__________. a- Exothermic b- Endothermic c- None d- a & b | b | SEE |
| 796 | The metal used for construction of shin share is______________. a-High carbon steel b-Soft center steel c-Mild steel d-Cast iron | a | FMP |
| 797 | Frequency of irrigation is dependent upon the type of____________-. a- soil and crop b- soil and climate c- soil, crop and climate d- soil, crop, climate and fertilizer | c | ID |
| 798 | Depth of packing filter ranges from__________. a-2 to 4 ft b-3 to 8 ft c-4 to 6 ft d-6 to 8 ft | b | SEE |
| 799 | The ratio between the power output of an engine and the energy in the fuel burned to produce that power is called______________. a- Volumetric efficiency b- Thermal efficiency c- Mechanical efficiency d- Compression ratio | b | FMP |
| 800 | The main advantage offered by bentonite layer lining in an irrigation canal is that_____. a- seepage loss is reduced b- cross sectional area is reduced c- cost of land acquired is reduced d- earth work of excavation is reduced | a | ID |
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