agriculture MCQs – Page 37

Practise multiple-choice questions from agriculture for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

721. The process to dilute the available salts from root Zone by providing simply canal water is known as __________________?
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A. Reclamation

B. Leaching

C. de-salting

D. Recultivation

722. Drought is measuring in terms of________________?
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A. Photosynthesis

B. Yield performance

C. All the above

D. Root length of seeding

723. The delta the total depth of water consumed by crop up to its maturity, the delta of cotton is ____________________?
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A. 40 cm

B. 50 cm

C. 100 cm

D. 80 cm

724. There has been emphasis on the conservation of wild relatives of cultivated plants because wild plants________________?
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A. Carrying many useful genes which are lost in cultivated plants

B. Grow better then cultivated plants

C. Needed to understand the origin of cu;cultivated plants

D. Serve, as valuable fodder plants

725. The management of kind by planting a series of crops, pastures or following to maximize production with sustaining land quality is called_______________?
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A. Crop sequence

B. Crop management

C. Crop rotation

D. Cropping system

726. Net irrigation + field irrigation losses are the requirement of _____________________?
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A. Basin irrigation

B. Furrow irrigation

C. Full irrigation

D. Field irrigation
727. The delta the total water depth required by a crop up to its maturity the delta of wheat is _____________________?
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A. 50cm

B. 30cm

C. 60cm

D. 40 cm

728. The water force per meter length on a vertical wall is equal to_________________?
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A. w H

B. WH2 2

C. W.H/2

D. wh2

729. Raising of only one crop in a year, when there is seasonal supply of water is called______________?
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A. Monocropping

B. Intensive cropping

C. Specialized farming

D. Monoculture

730. The water evaporates from paddy surfaces to the atmosphere in the form of water vapours, these water vapours get collected in the atmosphere and behave & like_________________?
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A. Snow

B. Water

C. Gas

D. Ice particles

731. When seepage water after passing the ground water aquifer joins the surface stream, such stream will be called_____________________?
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A. Influent stream

B. Storm stream

C. Effluent stream

D. Rain stream

732. the phenomenon of evaporation from water surfaces, from soil surfaces around the plants and from plants and transpiration from plants is called ___________________?
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A. All are correct

B. Evaporation

C. Transpiration

D. Evapotranspiration
733. The lower limit of factor of safety against over turning in a gravity is _______________________?
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A. 1.4

B. 1.6

C. 1.3

D. 1.5
734. The precipitation that falls during the growing season of the crop is called__________________?
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A. Useful rain fall

B. all are correct

C. Monsoon rain fall

D. Direct rain fall

735. It is important to keep the saturation gradient line within the body of a embankment of canal, the saturation gradient line in loomy soils lie at___________________?
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A. 1:2 to 1:4

B. 1:3 to 1:5

C. 1:5 to 1:7

D. 1:4 to 1:6
736. A structure made near weirs and barrages to facilitate the migration of fish up stream or down stream is called __________________?
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A. Fish pond

B. Fish escape

C. Fish ladder

D. Fish pool

737. Indus river is one of the longest river of Asia measuring about_____________________?
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A. 2500 Km

B. 3200 Km

C. 2900 Km

D. 3000 Km

738. The discharge through rectangular channel is maximum when Hydraulic mean depth m is equal to ______________?
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A. depth/ 2

B. depth/ 3

C. depth/ 4

D. 2 / 3 depth

739. A mine or tunnel for collecting seepage water in rock or dam is called ____________________?
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A. Water tunnel

B. Seepage Drain

C. Seepage gallery

D. Seepage tunnel

740. Aeration holes are provided to reduce the inside saturation pressure ____________________?
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A. In a suppressed weir

B. In all weir

C. In a cippoletti weir

D. In a weir with end contractions