agriculture MCQs – Page 45

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 Review each marked answer and report any item that may be outdated or unclear.

881. That rain fall which is effectively consumed by the plants to meet its consumptive needs is called__________________?
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A. Monsoon rainfall

B. Effective rain fall

C. All are correct

D. Total rainfall

882. Hydrology is the science which deals with the depletion and recharge of water resources yearly therefore. its knowledge is a must to _________________ properly the water resources?
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A. Manage

B. Remodel

C. Rehabilitate

D. Develop

883. The area irrigated in the year and it grows crops on which water rates are leveled is called____________________?
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A. Area Assessed

B. Area irrigated

C. Area leased

D. Area cultivated

884. The unproductive branches of cotton are called_________________?
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A. Monopodial branches

B. Vegetative branches

C. Sympodial branches

885. That point in a body at which it will balance if loaded or supported is called ____________________?
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A. Centre of pressure

B. Centre of mass

C. Centre of gravity

D. Mass centre

886. Annual rye grass releases a chemical through its root that prevents________________?
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A. Crop seeds

B. weed seed

C. Both a and b

D. non of these

887. A flow in which the quantity of liquid flowing per second is constant is called___________________?
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A. Turbulent flow

B. Steady flow

C. Uniform flow

D. None of these

888. The wall of masonry or concrete, constructed at 90 to the axis of weir to separate normal weir from under sluices is called____________________?
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A. All are correct

B. Toe wall

C. Retaining wall

D. Divide wall
889. The sheet or small layer of water flowing over an ogee spillway is called _________________?
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A. Thin layer

B. Water spillway

C. Water sheet

D. Nappe
890. In a river the flood water dries up before it joins the sea or any other river, such river is called ________________?
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A. Flashy

B. Deltaic

C. Tidal

D. Virgin
891. Among the cotton exporting countries the number of Pakistan is_______________?
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A. 3rd

B. 4<sup>th</sup>

C. 2<sup>nd</sup>

D. 1<sup>st</sup>

892. On the basis of yield of cotton per hectare which of the following country occupies first position ?
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A. Australia

B. America

C. Pakistan

D. India

893. One hectare is equal to___________________?
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A. 1.9 acre

B. 3.47 acre

C. 1.71 acre

D. 2.471 acre
894. Seed rat of American cotton per acre is__________________?
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A. non of these

B. 6-8 kg

C. 15-18 kg

D. 10-12 kg
895. Pasturing system that allows short periods of heavy use followed by recover, period is called as_______________?
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A. Hay grazing

B. Forage grazing

C. Differed grazing

D. Rotational grazing
896. The actual amount H2O present in the air is called_____________?
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A. Relative humidity

B. Absolute humidity

C. Both A and B

D. non of these

897. In Pakistan the area effected due to water erosion is about_________________?
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A. 22 million ha

B. 12 million to

C. 13.05 million lia

D. 15 million lva

898. Diversity of animals and crop species in different ecosystems is called as_______________?
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A. Mirgation

B. Ecology

C. Biodiversity

D. Ecosystem

899. The productive branches of cotton are called________________?
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A. Fruiting branches

B. Sympodial branches

C. Monopodial branches

D. non of these

900. Geographical area of Pakistan in million hectare is_______________?
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A. 80

B. 60

C. 95

D. none of the above