agriculture MCQs – Page 22

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 Review each marked answer and report any item that may be outdated or unclear.

agriculture Mcqs

1. soil science 2. agronomy 3. entomology 4. water management 5. horticulture 6. agricultural economics 7. plant pathology 8. food technology 9. animal husbandry 10. plant breeding and genetics

421. Water available in root zone of plants, is about 50% of soil moisture content. which is always available to the plants is called________________?
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A. Capillary water

B. All are correct

C. Soil-moisture content

D. Effective water

422. The pesticide are derived from naturally occuring element with out carbon is called________________?
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A. Natural pesticide

B. Fumigants

C. Inorganic pesticide

D. Organic pesticide

423. The largest insect of the world___________________?
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A. Hairy winged beetle

B. Locust

C. Elephant beetle

D. Grasshopper

424. An insect pest normally present at some time during the growing season that causes the economic damage to a crop is called ?
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A. Migrant pest

B. Secondary pest

C. Key pest

D. Occasional pest

425. The use of all possible control strategies to manage pest population below economic injury level is called________________?
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A. IPM

B. Pest resurgence

C. IPC

D. Pest outbreak

426. The resultant pressure of water acting at ________________________?
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A. H/3

B. None of these

C. 2H/3

D. H/2

427. Which hormone cause moulting in insect_________________?
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A. Ecdysone

B. Activation hormone

C. None of the above

D. Juvenile

428. The pest population at which control measure should be taken to prevent the pest population to build up to reach economic injury level is called_________________?
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A. None of the Above

B. Economic threshold level

C. Economic damage

D. Economic injury level

429. Pesticide group which goes into the system of host and kills pest without harming host is called_________________?
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A. Protect ant

B. Contact

C. Selective

D. Systemic

430. A watershed canal __________________?
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A. Is most suitable in hilly areas

B. Avoids the cross drainage works

C. Is generally aligned parallel to the contour of the area

D. Irrigates only on one side

431. To protect the face of embankment against the attack of wave wash with stone boulders is called _________________?
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A. Pitching

B. All are correct

C. Revetment

D. Armouring

432. The angle between a head regulator and entrance of water, for smooth entry of water in a canal is kept as _________________?
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A. 100

B. 110

C. 90

D. 120

433. Diazepam is an antidote of_________________?
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A. Organophosphate

B. Pyrethorid

C. Carbamte

D. Organ chlorine

434. An explosive increase in population of particular species that occurs over a short period of time is called________________?
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A. IPM

B. Pest resurgence

C. Pest outbreak

D. IPC

435. __________% of total global water is saline and available in oceans ?
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A. 96%

B. 97%

C. 95%

D. 97.5%

436. What colour show moderately hazarous_________________?
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A. Brown

B. Yellow

C. Red

D. Blue

437. Commercial rearing of honey is called________________?
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A. Floriculture

B. Apiculture

C. Sericulture

D. Lac culture

438. The permissible limit of hardness of water fore low pressure boiler is _____________________?
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A. 30 mg/litre

B. 40 mg/litre

C. 50 mg/litre

D. 60 mg/litre

439. The contour of equal water heads and pressure in the soil mass beneath retaining structure are called___________________?
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A. Stream lines

B. Equipotential lines

C. Equilibrium lines

D. Streak lines

440. The pest which causes no significant damage but due to unjudious use of chemical they cause significant loss is called ?
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A. Occasional pest

B. Migrant pest

C. Key pest

D. Secondary pest

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