agriculture MCQs – Page 23

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 Review each marked answer and report any item that may be outdated or unclear.

441. Which enzyme breaks protein__________________?
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A. Carbohydrates

B. Proteases

C. Amylase

D. Lipases

442. In honey bees a flight for mating purpose is called_________________?
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A. None of above

B. Tactile flight

C. Straight flight

D. Nuptial flight
443. Antecedents prevent pest to cause damage called___________________?
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A. Sterilant

B. Systemic

C. Protectant

D. Contact

444. Locomotion in response to odour is_________________?
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A. Hydrokinesis

B. Klinokinesis

C. Chemokinesis

D. Stereokinesis

445. The parasite which requires only one host for its complete life cycle is called________________?
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A. Zoophagous parasites

B. Entomophagous parasites

C. Phytophagous parasites

D. Monoxenous parasites
446. Toxicant refers to a________________?
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A. Poison

B. Poisonous material

C. None of the Above

D. Both of them

447. Water application efficiency increases if the plot to be irrigated is__________________?
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A. Square

B. All are correct

C. Rectangle

D. Circular

448. Larvae with both thoracic and abdominal legs is_________________?
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A. Vermiform

B. Cruciform

C. Platy form

D. carabifrom

449. An area is officially declared as drought effected if the mean Annual rain fall is less than of the annual Potential evaporation,______________?
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A. 75%

B. 70%

C. 85%

D. 80%

450. Art of making saline un-cultivable lands capable of re-cultivation is called.___________________?
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A. Fertilization

B. Reclamation

C. Water application

D. Growing crops

451. The ratio of specific weight of any liquid to the specific weight of water is called as _________________?
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A. Specific gravity of water

B. Density of liquid

C. Density of water

D. Specific gravity of liquid
452. Some insects which are used as bio control agents for used control is called________________?
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A. Phytophagous parasites

B. Zoophagous parasites

C. None of the Above

D. Entomophagous parasites
453. The slow acting pheromones are_________________?
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A. Semio chemicals

B. Releasers

C. Primers

D. Allelo chemicals

454. Mosquitoes, bed bugs are____________________?
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A. transitary Parasite

B. Intermitttent Parasite

C. Obligate Parasite

D. Permanent Parasite

455. The parasite which can live on more than one host is called__________________?
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A. Facultative Parasite

B. Transitory Parasite

C. Intermitted Parasite

D. Obligated Parasite

456. The rapid reappearance of the pest population in injurious number is called_________________?
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A. Pest resurgence

B. IPC

C. Pest outbreak

D. IPM

457. What are helpful insects___________________?
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A. Silkworm, Pollinators, Predators, Scavenges

B. Predators, Pollinators, Lac insects

C. Predators, Pollinators, Parasites, Honey bees

D. Weed killers, scavengers, predator, pollinator, parasites
458. What colour show extremely hazard to human being_________________?
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A. Yellow

B. Red

C. Brown

D. Blue

459. What is function of deterrent__________________?
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A. None of the above

B. Chemical which prevent feeding

C. Prevent ovipositon of an insect

D. Prevent feeding and oviposition of an insect
460. The discharge over a rectangular notch is determined by _____________________?
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A. 2/3 cd. B (2g) 1/2 H

B. 2/3 cd. B (2g) 1/2 H3/2

C. 2/3 cd. b (2 gh) 1/2

D. 2/3 cd. b (2g) 1/2 H 5/2