Free online Sample Paper on Crops For FCI Exams

Free online Sample Paper For FCI Exams
Objective Questions on Food,Fodder and Crops
1. Which is the most important source of food and fodder?
(a) Algae
(b) Lichen
(c) Fungi
(d) Cereal
Ans. (d)

2. Of the elements in the following list, which is needed in the lowest concentration by plants?
(a) Calcium
(b) Magnesium
(c) Phosphorus
(d) Iron
Ans. (d)

3. Which of the following elements is not required for normal growth of the plant?
(a) Pb
(b) Ca
(c) Fe
(d) Mg
Ans. (a)

4. Which of the following elements is needed as a component in cell membranes, nucleic acids and energy transfer?
(a) Sulphur
(b) Phosphorus
(c) Calcium
(d) Potassium
Ans. (b)

5. Fairly good yield of rice can be had over a number of years without adding any nitrogenous manures because
(a) they require very minute quantities of nitrogen
(b) their roots have nitrogen-fixing bacterial associated with
(c) there are nitrogen-fixing algae in the rice fields
(d) rice plant do not require any nitrogen
Ans. (c)

6. The first effect of adding fertiliser o a pond would most likely be to
(a) decrease the amount of phytoplankton
(b) kill most bacteria V
(c) lower the compensation point
(d) increase the amount of phytoplankton
Ans. (d)

7. The largest area under cultivation in India is for which of the following crops?
(a) Rice
(b) Wheat
(c) Sugarcane
(d) Jowar
Ans. (a)

8. When a natural predator living being is applied on the other pathogen organism to control them, this process is called
(a) genetic engineering
(b) biological control
(c) artificial control
(d) confusion technique
Ans. (b)

9. Biological control of agricultural pests, unlike chemical control, is
(a) very expensive
(b) self perpetuating
(c) toxic
(d) polluting
Ans. (b)

10. Which of the following is not an air-borne disease?
(a) Black stem rust of wheat
(b) Coffee rust
(c) Blast of rice
(d) Potato mosaic disease
Ans. (d)

11. An American plant, which had become a troublesome waterweed in India is
(a) Typha latifolia
(b) Trapa bispinosa
(c) Cyprus rotundus
d) Eichhornia crassipes
Ans. (d)

12. The major drawback of DDT as a pesticide is that
(a) it is significantly less effective than other pesticides
(b) its cost of production is high
(c) it is not readily and rapidly degraded in nature
(d) organisms at once develop resistance to it
Ans. (c)

13. Autotrophs and heterotrophs differ in
(a) how they obtain their carbon
(b) whether they are prokaryotic or eukaryotic
(c) how they reproduce, sexually or asexually
(d) whether they use chemicals or light as a source of energy
Ans. (a)

14. Removal of topsoil by wind and water is called
(a) soil conseration
(b) soil binding
(c) soil erosion
(d) mulching
Ans. (c)

15. Which of the following is an example of a weed of kharif season that infest maize crop?
(a) Amaranthus (chauli)
(b) Nut grass (motha)
(c) Sorghum (jangali jowar)
(d) All of the above
Ans. (d)

16. Green manuring enhances crop yield by
(a) 5—10%
(b) 15—25%
(c) 30—50%
(d) 60—75%
Ans. (c)

17. Nitrogen content of urea is
(a) 46%
(b) 36%
(c) 26%
(d) 56%
Ans. (a)

18. The science of improving crop varieties is called
(a) hybridisation
(b) selection
(c) introduction
(d) plant breeding
Ans. (d)

19. Growing two or more crops but in definite row pattern is known as
(a) intercropping
(b) crop rotation
(c) mixed farming
(d) mixed cropping
Ans. (a)

20. Green revolution refers to
(a) maintaining soil fertility
(b) use of green plants for covering the earth
(c) development of new crop varieties which helped to overcome hunger
(d) growing green plants to establish balance of nature
Ans. (c)

21. Recognition for bringing green revolution to India goes to
(a) M.S. Swaminathan
(b) Norman Borlaug
(c) B.P. Pal
(d) Gurdev S. Khush
Ans. (a)

22 Horti-pastoral farming refers to
(a) growing food and fodder
(b) growing mixed crops
(c) growing fodder and rearing cattle, etc.
(d) growing fruit trees and fodder simultaneously
Ans. (d)

23. Sharbati Sonora variety of wheat was obtained by
(a) crossing with wild varieties of wheat
(b) hybridisation between wild varieties of wheat
(c) X-ray treatment
(d) irradiation of Sonora 64 with gamma rays
Ans. (d)

24. Which is the oldest breeding method?
(a) Hybridisation
(b) Selection
(c) Mutation
(d) Introduction
Ans. (d)

25. Removal of stamens in an inter-sexual flower before they dehisce is called
(a) protogyny
(b) protandry
(c) inducing male sterility
(d) emasculation
Ans. (d)