Agriculture Questions....Patwari Questions --- important MCQ's... Helpfull in Patwari Exams 2015..... Set 1.

1. The science concerned with vegetable culture is called as….
(a) floriculture                                                              (b) olericulture
(c) horticulture                                                             (d) agriculture                          

 Ans. (b)

2. Which of the following elements is almost non essential for plants?
(a) Ca                           (b) Mo                         (c) Zn                           (d) Na

Ans. (d)

3. Although a deficiency of any one of the elements listed may result in chlorosis, only one of these elements is an element found in chlorophyll. Which is it?
(a) Zinc                                    (b) Iron                        (c) Magnesium                        (d) Chloride     

 Ans. (c)

4. Which of the following elements is not present in a nitrogenous base?
(a) Hydrogen               (b) Carbon                   (c) Phosphorus                        (d) Nitrogen      

Ans. (c)

5. A water-fern, which is used as a green manure in rice fields, is
(a) Salvinia                  (b) Mucor                    (c) Aspergillus             (d) Azolla         

Ans. (d)

6. Green manure plants used by farmers mainly belong to the family
(a) Compositae                        (b)Leguminosae           (c) Solanaceae             (d) Poaceae     

 Ans. (b)

7. Major food crops of the world b1ong to
(a) leguminosae           (b) gramineae              (c) solanaceae              (d) cruciferae   

Ans. (b)

8. The principal cereal crop of India is
(a) wheat                      (b) rice                         (c) barley                     (d) sorghum    

 Ans. (b)

9. Which one among the following chemicals is used for causing defoliation of forest trees?
(a) Posphon D             (b) Malic hydrazide     (c) 2, 4-D                     (d) Amo 1618   

Ans. (c)

10. Bioherbicides have been recommended
(a) to prevent ecodegradation                          (b) because of their ready availability
(c) because of their cheap rates                                    (d) because of their abundance                        Ans. (a)

11. The most important weed against which eradication measures would be taken on war footings is
(a) Eichhornia              (b) Dactylis                  (c) Parthenium             (d) Ageratum    

Ans. (c)

12. Water logging of soil makes it physiologically dry because
(a) this condition does not allow the capillary force to work
(b) this condition does not allow oxygen to enter the soil
(c) both (a) and (b)                                          (d) none of these                                   

Ans. (b)

13. Which one of the following is natural insecticide?
(a) Pyrethrum              (b) Nicotine         (c) both (a) and (b)       (d) none of these                    

Ans. (c)

14. The process by which nutrient chemicals or contaminants are dissolved and carried away by water, or are moved into a lower layer of Soil
(a) Mulching                (b) Desertification        (c) Incineration            (d) leaching      

Ans. (d)

15. Which of the following is an example of a weed of Rabi season that infest wheat crop?
(a) Chenopodium         (b) Motha                    (c) Jangalijowar           (d) None of the above    

Ans. (a)

16. First Bioinsecticide developed commercial scale was
(a) Quinine                  (b) DDT                       (c) Organophosphate   (d) Sporeine    

 Ans. (d)

17. Composted manure is produced from
(a) farmyard manure and green manure                       (b) farm refuse and household refuse
(c) organic remains of biogas plants                (d) rotten vegetables and animal refuse         

  Ans. (d)

18. Norin-l0 gene from Japan is a
(a) dwarf gene of wheat                                               (b) dwarf gene of rice
(c) dwarf gene of maize                                               (d) disease resistant gene of rice           

Ans. (a)

19. Aims of plant breeding are to produce
(a) disease-free varieties                                  (b) high-yielding varieties
(c) early-maturing varieties                              (d) all of the above                             

 Ans. (d)

20. Growing of two or more crops simultaneously on the same piece of land is called-
(a) mixed cropping      (b) mixed farming        (c) intercropping          (d) fanning      

 Ans. (a)

21. The Mexican dwarf wheat variety was developed by
(a) M.S.Swaminathan  (b)N.E. Borlaugh         (c) Watson                   (d) Khush         

Ans. (b)

22. The desired varieties of economically useful crops are raised by
(a) Vemalisation          (b) Mutation                (c) Natural selection     (d) Hybridisation

Ans. (d)

23. High-yielding varieties of wheat were primarily developed by Indian scientist by crossing- breeding traditional varieties with
(a) American varieties  (b) Mexican varieties   (c) European varieties  (d) African varieties    

 Ans. (b)

24. A plant breeder: waists to develop a disease resistant variety. What should he do first?
(a) Hybridisation          (b) Mutation                (c) Selection                (d) Production of crop 

 Ans. (c)

25. Dry farming in India is extensively Practised in
(a) Punjab plains     (b) Deccan region   (c) Kanara plains       (d) Coromendal plains                         Ans-B