Page 20 - Fizzy Science Corner

15. The main function of cultivator is— (C) To pulverize the soil
16. Bakhar is generally used in— (B) Bundelkhand
17. Harrow is drawn by— (D) Bullocks and Tractor both
18. Which of the following is not a secondary tillage implement ?(D) Meston plough
19. The term 'Olpad' in 'Olpad Thresher' is named on the name of—(B) Village
20. Which of the following 'hoe' is bullock drawn ? (A) Akola hoe
21. The land levelling implement is—(D) All of the above
22. Patela is used for— (B) Levelling
23. Which of the material is not used for making rollers ? (D) Steel
24. In which condition, roller is used ? (D) None of the above
25. Which one of the following work is not done by scrappers ? (C) For covering the sown-seeds by earth
26. Dibbler is used for—(B) Seed sowing
27. The minimum expenditure is incurred by implements for sowing seeds among the following—
(D) Seed-drill
28. Which of the following tool is used for measuring the draft of agricultural implements? (A)
Dynamometer
29. Which of the following does not affect the draft of ploughs ?(C) Length of furrow
30. Swing-basket (Dhenkuli) is used for— (B) Lifting water from wells
31. Which of the following is used maximum for lifting water from wells ? (A) Persian wheel
32. Which of the following is used for lifting water from 8-10 m depth ? (D) None of the above
33. In which implement. bullocks are not used for lifting water ? (C) Egyptian screw
34. The working efficiency per day of deshi plough is— (B) 0.4 ha
35. Which of the method of ploughing is mostly practised ? (D) Ploughing by halai making
36. The best method of ploughing through deshi plough is— (C) Ploughing by making halai
37. How much is the working efficiency of dibbler (ha per day) ? (A) 0.15
38. Tillage includes— (A) Ploughing of land (B) Keep the land free from weeds (C) Make the soil
levelled (D) All of the above operations (Ans : D)
39. Function of the seed-drill is— (A) Making furrow (B) Dropping seeds (C) Covering the seeds in
furrow (D) All of the above (Ans : D)
40. Wrought iron contains carbon (per cent) — (A) 0.05-1%
41. The mould-board of a tractor drawn soil turning plough is the type of— (D) High speed
42. Among the following, ridger is not used in crop— (B) Gram
43. Belt mostly used is of types— (A) Rubber
44. The major defects of rubber belts are— (B) Slips on wet
45. How many m.m. are in one foot length ? (A) 304.8
46. The grooved pulleys are made-up of— (A) Steel (B) Cast iron (C) Wooden (D) Above (A) and (B)
both (Ans : D)
47. A general farmer used deshi plough for the purpose of— (A) Land ploughing (B) Collecting weeds
(C) Making soil powdery (D) Above all works (Ans : D)