Unit 3: Tillage and its implements - Practice Quiz

1 What is the main objective of primary tillage?

2 Which primary tillage objective helps control weeds?

3 Primary tillage is generally performed before which operation?

4 Which is an advantage of primary tillage?

5 Which can be a disadvantage of excessive primary tillage?

6 Which implement is commonly used for primary tillage?

7 Which implement is also known as a disc plough?

8 The country plough is mainly used for which purpose?

9 Which part of a mouldboard plough turns the furrow slice?

10 What is the main purpose of secondary tillage?

11 Which operation is commonly performed during secondary tillage?

12 Which implement is commonly used for secondary tillage?

13 Which is an advantage of secondary tillage?

14 Excessive secondary tillage may cause which problem?

15 Which implement is used to level the soil after ploughing?

16 Which implement is especially suitable for ploughing small fields on hills?

17 Why are lightweight implements preferred in hill agriculture?

18 Which implement is commonly used for manual soil cultivation in hill areas?

19 What is the main purpose of intercultural operations?

20 Which implement is commonly used for intercultural weeding between rows?

21 A farmer wants to incorporate a heavy green-manure crop deeply into the soil before sowing wheat. Which primary tillage objective is most relevant?

22 A clay field is ploughed while it is excessively wet. Which problem is most likely to result?

23 Repeated deep ploughing at the same depth has produced a dense layer immediately below the tilled zone. What is the most appropriate corrective action?

24 Which situation best justifies reducing the intensity of primary tillage?

25 A field has hard, dry soil and contains roots and surface trash that would frequently clog a conventional mouldboard plough. Which implement is most suitable?

26 A farmer requires strong soil inversion and nearly complete burial of surface weeds. Which primary tillage implement should be selected?

27 Which implement is most appropriate for loosening soil deeply while leaving most crop residue on the surface?

28 A reversible mouldboard plough is especially useful on a field where the operator wants to avoid forming alternating back furrows and dead furrows. Why?

29 After primary ploughing, a field contains large clods and an uneven surface. What is the main objective of the next tillage operation?

30 A silty soil is repeatedly cultivated until it becomes extremely fine. Heavy rain then forms a dense surface crust. Which practice contributed most to the problem?

31 Which sequence is most suitable for preparing a cloddy field after primary ploughing?

32 A cultivator has a working width of , operates at , and has a field efficiency of . What is its approximate effective field capacity?

33 A farmer uses one additional harrowing pass even though the required seedbed condition has already been achieved. What is the most likely consequence?

34 While ploughing across a hillside, the furrow slice must consistently be turned toward the uphill side. Which implement is best suited to this requirement?

35 A farmer must prepare narrow bench terraces that have limited turning space and low load-bearing capacity. Which power source and implement combination is most suitable?

36 Why should a lightweight implement used on steep land preferably operate along the contour?

37 A row-crop cultivator is damaging young maize roots during weeding. Which adjustment is most appropriate?

38 Which implement is most suitable for uprooting young weeds in line-sown wetland rice while also stirring the surface soil?

39 A potato grower needs to move loose soil from both sides of each row toward the plant bases. Which implement should be used?

40 For shallow control of weeds spread across the inter-row space of a dryland crop, which cultivator attachment generally gives the best full-width cutting action?

41 A field has a compacted layer just below the normal ploughing depth, adequate surface residue, and limited rainfall before sowing. Which primary-tillage strategy best addresses the main constraint while minimizing unnecessary soil disturbance?

42 When a mouldboard plough is used to incorporate a heavy infestation of annual weeds before a rainfed crop, which combination most directly explains its primary objective?

43 A farmer repeatedly ploughs a clay soil when it is slightly wetter than its friable condition. Which long-term outcome is most likely?

44 Which situation represents a disadvantage of intensive primary tillage that may not be immediately visible during seedbed preparation?

45 A field contains large quantities of standing crop residue and requires partial rather than complete soil inversion. Which implement is generally the most suitable primary tillage choice?

46 A farmer must plough a heavy, sticky soil containing buried stones and wants to reduce damage from sudden obstructions. Which implement-feature combination is most appropriate?

47 Two ploughs operate at the same depth and width, but one requires substantially greater draft because its furrow slice is inverted sharply and the soil is moist. Which design factor most plausibly explains the difference?

48 A reversible plough is selected for a sloping field where repeated dead furrows and back furrows would concentrate runoff. What is its main operational advantage in this case?

49 A primary-ploughed field has adequate moisture but large clods, uneven microrelief, and a narrow sowing window. Which secondary-tillage objective should receive priority?

50 In a dryland field where the seedbed is already fine but surface evaporation is high, which secondary-tillage approach is most defensible?

51 A farmer makes several extra passes with a disc harrow to obtain a very fine seedbed in a loamy soil. Which combined consequence is most likely?

52 A seedbed contains both coarse clods and a large fraction of loose fine soil after repeated harrowing. What problem should the operator anticipate after intense rainfall?

53 A farmer uses a heavy roller after secondary tillage on a soil that is near the plastic limit. Which risk is most significant?

54 On a cultivated hill slope, the primary objective is to reduce downslope runoff while maintaining workable strips for animal-drawn operations. Which implement or arrangement is most appropriate?

55 A small terraced field has narrow turning space, shallow soil, and a high risk of terrace-edge damage. Which implement choice is most suitable?

56 An implement used on a steep cultivated slope repeatedly slips sideways, leaving discontinuous furrows. Which modification most directly improves directional control and erosion management?

57 A row crop has a shallow root system, weeds concentrated between rows, and a crusted surface after irrigation. Which implement setting best balances weed control with crop safety?

58 A farmer wants to control small weeds in a cereal crop without throwing soil onto seedlings. Which implement adjustment is most important when using a blade harrow between rows?

59 An orchard floor has weeds close to tree trunks, but the operator must avoid bark injury and root damage. Which implement is most appropriate?

60 A field trial shows that a rotary hoe controls weeds effectively only when the soil surface is dry and weeds are at the cotyledon stage. Which conclusion is most accurate?