31. The compression ratio of diesel engines are in the order of
32. A soil is saline if
33. A perfect gas at 27°C is heated at constant pressure till its volume is doubled. The final temperature in °C of the gas is
34. Kg of steam/kg of water vapour removed in an evaporator is called
35. If S is slip and Va is the actual travel speed and Vt is theoritical wheel speed when
36. The calorific value of HSD is
37. Objective of conservation tillage is to conserve
38. Size of seed drill is expressed by
39. . . . . . . . . % depletion of available moisture is optimum for ploughing.
40. In freeze drying the liquid phase occurs at the pressure above
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