Question 41. A diesel engine running in dual fuel mode with diesel as pilot fuel and producer gas as primary fuel produces 3.5 kW at rated engine speed and is coupled directly to a generator for producing electricity. The amount of diesel and producer gas consumed per hour is 460 ml and 12.5 m3, respectively. If generator efficiency is 90%, the maximum electricity produced, in kW is

Question 42. Soybean is to be planted with a precision planter that meters 54 seeds per revolution of the metering disc powered from a ground wheel of diameter 490 mm. The desired plant population is 44800 per ha with a row to row spacing of 0.75 m. The germination percentage is 84. The planter is to be operated at 2.5 km h-1 with a 10% skid of ground wheel.The angular speed of ground wheel in rpm is

Question 43. Soybean is to be planted with a precision planter that meters 54 seeds per revolution of the metering disc powered from a ground wheel of diameter 490 mm. The desired plant population is 44800 per ha with a row to row spacing of 0.75 m. The germination percentage is 84. The planter is to be operated at 2.5 km h-1 with a 10% skid of ground wheel. The angular speed ratio of metering disc to ground wheel for obtaining the desired plant population is

Question 44. Choose the most appropriate alternative from the options given below to complete the following sentence: I ___ to have bought a diamond ring.

Question 45. A 1 hp motor is used for running a dual cylinder reciprocating compressor of a refrigeration system based on R-134a refrigerant having 185 kJ kg-1 cooling capacity. COP of the system is 4.2 and overall efficiency of the compressor is 80%. Specific volume of the refrigerant vapour at suction temperature is 0.15 m3 kg-1. The compressor with bore diameters of 40 mm each runs at 1440 rpm.
The compressor stroke length in mm is

Question 46. A 1 hp motor is used for running a dual cylinder reciprocating compressor of a refrigeration system based on R-134a refrigerant having 185 kJ kg-1 cooling capacity. COP of the system is 4.2 and overall efficiency of the compressor is 80%. Specific volume of the refrigerant vapour at suction temperature is 0.15 m3 kg-1. The compressor with bore diameters of 40 mm each runs at 1440 rpm.
The mass flow rate of the refrigerant in kg min-1 is

Question 47. Choose the most appropriate alternative from the options given below to complete the following sentence:Food prices ___ again this month.

Question 48. If 3 ≤ X ≤ 5 and 8 ≤ Y ≤ 11 then which of the following options is TRUE?

Question 49. All engineering students should learn mechanics, mathematics and how to do computation.                      I                                         II                                     III                                IV Which of the above underlined parts of the sentence is not appropriate?

Question 50. The Headmaster ___________ to speak to you. Which of the following options is incorrect to complete the above sentence?