GATE 2017-2018 :: GATE Agricultural
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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
- 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
- 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
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Choose the most appropriate alternative from the options given below to complete the following sentence: I ___ to have bought a diamond ring.
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Choose the most appropriate alternative from the options given below to complete the following sentence:Food prices ___ again this month.
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Choose the most appropriate alternative from the options given below to complete the following sentence: The administrators went on to implement yet another unreasonable measure, arguing that the measures were already ___ and one more would hardly make a difference.
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Choose the most appropriate alternative from the options given below to complete the following sentence: To those of us who had always thought him timid, his ___ came as a surprise.
- The arithmetic mean of five different natural numbers is 12. The largest possible value among the numbers is
- Two policemen, A and B, fire once each at the same time at an escaping convict. The probability that A hits the convict is three times the probability that B hits the convict. If the probability of the convict not getting injured is 0.5, the probability that B hits the convict is
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The total runs scored by four cricketers P, Q, R, and S in years 2009 and 2010 are given in the following table:
The player with the lowest percentage increase in total runs is
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