Q. In a counter flow heat exchanger, hot fluid enters at 100°C and leaves at 50°C. Cold fluid enters at 30°C and leaves at 40°C. If heat losses are ignored, then the logarithmic mean temperature difference (LMTD) is °C (round off to 1 decimal place). Ans: 35-38 Sol: Using the equation LMTD =
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In which of the following forms is iron absorbed by plants? Option 1 : Free elementOption 2 : FerricOption 3 : FerrousOption 4 : Both ferric and ferrous
In which of the following forms is iron absorbed by plants? Read More »
After karyogamy followed by meiosis, spores are produced exogenously in Option 1 : AgaricusOption 2 : NeurosporaOption 3 : SaccharomycesOption 4 : Alternaria
After karyogamy followed by meiosis, spores are produced exogenously in Read More »
Which of the following elements in responsible for maintaining turgor in cell? Option 1 : MagnesiumOption 2 : PotassiumOption 3 : SodiumOption 4 : Calcium
Which of the following elements in responsible for maintaining turgor in cell? Read More »
What is the role of NAD+ in cellular respiration? Option 1 : It functions as an electron carrierOption 2 : It functions as an enzymeOption 3 : It is the final electron acceptor for anaerobic respirationOption 4 : It is a nucleotide source for ATP synthesis
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Q. An electrical submersible pump (ESP) delivers well fluid with 100% watercut. In the ESP, the impeller diameter is 0.1 m and speed is 3600 rpm. The total head developed by the ESP is 300 m (water column height). If the stage efficiency of the ESP is 60%, then the minimum number of stages required
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Oxygen is not produced during photosynthesis by Option 1 : CharaOption 2 : Green sulphur bacteriaOption 3 : CycasOption 4 : Nostoc
Which one of the following plants shows a very close relationship with a species of moth, where none of the two can complete its life cycle without the other? Option 1 : ViolaOption 2 : BananaOption 3 : HydrillaOption 4 : Yucca
Q. In an oil reservoir, the residual oil saturation in the volume flooded with polymer solution is 20%. The initial water saturation is 20%. The volumetric sweep efficiency is 50%. The maximum possible recovery factor for the reservoir is _______% (round off to 1 decimal place). Ans: 36-39 Sol:
Double fertilization is Option 1 : Fusion of two male gametes of a pollen tube with two different eggsOption 2 : Fusion of two male gametes with one eggOption 3 : Fusion of one male gamete with two polar nucleiOption 4 : Syngamy and triple fusion
