Correct answer
C. Both A. & B.
Explanation
The correct answer is Both A. & B..
The practical representative values of HETP for a number of commercial operations lies within a range of ________ metre?
A solar cell converts the sunlight directly into ________ energy?
Which of the following is the most detrimental for water used in high pressure boiler?
A steel sphere of radius 0.1 m at 400°K is immersed in an oil at 300°K. If the centre of the sphere reaches 350°K in 20 minutes, how long will it take for a 0.05 m radius steel sphere to reach the same temperature (at the centre) under identical conditions? Assume that the conductive heat transfer co-efficient is infinitely large?
A mercury thermometer cannot be used to measure the temperature below the freezing point of mercury, which is ________ °C?
The speed of a rotary drum vacuum filter may be about ________ rpm?