Correct answer
D. None of these
Explanation
The correct answer is None of these.
Lead is poured into the joints between two ________ pipes?
Dittus-Boelter equation used for the determination of heat transfer co-efficient is valid ________?
The flow of gas along a pipe in the direction of decreasing pressure causes decrease in its________?
The value of Joule-Thomson co-efficient, in case where cooling occurs after the throttling process is________?
Which of the following is an ore dressing operation?
Photoelectric pyrometers are suitable in the temperature range of ________ °C?