Correct answer
D. Twice
Explanation
The correct answer is Twice.
________ stability method uses open loop transfer function?
Coke compared to the coal from which it has been made, contains ________?
Thermosetting materials________?
Buna-N is also called________?
The density of a gas ‘X’ is twice that of another gas ‘Y’. If the molecular weight of gas ‘Y’ is ‘M’; then the molecular weight of the gas ‘X’ will be________?
What is the value of maximum COP in case of absorption refrigeration, if refrigeration provided is at temperature, TR (where, T1 and T2 are source & surrounding temperatures respectively.)?