question_answer

Consider the following statements:

1. Actual mass flow rate of steam will be less than the theoretical value in all cases of flow through a nozzle

2. Mass flow of steam cannot be increased beyond a certain value in the case of flow through a nozzle.

3. Actual velocity of steam at the exit of a nozzle will always be less than the theoretical value.

Of these statements:

A) 1, 2 and 3 are correct

B) 1 and 2 are correct

C) 2 and 3 are correct

D) 1 and 4 are correct