Consider the following statement
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 be less than the theoretical value.
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 3 are correct