question_answer

Consider the following statements regarding an impulse turbine:

1. Relative velocity at the inlet and exit of the rotor blades are the same.

2. Absolute velocity at the inlet and exit of the rotor blades are the same.                      .

3. Static pressure within the rotor blade channel is constant.

4. Total pressure within the blade channel is constant.

Of these statements

A) 1 and 4 are correct         

B) 2 and 3 are correct

C) 1 and 3 are correct         

D) 2 and 4 are correct