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...

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 rotor 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