Calculate the mean blade velocity of a Parson s reaction turbine, if t – McqOptions

MCQOPTIONS

1.	Calculate the mean blade velocity of a Parson s reaction turbine, if the steam leaves the nozzle with an absolute velocity of 320 m/s. Take the nozzle angle as 20 and the turbine works at maximum efficiency.
A.	156 m/s
B.	189 m/s
C.	256 m/s
D.	301 m/s
Answer» E.

Discussion

No Comment Found

Related MCQs

Which of the following statements regarding a Reaction turbine is FLASE?
Which of the following is the correct definition of Shaft Power ?
Which of the following is the correct definition for Adiabatic Power ?
Which of the following is the correct expression for net efficiency in steam turbines?
Which of the following is the correct formula for overall turbine efficiency in steam turbines?
Which of the following is the correct expression for internal efficiency in steam turbines?
Which of the following is the correct expression to calculate stage efficiency in steam turbines?
In a steam turbine the turbine blade s tip experiences more erosion than any other part.
A 50% reaction turbine, having symmetrical velocity triangles, runs at 1500 r.p.m. The exit angles of the blades are 20 . The speed ratio is 0.8 and the diameter of the rotor blades is 1 meter. Determine the power developed if the mass flow rate of steam is 0.785 kg per second.
In a reaction turbine, the fixed blades and moving blades are of the same shape but reversed in direction. The angle of the discharging tip is 20 . The mean blade velocity is 200 m/s. The axial velocity of flow of steam is half of the mean blade velocity. Determine the inlet angles of blades.