ExamVeda
Login
Home

The isentropic enthalpy drop in moving blade is two-third of the...

This question belongs to Mechanical Engineering Steam Boilers, Engines, Nozzles And Turbines
Steam Boilers, Engines, Nozzles and Turbines
?

The isentropic enthalpy drop in moving blade is two-third of the isentropic enthalpy drop in fixed blades of a turbine. The degree of reaction will be

Answer & Solution
Correct Answer: Option A
Let's discuss the solution. Join the discussion
Examveda
Question posted by Examveda
Community

Join the Discussion

1 Comment
Madhavan Palmani
Madhavan Palmani 7 years ago
Rd = Hm/(Hf+Hm).

So,
Rd = (2/3)Hf/{(2/3)Hf+Hf}.
= 0.4.

Because, Given that.
Hm = 2/3 Hf.
Keep Learning

Related Questions on Steam Boilers, Engines, Nozzles and Turbines

The expansion of steam in a nozzle follows
A. Carnot cycle B. Rankine cycle C. Joule cycle D. Stirling cycle
In a uniflow engine
A. Steam enters and exhausts through the same port B. Steam enters at one end and exhausts at the centre C. Steam enters at the centre and exhausts at the other end D. None of the above
The mechanical draught _________ with the amount of smoke.
A. Increases B. Decreases C. Does not effect D. None of these
Gradually increasing temperature of flue gases at inlet to chimney for given steam outputs is an indication of
A. Higher effectiveness of boiler B. High calorific value coal being burnt C. Fouling of heat transfer surfaces D. Raising of steam temperature
More Related Questions on Steam Boilers, Engines, Nozzles and Turbines