Steam Nozzles and Turbines - Data Intensity 1 Multiple Questions and Answers.




6.The rate of discharge through the nozzle _____ when the exit pressure is gradually reduced.
A. remains same
B. decreases
C. increases
D. none of above

7.In a nozzle, whole frictional loss is assumed to occur between
A. inlet and thoroat
B. inlet and outlet
C. throat and exit
D. all of these

8.The critical pressure ratio for initially wet steam is
A. 0.546
B. 0.577
C. 0.582
D. 0.601

9.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
A. 0.4
B. 0.56
C. 0.67
D. 1.67

10.The impulse reaction turbine has its driving force
A. as an impulsive force
B. as a reaction force
C. partly as an impulsive force and partly as a reaction force
D. none of the above

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