Steam Nozzles and Turbines - Data Intensity 4 Multiple Questions and Answers.




26.The friction present between the steam and the nozzle surfaces reduces the heat drop by
A. 10 to 15 percent
B. 15 to 25 percent
C. 25 to 40 percent
D. 40 to 60 percent

27.An impulse turbine as compared to a reaction turbine, for a given power has ___row of blades.
A. equal
B. less
C. more
D. none of above

28.Degree of reaction is defined as the ratio of
A. heat drop in fixed blades to the heat drop in moving blades
B. heat drop in moving blades to the heat drop in fixed blades
C. heat drop in moving blades to the heat drop in fixed blades plus heat drop in moving blades
D. heat drop in fixed blades plus heat drop in moving blades to the heat drop in moving blades

29.The expansion of steam in a nozzle follows
A. Carnot cycle
B. Rankine cycle
C. Joule cycle
D. Stirling cycle

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