For Parson’s reaction steam turbine, degree of reaction is____________?
For Parson’s reaction steam turbine, degree of reaction is____________?
A. 75%
B. 100%
C. 50%
D. 60%
For Parson’s reaction steam turbine, degree of reaction is____________?
A. 75%
B. 100%
C. 50%
D. 60%
The efficiency of a modern boiler using coal and heat recovery equipment is about_____________?
A. 25 to 30%
B. 40 to 50%
C. 65 to 70%
D. 85 to 90%
Which of the following device is used to measure vacuum?
A. Barometer
B. Hygrometer
C. U-tube manometer
D. Venturi metre
The isentropic expansion of steam through nozzle for the steam initially superheated at inlet is approximated by equation__________?
A. pvls=C
B. pv1126 = C
C. pv1A = C
D. pv = C
Load curve is useful in deciding the__________?
(a) A. operating schedule of generating units
B. sizes of generating units
C. total installed capacity of the plant
D. all of the above
The ratio of exit pressure to inlet pressure of maximum mass flow rate per area of steam through a nozzle when steam is initially superheated is__________?
A. 0.555
B. 0.578
C. 0.5457
D. 0.6
The maximum percentage gain in Regenerative feed heating cycle thermal efficiency____________?
A. increases with number of feed heaters increasing
B. decreases with number of feed heaters increasing
C. remains same unaffected by number of feed heaters
D. none of the above