A. higher value
B. lower value
C. same value
D. any value
E. none of the above
A. more
B. less
C. equal
D. may be more or less depending on capacity of reheater
E. none of the above
A. from a metal wall from one medium to another
B. from heating an intermediateanaterial and then heating the air from this material
C. by direct mixing
D. heat is transferred by bleeding some gas from furnace
E. none of the above
In regenerative air preheater, the heat is transferred _____________________? Read More »
Engines, Nozzles and Turbines, Steam Boilers A. water
B. dry steam
C. wet steam
D. super heated steam
E. supersaturated steam
A. 2 cm
B. 6 Cm ,
C. 8 cm
D. 12 cm
E. 15 cm
The diameter of fire tubes in Cochran boiler is of the order of___________________? Read More »
Engines, Nozzles and Turbines, Steam Boilers A. droog characteristic
B. lihear characterisstic
C. rising characteristic
D. flat characteristic
E. none of the above
With increase in load, radiant super heater has____________________? Read More »
Engines, Nozzles and Turbines, Steam Boilers A. longitudinally
B. circumferentially
C. on dished end
D. anywhere
E. vertically
A. mean diameter and thickness
B. inside diameter and thickness
C. outside diameter and thickness
D. outside diameter and inside diameter
E. outside diameter alone
Size of boiler tubes is specified by___________________? Read More »
Engines, Nozzles and Turbines, Steam Boilers A. prevent flat surfaces under pressure from tearing apart
B. take care of failure in shear
C. take care of failure in compression
D. provide support for boiler
E. provide foundation of boiler
Boiler stays are used to___________________? Read More »
Engines, Nozzles and Turbines, Steam Boilers A. vertical fire tube type
B. horizontal fire tube type
C. horizontal water tube type
D. vertical water tube type
E. forced circulation type
Which type of boiler can meet rapid changes of load____________________? Read More »
Engines, Nozzles and Turbines, Steam Boilers