Steam Boilers, Engines, Nozzles and Turbines

A. heat transfer takes place
B. work is done by the expanding steam
C. internal energy of steam changes
D. all of the above
E. none of the above

A. wet
B. superheated
C. remain dry saturated
D. dry
E. none of the above

A. wet
B. superheated
C. remain dry satruated
D. dry
E. none of the above

A. horizontal straight line
B. vertical straight line
C. straight inclined line
D. curved line
E. none of the above

A. pressure only
B. temperature only
C. dryness fraction only
D. specific volume only
E. pressure and dryness fraction

A. 0.1
B. 0.3
C. 0.5
D. 0.8
E. 1.0

A. 0.2
B. 0.8
C. 1.0
D. 0.6
E. 0.5

A. solid and vapour phases are in equi-librium
B. solid and liquid phases are in equilibrium
C. liquid and vapour phases are in equilibrium
D. solid, liquid and vapour phases are in equilibrium
E. none of the above

A. the given boiler with the model
B. the two different boilers of the same make
C. two different makes of boilers operat¬ing under the same operating conditions
D. two boilers of same make but operaing under different conditions
E. any type of boilers operating under any conditions

A. 0°C
B. 100°C
C. saturation temperature at given pressure
D. room temperature
E. 20°C