A wet vapour can be completely specified by__________________?

Related Mcqs:

1. Heating wet steam at constant temperature is heating it at constant_________________?

   A. volume
   B. pressure
   C. entropy
   D. enthalpy
   E. none of the above

2. An odd shaped body weighing 7.5 kg and occupying 0.01 m3 volume will be completely submerged in a fluid having specific gravity of__________________?

   A. 1
   B. 1.2
   C. 0.8
   D. 0.75
   E. 1.25

3. Mercury does not wet glass. This is due to property of liquid known as__________________?

   A. adhesion
   B. cohesion
   C. surface tension
   D. viscosity
   E. compressibility

4. A liquid would wet the solid, if adhesion forces as compared to cohesion forces are________________?

   A. less
   B. more
   C. equal
   D. less at low temperature and more at high temperature
   E. there is no such criterion

5. Size of boiler tubes is specified by___________________?

   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

6. The state of vapour under saturation condition is described by_______________?

   A. pressure alone
   B. temperature alone
   C. pressure and temperature
   D. pressure and dryness fraction
   E. dryness fraction alone

7. Water boils when its vapour pressure ___________________?

   A. equals that of the surroundings
   B. equals 760 mm of mercury
   C. equals to atmospheric pressure
   D. equals the pressure of water in the container
   E. boiling has ^nothing to do with vapour pressure

8. Coke is produced by__________________?

   A. pulverising coal in inert atmosphere
   B. heating wood in a limited supply of air at temperatures below 300GC
   C. strongly heating coal continuously for about 48 hours in the absence of air in a closed vessel
   D. binding the pulverised coal into brick-etts
   E. enriching carbon in the coal

9. Incomplete combustion can be best judged by__________________?

   A. smoky chimney exit
   B. excess air in flue gases
   C. measuring carbon mono-oxide in flue gases
   D. measuring temperature of flue gases at exit of furnace
   E. measuring oxygen in flue gases

10. The height of chimney in a power plant is governed by__________________?

    A. the draft to be created
    B. limitation of construction facilities
    C. control of pollution
    D. quantity of flue gases to be handled
    E. all of the above