Which of the following CANNOT be the unit of evaporative capacity ?

1.	Which of the following CANNOT be the unit of evaporative capacity ?
A.	kg of steam/h
B.	kg of steam/h/m<sup>2</sup> of heating surface
C.	kg of steam/kg of air supplied
D.	kg of steam/kg of fuel fired
Answer» D. kg of steam/kg of fuel fired

Discussion

No Comment Found

Related MCQs

Determine the temperature of feed water of a boiler having factor of evaporation equal to 1.14. The enthalpy of 1 kg of steam is 2700 kJ/kg.
The equivalent evaporation of a boiler is 11 kg of steam per kg of fuel fired. The evaporation capacity of the same boiler is 10 kg of steam per kg of fuel fired. Determine enthalpy of 1 kg of steam if the feed water temperature is 40 C.
A boiler generates dry and saturated steam at 10 bar pressure. The evaporative capacity of the boiler is 10 kg of steam per kg of fuel fired. The equivalent evaporation is 11.6 kg of steam per kg of fuel fired. Determine the temperature of feed water.
Steam generated by a boiler is superheated to a temperature of 230 C. The feed water temperature is 30 C. Calculate the factor of evaporation if the pressure of the steam generated is 14 bar. Specific heat of superheated steam is 2.34 kJ/kg-K
A boiler generates steam at 12.5 bar pressure. Temperature of the feed water is 35 C. Determine the factor of evaporation if the dryness fraction of the steam is 0.85.
A boiler produces dry and saturated steam at 12 bar pressure. Calculate the factor of evaporation if the feed water temperature is 45 C.
A boiler generates 600 kg of steam, consuming 40 kg of coal. Determine its evaporation capacity in kg of steam per hour if coal is fed to the furnace at the rate of 4 kg per hour.
What is the latent heat of vaporization of water at 100 C and 1 atm pressure?
A boiler produces 12 kg of steam per kg of coal burnt at a pressure of 11 bar. The steam generated is superheated to a temperature of 260 C. Determine the equivalent evaporation if the mean feed water temperature is 30 C.Take specific heat of superheated steam as 2.33 kJ/kg.
A boiler generates 30 kg of steam at 11.5 bar in 1 hour with the consumption of 3 kg of coal. Feed water temperature is 40 C. Calculate equivalent evaporation if the steam is dry and saturated.

Which of the following CANNOT be the unit of evaporative capacity ?

Discussion

No Comment Found

Related MCQs

Reply to Comment