The evaporation of 15.653 kg of water per hour from and at 100°C is called :
A. evaporative capacity
B. factor of evaporation
C. equivalent evaporation
D. one boiler h.p.
E. boiler efficiency
Cochran boiler is a :
A. horizontal fire-tube boiler
B. horizontal water-tube boiler
C. vertical water-tube boiler
D. vertical fire tube boiler
E. forced circulating boiler
Orsat meter is used for :
A. gravimetric analysis of the flue gases
B. volumetric analysis of the flue gases
C. mass flow of the flue gases
D. measuring smoke density of flue gases
E. none of the above
An ideal regenerative cycle is :
A. equal to carnot cycle
B. less than carnot cycle
C. more than carnot cycle
D. could be anything
E. none of the above
Lancashire ‘boiler is a :
A. stationary fire tube boiler
B. stationary water tube boiler
C. water tube boiler with natural/forced circulation
D. mobile fire tube boiler
E. none of the above
One kilowatt-hour energy is equivalent to :
A. 1000 J
B. 360 kJ
C. 3600 kJ
D. 3600 kW/sec
E. 1000 kJ
100% efficiency of a thermal cycle cannot be achieved because of :
A. frictional losses
B. it is not possible to achieve 0°K temperature
C. leakage
D. non-availability of ideal substance
E. none of the above
The diameter of fire tube of Cornish boiler compared to its shell is :
A. one half
B. one third
C. one-fifth
D. two-fifth
E. three-fifth
The change in internal energy in steam engines equals to :
A. work done during the rankine cycle
B. work done during compression.
C. work done during adiabatic expansion
D. change in enthalpy
E. none of the above
