Category: Steam Boilers, Engines, Nozzles and Turbines

A. in the drum
B. in the fire tubes
C. above steam dome
D. over the combustion chamber
E. at the inlet of chimney

A. the content of sulphur
B. the content of ash and heating value
C. the proximate analysis
D. the exact analysis
E. its type

A. vertical fire tube type
B. horizontal fire tube type
C. horizontal water tube type
D. vertical water tube type
E. forced circulation type

A. provide air around burners for obtaining optimum combustion
B. transport and dry the coal
C. cool the scanners
D. supply air for ignitors
E. convert CO (formed in lower zone of furnace) into C02 at higher zone

A. 0.1 kg/cm2
B. 1 kg/cm2
C. 100 kg/cm2
D. 225.6 kg/cm2
E. it is never possible

A. heat carried away by flue gases
B. heat carried away by ash
C. moisture present in fuel and steam formed by combustion of hydrogen in fuel
D. radiation
E. all of the above

A. anthracite coal
B. bituminous coal
C. lignite
D. peat
E. wood

A. steam evaporation rate per kg of fuel fired
B. work done in evaporating 1 kg of steam per hour from and at 100°C into dry saturated steam
C. the evaporation of 15.65 kg of water per hour from and at 100°C into dry saturated steam
D. work done by 1 kg of steam at saturation condition
E. heat consumed in evaporating 1 kg water at 0°C to steam at 100°C and 1.033 kg/cm pressure

A. drooping characteristic
B. lihear characterisstic
C. rising characteristic
D. flat characteristic
E. none of the above

A. high calorific value
B. produce minimum smoke and gases
C. ease in storing
D. high ignition point
E. ecomomical