Steam Boilers, Engines, Nozzles and Turbines The diameter of internal flue tubes in a Lancashire boiler compared to its shell is Two-fifth One-half Two-fourth One-third Two-fifth One-half Two-fourth One-third ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Which of the following is a fire tube boiler? Yarrow boiler Lancashire boiler None of these Babcock and Wilcox boiler Yarrow boiler Lancashire boiler None of these Babcock and Wilcox boiler ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The power of a boiler may be defined as The ratio of heat actually used in producing the steam to the heat liberated in the furnace The amount of water evaporated from and at 100° C into dry and saturated steam The evaporation of 15.653 kg of water per hour from and at 100° C The amount of water evaporated or steam produced in kg per kg of fuel burnt The ratio of heat actually used in producing the steam to the heat liberated in the furnace The amount of water evaporated from and at 100° C into dry and saturated steam The evaporation of 15.653 kg of water per hour from and at 100° C The amount of water evaporated or steam produced in kg per kg of fuel burnt ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Which type of boiler can meet rapid changes of load? Horizontal fire tube type Vertical fire tube type Forced circulation type Horizontal water tube type Horizontal fire tube type Vertical fire tube type Forced circulation type Horizontal water tube type ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The efficiency of an impulse turbine is maximum when (where Vb = Blade speed, V = Absolute velocity of steam entering the blade, and α = Nozzle angle) Vb = 0.5 V cosα Vb = V cosα Vb = V² cosα Vb = 0.5 V² cosα Vb = 0.5 V cosα Vb = V cosα Vb = V² cosα Vb = 0.5 V² cosα ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Steam in water tube boiler as compared to fire tube boiler Can be raised rapidly Is raised at same rate Is raised at slower rate Could be raised at fast/slow rate depending on design Can be raised rapidly Is raised at same rate Is raised at slower rate Could be raised at fast/slow rate depending on design ANSWER DOWNLOAD EXAMIANS APP
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