Steam Boilers, Engines, Nozzles and Turbines The friction present between the steam and the nozzle surfaces reduces the heat drop by 15 to 25% 25 to 40% 40 to 60% 10 to 15% 15 to 25% 25 to 40% 40 to 60% 10 to 15% ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Which of the following are boiler accessories? None of these Economizer Both (A) and (B) Superheater None of these Economizer Both (A) and (B) Superheater ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A boiler in India should conform to safety regulations of IBR DIN ASTM BS IBR DIN ASTM BS ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Which of the following gases has the highest calorific value? Blast furnace gas Water gas Coal gas Producer gas Blast furnace gas Water gas Coal gas Producer gas ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The critical pressure ratio is given by (where p₁ = Initial pressure of steam, and p₂ = Pressure of steam at throat or critical pressure) p₁/p₂ p₂/p₁ p₁. p₂ p₁ + p₂ p₁/p₂ p₂/p₁ p₁. p₂ p₁ + p₂ ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Sulphur content of fuels is very important to the plant operators because it Retards electric precipitation Has highly corrosive effect Has high heating value Promotes complete combustion Retards electric precipitation Has highly corrosive effect Has high heating value Promotes complete combustion ANSWER DOWNLOAD EXAMIANS APP
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