Steam Boilers, Engines, Nozzles and Turbines The cylinder dimensions of a compound engine may be designed on the basis of Equal initial piston loads on all pistons for obtaining same size of piston rod, connecting rod etc. for all cylinders Equal power developed in each cylinder for uniform turning moment Equal temperature drop in each cylinder for economy of steam All of these Equal initial piston loads on all pistons for obtaining same size of piston rod, connecting rod etc. for all cylinders Equal power developed in each cylinder for uniform turning moment Equal temperature drop in each cylinder for economy of steam All of these 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 p₁. p₂ p₂/p₁ p₁/p₂ p₁ + p₂ p₁. p₂ p₂/p₁ p₁/p₂ ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The high steam and low water safety valve is used to blow off steam when the None of these Steam pressure exceeds the working pressure Water level in the boiler becomes too low Both (A) and (B) None of these Steam pressure exceeds the working pressure Water level in the boiler becomes too low Both (A) and (B) ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Tertiary air is the air used to Transport and dry the coal Cool the scanners Convert CO (formed in lower zone of furnace) into CO₂ at higher zone Provide air around burners for obtaining optimum combustion Transport and dry the coal Cool the scanners Convert CO (formed in lower zone of furnace) into CO₂ at higher zone Provide air around burners for obtaining optimum combustion ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Stage efficiency is also known as None of these Nozzle efficiency Gross efficiency Diagram efficiency None of these Nozzle efficiency Gross efficiency Diagram efficiency ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The critical pressure at which latent heat of vaporisation is zero is 100 kgf/ cm² 273 kgf/ cm² 225.65 kgf/ cm² 1 kgf/ cm² 100 kgf/ cm² 273 kgf/ cm² 225.65 kgf/ cm² 1 kgf/ cm² ANSWER DOWNLOAD EXAMIANS APP
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