Steam Boilers, Engines, Nozzles and Turbines Green coal, in order to be burnt, must be Burnt as powder Burnt in excess air Heated sufficiently Heated to its ignition point Burnt as powder Burnt in excess air Heated sufficiently Heated to its ignition point ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Which of the following statement is correct for steam turbines as compared to reciprocating steam engines? A steam turbine develops higher speeds All of these The steam consumption is less The efficiency of steam turbine is higher A steam turbine develops higher speeds All of these The steam consumption is less The efficiency of steam turbine is higher ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Heating value of fuel used is as on fired basis. If it is reported for dry or moisture free fuel, then latter should be multiplied by the following factor to correct for as fired value (1 + moisture content) 1 – moisture content 1 + moisture content (1- moisture content) (1 + moisture content) 1 – moisture content 1 + moisture content (1- moisture content) ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines It is required to produce large amount of steam at low pressure. Which boiler should be used? Lancashire boiler Pulverized fuel fired boiler Cochran boiler Babcock and Wilcox boiler Lancashire boiler Pulverized fuel fired boiler Cochran boiler Babcock and Wilcox boiler ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Lancashire boiler is used where working pressure and power required are None of these Moderate High Low None of these Moderate High Low ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines For water, at pressures below atmospheric; Melting point drops slightly and boiling point drops markedly Melting point rises slightly and boiling point drops markedly Melting point drops slightly and boiling point drops slightly Melting point rises markedly and boiling point drops markedly Melting point drops slightly and boiling point drops markedly Melting point rises slightly and boiling point drops markedly Melting point drops slightly and boiling point drops slightly Melting point rises markedly and boiling point drops markedly ANSWER DOWNLOAD EXAMIANS APP
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