Steam Boilers, Engines, Nozzles and Turbines During polytropic process Work is done Heat transfer takes place across cylinder walls All of these Steam may be wet, dry or superheated after expansion Work is done Heat transfer takes place across cylinder walls All of these Steam may be wet, dry or superheated after expansion 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 Steam pressure exceeds the working pressure Both (A) and (B) Water level in the boiler becomes too low None of these Steam pressure exceeds the working pressure Both (A) and (B) Water level in the boiler becomes too low None of these ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The draught produced by a steam jet issuing from a nozzle placed in the ash-pit under the fire grate of the furnace is called Induced steam jet draught Chimney draught None of these Forced steam jet draught Induced steam jet draught Chimney draught None of these Forced steam jet draught ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The length of Lancashire boiler varies from 6 to 7 m 5 to 6 m 9 to 10 m 7.25 to 9 m 6 to 7 m 5 to 6 m 9 to 10 m 7.25 to 9 m ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The balanced draft furnace is one using Induced draft fan and chimney Forced draft fan and chimney Induced draft fan and forced draft fan Any one of the above Induced draft fan and chimney Forced draft fan and chimney Induced draft fan and forced draft fan Any one of the above ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A nozzle is said to be a convergent nozzle When the cross-section of the nozzle increases continuously from entrance to exit When the cross-section of the nozzle first decreases from entrance to throat and then increases from its throat to exit None of these When the cross-section of the nozzle decreases continuously from entrance to exit When the cross-section of the nozzle increases continuously from entrance to exit When the cross-section of the nozzle first decreases from entrance to throat and then increases from its throat to exit None of these When the cross-section of the nozzle decreases continuously from entrance to exit ANSWER DOWNLOAD EXAMIANS APP
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