Steam Boilers, Engines, Nozzles and Turbines Natural water circulation, by convection in water tube boilers, with increase in pressure of boiler Increases First increases and then decreases Decreases Remain unaffected Increases First increases and then decreases Decreases Remain unaffected ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines 100% efficiency of a thermal cycle cannot be achieved because of It is not possible to achieve 0°K temperature Frictional losses Leakage Non availability of ideal substance It is not possible to achieve 0°K temperature Frictional losses Leakage Non availability of ideal substance ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The efficiency of a boiler is defined as None of these Ratio of heat actually used in producing steam to the heat liberated in the furnace Ratio of the mass of steam produced to the mass of total water supplied in a given time Ratio of the heat liberated in the furnace to the heat actually used in producing steam None of these Ratio of heat actually used in producing steam to the heat liberated in the furnace Ratio of the mass of steam produced to the mass of total water supplied in a given time Ratio of the heat liberated in the furnace to the heat actually used in producing steam ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Which of the following is correct? (Where pa = Actual mean effective pressure, pm = Theoretical mean effective pressure, and K = Diagram factor) pa = pm/K pa = K/pm pa = pm × K pa = pm + K pa = pm/K pa = K/pm pa = pm × K pa = pm + K ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Water tube boilers are Externally fired Internally fired Internally as well as externally fired None of these Externally fired Internally fired Internally as well as externally fired None of these ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The nozzle efficiency is the ratio of Workdone on the blades to the energy supplied to the blades Energy supplied to the blades per kg of steam to the total energy supplied per stage per kg of steam Workdone on the blades per kg of steam to the total energy supplied per stage per kg of steam None of these Workdone on the blades to the energy supplied to the blades Energy supplied to the blades per kg of steam to the total energy supplied per stage per kg of steam Workdone on the blades per kg of steam to the total energy supplied per stage per kg of steam None of these ANSWER DOWNLOAD EXAMIANS APP
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