Steam Boilers, Engines, Nozzles and Turbines Which type of boiler can meet rapid changes of load? Forced circulation type Vertical fire tube type Horizontal water tube type Horizontal fire tube type Forced circulation type Vertical fire tube type Horizontal water tube type Horizontal fire tube type ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The turbine blades are Curved None of these Straight Circular Curved None of these Straight Circular ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The stage efficiency (ηS) is given by (where ηB = Blading efficiency, and ηN = Nozzle efficiency) ηS = ηB × ηN ηS = ηB / ηN None of the listed here ηS = ηN / ηB ηS = ηB × ηN ηS = ηB / ηN None of the listed here ηS = ηN / ηB ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In order to obtain superheated steam, a superheater is added in an existing boiler. As as result, furnace vacuum will Worsen Improve May improve/worsen depending on size Remain unaffected Worsen Improve May improve/worsen depending on size Remain unaffected ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The isentropic enthalpy drop in moving blade is two-third of the isentropic enthalpy drop in fixed blades of a turbine. The degree of reaction will be 0.56 1.67 0.67 0.4 0.56 1.67 0.67 0.4 ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The heat loss in a boiler takes place in the form of All of these Heat carried away by ash Moisture present in fuel and steam formed by combustion of hydrogen in fuel Heat carried away by flue gases All of these Heat carried away by ash Moisture present in fuel and steam formed by combustion of hydrogen in fuel Heat carried away by flue gases ANSWER DOWNLOAD EXAMIANS APP
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