Steam Boilers, Engines, Nozzles and Turbines During polytropic process Work is done All of these Steam may be wet, dry or superheated after expansion Heat transfer takes place across cylinder walls Work is done All of these Steam may be wet, dry or superheated after expansion Heat transfer takes place across cylinder walls ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Degree of reaction is defined as the ratio of Heat drop in moving blades to the heat drop in fixed blades plus heat drop in moving blades Heat drop in moving blades to the heat drop in fixed blades Heat drop in fixed blades plus heat drop in moving blades to the heat drop in moving blades Heat drop in fixed blades to the heat drop in moving blades Heat drop in moving blades to the heat drop in fixed blades plus heat drop in moving blades Heat drop in moving blades to the heat drop in fixed blades Heat drop in fixed blades plus heat drop in moving blades to the heat drop in moving blades Heat drop in fixed blades to the heat drop in moving blades ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Water tube boilers are Externally fired Internally as well as externally fired None of these Internally fired Externally fired Internally as well as externally fired None of these Internally fired ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Which is not the correct statement about moisture in coal? It increases thermal efficiency Inherent moisture and surface moisture are different things In some coals moisture may be present up to 40% Some moisture in coal helps in better burning which is not possible with completely dry coal It increases thermal efficiency Inherent moisture and surface moisture are different things In some coals moisture may be present up to 40% Some moisture in coal helps in better burning which is not possible with completely dry coal ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In case of condensing steam engines, the pressure of steam in the cylinder during exhaust stroke is _________ the atmospheric pressure. None of these Higher than Lower than Equal to None of these Higher than Lower than Equal to ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The coal requirement per kW hour generation in the thermal power plant is of the order of 0.6 to 0.8 kg 0.2 to 0.4 kg 0.1 to 0.2 kg 1.0 to 1.5 kg 0.6 to 0.8 kg 0.2 to 0.4 kg 0.1 to 0.2 kg 1.0 to 1.5 kg ANSWER DOWNLOAD EXAMIANS APP
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