Power Systems Two identical synchronous machines having same inertia constant are connected in parallel and swinging together. The effective inertia constant is 4 MJ/MVA. Then each machine has inertia constant of 16 MJ/MVA 8 MJ/MVA 4 MJ/MVA 2 MJ/MVA 16 MJ/MVA 8 MJ/MVA 4 MJ/MVA 2 MJ/MVA ANSWER DOWNLOAD EXAMIANS APP
Power Systems The most suitable circuit breaker for short line fault without switching resistor is air blast circuit breaker. SF6 breaker. oil circuit breaker. none of these. air blast circuit breaker. SF6 breaker. oil circuit breaker. none of these. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The power output from an hydroelectric plants depend on discharge, system efficiency. type of dam, head, system efficiency. type of dam, type of catchment area and discharge. type of turbine, type of dam and type of catchment area. discharge, system efficiency. type of dam, head, system efficiency. type of dam, type of catchment area and discharge. type of turbine, type of dam and type of catchment area. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A thermal power plant is being supplied with coal having much more ash content than that for which it was designed. Which of its following units needs major modifications Cooling tower. Pulversing unit. Ash handling unit. Condenser. Cooling tower. Pulversing unit. Ash handling unit. Condenser. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In what from the initial energy will be released for the 200 MeV per fission by a neutron in a slow thermal nuclear reactor electromagnetic radiations. kinetic energy of particles and electromagnetic radiation. heat energy. kinetic energy and sound energy. electromagnetic radiations. kinetic energy of particles and electromagnetic radiation. heat energy. kinetic energy and sound energy. ANSWER DOWNLOAD EXAMIANS APP
Power Systems An alternator having an induced emf of 1.6 pu is connected to an infinite bus of 1 pu. If the bus bar has reactance of 0.6 pu and alternator has reactance of 0.2 pu, what is the maximum power that can be transferred? 5 pu 2.67 pu 6 pu 2 pu 5 pu 2.67 pu 6 pu 2 pu ANSWER DOWNLOAD EXAMIANS APP
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