DGVCL Exam Paper (12-06-2016) The overall efficiency of Thermal Power Plant is equal to _____ Carnot cycle efficiency Regenerative Cycle Efficiency None of these Renkine Cycle Efficiency Carnot cycle efficiency Regenerative Cycle Efficiency None of these Renkine Cycle Efficiency ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Product of boiler efficiency, turbine efficiency and generator efficiency.
DGVCL Exam Paper (12-06-2016) Which of the following does not change in a transformer? Voltage Frequency All of these Current Voltage Frequency All of these Current ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In transformer voltage and current can be raised or lowered.Frequency remains samePower and Flux remains almost constant.
DGVCL Exam Paper (12-06-2016) A 100-watt light bulb turned on for 8 hours uses : 0.8 kWh 800 Wh None of these 8 kWh 0.8 kWh 800 Wh None of these 8 kWh ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In Solution 0.8 kWh and 800 Wh both options are given as answer as both are correct
DGVCL Exam Paper (12-06-2016) If 3000 kW power is to be transmitted over a distance of 30 km, the desirable transmission voltage will be 33 kV 132 kV 11 kV 66 kV 33 kV 132 kV 11 kV 66 kV ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) What will happen if the primary of a transformer is connected to DC supply? Transformer may start to smoke and burn No effect Transformer will operate with low efficiency Transformer will operate with high efficiency Transformer may start to smoke and burn No effect Transformer will operate with low efficiency Transformer will operate with high efficiency ANSWER EXPLANATION DOWNLOAD EXAMIANS APP transformer works on principle of faraday's law of electromagnetic induction. So if D.C supply use, no indction are produced and due to this E.M.F not induced in winding and transfer of electrical energy is not possible.
DGVCL Exam Paper (12-06-2016) Capacitance is the ability of a body to store an _____ voltage All of these electrical charge electric current voltage All of these electrical charge electric current ANSWER DOWNLOAD EXAMIANS APP
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