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Multiple Choice Questions in Power Systems - 1

Important multiple choice questions in Power systems 1.        In pump storage hydropower plant, the electrical machine is made to work alternately as generator and motor. The efficiency of the generator working at the same electrical power level is A)      Greater than that as motor B)       Equal to that as motor C)       Less than that as motor D)      Greater or less than that as motor depending on the type of machine 2.        In a thermal nuclear reactor                                 I.             The purpose of moderator is to slowdown fast neutrons produced due to fusion.     ...

Multiple Choice Questions in Measurements- 1

Multiple Choice Questions in Measurements 1.        When reading is taken at half scale in the instrument, the error  is a)       Exactly equal to half of full-scale error b)       Equal to full-scale error c)        Less than full-scale error d)       More than full-scale error 2.        Torque/weight ratio of an instrument indicates a)       Selectivity b)       Accuracy c)        Fidelity d)       Sensitivity 3.        The errors introduced by the instrument fall in which category? a)       Systematic errors b)       Random errors c)        Gross errors d)   ...