Electrical Instruments and measurements

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Q1:- Moving coil permanent magnet instruments can be used on

         1.       Ac and dc

         2.       Ac only

         3.       Dc only

         4.       Half wave rectified ac

ANSWER:-3

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Q2:- The accuracy of MC instruments as compared to MI instrument is

          1.       High

          2.       Low

          3.       Same

          4.       Reasonable accuate

ANSWER:-1

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Q3:- The meter used for measuring power of the circuit is called

        

         1.       kWh meter

         2.       wattmeter

         3.       multimeter

         4.       voltmeter

ANSWER:-2

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Q4:- The cost of ammeter as compared to voltmeter is

         1.       same

         2.       higher

         3.       lower

         4.       very high

ANSWER:-3

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Q5:- A galvanometer can be used for measuring current and voltage of a circuit by

        1.       shunt only

        2.       connecting high value of resistance in series only

        3.       shunt for measuring current and high resistance in series for voltage

        4.       without in series and shunt resistance

ANSWER:-3

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