Important Measuring Instruments Multiple Choice Questions and Answers

21. For measuring the resistance of the elements of an attenuator which of the following is the best choice

   A.Maxwell's bridge

   B.Meggar

   C.Ohmmeter

   D.Wheatstone bridge

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22. E.m.f. of a Weston cell is accurately measured by

   A.Electrostatic voltmeter

   B.Hot wire voltmeter

   C.Isothermal voltmeter

   D.Electrodynamic voltmeter

23. Alternating current is measured by

   A.Induction ammeter

   B.Permanent magnet type ammeter

   C.Electrostatic ammeter

   D.Moving iron repulsion type voltage meter

24. Which of the following measured by using a vector voltmeter

   A.Amplifier gain and phase shift

   B.Filler transfer functions

   C.Complex insersion loss

   D.All of the above

25. For measuring an unknown electrical quantity, select the meter with

   A.Highest range and work down

   B.Lowest range and work down

   C.With middle range and work up and down on trial and error basis

   D.Any of the above

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