Important Measuring Instruments Multiple Choice Questions and Answers
11. Moving iron meters are extensively used for the measurement of A.C. voltage and current because
A.No current flows through the moving element and is robust
B.Its torque weight ratio is more
C.It is very accurate
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A.No current flows through the moving element and is robust
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12. The accuracy of a meter is determined by ........ deflection
A.One-tenth of full scale
B.One-fourth of full scale
C.Half scale
D.Full scale
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13. ......... meter has the best accuracy
A.Thermocouple
B.Moving-coil
C.Moving-iron
D.Rectifier type
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14. An electrodynamic meter can be used to measure
A.A.C. voltages
B.D.C. voltages
C.Both (a) and (b)
D.None of the above
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15. The reed frequency is essentially
A.A deflection measuring system
B.A vibrational measuring system
C.An oscillatory measuring system
D.A recording measuring system
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