Q. Frequency of oscillation in an electronic energy meter depends on __________

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Q. Analog signal is converted _________

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Q. An electronic energy meter is advantageous compared to conventional ones.

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Q. Energy meter can be directly used in measurement.

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Q. Creeping in an energy meter can be found using _________

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Q. Preliminary light load adjustment involves _________

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Q. Creep adjustment involves _________

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Q. Light load adjustment involves _________

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Q. Low power factor adjustment involves _________

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Q. Full load u.p.f adjustment involves _________

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Q. Phase sequence indicator gives the maximum value of phase voltages.

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Q. Synchronization of A.C. supply means __________

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Q. How many types of phase sequence indicators are there?

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Q. A rotating phase sequence indicator consists of ________

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Q. The three coils are ________

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Q. Excitation of the three coils produces ________

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Q. Eddy e.m.f produces a torque.

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Q. Disc rotation is determined by ________

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Q. In the Two wattmeter method of measuring power in a balanced three-phase circuit, one wattmeter shows zero and the other positive maximum. The load power factor is?

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Q. Two watt meters, which are connected to measure the total power on a three-phase system supplying a balanced load, read 10.5 kW and – 2.5 kW respectively. What is the total power?

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