Electrical Engineering MCQs

Page No. 63

The gravity controlled instrument has crowded scale because current is proportional to________________?


a balancing weight

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b deflection angle

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c sine of deflection angle

✓


d None of the above

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If an instrument has cramped scale for larger values, then it follows________________?


a square law

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blogarithmic law

✓


c uniform law

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d none of the above

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View Answer logarithmic law

A sensitive galvanometer produces large deflection for a_______________?


aA sensitive galvanometer produces large deflection for a_______________?

✓


b large value of current

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clarge value of power

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dnone of the above

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Volt box is a component to_____________?


aextend voltage range

✓


bmeasure voltage

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ccompare voltage in a box

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dnone of the above

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View Answer extend voltage range

Commonly used standard capacitor is______________?


aspherical type

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bconcentric cylindrical type

✓


celectrostatic type

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d multilayer parallel plate type

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Commonly used instruments in power system measurement are_______________?


ainduction

✓


bmoving coil or iron

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crectifier

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delectrostatic

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View Answer induction

In Weston synchronoscope the moving coil is connected across______________?


abus-bars

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b incoming alternator

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cfixed coils

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dany of the above

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View Answer bus-bars

For measurements on high voltage capacitors, the suitable bridge is_______________?


aWein bridge

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b Modified De Santy’s bridge

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cSchering bridge

✓


dNone of the above

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View Answer Schering bridge

In an Anderson bridge, the unknown inductance is measured in terms of_______________?


a known inductance and resistance

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bknown capacitance and resistance

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c known resistance

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dknown inductance

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Two holes in the disc of energy meter are drilled at the opposite sides of the spindle to_____________?


a improve its ventilation

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beliminate creeping at no load

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cincrease its deflecting torque

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d increase its braking torque

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