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Define the term ‘calibration’ and state its need for measuring instruments.

in Electrical Engineering

Define the term ‘calibration’ and state its need for measuring instruments.

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State the types of errors in measuring instruments and reasons of occurrence of errors.

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Define the term ‘Multiplexer’. State two examples of multiplexer.

Define the term ‘Multiplexer’. State two examples of multiplexer.

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What are the three types of electrical measuring instruments?

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Define the term ‘‘cold reserve’’ and ‘‘hot reserve’’.

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Define earthing. State its types.

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Define synchronous reactance. State its formula.

Define synchronous reactance. State its formula.

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State the desirable qualities of measuring instrument and explain any two in brief.

State the desirable qualities of measuring instrument and explain any two in brief.

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State the differences between analog instruments and digital instruments.

State the differences between analog instruments and digital instruments.

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Define the term “Insulation coordination.”

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What is the term polarization of a dielectric and write its relation with susceptibility?

What is the term polarization of a dielectric and write its relation with susceptibility?

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State the necessity of instrument calibration.

State the necessity of instrument calibration.

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Draw the equivalent circuit of a transformer referred to the primary and state the meaning of each term related to the equivalent circuit.

Draw the equivalent circuit of a transformer referred to the primary and state the meaning of each term related to the equivalent circuit.

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Why the state of charge of a nickel-iron cell cannot be determined by measuring the specific gravity of the electrolyte ?

Why the state of charge of a nickel-iron cell cannot be determined by measuring the specific gravity of the electrolyte ?

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State the need for an overvoltage relay in the power system.

State the need for an overvoltage relay in the power system.

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State the need for insulation coordination.

State the need for insulation coordination.

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A uniform illumination of 150 lux is to be obtained on the floor of a room measuring 15m x 15m by arranging electric lights suitably. Calculate the number of lamps and wattage of each lamp if lamp efficiency is 20 lumens/watt. Assume and write suitable values of constants required for this calculation.

A uniform illumination of 150 lux is to be obtained on the floor of a room measuring 15m x 15m by arranging electric lights suitably. Calculate the number of lamps and wattage of each ... lamp efficiency is 20 lumens/watt. Assume and write suitable values of constants required for this calculation.

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Discuss the energy conservation opportunities in induction motor and its need.

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Define “Magneto-striction”? State the causes for loss of magnetism.

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Define electrical power and give its formula.

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What is energy and define its SI unit?

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Define bandwidth and give its expression.

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Define Average value and give its mathematical expression.

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Define isolator and state their types.

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Derive the EMF equation of Alternator. State the meaning of each term used therein.

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What are the methods for measuring power quality in transmission?

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Give some methods available for measuring three-phase power.

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What are the units for measuring electricity?

What are the units for measuring electricity?

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What is an amp for instruments?

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What is the difference between one-port and two-port calibration?

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State the need of UPS.

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Why do we need steady state?

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State the need of current limiting reactors.

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What are active and passive instruments?

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What are the active and passive instruments?

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Difference between megger test equipment and contact resistance meter test instruments?

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Distinguish between: (i) Absolute and secondary instruments (ii) Analog and digital instruments.

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State the necessity of synchroscope and with neat sketch explain its working.

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State the function of strain gauge. Give its types and explain the working of any one type of it.

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Draw the diagram representing transposition of conductor and state its importance.

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Explain the grid system of distribution and state its advantages.

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Describe the proximity effect and state its two disadvantages.

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Explain hunting in synchronous motor. State its causes and effects.

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What is a calibration procedure?

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What is the significance of inverter calibration?

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What is the purpose of load line calibration in VRMs?

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Explain calibration of capacitive type level measurement.

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