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DC Circuit in AC MCB
Does using a AC MCB in a DC circuit affect the tripping time or the perfromance?
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Ceiling Fan Rotation
The ceiling fan rotates in anticlockwise direction, Why?
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Power Factor
The power is -ve for the first 2ms and then it will -ve What will be the P.F. Angel?
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LPF and AC Wattmeter
What is the constructional diffrence between LPF wattmeter and ordinary AC wattmeter?
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Inductive Load
How to design inductive load for 3 phase 440v and maximum 5 amps for star or delta?
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Leakage Currrent
How will you calculate the leakage current?
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Limit Short Circuit Current to Twice the Full Load Current
Full load SLip of a 400vstar connected 50 hz 3ph IM is 3.5 and with locked rotor full load current is circulated if 92v is applied between lines find the necessary tapping on the autotransformer so as to limit short circuit current to twice the full load current.
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Generator Breakdown
What are the major causes of a generator breakdown?
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Test New Electrical Installation
In residential building electrical installation has been completed. How will you test this new electrical installation of building?
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Skin Effect
What do you mean by skin effect?
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Busduct & Rising Main
Explain what are busduct and rising main? Where it is used?
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Transformer Shutdown and Trip
What is the differance between shutdown and trip?
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Power Transformer Design
Calculate Power Transformer Design for 25kva 33kv/400v
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Units Calculation
How many units will a 40W tube consume in 1hr 15 minutes 20 seconds?
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Vector Quantity
Is current a Vector quantity? If yes, then two wires on 90 degree angle must have resulting current equal to zero.
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Neutral Earthing
What is neutral earthing and equipment earthing?What are the advantages of grounding a neutral of a transformer and gernator?
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Magnets in Speaker
Why magnets are used in audio speaker?
Electrical Engineering Interview Questions
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