EEE Topics (Questions Bank)

EEE Topics (Questions Bank)

• Power Factor
• Why CT and PT are used?
• Important short questions about TRANSFORMER.
• Why Transformer rating in KVA?
• What is Auto Trandformer?
• What would happen , if you keep open secondary of a loaded C.T?
• Describe parallel operation of transformer stating the conditions.
• What are the transformer losses?
• Why need Transformer Test (Open Circuit and Short Circuit)
• what is boucholz relay and the significance of it in to the transformer?
• Define:Skin Effect, Corona Effect, Ferranti Effect, Proximity Effect.
• Define:Load Factor, Utilization Factor, Capacity Factor, Demand Factor......
• Define: Current, Voltage, Resistance, Impedance, Reactance.....
• What is Automatic Voltage regulator (AVR)?
• What is the difference between Isolator annd Circuit Breaker?
• What is SF6 Circuit Breaker?
• What is reverse power relay?
• why, when birds sit on transmission lines or current wires doesn?t get shock?
• What is different between grounding and earthings?
• What are the errors in CT?
• What are HRC fuses and where it is used?
• What is the difference between MCB & MCCB, Where it can be used?
• What is Lighting Arrestor? Where should the lighting arrestor be placed in distribution lines?
• How tubelight circuit is connected and how it works?
• what is the difference between synchronous generator & asynchronous generator?
• What is an exciter and how does it work?
• What is Alternator? Explain the working principle of alternator.
• State emf equation of Alternator.
• Condition of Alternator parallel operation.
• What is Substation? Explain its classification.
• What is distribution system? Define: Feeder, distributor ,Service main?.
• What is Sag? State its equation (Equal tower or support)
• what is the working principle of Induction motor?
• Explain the working principle of DC Motor.
• Armature Reaction of DC Motor.
• Define: Torque, Back emf/ Counter emf, Speed control System of DC motor.
• Fleming Right hand rule and Fleming Left Hand rule.
• Faraday's law and Lenz's law
• Induced emf, Mutual Induction.
• What is semiconductor? P-type, N-type, Majority & Minority charge carrier...
• What is PN junction? Explain Forward bias and Reverse bias.
• Draw and Explain Full-wave Rectifier, Half-wave rectifier, Bridge rectifier....
• What is Ripple Factor?
• Draw and Explain operation Push-Pull power amplifier
• Clipping and Clamping circuit.
• Define: SCR, MOSFET, UJT, BJT, CMOS, DAIC, TRAIC.....
• What is Zener diode? Explain its operation.
• What is Digital Electronics? Explain Numbering system and Logic Gates
• Define: Encoder, Decoder, Multiplexer, Demultiplexer, Register......