KNOWLEDGE ADDA: Electrical Engineering Interview Questions

What are V and inverted V curves Answer
What is Cross field revolving theory
What are the advantages of Non salient
What are the different methods of starting of machines
What is Over excitation
How does load gets affect with speed in Synchronous machines
What is Synchronous condenser
Why poly phase induction motors are self starting
What is meant by Crawling in Induction motors
What is the purpose of Auto-Transformer
What is Dark lamp method
What is meant by Skew in Induction motors
What is meant by Cogging in Induction motors
What are universal motors
What is double field revolving Theory
Why single phase Induction motors are not self starting
What is a pony motor
What is under excitation
What is normal excitation
Explain the operation of alternators on infinite bus
What is the effect of change in input power
What is the effect of change in excitation
Can you explain the Parallel operation of Alternators
What is synchronizing Current
What is Synchronizing Torque
What is Synchroscope method
What is Bright lamp method
What are different methods of Synchronising alternators
What does Synchronisation of Alternators mean
How can we determine Xd and Xq
What is slip test
What is two reaction theory
What are the different methods of finding voltage regulation
What is synchronous Impedance method
What is A.S.A method
What is potier method
What is m.m.f method
What is voltage regulation of an Alternator
How does cooling of Synchronous machines takes place
What is brushless excitation system
What is static excitation System
What are the methods of excitation of a Synchronous machines
What is Tooth Ripple
How can we reduce the effect of harmonics
What are Harmonics
What is breath factor
What is pitch factor
What are the conditions to be satisfied for parallel operation of transformers
What is efficiency and condition for maximum efficiency in a transformer
Why do we perform load test or Sumpner’s test on Transformers
Why do we perform Polarity tests on Transformers
What is voltage regulation of a Transformer
How can we express volts, amperes, and ohms etc in Per Unit Values
How does wattmeter connected on H.V side records the Ohmic losses on L.V side also
What are Open and Short circuit tests of a Transformer
What is the Emf equation in a Transformer
What is B-H curve
What are Transformer losses
What are Transformers
How does the transfer of impedance takes place in transformers
What are the properties of a ideal two winding transformer
What is the principle involved in working of a transformer
What do you mean by heating and cooling of transformers
For low power levels and high power levels which type of transformers are preferred
What is the need to reduce leakage flux and how can we do this in both core and shell type Transformers
What is leakage flux
What are the two general type of Transformers based onin which manner windings Are Wound
Why does Transformers are know as to have high efficiency
How does electrical energy transfer takes place in Transformers
Where Transformers are applicable
Name different types of Transformer based on Number of windings
How are Primary and secondary windings of a Transformer connected
What is commutator action
What is a commutator
What are rotary parts of D.C motor
What are Stationary parts of a D.C motor
What is Armature Reaction
Explain Separate excitation
Explain Self excitation
What are different methods of Machines
What are speed torque characteristics
What are Mechanical losses
What are different cooling methods
What is pull in torque
What is pull-out-torque
What is starting torque
mention the applications of Induction motors and generators
Mention the applications of Synchronous generators and motors
What are Synchronous compensators
What are heating and cooling curves of Induction machines
What is Synchronous speed
What is the difference between single phase and Poly phase Induction machines
What is the difference between single phase and Polyphase Synchronous Machines
What are Non Salient pole Synchronous Machines
What are Salient pole Synchronous Machines
What are Squirrel cage Induction machines
What are Slip ring Induction machines
How are Inductions Machines classified
How are Synchronous machines classified
How does the E.M.F generation takes place in Dc machine
Explain the Stator and Rotor windings of Induction Machines
Explain the Armature and Field windings of Synchronous machine
What is Synchronization
What are Synchronous and Induction machines
What are full pitched and short pitched coils
What are Electrical and Mechanical degrees
What is Pole-Pitch
What are the differences between Dc and Ac machines
What is Reluctance or Alignment toque
What is Electromagnetic or Interaction torque
What is the generator and the principle involved in generator
What is a motor and the principle involved in the motor
What is Coupling Field reaction
What is Electromagnetic energy conversion Principles
What factors causes Noise in a Transformer and How can we reduce it
What are Three Phase Transformers give their four Standard connections
What is need of Induction regulators in Transformers
What are Tap changers on Transformers and what is their need
What are Hysteresis and Eddy current losses
What are Stray load and Dielectric losses
Why does sparking occurs in a commutator
What happens if the field coil is opened
What happens if the Armature coil is opened
What are the Advantages of stationary armature
What are the two types of Armature windings
What are Permanent magnet Dc Motors
What is Power Factor
What are Rotating Amplifiers
What is Brake test
What is Regenerative or Hopkinson’s method of testing
What is Swinburne’s or indirect method of testing
What is Direct method of testing
How does testing of D.C machines takes place
How does speed control can be obtained in motors by using SCR’S
What is Armature voltage control method
What is Ward Leonard method
What are series motors
What are shunt motors
What do you mean by Speed Regulation
How does the speed control of motors takes place
What factors influence the speed of a D.C motor
What is external resistance
What are stators
What are the necessary conditions to be obtained for staring of a Motor
What is D.C compound Motor
What are operating characteristics of D.C Motors
What are series Generators
What are Shunt Generators
What are Cumulative compound generators
What is Magnetization curve
What is Motor mode
What is Generating mode
What are different operating characteristics of D.C generators
What are the effects of Brush shifts
What are the different methods employed in limiting Armature reaction
What are the effects of Armature reaction
What is De-Magnetization
What is flux per pole
What is Cross Magnetization
What are Ratings of a Motor
What is Shaft
What is armature windings
What is Armature core
What is Compensating Windings
What is Field windings
What is field poles
What is Yoke
What are Interpoles
What are Brushes
What is rocker

Electrical Engineering Interview Questions

2 comments: