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Bharat Heavy Electrical Limited

Management Trainee

Electrical Engineering Questions

• A Hysteresis Motor runs at ____________:-Sync , Sub- Syn & Super Syn Speed
• In Synchronous Impedance method the regulation is__________:Higher than actual
• Octal 56 to Binary_______:-46
• Thyristor which is in forward blocking method will conduct if________:-Positive gate pulse to Cathode
• SC test of T/F will give __________:Copper losses
• 741 IC is an ____________:-Operational Amplifier
• For ideal Op amp _________:-Zin =infinite and Zout = 0
• Memory allocated for LIFO  is ____________:-Stack
• A register which stores the address of the instruction to be executed is________ :- Program Counter
• MHO relay is a _______:-Directional Over current relay
• A directional relay has___________:-type of characteristics
• MC is used for __________:-measuring DC
• A Converter can be operate as inverter if ______________:-Full converter Commutation circuit also
• Coupling  used when the shafts are not inline___________:-Universsal
• first Nuclear Power plant in India is ____________:-Tarapur
• Nuclear and Thermal are used as_________:-Base Load plants
• Which Plant has max No. of auxillaries___________:-Thermal
• In T/L to transfer max power______:----
• An Cascade amplifier has which type of intermediate stages__________:-CE-CB
• Syn M working @ UPF if Exc is increased it operates at___________:-Lead PF
• Current corresponding to max Efficiency in a T/f given Pi and R______________:-Sqr Rt of(Pi/R)
• SCR of an alternator is________:inversely proportional to Xs adjusted in P.U
• Input to Stator of I/M is 40 KW slip is 5% then Torque in Syn Watts when Stator Cu losses & Iron losses are Neg________________:-38 W
• Blocked Rotor Test givs ___________:-Cu losses
• N type impurity is_______________:-Phosphorous
• An Eg of Semi Conductor____________:-Germanium
• Cable insulation resistance is ______________:-inversely proportional to length
• Hand driven tools use_________:-Shaded pole induction motor
• Sinusoidal Pulse width Modulation what can be controlled ________:-freq , Volt & Harmonic
• A nullator is a _____________:-find out
• First law of Thermodynamics __________:-Q=dU+W
• In watches which type of oil is used__________:----
• S^2-5s+20/S^2+5S-20_______________________:-All pass or Band Eliminator 
• In shafts for operating at high temp type of lubricant used is ___________:----