A.Compensating windings
B.Increase in length of air gap at pole tips
C.All of the above
D.Interpoles
E.Increasing reluctance of pole tips
Explanation: The correct answer is All of the above.
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Electrical Engineering MCQs: 3,658 practice questions with answer choices and available explanations. Page 21 of 244.
Electrical Engineering MCQs by topic
Basic Electrical MCQs121Power Electronics217Transformers132Transmission and Distribution90D.C. Motors130D.C. Generators120Polyphase Induction Motors99Single Phase Induction Motors110Synchronous Motors122Network Theorems47Economics of Power Generation98A.C. Fundamentals, Circuits and Circuit Theory109Cables57Electrolysis and Storage of Batteries119Electrostatics180Magnetic Circuit28Rectifiers and Converters58Magnetism and Electromagnetism85Electromagnetic Induction85Switchgear and Protection102OP-AMP Circuits24Heating and Welding50Earthing or Grounding11Parallel Circuits25Oscillators28Amplifiers with Negative Feedback18Transistors42Semiconductor Diode44Analog Electronics46Hybrid Parameters12Modulation and Demodulation40Control Systems100Digital Electronics36Electric Traction74Electrical Engineering Materials100Electrical Machine Design103Electronic Instruments30Field Effect Transistors - FET47Industrial Drives70Integrated Circuits15Measurement and Instrumentation109Multi-Stage Transistor Amplifiers40Power Generation121Regulated D.C. Power Supply39SCR (Silicon Controlled Rectifiers)25Semiconductor Theory35Single Stage Transistor Amplifiers38Solid-State Switching Circuits29Transistor Audio Power Amplifiers39Transistor Biasing40Transistor Tuned Amplifiers40Series-Parallel Circuits29Passive Filters20Operational Amplifier30
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Showing page 21 of 244 · 3,658 total solved questions available.
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A.any of the above
B.tonnes
C.span
D.type of drive
Explanation: The correct answer is tonnes.
Submitted by: Academy of Pakistan
A.battery
B.resistor
C.inductor
D.capacitor
Explanation: The correct answer is capacitor.
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A.1.8 A
B.137 mA
C.9.09 A
D.2.2 A
Explanation: The correct answer is 1.8 A.
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A.load torque is heavy
B.high starting torque is required
C.heavy pull out torque is required
D.all of the above
Explanation: The correct answer is high starting torque is required.
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A.reciprocity theorem
B.none of the above
C.superposition theorem
D.compensation theorem
Explanation: The correct answer is reciprocity theorem.
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A.Copper loss
B.Windage loss
C.Bearing friction loss
D.Core loss
Explanation: The correct answer is Copper loss.
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A.A parallel combination of controllable switch and capacitor is used
B.A series combination of controllable switch and a capacitor is used
C.A parallel combination of controllable switch and a diode is used
D.A series combination of controllable switch and a diode is used
Explanation: The correct answer is A parallel combination of controllable switch and a diode is used.
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A.The permanence of air paths is only considered. The reluctance of iron paths is assumed as zero
B.The current in the slot conductors is uniformly distributed over their cross-section
C.All of the above
D.The leakage path is straight across the slot and around the iron at the bottom
Explanation: The correct answer is All of the above.
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A.it has high permeability
B.it has high specific gravity
C.it has low permeability
D.it corrodes easily
Explanation: The correct answer is it has low permeability.
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A.Majority carriers
B.None of the above
C.Minority carriers
D.Junction capacitance
Explanation: The correct answer is Minority carriers.
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A.accelerate the train mass
B.overcome the gravity component of train mass
C.overcome friction, windage and curve resistance
D.do all of the above
Explanation: The correct answer is do all of the above.
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A.induction motor torque in damper winding
B.induction motor torque in field winding
C.all of the above methods
D.reHetance motor torque due to saliency of the rotor
E.eddy current and hysteresis torque in pole faces
Explanation: The correct answer is all of the above methods.
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A.Actual gain of amplifier
B.Actual gain of attenuator
C.Gain in dB of amplifier and attenuator
D.Actual gain of amplifier and attenuator
Explanation: The correct answer is Actual gain of amplifier and attenuator.
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A.product of its inductance and current through it.
B.ratio of the current through it to its inductance.
C.ratio of its inductance to the current through it.
D.product of its inductance and rate of change of current through it.
Explanation: The instantaneous voltage across the inductor is expressed as the product of inductance and a rate of change of current through it as it doesn’t allow any certain change of current through it. Voltage induced in an inductor is written as
Submitted by: Academy of Pakistan