A.oscillations
B.step input
C.positive sign
D.negative sign
Explanation: The correct answer is positive sign.
Submitted by: Academy of Pakistan
Electrical Engineering MCQs: 3,658 practice questions with answer choices and available explanations. Page 6 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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Electrical Engineering MCQs
Showing page 6 of 244 · 3,658 total solved questions available.
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A.none of the above
B.to provide path for the circulation of cooling air
C.mainly to reduce the eddy currents by providing local short-circuits
D.to neutralise the cross-magnetising effect of the armature reaction
Explanation: The correct answer is to neutralise the cross-magnetising effect of the armature reaction.
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A.stray losses
B.windage losses
C.field copper losses
D.eddy current losses
Explanation: The correct answer is stray losses.
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A.1/4JI
B.1 H/m
C.4n x 10-‘ H/m
D.1
Explanation: The correct answer is 1.
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A.1.2 V
B.2.1 V
C.1.7 V
D.1 V
Explanation: The correct answer is 1.7 V.
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A.Charcoal
B.Graphite
C.Nichrome
D.Silicon Carbide
Explanation: The correct answer is Silicon Carbide.
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A.zero current
B.minimum voltage
C.maximum current
D.maximum voltage
Explanation: The correct answer is zero current.
Submitted by: Academy of Pakistan
A.its boiling point and specific heat are low
B.its atomic weight is quite high
C.its ionization potential is relatively low
D.it remains in liquid state at ordi¬nary temperature
E.all of the above
Explanation: The correct answer is all of the above.
Submitted by: Academy of Pakistan
A.The power factor of the system should be high
B.all of the above
C.The rectifier supply transformer should be utilized to the best ad-vantage
D.In the output circuit there should be no harmonics
E.The voltage regulation of the rec¬tifier should be low
Explanation: The correct answer is all of the above.
Submitted by: Academy of Pakistan
A.is decreased
B.remains the same
C.none of the above
D.in increased
Explanation: The correct answer is in increased.
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A.Not to attenuate the low frequencies
B.To pass d.c. between the stages
C.To dissipate high power
D.None of the above
Explanation: The correct answer is Not to attenuate the low frequencies.
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A.rubber
B.rubber boots and gloves
C.goggles or other face shield
D.all above safety devices
Explanation: The correct answer is all above safety devices.
Submitted by: Academy of Pakistan
A.RIC
B.CIR
C.1/RC
D.RC
Explanation: The correct answer is RC.
Submitted by: Academy of Pakistan
A.chemical energy
B.electrostatic energy
C.electromagnetic energy
D.charged ions
Explanation: The correct answer is chemical energy.
Submitted by: Academy of Pakistan
A.Low, lagging
B.Any of the above
C.Unity
D.Low, leading
Explanation: The correct answer is Low, lagging.
Submitted by: Academy of Pakistan