A.nickel-cadmium cells
B.dry cells
C.solar cells
D.lead-acid batteries
Explanation: The correct answer is solar cells.
Submitted by: Academy of Pakistan
Electrical Engineering MCQs: 3,658 practice questions with answer choices and available explanations. Page 241 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 241 of 244 · 3,658 total solved questions available.
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A.a common core for its primary and secondary windings
B.no losses and magnetic leakage
C.core of stainless steel and winding of pure copper metal
D.interleaved primary and secondary windings
E.none of the above
Explanation: The correct answer is no losses and magnetic leakage.
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A.system voltage is reduced
B.system frequency is reduced Efficiency is the secondary consideration in
C.system power factor is changed
D.some loads are switched off
Explanation: The correct answer is some loads are switched off.
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A.house wiring
B.transformer, motor and generator windings
C.transmission and distribution lines
D.all above applications
Explanation: The correct answer is all above applications.
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A.stator slots are exact multiple of rotor slots
B.none of the above
C.stator slots are not exact multiple of rotor slots
D.stator slots are equal to rotor slots
Explanation: The correct answer is stator slots are not exact multiple of rotor slots.
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A.Loss of capacity
B.Corrosion of the grids of the plate
C.Loss of life
D.All above
Explanation: The correct answer is All above.
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A.none of the above
B.increase
C.remain the same
D.decrease
Explanation: The correct answer is remain the same.
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A.three-phase four wire
B.single phase
C.three-phase three wire
D.none of the above
Explanation: The correct answer is three-phase four wire.
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A.reducing
B.deoxidising
C.oxidizing
D.neutral
Explanation: The correct answer is oxidizing.
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A.Voltage amplifications
B.Current amplification
C.None of the above
D.Both voltage and current amplification
Explanation: The correct answer is Current amplification.
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A.net pole
B.two poles
C.no net pole
D.simple pole
Explanation: The correct answer is two poles.
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A.D. C.
B.A. C.
C.none of the above
D.any of above two
Explanation: The correct answer is D. C..
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A.zero inductance
B.increased inductance
C.reduced inductance
D.unchanged inductance
Explanation: The correct answer is reduced inductance.
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A.Relative stability
B.Frequency response
C.Time response
D.Absolute stability
Explanation: The correct answer is Relative stability.
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A.Ceramic capacitors must be connected in correct polarity
B.Mica capacitors are available in capacitance values of 5 to 20 uF
C.Air capacitors have a black band to indicate the outside foil
D.Electrolytic capacitors must be connected in correct polarity
Explanation: The correct answer is Electrolytic capacitors must be connected in correct polarity.
Submitted by: Academy of Pakistan