A.Oil
B.Ceramics
C.Glass
D.Paper
Explanation: The correct answer is Oil.
Submitted by: Academy of Pakistan
Electrical Engineering MCQs: 3,658 practice questions with answer choices and available explanations. Page 186 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 186 of 244 · 3,658 total solved questions available.
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A.while over-excited
B.only at synchronous speed
C.when under loaded
D.below or above synchronous speed
Explanation: The correct answer is only at synchronous speed.
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A.60%
B.75%
C.100%
D.50%
Explanation: The correct answer is 50%.
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A.none of the above
B.mica is harder than copper
C.mica and copper are equally hard
D.copper is harder than mica
Explanation: The correct answer is mica is harder than copper.
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A.windage losses
B.power scale of circle diagram
C.transformation ratio
D.copper losses
Explanation: The correct answer is windage losses.
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A.All of the above
B.Less liability to kink
C.Greater flexibility
D.Less liability to break
Explanation: The correct answer is All of the above.
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A.varies exponentially with the load current
B.is inversely proportional to load
C.is directly proportional to load
D.is almost independent of load current
Explanation: The correct answer is is almost independent of load current.
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A.voltage
B.energy
C.resistance
D.power
Explanation: The correct answer is voltage.
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A.voltage
B.power
C.current
D.None of the above
Explanation: The expression of current through a capacitor is
For sudden change of voltage infinite current is required. But practically it is not possible.
Practical capacitor circuit has finite value of time constant
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A.Resistance
B.Inductance
C.Capacitance
D.Conductance
Explanation: The correct answer is Capacitance.
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A.none of the above
B.pass through the base region to the collector
C.recombine in the base
D.recombine in the emitter
Explanation: The correct answer is pass through the base region to the collector.
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A.none of the above
B.33kVto66kV
C.HkVto33kV
D.3.3kVandllkV
Explanation: The correct answer is 3.3kVandllkV.
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A.cables using single dielectric in different concentrations
B.none of the above
C.capacitance required to be introduced at different lengths to counter the effect of inductance
D.use of dielectrics of different permeabilities
E.grading according to capacitance of cables per km length
Explanation: The correct answer is use of dielectrics of different permeabilities.
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A.Electron
B.Neutron
C.None of the above
D.Proton
Explanation: The correct answer is Electron.
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A.resonant waves
B.microwaves
C.ultrasonic waves
D.musical waves
Explanation: The correct answer is ultrasonic waves.
Submitted by: Academy of Pakistan