A.Base 3
B.Base8
C.Base 16
D.Base 10
Explanation: The correct answer is Base 3.
Submitted by: Academy of Pakistan
Electrical Engineering MCQs: 3,658 practice questions with answer choices and available explanations. Page 61 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 61 of 244 · 3,658 total solved questions available.
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A.4 parts of acid to 6 parts of water
B.4 parts of acid to 4 parts of water
C.4 parts of acid to 8 parts of water
D.6 parts of acid to 4 parts of water
Explanation: The correct answer is 4 parts of acid to 6 parts of water.
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A.60 to 90%
B.80 to 90%
C.99%
D.95 to 98%
Explanation: The correct answer is 80 to 90%.
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A.100 A
B.300 A
C.200 A
D.400 A
Explanation: The correct answer is 400 A.
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A.current leads the voltage by 90°
B.current is in phase with the voltage
C.current lags behind the voltage by 90°
D.current can lead or lag the voltage by 90°
Explanation: The correct answer is current is in phase with the voltage.
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A.both ion and electron streams will move in the same direction
B.the rectifier will operate at reduced efficiency
C.the rectifier will not operate
D.internal losses will be reduced
Explanation: The correct answer is the rectifier will not operate.
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A.either of the above
B.none of the above
C.decrease
D.increase
Explanation: The correct answer is increase.
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A.expenditure of energy in overcoming the electrostatic field
B.surface resistance
C.expenditure of energy in liberating electrons from the mercury
D.expenditure of energy in ionization
Explanation: The correct answer is expenditure of energy in liberating electrons from the mercury.
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A.unity
B.zero
C.lagging
D.leading
Explanation: The correct answer is lagging.
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A.conductance
B.electromotive force
C.magnetomotive force
D.permittivity
Explanation: The correct answer is magnetomotive force.
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A.Reduces the effect of eddy current
B.Increases the mutual inductance between the solenoid and the core
C.Decreases the resistance of the solenoid
D.Improves the flux linkage between the turns of the coil
Explanation: The correct answer is Improves the flux linkage between the turns of the coil.
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A.The discharge current grows exponentially
B.The discharge current grows linearly
C.The discharge current decreases at a constant rate
D.The discharge current decays exponentially
Explanation: The correct answer is The discharge current decays exponentially.
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A.the power drawn in kVA
B.the gross power
C.the output power available at the shaft
D.the power drawn in kW
Explanation: The correct answer is the output power available at the shaft.
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A.It requires no D.C. field excitation for its operation
B.It is nothing else but a single-phase, salient pole synchronous-induction motor
C.Its squirrel cage-rotor is of unsym-metrical magnetic construction in order to vary reluctance path between stator and rotor
D.It cannot be reversed, ordinarily
Explanation: The correct answer is It cannot be reversed, ordinarily.
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A.increase its reserve capacity
B.keep it fresh and fully charged
C.prevent sulphation
D.maintain proper electrolyte level
Explanation: The correct answer is keep it fresh and fully charged.
Submitted by: Academy of Pakistan