A 100 V carrier is made to vary between 160 V and 40 V by the signal. What is the modulation factor?
0A.5
B.6
C.3
D.None of the above
Explanation: The correct answer is 6.
Submitted by: Academy of Pakistan
Electrical Engineering MCQs: 3,658 practice questions with answer choices and available explanations. Page 25 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 25 of 244 · 3,658 total solved questions available.
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A.relays
B.fast switches
C.circuit breakers
D.fuses
Explanation: The correct answer is fast switches.
Submitted by: Academy of Pakistan
A.when steam is extracted only from the last stage of steam turbine
B.when steam is extracted from several places in different stages of steam turbine
C.when steam is extracted only from the first stage of steam turbine
D.when steam is extracted from only one suitable point of steam turbine
Explanation: The correct answer is when steam is extracted from several places in different stages of steam turbine.
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A.Pure water and liquids in general except mercury
B.Non-metal solids except carbon
C.Air and most other gases
D.All of the above
Explanation: The correct answer is All of the above.
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A.has large number of turns
B.has lower wattage rating
C.offers large number of tapping
D.has higher wattage rating
Explanation: The correct answer is has higher wattage rating.
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A.The incomplete part of an electron pair bond
B.A free electron
C.A free neutron
Explanation: The correct answer is The incomplete part of an electron pair bond.
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A.One state
B.Three states
C.Two states
D.None of the above
Explanation: The correct answer is Two states.
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A.999 Hz
B.2,176 Hz
C.4,591 Hz
D.459 Hz
Explanation: The correct answer is 4,591 Hz.
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A.large size machines
B.medium size machines
C.small size machines
D.any of the above
Explanation: The correct answer is medium size machines.
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A.0.555
B.0.6
C.0.5457
D.0.578
Explanation: The correct answer is 0.5457.
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A.D.C. series motor
B.Synchronous motor
C.Three-phase induction motor
D.Universal motor
Explanation: The correct answer is Synchronous motor.
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A.inductance
B.charge
C.current
D.capacitance
Explanation: The correct answer is current.
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A.None of the above
B.Co-ordinate
C.Covalent
D.Electrovalent
Explanation: The correct answer is Covalent.
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A.remain unchanged
B.fall
C.none of the above
D.rise
Explanation: The correct answer is remain unchanged.
Submitted by: Academy of Pakistan
A.short circuit fault on a cable
B.ground fault on a cable
C.both the ground fault and the short-circuit fault
D.none of the above
Explanation: The correct answer is both the ground fault and the short-circuit fault.
Submitted by: Academy of Pakistan