A.30 Hz
B.40 Hz
C.50 Hz
D.20 Hz
Explanation: The correct answer is 50 Hz.
Submitted by: Academy of Pakistan
Electrical Engineering MCQs: 3,658 practice questions with answer choices and available explanations. Page 100 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 100 of 244 · 3,658 total solved questions available.
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A.A torque about vertical axis
B.An upward force along the axis
C.A torque about horizontal axis
D.No resultant force
Explanation: The correct answer is No resultant force.
Submitted by: Academy of Pakistan
The r.m.s. value of a sinusoidal A.C. current is equal to its value at an angle of________degrees?
0A.90
B.45
C.60
D.30
Explanation: The correct answer is 45.
Submitted by: Academy of Pakistan
A.G/(n-1)
B.G/n
C.nG
D.(n-1)G
Explanation: The correct answer is (n-1)G.
Submitted by: Academy of Pakistan
A.conductor
B.insulation
C.outer sheath
D.uniformly all over
Explanation: The correct answer is insulation.
Submitted by: Academy of Pakistan
A.Sidebands
B.Carrier
C.Both sidebands and carrier
D.None of the above
Explanation: The correct answer is Sidebands.
Submitted by: Academy of Pakistan
A.Pumped storage plant
B.Nuclear power plant
C.Gas turbine plant
D.Diesel engine plant
Explanation: The correct answer is Nuclear power plant.
Submitted by: Academy of Pakistan
A.Either (a) or (b)
B.Positive voltage at the gate terminal
C.Negative voltage at the gate terminal
D.None of these
Explanation: The correct answer is Either (a) or (b).
Submitted by: Academy of Pakistan
A.maximum demand tariff
B.any of the above
C.flat rate tariff
D.two part tariff
Explanation: The correct answer is maximum demand tariff.
Submitted by: Academy of Pakistan
A.either of the inputs is “1”
B.all the inputs are ‘0’
C.all the inputs and outputs are complemented
D.all the inputs to the gates are “1”
Explanation: The correct answer is all the inputs and outputs are complemented.
Submitted by: Academy of Pakistan
A.may be greater or less than 250 V
B.none of the above
C.will be less than 250 V
D.will always be 250 V
Explanation: The correct answer is may be greater or less than 250 V.
Submitted by: Academy of Pakistan
A.Lower frequencies are easier to amplify
B.The difference frequency is closer to oscillator frequency
C.Only the difference frequency can be modulated
D.None of the above
Explanation: The correct answer is Lower frequencies are easier to amplify.
Submitted by: Academy of Pakistan
A.High mechanical strength
B.Low cost
C.Longer life
D.All of the above
Explanation: The correct answer is All of the above.
Submitted by: Academy of Pakistan
A.less than full load current
B.slightly more than full load current
C.several times the full load current
D.equal to full load current
Explanation: The correct answer is slightly more than full load current.
Submitted by: Academy of Pakistan
A.Farad
B.Ohm
C.None of the above
D.Henry
Explanation: The correct answer is Ohm.
Submitted by: Academy of Pakistan