A.60 KHz
B.5 KHz
C.10 KHz
D.100 KHz
Explanation: The correct answer is 100 KHz.
Submitted by: Academy of Pakistan
Electrical Engineering MCQs: 3,658 practice questions with answer choices and available explanations. Page 48 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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Showing page 48 of 244 · 3,658 total solved questions available.
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A.electrons
B.protons
C.electric field
D.neutrons
Explanation: The correct answer is electric field.
Submitted by: Academy of Pakistan
A.it is run on voltage higher than the rated voltage
B.e.m.f. is injected in the rotor circuit
C.it is run on load
D.it is run in reverse direction
Explanation: The correct answer is e.m.f. is injected in the rotor circuit.
Submitted by: Academy of Pakistan
A.increases with increase of inductance and decrease of resistance
B.increases with decrease of inductance and increase of resistance
C.increases with the increase of inductance and the increase of resistance
D.increases with the decrease of inductance and decrease of resistance
Explanation: The correct answer is increases with increase of inductance and decrease of resistance.
Submitted by: Academy of Pakistan
A.gravitational field
B.electric field
C.nuclear field
D.magnetic hield
Explanation: The correct answer is electric field.
Submitted by: Academy of Pakistan
A.can be used for 50°C ambient temperature also
B.of higher H.P. should be selected
C.of lower H.P. should be selected
D.is to be derated by a factor recommended by manufacturer and select the next higher H.P. motor
Explanation: The correct answer is is to be derated by a factor recommended by manufacturer and select the next higher H.P. motor.
Submitted by: Academy of Pakistan
A.100 to 900 pF
B.1 to 20 pF
C.20 to 100 pF
D.10 to 400 pF
Explanation: The correct answer is 10 to 400 pF.
Submitted by: Academy of Pakistan
A.hum
B.ringing
C.buzz
D.zoom
Explanation: The correct answer is hum.
Submitted by: Academy of Pakistan
A.generators
B.all of the above
C.reactors
D.transformers
Explanation: The correct answer is generators.
Submitted by: Academy of Pakistan
A.improve power factor
B.improve efficiency
C.reduce copper losses
D.improve starting torque
Explanation: The correct answer is improve starting torque.
Submitted by: Academy of Pakistan
A.primary transmission
B.secondary distribution
C.secondary transmission
D.primary distribution
Explanation: The correct answer is secondary distribution.
Submitted by: Academy of Pakistan
A.initial cost is the main consideration
B.higher starting torque is the main consideration
C.maintenance cost is to be kept low
D.all above considerations are involved
Explanation: The correct answer is higher starting torque is the main consideration.
Submitted by: Academy of Pakistan
A.ordinary transistor
B.JFET
C.MOSFET
D.Crystal diode
Explanation: The correct answer is MOSFET.
Submitted by: Academy of Pakistan
A.gas tube
B.solid state
C.vacuum tube
D.none of the above
Explanation: The correct answer is solid state.
Submitted by: Academy of Pakistan
A.warping of plates
B.all above
C.boiling of electrolyte due to gassing
D.damage to separators, cell caps covers and battery case due to excessive temperature
Explanation: The correct answer is all above.
Submitted by: Academy of Pakistan