A.6.4 A, 6.9 A
B.4.6 A, 6.9 A
C.4.6 A, 9.6 A
D.6.4 A, 9.6 A
Explanation: The correct answer is 6.4 A, 9.6 A.
Submitted by: Academy of Pakistan
Electrical Engineering MCQs: 3,658 practice questions with answer choices and available explanations. Page 221 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 221 of 244 · 3,658 total solved questions available.
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A.speed of the motor
B.both the speed and rotor flux
C.d.c. excitation only
D.load on the motor
Explanation: The correct answer is d.c. excitation only.
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A.high
B.small
C.the same as rated voltage
D.zero
Explanation: The correct answer is zero.
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A.transistors
B.ferrite cores
C.copper conductors
D.vacuum tubes
Explanation: The correct answer is vacuum tubes.
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A.heating element in high temperature furnace
B.electrical contacts
C.thermocouple
D.all of the above
E.grids of special purpose vacuum tubes
Explanation: The correct answer is all of the above.
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A.the windage losses will increase
B.the magnetising current of the rotor will decrease
C.speed of motor will increase
D.the power factor will decrease
Explanation: The correct answer is the power factor will decrease.
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A.none of the above
B.rotor speed is more than the synchronous speed of the field and are in the same direction
C.rotor speed is less than the synchronous speed of the field and are in the same direction
D.magnetic field and rotor rotate in opposite direction
Explanation: The correct answer is rotor speed is more than the synchronous speed of the field and are in the same direction.
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A.Lathe
B.Punching machine
C.Planer
D.Printing machine
Explanation: Punching machines impose sudden, intermittent mechanical loads and therefore produce heavy load fluctuations.
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A.25 mm to 40 mm
B.4 mm to 5 mm
C.0.4 mm to 0.5 mm
D.14 mm to 15 mm
Explanation: The correct answer is 0.4 mm to 0.5 mm.
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A.provide proper stress distribution
B.none of the above
C.avoid the requirement of good insulation
D.minimize the stress
Explanation: The correct answer is provide proper stress distribution.
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A.Continuous duty motors
B.Short time rated motors
C.Slow speed motors
D.None of the above
Explanation: The correct answer is Short time rated motors.
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A.An operating torque system
B.Revolution registering device
C.All of the above
D.A braking device
Explanation: The correct answer is All of the above.
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A.any of the above
B.electrons
C.ions
D.ions and electrons
Explanation: The correct answer is ions.
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A.06 kW
B.9 kW
C.6 kW
D.8 kW
Explanation: The correct answer is 06 kW.
Submitted by: Academy of Pakistan
A.get heated and subsequently get damaged
B.stall immediately
C.continue to run at lower speed without damage
D.stall after sometime
Explanation: The correct answer is get heated and subsequently get damaged.
Submitted by: Academy of Pakistan