A.both B. and C.
B.Oil on the rails
C.Dew on rails
D.Sand on rails
Explanation: The correct answer is both B. and C..
Submitted by: Academy of Pakistan
Electrical Engineering MCQs: 3,658 practice questions with answer choices and available explanations. Page 92 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 92 of 244 · 3,658 total solved questions available.
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A.Angular momentum
B.Electric field
C.Linear momentum
D.Electric potential
Explanation: The correct answer is Angular momentum.
Submitted by: Academy of Pakistan
A.a reverse bias
B.none of the above
C.a wide depletion layer
D.low resistance
Explanation: The correct answer is low resistance.
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A.Core saturation
B.loose connections
C.poor insulation
D.Overload
Explanation: The correct answer is Core saturation.
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A.q/VA
B.F/A
C.VF/A
D.V/A
Explanation: The correct answer is V/A.
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A.ferromagnetic substances
B.diamagnetic substances
C.none of the above
D.non-magnetic substances
Explanation: The correct answer is ferromagnetic substances.
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A.Both A and B
B.AC
C.none of these
D.DC
Explanation: The correct answer is DC.
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If the resistance of a conductor does not vary in accordance with Ohm’s law it is known as________?
0A.reverse conductor
B.non-linear conductor
C.non-conductor
D.bad-conductor
Explanation: The correct answer is non-linear conductor.
Submitted by: Academy of Pakistan
A.none of the above
B.peak load plant
C.base load plant
D.standby plant
Explanation: Base Load and Peak Load power plants
Power plants are categorized as base load and peak load power plants.
Base Load Power plants:
Plants that are running continuously over extended periods of time are said to be base load power plant.
The power from these plants is used to cater the base demand of the grid. A power plant may run as a base load power plant due to various factors (long starting time requirement, fuel requirements, etc.).
Examples of base load power plants are:
Nuclear power plant
Coal power plant
Hydroelectric plant
Geothermal plant
Biogas plant
Biomass plant
Solar thermal with storage
Ocean thermal energy conversion
Peak Load Power plants:
To cater the demand peaks, peak load power plants are used. They are started up whenever there is a spike in demand and stopped when the demand recedes.
Examples of Peak load power plants are:
Gas plant
Solar power plants
Wind turbines
Diesel generators
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A.two current circuits and one pres¬sure circuit
B.none of the above
C.one current circuit and one pressure circuit
D.one current circuit and two pressure circuits
Explanation: The correct answer is one current circuit and two pressure circuits.
Submitted by: Academy of Pakistan
A.decreases with increasing cross sectional area of material
B.any of the above
C.does not vary with increasing cross-sectional area of material
D.increases with increasing cross-sec-tional area of material
Explanation: The correct answer is decreases with increasing cross sectional area of material.
Submitted by: Academy of Pakistan
A.hoists
B.machine tools
C.trains
D.cranes
Explanation: The correct answer is machine tools.
Submitted by: Academy of Pakistan
To achieve sparkless commutation brushes of a D.C. generator are rockedm ahead so as to bring them?
0A.none
B.just ahead of magnetic neutral axis
C.just behind the magnetic neutral axis
D.in magnetic neutral axis
Explanation: The correct answer is just ahead of magnetic neutral axis.
Submitted by: Academy of Pakistan
A.5
B.6
C.3
D.4
Explanation: The correct answer is 5.
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A.always 2-layer type
B.none of the above
C.never 2-layer type
D.sometimes 2-layer type
Explanation: The correct answer is always 2-layer type.
Submitted by: Academy of Pakistan