In resistance heating highest working temperature is obtained from heating elements made of________?
0A.nickel copper
B.silver
C.silicon carbide
D.nichrome
Explanation: The correct answer is silicon carbide.
Submitted by: Academy of Pakistan
Electrical Engineering MCQs: 3,658 practice questions with answer choices and available explanations. Page 16 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
Now you can submit the latest Electrical Engineering MCQs MCQs from your test! SUBMIT HERE
Electrical Engineering MCQs
Showing page 16 of 244 · 3,658 total solved questions available.
⚡Start Quiz Mode to Practice Like the Real Exam!
A.8R Ω
B.4R Ω
C.R Ω
D.2R Ω
Explanation: As per law of resistance, the resistance of the conductor is inversely proportional to its cross-sectional area i.e. it is inversely proportional to the square of the diameter of cross-sectional area of the conductor. As per same law of resistance, the resistance of the conductor is directly proportional to the length of the conductor.
Submitted by: Academy of Pakistan
A.2 watts
B.12 watts
C.4 watts
D.6 watts
Explanation: The correct answer is 12 watts.
Submitted by: Academy of Pakistan
A.anode voltage drops from 10 % of its initial value to zero
B.anode current rises from 10 % to 90 % of its final value
C.anode current rises from 90 % to its final value
D.both (A) and (B)
Explanation: The correct answer is anode current rises from 90 % to its final value.
Submitted by: Academy of Pakistan
A.1 joule/coulomb
B.1 newton meter
C.1 meter/coulomb
Explanation: The correct answer is 1 newton meter.
Submitted by: Academy of Pakistan
A.R and C in series but with diode across R
B.R and C in series but with diode across C
C.Series R and diode with C across R
Explanation: The correct answer is R and C in series but with diode across R.
Submitted by: Academy of Pakistan
A.bridge full-wave rectifier
B.centre-tap full-wave rectifier
C.none of the above
D.half-wave rectifier
Explanation: The correct answer is centre-tap full-wave rectifier.
Submitted by: Academy of Pakistan
A.none of the above
B.all of above
C.inductors
D.synchronous motors
E.capacitors
Explanation: The correct answer is synchronous motors.
Submitted by: Academy of Pakistan
A.neither A. nor B.
B.running cost of unit generated
C.fixed cost of unit generated
D.both A. and B.
Explanation: The correct answer is fixed cost of unit generated.
Submitted by: Academy of Pakistan
A.none of the above
B.both a.c. and d.c
C.a.c
D.d.c
Explanation: The correct answer is d.c.
Submitted by: Academy of Pakistan
A.None of the above
B.XL increases and XC decreases
C.Line current becomes minimum
D.XL decreases and XC increases
Explanation: The correct answer is XL decreases and XC increases.
Submitted by: Academy of Pakistan
A.mA
B.6 mA
C.1 mA
D.3 mA
Explanation: The correct answer is 3 mA.
Submitted by: Academy of Pakistan
A.360°
B.90°
C.0°
D.180°
Explanation: The correct answer is 180°.
Submitted by: Academy of Pakistan
A.in none of the above cases
B.where low voltage and high currents are involved
C.where high voltage and small cur-rents are involved
D.in both of the above cases
Explanation: The correct answer is where low voltage and high currents are involved.
Submitted by: Academy of Pakistan
A.very high
B.high
C.low
D.almost zero
Explanation: The correct answer is low.
Submitted by: Academy of Pakistan