Basic Electrical MCQ

Basic Electrical MCQ | 0 comments

Basic Electrical Information MCQs - Electrical Engineering

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We shared the basic electricity objective questions and answers for electrical and electronic engineers. Electrical Engineering MCQs.

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    Question 1: When electric current passes through a bucket full of water, lot of bubbling is observed. This suggests that the type of supply is ?

  • none of the above
  • AC
  • DC
  • any of above two

    • Answers: DC

    Question 2: With three resistances connected in I parallel, if each dissipates ,20 W the total power supplied by the voltage source equals ?

  • 60W
  • 10W
  • 40W
  • 20W

    • Answers: 60W

    Question 3: If a parallel circuit is opened in the main line, the current ?

  • is zero in the highest resistive branch
  • is zero in the highest resistive branch
  • increases in each branch
  • is zero in all branches

    • Answers: is zero in all branches

    Question 4: Which is the best conductor of electricity ?

  • Carbon
  • Silver
  • Iron
  • Copper

    • Answers: Silver

    Question 5: Which one of the following does not have negative temperature coefficient ?

  • Mica
  • Paper
  • Aluminium
  • Rubber

    • Answers: Aluminium

    Question 6: One commercial unit of energy equals ?

  • ten kilowatt-hour
  • One watt-hour
  • 600 watt-seconds
  • One kilowatt-hour

    • Answers: One kilowatt-hour

    Question 7: The flow of current in solids is due to ?

  • nucleus
  • electrons
  • electrons and ions
  • atoms

    • Answers: electrons

    Question 8: The substances which have a large number of free electrons and offer a low resistance are called ?

  • insulators
  • semi-conductors
  • conductors
  • inductors

    • Answers: conductors

    Question 9: Out of the following which is not a poor conductor ?

  • Copper
  • Tungsten
  • Carbon
  • Cast iron

    • Answers: Copper

    Question 10: A sine wave voltage is applied across an inductor. When the frequency of the voltage is decreased, the current:

  • Momentarily goes to zero
  • Does not Chamge
  • Is decreased
  • Is Increased

    • Answers: Is Increased

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Total Questions Attempted: 0

Correct: 0 Wrong: 0

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