AC Fundamentals - Electrical Engineering (MCQ)


MCQ Questions NCERT, Engineering Technical, Quantitative Aptitude, General knowledge, Reasoning, and Current Affairs for Competitive Exam test.


    Question 1: The period of a wave is?

  • none of the above
  • the same as frequency
  • time required to complete one cycle
  • expressed in amperes
  • Answers: time required to complete one cycle

    Question 2: In a highly capacitive circuit the?

  • reactive power is more than the actual power
  • actual power is more than its reactive power
  • apparent power is equal to the actual power
  • reactive power is more than the apparent power
  • Answers: reactive power is more than the actual power

    Question 3: The power is measured m terms of decibels in case of?

  • current transformers
  • transformers
  • auto-transformers
  • electronic equipment
  • Answers: electronic equipment

    Question 4: The best place to install a capacitor is?

  • any where
  • across the terminals of the inductive load
  • very near to inductive load
  • far away from the inductive load
  • Answers: across the terminals of the inductive load

    Question 5: In an A.C. circuit power is dissipated in?

  • none of the above
  • capacitance only
  • resistance only
  • inductance only
  • Answers: resistance only

    Question 6: Power factor of electric bulb is?

  • lagging
  • zero
  • leading
  • unity
  • Answers: unity

    Question 7: Capacitors for power factor correction are rated in ?

  • kW
  • kVAR
  • kV
  • kVA
  • Answers: kVAR

    Question 8: For the full wave rectified sine wave the RMS value is?

  • zero
  • 0.318 Imax
  • 0.707 Imax
  • 0.636 Imax
  • Answers: 0.707 Imax

    Question 9: Power factor of an electrical circuit is equal to?

  • all above
  • R/Z
  • cosine of phase angle difference between current and voltage
  • kW/kVA
  • Answers: all above

    Question 10: all above ?

  • none of the above
  • more than resonant frequency
  • resonant frequency
  • less than resonant frequency
  • Answers: less than resonant frequency

Report Card

Total Questions Attempted: 0

Correct: 0 Wrong: 0



Related Articles

AC Fundamental MCQ

AC circuit MCQ questions with explanation AC circuit objective questions with answers AC circuit multiple...

read more

AC Fundamental MCQ

Alternating Current MCQs. The frequency of the AC Mains in India is 50 Hz. An alternating current. AC...

read more