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#### AC Fundamentals - Electrical Engineering (MCQ)

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

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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
• unity

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

• kW
• kVAR
• kV
• kVA

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

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Total Questions Attempted: 0

Correct: 0 Wrong: 0

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