PPSC Past Papers MCQs

PPSC Past Papers Most Repeated  — 741 MCQs  (Page 21 of 75)

Practice PPSC Past Papers MCQs with solved questions from real past exams. These MCQs cover PPSC Past Papers Most Repeated past papers and are ideal for candidates preparing for competitive exams.

View Tests (30 MCQs each)
What is termed as a network which is used to divide the input signal into separate frequency ranges for each speaker?
  • A. Multi-way speaker
  • B. Crossover network
  • C. Optical recording
  • D. Bilateral network
Which of the following network is shown in below figure?
  • A. Three-way system
  • B. Crossover
  • C. Blue ray
  • D. Optical recording
What is termed as the point where the curve of woofer output crosses the curve of tweeter output?
  • A. Crossover amplitude
  • B. Crossover phase
  • C. Crossover frequency
  • D. Crossover cycle
What is the equation for capacitance in crossover network?
  • A. C = 1 / 2πfc∊2rl
  • B. C = 1 / 2πfl∊2rc
  • C. C = 100 / 2πfc∊2rl
  • D. C = 10 / 2πfc∊2rl
What is the equation for inductance in crossover network?
  • A. L = ˆ?2rl / 2πfc
  • B. L = ˆ?2rc / 2πfl
  • C. L = ˆ?2rl / 20πfc
  • D. L = 2πfc / ˆ?2rl
What is the range of woofer for 3 way speaker system?
  • A. 20 hz to 500 hz
  • B. 50 hz to 5000 hz
  • C. 2000 hz to 5000 hz
  • D. 500 hz to 5000 hz
What is the range of tweeter for 3 way speaker system?
  • A. 2000 hz to 5000 hz
  • B. 5000 hz to 20,000 hz
  • C. 500 hz to 5000 hz
  • D. 20 hz to 500 hz
Design a crossover network to give 12 dB per octave attenuation for critical frequency of 0.5 KHz. Loudspeaker is having resistance of 8 Ω.
  • A. C = 200 μf, l = 5.9 mh
  • B. C = 28.13 μf, l = 3.6 mh
  • C. C = 45.78 μf, l = 2.9 mh
  • D. C = 67.34 μf, l = 9.9 mh
What are the bits transmitted for the NRZ-L system?
  • A. 10001101
  • B. 1001110
  • C. 10110001
  • D. 10001101