Communication Systems Multiple Choice Questions 1 PDF Download

Practice communication systems multiple choice questions (MCQs), A level physics test 1 for online exams. Practice radio waves MCQs questions and answers on radio waves, analogue and digital signals, channels comparison with answers. Free communication systems quiz, online study guide has helping answer key with choices as higher, lower, equal and may be higher or lower of multiple choice questions as as compared to sound waves frequency of radio waves is to test learning skills for viva exam preparation and job's interview questions. Study to learn radio waves quiz questions with online learning MCQs for competitive exam preparation test.

MCQ on Communication Systems Quiz PDF Download Test 1

MCQ. As compared to sound waves the frequency of radio waves is

  1. lower
  2. higher
  3. equal
  4. may be higher or lower

B

MCQ. Decrease in strength of signal is known as

  1. tuning
  2. modulation
  3. attenuation
  4. amplification

C

MCQ. If frequency of modulated wave is less than frequency of carrier wave, then input signal is

  1. negative
  2. positive
  3. zero
  4. infinite

A

MCQ. At the end of communication system, the signal is converted from radio to

  1. sound
  2. mechanical energy
  3. kinetic energy
  4. potential energy

A

MCQ. Energy is lost in wires due to

  1. heating
  2. resistance
  3. conduction
  4. both A and B

D