Communication Systems Multiple Choice Questions 1 PDF Download

Learn communication systems multiple choice questions (MCQs), A level physics test 1 for online course prep exams. Practice radio waves MCQs questions and answers on radio waves, analogue and digital signals, channels comparison for A level subjective tests online.

Free communication systems quiz online, study guide has multiple choice question on as compared to sound waves frequency of radio waves is with options higher, lower, equal and may be higher or lower to test online e-learning skills for viva exam prep and job's interview questions with answers key. 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 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 end of communication system, 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