Linear Modulation MCQ

Test your knowledge with important Linear Modulation MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Linear Modulation MCQs at Bissoy

• Noise gets mixed with signal at ________
  ক

  receiver

  খ

  transmitter

  গ

  transducer

  ঘ

  channel
• How capacitance is related to thickness?
  ক

  it is inversely proportional to thickness

  খ

  it is directly proportional to thickness

  গ

  it is inversely proportional to twice of thickness

  ঘ

  it is directly proportional to twice of thickness
• TV remote control used ultra violet light.
  ক

  True

  খ

  False
• What is the modulation index for a single tone modulation, given that positive peak of AM wave is 20V and minimum value is 2V?
  ক

  0.81

  খ

  0.91

  গ

  0.73

  ঘ

  1
• If the value of resistor becomes 16 times than its previous value then its noise voltage will become ________
  ক

  16 times

  খ

  8 times

  গ

  4 times

  ঘ

  2 times
• If the transmitted power is 100KW then the field at a distance ‘R’ is 60mV/m. Suppose if the transmitted power is reduced to 50KW then the field at same distance ‘R’ will be equal to ________
  ক

  50mV/m

  খ

  42mV/m

  গ

  45mV/m

  ঘ

  55mV/m
• Field strength (E) is directly proportional to the square of transmission power.
  ক

  True

  খ

  False
• Each frequency gives rise to four side bands.
  ক

  True

  খ

  False
• Squelch circuit is normally inserted in receiver ________
  ক

  after detector

  খ

  before detector

  গ

  before mixer

  ঘ

  after power amplifier
• Discone antenna is mainly used in UHF range.
  ক

  True

  খ

  False