Avionics MCQ

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

• What is the minimum safe approach distance for a radar system operating in excess of 5kWhr?
  ক

  100ft

  খ

  10ft

  গ

  17ft

  ঘ

  4ft
• A power of 5 kW to 50 kW is required even when using narrow beams.
  ক

  True

  খ

  False
• What is the gain required by a weather radar antenna?
  ক

  65 dB

  খ

  50 dB

  গ

  25 dB

  ঘ

  5 dB
• What is the frequency of operation of weather radar?
  ক

  1000 MHz

  খ

  500 kHz

  গ

  9375 MHz

  ঘ

  548 kHz
• What is the range of typical weather radar?
  ক

  500 nmi

  খ

  50 nmi

  গ

  5 nmi

  ঘ

  200 nmi
• Whisper shout is used to avoid garble in TCAS.
  ক

  True

  খ

  False
• TCAS I provide proximity warning only.
  ক

  True

  খ

  False
• What is the surveillance range of a general TCAS system?
  ক

  30 sec

  খ

  20 min

  গ

  2 min

  ঘ

  4 min
• What does the threshold number for Tau depend on?
  ক

  Speed of the aircraft

  খ

  Size of the aircraft

  গ

  Experience of the pilots

  ঘ

  Maneuverability of the aircraft
• The time between the collision of two aircraft on a collision course is called _____
  ক

  Differential time

  খ

  Tau

  গ

  Traffic time

  ঘ

  Collision time
• Both ATCRBS and mode S have the same range.
  ক

  True

  খ

  False
• A mode S transponder is silent when it is not interrogated.
  ক

  True

  খ

  False
• Transmission of modes reply at regular interval to aid TACS is called ________
  ক

  Garble

  খ

  Squitter

  গ

  Fruit

  ঘ

  Pulsed Radar
• The error caused by two aircraft flying close to each other replying to the same interrogation pulse is called ______
  ক

  Garble

  খ

  Fruit

  গ

  Noise

  ঘ

  Interference
• How does mode S identify each aircraft?
  ক

  Unique code for each transponder

  খ

  Lapsed time

  গ

  RCS

  ঘ

  Directly talking to the pilot
• What are the numbers of non-selective interrogations in mode S system?
  ক

  5

  খ

  6

  গ

  7

  ঘ

  8
• Which mode is used for selective calling?
  ক

  Mode A

  খ

  Mode B

  গ

  Mode C

  ঘ

  Mode S
• What is the frequency of interrogation pulse in secondary radar?
  ক

  1020 MHz

  খ

  1300 MHz

  গ

  1030 MHz

  ঘ

  1500 MHz
• How does mode S system differ from mode A and C?
  ক

  Extension of secondary radar

  খ

  Uses pulse technology

  গ

  More data can be transferred

  ঘ

  One way travel of radio signal
• What is the time separation for P1 and P3 for mode A secondary radar?
  ক

  8 μs

  খ

  21 μs

  গ

  6 μs

  ঘ

  4 μs
• The undesirable responses from buildings and clouds for the radar pulse are called as __________
  ক

  Noise

  খ

  Disturbance

  গ

  Clutter

  ঘ

  Radio error
• Which mode of the secondary radar gives only altitude?
  ক

  Mode A

  খ

  Mode B

  গ

  Mode C

  ঘ

  Mode S
• The strength of a secondary radar varies inversely with distance to the ______ power.
  ক

  Second

  খ

  Fourth

  গ

  Eighth

  ঘ

  Zeroth
• Secondary radar can identify an aircraft flying in its range.
  ক

  True

  খ

  False
• What is the reflected pulse in primary radar called?
  ক

  Reply

  খ

  Return

  গ

  Echo

  ঘ

  Radio reply
• The ability of the antenna to turn radiated energy into conducted energy is called ____________
  ক

  Return ratio

  খ

  Power ratio

  গ

  Capture area

  ঘ

  RCS
• Which of the following is false with respect to secondary radar?
  ক

  Requires more power than primary radar

  খ

  Needs a transponder device on the aircraft

  গ

  IFF

  ঘ

  Better range
• What is one of the main objectives of a military aircraft design?
  ক

  High heat signature

  খ

  Low RCS

  গ

  High RCS

  ঘ

  Highly stable configuration
• The transmitted and received power is the same in a primary radar.
  ক

  True

  খ

  False
• How well a target backscatters radar depends on ________
  ক

  The objects RCS

  খ

  Power of radar

  গ

  Speed of the object

  ঘ

  Heat signature of the object