Q.1
The typical DME ground based responder beacon has a limit of ________ interrogations per second.
  • a) 2700
  • b) 270
  • c) 27
  • d) 27000
Q.2
The physical distance between the aircraft antenna and the DME transponder antenna is referred to as _________
  • a) Slant range
  • b) Slant height
  • c) Slant angle
  • d) Slant length
Q.3
The spacing of all channels is 1 Hz.
  • a) False
  • b) True
Q.4
Which of the following frequencies are used by an airplane’s DME interrogator?
  • a) 1025 mHz to 1150 mHz
  • b) 1025 Hz to 1150 Hz
  • c) 1025 MHz to 1150 MHz
  • d) 1025 KHz to 1150 KHz
Q.5
Which of the following is the range of frequency for the transmitting channel of DME transponders?
  • a) 962 mHz to 1213 mHz
  • b) 962 Hz to 1213 Hz
  • c) 962 KHz to 1213 KHz
  • d) 962 MHz to 1213 MHz
Q.6
How much is the difference between interrogation and reply frequencies?
  • a) 63 MHz
  • b) 63 Hz
  • c) 60 MHz
  • d) 63 Hz
Q.7
DME facilities use a ___________ Morse code in order to identify themselves.
  • a) 1,350 MHz
  • b) 1,350 Hz
  • c) 150 Hz
  • d) 150 MHz
Q.8
Terminal transponders generally work to a minimum height above ground of ________
  • a) 12,000 feet
  • b) 1200 feet
  • c) 120 feet
  • d) 12 feet
Q.9
What is the range of high altitude transponders?
  • a) 1300 nautical miles
  • b) 13 nautical miles
  • c) 100 nautical miles
  • d) 130 nautical miles
Q.10
How many frequencies are defined for DME interrogations and replies?
  • a) 25
  • b) 2520
  • c) 252
  • d) 22
Q.11
X channels have both interrogation and reply pulse pairs spaced bymicroseconds.
  • a) False
  • b) True
Q.12
The Y channels interrogation pulse pairs are spaced by __________
  • a) 36 milliseconds
  • b) 36 seconds
  • c) 36 microseconds
  • d) 36 nanoseconds
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