ATO2 NAVY ADVANCEMENT EXAM TEST
BANK 2026 SOLVED QUESTIONS 100
PERCENT CORRECT
⫸ A sound wave traveling from an area of warm water into an area of
cold water will be affected in what way? Answer: It will bend toward the
area of cold water.
⫸ Sonobuoys that transmit an acoustic pulse and detect a resulting echo
are classified as what type of sonobuoy? Answer: Active sonobuoys
⫸ Sonobuoys equipped with an EFS system have what capability?
Answer: The capability of selecting channel, life and depth settings
⫸ What information can a DIFAR sonobuoy provide that a LOFAR
sonobuoy cannot? Answer: Submarine bearing.
⫸ Which of the following sonobuoys provides water temperature data?
Answer: BT sonobuoys
⫸ The OTPI system provides what information to the USW pilot?
Answer: Sonobuoy bearing information with respect to aircraft heading.
⫸ What type of naval aircraft employs the AN/ASQ-13F dipping sonar
system? Answer: SH60-F
,⫸ On a dipping sonar system, what component generates and transmits
sound energy into the water? Answer: The transducer.
⫸ What does the acronym IFF stands for? Answer: Identification Friend
or Foe
⫸ What are the three basic steps in the identification process of a typical
IFF system? Answer: Challenge, decode, and reply
⫸ True or False. All naval aircraft contain an interrogator system.
Answer: False
⫸ What is the pulse spacing of Mode 1? Answer: 2.9 to 3.1
microseconds
⫸ Of the six modes of IFF operation, which one is used by military and
civilian aircraft control stations? Answer: Mode 3/A
⫸ What mode IFF is the military encrypted mode? Answer: Mode 4
⫸ What is the transmission frequency of the interrogator? Answer:
1030MHz
⫸ In a typical IFF/SIF system, what total number of codes can be
selected in Mode 2? Answer: 4096
, ⫸ The Identification of Position (I/P) pulse is used for what purpose?
Answer: It is used to identify a specific friendly aircraft among other
friendly aircraft that reply with the same code.
⫸ What mode of IFF is set prior to takeoff by maintenance personnel?
Answer: Mode 2
⫸ Where are Modes 1 and 3/A selected on the AN/APX-72 transponder
set? Answer: By thumbwheel switches on the front of the control box.
⫸ What part of the APX-72 system provides for ground or in-flight
transponder testing capability? Answer: The Transponder Test Set TS-
1843/APX
⫸ The AN/APX-72 generates a signal of what frequency when
interrogated? Answer: 1090 MHz
⫸ The interrogator works in conjunction with what other aircraft
system? Answer: The radar.
⫸ What component of the interrogator set is used to select SIF reply
codes for Modes 1, 2, and 3/A? Answer: C-7383/APX-76(V) control
box
BANK 2026 SOLVED QUESTIONS 100
PERCENT CORRECT
⫸ A sound wave traveling from an area of warm water into an area of
cold water will be affected in what way? Answer: It will bend toward the
area of cold water.
⫸ Sonobuoys that transmit an acoustic pulse and detect a resulting echo
are classified as what type of sonobuoy? Answer: Active sonobuoys
⫸ Sonobuoys equipped with an EFS system have what capability?
Answer: The capability of selecting channel, life and depth settings
⫸ What information can a DIFAR sonobuoy provide that a LOFAR
sonobuoy cannot? Answer: Submarine bearing.
⫸ Which of the following sonobuoys provides water temperature data?
Answer: BT sonobuoys
⫸ The OTPI system provides what information to the USW pilot?
Answer: Sonobuoy bearing information with respect to aircraft heading.
⫸ What type of naval aircraft employs the AN/ASQ-13F dipping sonar
system? Answer: SH60-F
,⫸ On a dipping sonar system, what component generates and transmits
sound energy into the water? Answer: The transducer.
⫸ What does the acronym IFF stands for? Answer: Identification Friend
or Foe
⫸ What are the three basic steps in the identification process of a typical
IFF system? Answer: Challenge, decode, and reply
⫸ True or False. All naval aircraft contain an interrogator system.
Answer: False
⫸ What is the pulse spacing of Mode 1? Answer: 2.9 to 3.1
microseconds
⫸ Of the six modes of IFF operation, which one is used by military and
civilian aircraft control stations? Answer: Mode 3/A
⫸ What mode IFF is the military encrypted mode? Answer: Mode 4
⫸ What is the transmission frequency of the interrogator? Answer:
1030MHz
⫸ In a typical IFF/SIF system, what total number of codes can be
selected in Mode 2? Answer: 4096
, ⫸ The Identification of Position (I/P) pulse is used for what purpose?
Answer: It is used to identify a specific friendly aircraft among other
friendly aircraft that reply with the same code.
⫸ What mode of IFF is set prior to takeoff by maintenance personnel?
Answer: Mode 2
⫸ Where are Modes 1 and 3/A selected on the AN/APX-72 transponder
set? Answer: By thumbwheel switches on the front of the control box.
⫸ What part of the APX-72 system provides for ground or in-flight
transponder testing capability? Answer: The Transponder Test Set TS-
1843/APX
⫸ The AN/APX-72 generates a signal of what frequency when
interrogated? Answer: 1090 MHz
⫸ The interrogator works in conjunction with what other aircraft
system? Answer: The radar.
⫸ What component of the interrogator set is used to select SIF reply
codes for Modes 1, 2, and 3/A? Answer: C-7383/APX-76(V) control
box
