ATO2 NAVY ADVANCEMENT EXAM
(UPDATED 2025) |GUARANTEED
ACCURATE ANSWERS
What are the two main factors that affect the velocity of sound in
seawater? - ACCURATE ANSWERS✔✔ The temperature and salinity
of the water.
A sound wave traveling from an area of warm water into an area of cold
water will be affected in what way? - ACCURATE ANSWERS✔✔ 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? - ACCURATE ANSWERS✔✔
Active sonobuoys
Sonobuoys equipped with an EFS system have what capability? -
ACCURATE ANSWERS✔✔ The capability of selecting channel, life
and depth settings
What information can a DIFAR sonobuoy provide that a LOFAR
sonobuoy cannot? - ACCURATE ANSWERS✔✔ Submarine bearing.
,Which of the following sonobuoys provides water temperature data? -
ACCURATE ANSWERS✔✔ BT sonobuoys
The OTPI system provides what information to the USW pilot? -
ACCURATE ANSWERS✔✔ Sonobuoy bearing information with
respect to aircraft heading.
What type of naval aircraft employs the AN/ASQ-13F dipping sonar
system? - ACCURATE ANSWERS✔✔ SH60-F
On a dipping sonar system, what component generates and transmits
sound energy into the water? - ACCURATE ANSWERS✔✔ The
transducer.
What does the acronym IFF stands for? - ACCURATE ANSWERS✔✔
Identification Friend or Foe
What are the three basic steps in the identification process of a typical
IFF system? - ACCURATE ANSWERS✔✔ Challenge, decode, and
reply
True or False. All naval aircraft contain an interrogator system. -
ACCURATE ANSWERS✔✔ False
, What is the pulse spacing of Mode 1? - ACCURATE ANSWERS✔✔
2.9 to 3.1 microseconds
Of the six modes of IFF operation, which one is used by military and
civilian aircraft control stations? - ACCURATE ANSWERS✔✔ Mode
3/A
What mode IFF is the military encrypted mode? - ACCURATE
ANSWERS✔✔ Mode 4
What is the transmission frequency of the interrogator? - ACCURATE
ANSWERS✔✔ 1030MHz
In a typical IFF/SIF system, what total number of codes can be selected
in Mode 2? - ACCURATE ANSWERS✔✔ 4096
The Identification of Position (I/P) pulse is used for what purpose? -
ACCURATE ANSWERS✔✔ 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? -
ACCURATE ANSWERS✔✔ Mode 2
(UPDATED 2025) |GUARANTEED
ACCURATE ANSWERS
What are the two main factors that affect the velocity of sound in
seawater? - ACCURATE ANSWERS✔✔ The temperature and salinity
of the water.
A sound wave traveling from an area of warm water into an area of cold
water will be affected in what way? - ACCURATE ANSWERS✔✔ 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? - ACCURATE ANSWERS✔✔
Active sonobuoys
Sonobuoys equipped with an EFS system have what capability? -
ACCURATE ANSWERS✔✔ The capability of selecting channel, life
and depth settings
What information can a DIFAR sonobuoy provide that a LOFAR
sonobuoy cannot? - ACCURATE ANSWERS✔✔ Submarine bearing.
,Which of the following sonobuoys provides water temperature data? -
ACCURATE ANSWERS✔✔ BT sonobuoys
The OTPI system provides what information to the USW pilot? -
ACCURATE ANSWERS✔✔ Sonobuoy bearing information with
respect to aircraft heading.
What type of naval aircraft employs the AN/ASQ-13F dipping sonar
system? - ACCURATE ANSWERS✔✔ SH60-F
On a dipping sonar system, what component generates and transmits
sound energy into the water? - ACCURATE ANSWERS✔✔ The
transducer.
What does the acronym IFF stands for? - ACCURATE ANSWERS✔✔
Identification Friend or Foe
What are the three basic steps in the identification process of a typical
IFF system? - ACCURATE ANSWERS✔✔ Challenge, decode, and
reply
True or False. All naval aircraft contain an interrogator system. -
ACCURATE ANSWERS✔✔ False
, What is the pulse spacing of Mode 1? - ACCURATE ANSWERS✔✔
2.9 to 3.1 microseconds
Of the six modes of IFF operation, which one is used by military and
civilian aircraft control stations? - ACCURATE ANSWERS✔✔ Mode
3/A
What mode IFF is the military encrypted mode? - ACCURATE
ANSWERS✔✔ Mode 4
What is the transmission frequency of the interrogator? - ACCURATE
ANSWERS✔✔ 1030MHz
In a typical IFF/SIF system, what total number of codes can be selected
in Mode 2? - ACCURATE ANSWERS✔✔ 4096
The Identification of Position (I/P) pulse is used for what purpose? -
ACCURATE ANSWERS✔✔ 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? -
ACCURATE ANSWERS✔✔ Mode 2
