ATO2 NAVY ADVANCEMENT UPDATED EXAM
TEST PAPER QUESTIONS AND ANSWERS SURE A+
✔✔What type of insulator works well at very high frequencies? - ✔✔A shorted quarter-
wave section called a metallic insulator.
✔✔The frequency range of a waveguide is determined by what dimensison? - ✔✔The
"a" dimension.
✔✔What interaction causes energy to travel down a waveguide? - ✔✔The interaction of
the electric and magnetic fields
✔✔What is matter, and in what three states is it found? - ✔✔Anything that occupies
space and has weight. Solids, liquids, gases.
✔✔What is an element? - ✔✔A substance which cannot be reduced to a simpler
substance by chemical means.
✔✔What is a compound? - ✔✔A substance consisting of two or more elements
✔✔What is the difference between a compound and a mixture? - ✔✔A compound is a
chemical combination of elements that cannot be separated by physical means. A
, mixture is a physical combination of elements and compounds that are not chemically
combined.
✔✔What is a molecule? - ✔✔A chemical combination of two or more atoms.
✔✔What are the three types of subatomic particles, and what are their charges? -
✔✔Electrons-negative, protons-positive, and neutrons-neutral.
✔✔What is energy of motion called? - ✔✔Kinetic energy.
✔✔How is invisible light changed to visible light in a fluorescent light? - ✔✔Invisible light
photons (ultraviolet) bombard the phosphor atom in the light tube. The phosphor atoms
emit visible light photons.
✔✔What determines the valence of an atom? - ✔✔The number of electrons in the outer
shell.
✔✔What is an ion? - ✔✔An atom with more or less than its normal number of electrons.
✔✔Name the six methods of producing a voltage. - ✔✔Friction, pressure, heat, light,
chemical action, and magnetism.
✔✔ What are the two main factors that affect the velocity of sound in seawater? -
✔✔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? - ✔✔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? - ✔✔Active sonobuoys
✔✔Sonobuoys equipped with an EFS system have what capability? - ✔✔The capability
of selecting channel, life and depth settings
✔✔What information can a DIFAR sonobuoy provide that a LOFAR sonobuoy cannot? -
✔✔Submarine bearing.
✔✔Which of the following sonobuoys provides water temperature data? - ✔✔BT
sonobuoys
✔✔The OTPI system provides what information to the USW pilot? - ✔✔Sonobuoy
bearing information with respect to aircraft heading.
TEST PAPER QUESTIONS AND ANSWERS SURE A+
✔✔What type of insulator works well at very high frequencies? - ✔✔A shorted quarter-
wave section called a metallic insulator.
✔✔The frequency range of a waveguide is determined by what dimensison? - ✔✔The
"a" dimension.
✔✔What interaction causes energy to travel down a waveguide? - ✔✔The interaction of
the electric and magnetic fields
✔✔What is matter, and in what three states is it found? - ✔✔Anything that occupies
space and has weight. Solids, liquids, gases.
✔✔What is an element? - ✔✔A substance which cannot be reduced to a simpler
substance by chemical means.
✔✔What is a compound? - ✔✔A substance consisting of two or more elements
✔✔What is the difference between a compound and a mixture? - ✔✔A compound is a
chemical combination of elements that cannot be separated by physical means. A
, mixture is a physical combination of elements and compounds that are not chemically
combined.
✔✔What is a molecule? - ✔✔A chemical combination of two or more atoms.
✔✔What are the three types of subatomic particles, and what are their charges? -
✔✔Electrons-negative, protons-positive, and neutrons-neutral.
✔✔What is energy of motion called? - ✔✔Kinetic energy.
✔✔How is invisible light changed to visible light in a fluorescent light? - ✔✔Invisible light
photons (ultraviolet) bombard the phosphor atom in the light tube. The phosphor atoms
emit visible light photons.
✔✔What determines the valence of an atom? - ✔✔The number of electrons in the outer
shell.
✔✔What is an ion? - ✔✔An atom with more or less than its normal number of electrons.
✔✔Name the six methods of producing a voltage. - ✔✔Friction, pressure, heat, light,
chemical action, and magnetism.
✔✔ What are the two main factors that affect the velocity of sound in seawater? -
✔✔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? - ✔✔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? - ✔✔Active sonobuoys
✔✔Sonobuoys equipped with an EFS system have what capability? - ✔✔The capability
of selecting channel, life and depth settings
✔✔What information can a DIFAR sonobuoy provide that a LOFAR sonobuoy cannot? -
✔✔Submarine bearing.
✔✔Which of the following sonobuoys provides water temperature data? - ✔✔BT
sonobuoys
✔✔The OTPI system provides what information to the USW pilot? - ✔✔Sonobuoy
bearing information with respect to aircraft heading.
