BPME Block 7- Technology for the
Warfighter: Sonar Exam UPDATED
QUESTIONS AND CORRECT ANSWERS
Sonar is a device that processes ______ energy. - CORRECT ANSWER acoustics
Hull-mounted sonar has a blind spot aft of the ship called the __________. - CORRECT
ANSWER baffles
__________ cause(s) sound energy to bend from a straight path and can mask an undersea
target. - CORRECT ANSWER thermoclines
__________ sonar is silent and avoids alerting an adversary. - CORRECT
ANSWER passive
Passive sonar uses ___________ to locate targets. - CORRECT
ANSWER triangulation
A __________ receives reflected acoustic energy or other forms of undersea noise in a sonar
system. - CORRECT ANSWER hydrophone
___________ sonar pings as it searches for undersea targets. - CORRECT
ANSWER active
__________ sonar is silent and avoids alerting an adversary. - CORRECT
ANSWER passive
Acoustic energy travels at approximately ______________ meters per second through sea
water. - CORRECT ANSWER 1,530
Warfighter: Sonar Exam UPDATED
QUESTIONS AND CORRECT ANSWERS
Sonar is a device that processes ______ energy. - CORRECT ANSWER acoustics
Hull-mounted sonar has a blind spot aft of the ship called the __________. - CORRECT
ANSWER baffles
__________ cause(s) sound energy to bend from a straight path and can mask an undersea
target. - CORRECT ANSWER thermoclines
__________ sonar is silent and avoids alerting an adversary. - CORRECT
ANSWER passive
Passive sonar uses ___________ to locate targets. - CORRECT
ANSWER triangulation
A __________ receives reflected acoustic energy or other forms of undersea noise in a sonar
system. - CORRECT ANSWER hydrophone
___________ sonar pings as it searches for undersea targets. - CORRECT
ANSWER active
__________ sonar is silent and avoids alerting an adversary. - CORRECT
ANSWER passive
Acoustic energy travels at approximately ______________ meters per second through sea
water. - CORRECT ANSWER 1,530
