The Virtual Navy

Commander Naval Education and Training

STS

*Contact ID's fo all Sonar contacts start with what letter?
C
S
D
F
*The 688(I) uses dual waterfall displays to track sonar information.
True
False
*letter is placed above the contact line. Four trackers are available for each sonar array. What are they for Spherical Conatcts?
A, B, C, and D
E, F, G, and H:
I, J, K, and L
M,N,O, and P
*In the Narrowband: Straight lines indicate a consistent signal. Curved or wavy vertical lines represent distortions in the signal. Faint lines indicate a weak signal.
True
False
*Ownship’s speed can affect your ability to detect contacts in Broadband Search.
True
False
*The towed array must be deployed before any towed array signals can be detected.
True
False
*What Typically Has three or four blades; noisy; often maintains predictable course.
Aircraft Carriers
Enemy Subs
Merchant Vessels/ Tankers
Fishing Vessels
*To stop the transmission of continuous pings, click again on the North button.
True
False
*What is the name of the following description? an area of thin ice or open water
polynya
Ice Cap
Thin Ice
Hole
*Is a distinct thermal layer always present?
Yes
NO
I don't know