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13 Cards in this Set
- Front
- Back
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What should you review prior to a noise inspection dive?
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Pevious noise problem history and last diver's inspection report with submarine personnel.
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When discrepencies are found during an inspection dive how should it be documented?
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Still photography and u/w video system when available
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What does a sonar dome inspection consist of?
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-Surface (Structual failures with rubber boot, fiberglass, fairing strip, or other sonar dome components
-Marine Fouling (MFR) and paint deterioration (PDR) -Location, size and depth of cuts, gouges, scrapes, dents or other surface roughness discrepencies. |
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Who must a completed sonar dome form be delivered to?
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-Submarine inspected
-Comander Naval Surface Warfare Center -Commander, Submarine maintenance engineering planning and procurement activity |
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What is ussually responsible for a noise problem when a ballast tank area is suspected of producing noise?
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ballast tank grates
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What tool should you use to stimulate underwater flow conditions after inspecting each bolt on a grate?
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Use a pry bar
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What are you looking for when you are doing a noise inspection on the torpedo tube?
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-Clear of obstruction
-unform gap around the seating surface 1/4" - 1/2". -doors are flush with the adjacent hull |
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What is the allowable measurement for a housed SPM with the adjacent hull?
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1/8" - 1/4"
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What is the allowable gap between the fairing plate and the adjacent hull plating?
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About 1/4"
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What are you inspecting for after you remove the top rope guard?
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torpedo guidance wire, SSXBT wire, floating antenna wire, or any line or rope that may be wrapped around the shaft
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What must be done to all screws or bolts after the rope guard has been reinstalled?
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Screws and bolts should be flush and staked a minimum of 2 places opposite of each other.
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While inspecting the propeller where should the inspection begin?
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Starting with No. 1 inspect each blade tip, leading edge, and trailing edge for apparent damage.
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What should be considered when divers are requested to perform an u/w inspection on a submarine?
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1. Hydrophone location and where the noise problem had the highest level
2. Description of the noise (flow related noise, ratttle or banging, or propulsion-related) 3. Information about the ships speed depth and equipment in use when the noise was first detected |
