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15 Cards in this Set
- Front
- Back
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Operation of diesel engines without corrosion inhibitors in the jacket water will lead to....
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-corrosion of watersides
-cavitation of cylinder liners and jacket water pump impeller -formation of sludge |
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The use of water containing more than____ conductivity or more than _____ can result in accelerated scaling and corrosion of jacket water cooling system internals.
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150 umho/cm
40 ppm |
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Authorized Coolants
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Nalcool 2000
NALFLEET 9-111 Paxcool DEAC (Catcool) Glysacorr G93-94 |
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After filling or treating engine with coolant, the engine shall be operated and sampled within...
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24 hrs
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After adding coolant, the cooling system shall be recirculated as soon as possible to prevent.... |
corrosion or pockets of concentrated chemicals from sitting |
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PPE when handling coolant
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face shield, rubber gloves, and apron
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Cool sample to _____ before testing
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100°F
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Two tests for coolant
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Conductivity test
Chloride test |
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Monthly jacket water logs shall be retained for....
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1 year
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Jacket water logs shall be prepared in....
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-ink
-line through and initial if error is made |
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Ships that have two or more engines with intermingled jacket water systems shall...
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keep one log for each system
not for each engine |
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How long/hot to circulate detergent when cleaning jacket water system?
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30 minutes @ 145-155°F
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What is used to remove scale or corrosion from cooling system?
How long/hot to flush? |
-Diammonium Citrate
-Clean for 6 hour at 160°F, recirculating every hour for 15 minutes |
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How long to wait for color to develop on alkalinity test strips?
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15 seconds
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Antifreeze coolant shall be changed out every....
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2 years
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