Shared Flashcard Set

Details

MK2 Servicewide
N/A
62
Other
Professional
10/21/2012

Additional Other Flashcards

 


 

Cards

Term
Two Types of Halogens
Definition
Bromine; Chlorine
Term
Water contamination occurs during:
Definition
Production, Handeling, Storage, Distribution
Term
Maximum Bromine Levels for Consumption
Definition
2.7 mg/l
Term
Free Available Chlorine (FAC); Total Bromine Residual (TBR)
Definition
Amount of chlorine or bromine remaining in water 30 min. after treatment.
Term
Proper Chlorine and Bromine Concentrations
Definition
Chlorine 1.0 Bromine .7 to establish .2 ppm
Term
Potable Water Quality Log
Definition
CG-5648
Term
Maximum PH of Potable Water
Definition
8.5
Term
Two Types of Brominators
Definition
Automatic Proportioning and Recirculating Brominators
Term
Automatic Proportioning Components
Definition
Bypass Header Assembly, Dual Feed Valve Assembly, Feeder Assembly
Term
Bypass Header Assembly
Definition
Flow Switch, Time totalizing meter, cartridge change indicator light, system operating light, fixed orifice, test tap, inlet and outlet flanges
Term
Dual Feed Valve Assembly
Definition
Two position ball valve that adjusts the feed rate
Term
Feeder Assembly
Definition
Bromine Cartridge Canister
Term
Maintain a record of potable water for how long
Definition
2 Years
Term
Most common Air Compressor Type
Definition
Recipricating (positive displacement)
Term
Pneumatic System: Receiver
Definition
Storage tank used when the demand for air exceeds capacity of the compressor
Term
Pneumatic System: Moisture Separator
Definition
Removes moisture that wasn't removed at the receiver
Term
Pneumatic System: In-Line Lubricator
Definition
Applies a vapor of oil to air before it reaches the end user.
Term
Pneumatic System: Pressure Regulator
Definition
Decreases the high unusable air into a lower usable air pressure
Term
Pneumatic System: Pressure Relief Valve
Definition
Safely releases excess pressure form the system.
Term
Pneumatic System: Pressure Reducing Station
Definition
Changes air pressure without changing air compressors (High to Low)
Term
Pneumatic System: Cross Connect Stations
Definition
From Ship's Service Air to Diesel Start Air and back.
Term
Pneumatic System: Diesel Air Start Motor
Definition
Coverts potential energy into mechanical energy
Term
Pneumatic System: Starting System Pressure
Definition
150 to 250 psi
Term
How many starts for a diesel start system
Definition
1 cold 9 hot
Term
Rate of air pressure rise when opening valve
Definition
Under 200 psi per second
Term
Maximum recommended temp. for an air compressor
Definition
104 Degrees F.
Term
Reverse Osmosis
Definition
Provide fresh water by filtering seater through a semipermeabel membrane under pressure
Term
What does an RO get rid of?
Definition
Bacteria, salts, sugars, proteins, dyes, and any constituents with a molecular weight greater than 150-250 Daltons
Term
Difference between RO and conventional filtration
Definition
Crossflow Operation, Particle Size and Osmotic Pressure
Term
Pure Water Side PSI
Definition
350-400 psi
Term
Seawater Side Pressure
Definition
700-1000 psi.
Term
RO: Duplex Strainer
Definition
First step in removing large peices of debris from seawater.
Term
RO: Cengrifugal Separator
Definition
Removes 98% of separable solids 200 mesh (74 MICRONS) and larger
Term
RO: Heater
Definition
Prevents freezing on freshwater side. Acivates under 35; secures above 38
Term
RO: Cartridge Filters
Definition
Filters the seawater to minimize membrane fouling
Term
RO: Activated Carbon Filter
Definition
Removes halogen from fresh water before used for cleaning
Term
RO: Backflow Preventer
Definition
Protects potable water agains backflow to the tanks
Term
RO: Feed Booster Pump
Definition
Supplies pressure if seawater pressure is not high enough
Term
RO: High-Pressure Pump
Definition
Increase seawater pressure to 700 to 1000 psi
Term
RO: Module System
Definition
Where the actual desalination occurs
Term
Maximimum Total Dissolved Solids (TDS)
Definition
500 ppm.
Term
How does OWS system operate?
Definition
Coalescing: The natural ability of two dissimilar liquids to seperate.
Term
Types of OWS
Definition
Pressurized and vacuum/gravity
Term
OWS: Prefilter
Definition
Removes small particles from the oil water mixture
Term
OWS: Standard Coalescer
Definition
Perforated fiberboard with mulitple layers of spun fiberglass in the core
Term
OWS: Combination Colescer
Definition
Used for both pre-filtering and coalescing simultaneously
Term
When is this placard required: DISCHARGE OF OIL PROHIBITED.
Definition
On a vessel longer than 26 feet; in a conspicuous place in each machinery space or bilge. Must be at least 5" by 8"
Term
What states that no person shall discharge oil into any body of water.
Definition
Title 46 CFR 162.050
Term
Max oil when within 12 NM of any coast
Definition
15 ppm
Term
Max oil when further that 12 NM from any coast
Definition
100 ppm.
Term
Who established principles for modern hydraulics
Definition
Blasé Pascal
Term
Pascal’s Law
Definition
Pressure applied to a confined fluid is transmitted undiminished in all directions and acts with equal force on equal areas and at right angles to them.
Term
Hydraulic Formula
Definition
Force
--------
area/pressure
Term
Cap End and Rod Area
Definition
Area=Diameter squared X .7854
Term
Net Area
Definition
Cap End Area - Rod Area
Term
Electronic Control and Monitoring System (ECM)
Definition
Controls functions, Monitors Operation, and Alerts of Casualties
Term
Outboard: Electrical System Subsystems
Definition
Starting, Charging, Ignition
Term
Outboard: Starting System Components
Definition
Ignition Switch, Solenoid, Starter Motor
Term
Outboards: Charging System
Definition
Converts mechanical energy to electrical energy for the ship's load.
Term
Outboards: Charging System Components
Definition
Battery, Altenator, Rectifier, Voltage Regulator
Term
Outboard: Alternator Types
Definition
Permanent Magnet and Variable-Field
Term
Outboards: Two Types of Ignition Systems
Definition
Capacitive Discharge and Transistorized Magneto
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