ABF test 3 Flashcards
Provides rapid and efficient means of communication betweek carious stations aboard ship. Voice activated
Sound Powered Purpose
connected by wires wires from a junction box on the breastplate
Earphones and MouthPiece
When you speak into the transmitter how far from your mouth
1/2 to 1 inch
Removing liquid from spaces within the ship. Into which has entered due to ballasting, damage to watertight integrity, or drainage from other spaces. Portable or permanently installed.
Eductor
A)Contains 3 valves
Main drainage valve
Ballasting valve
Stripping valve
Flood and drain manifolds.
Permits only one valve to be opened at a time
Sliding lock bar (Flood and drain manifold)
Permanently installed, discharged overboard
*Actuating water is supplied by the firemain 125PSI
Main drainage educator
Atmospheric pressure causes liquid being removed to flow into the eductor suction line. Flow directed overboard through an overboard discharge connection
portable eductors
Operations shall be accomplished in accordance with Engineering Operational sequencing system
EOSS
Used where a straight flow with a minimum restriction is desired. No throttle used
Gate valve purpose
Provides leverage
Hand wheel
Maintains fluid tight seal, short lengths of flexible material that are housed in stuffing box
packing
Turns with the hand wheel cause stem to move up or down. Internal thread mates with stem threads
Yoke sleeve
Raises or lowers the gate to open and close valves
Stem
Used to support stuffing box and the stem
Bonnet