Navigation Lights And Batteries Flashcards
how do batteries produce electricity?
by chemically inducing a voltage
what are the two categories of batteries?
primary
secondary
what are the four characteristics of a primary battery?
not rechargeable
dry cells
small
disposable
what are the four characteristics of a secondary battery?
rechargeable
wet cells
variety of size
requires special charging equipment
what is the value of a full charged and a fully discharge battery?
2.1V fully charged
1.75V fully discharged
what causes a cell dying?
sludge accumulates at the bottom of the cell shorting the battery
when are navigation tested
an hour before sunset every day
when are lights turned off?
after sunrise
what lights are required on a submarine?
port red
starboard green
FWP white
AFT white
collision warning light amber
