mm strand Flashcards
test 1 (42 cards)
what is the purpose of the steering gear
convert electrical signal from bridge,the mechanical signal from the trick to position and hold ships rudder at selected rudder angle under all low conditions
provides high pressure hydraulic fluid to ram cylinder to move ram
main pump
provides fluid for the replenishing and servo circuit
purpose of the auxiliary pump
electro-hydraulic
steering gear is classified as what kind of hydraulic system
electric motor
what supplies rotary power to steering gear hydraulic pumps?
ram and crosshead assembly
what uses hydraulic fluid power created by the main pump to move the rudder?
auto change over transfer switch
which component shifts control from the online HPU to the standby HPU if the online unit fails?
ordered, actual
differential control unit compares_______ rudder angle with the _______ rudder angle and places the main pump on/off stroke
control rod
connecting link between the differential control unit and the main hydraulic pump is called
transfer and blocking valve
what maintains a hydraulic lock on the ram once the desired rudder angle has been reached
follow up assembly
what provides mechanical feedback from the rudder to the differential control unit
fluid, mechanical
the ram converts_______ energy to ______ energy
linear, rotary
the crosshead converts ______ movement of the ram to _______ movement of the rudder
accumulator
the component that meets peak demand that may exceed the auxiliary pump capacity is called?
True
the trick wheel locally controls the steering gear manually
1JV circuit
under normal conditions which sound powered telephone circuit is used for communication between the bridge and steering?
orange
what color is hydraulic system piping
indicates the position of the rudder
what is the purpose of the rudder angle indicator?
maser/actual local remote
3 types of rudder angle indicators are?
convert electrical signal from bridge,the mechanical signal from the trick to position and hold ships rudder at selected rudder angle under all low conditions
what is the purpose of the steering gear
main pump
provides high pressure hydraulic fluid to ram cylinder to move ram
purpose of the auxiliary pump
provides fluid for the replenishing and servo circuit
steering gear is classified as what kind of hydraulic system
electro-hydraulic
what supplies rotary power to steering gear hydraulic pumps?
electric motor
