Which of the listed devices is used to measure pressure and convert it to an electrical signal?()
A、Transducer
B、Reducer
C、Transformer
D、Rectifier
Which of the listed devices is used to measure pressure and convert it to an electrical signal?()
A、Transducer
B、Reducer
C、Transformer
D、Rectifier
Emergency generator is installed on board mainly to ()
A、connect to the busbar when the load increasing
B、supply power specially to charging panel
C、be put into operation during the ship arriving at or leaving port
D、ensure the power supply to critical equipment after the main switchboard out of power
The pressure range between the system cut in and cut out pressures in a refrigeration unit is known as()
A、opposing operational drag
B、pressure distribution
C、differential
D、system purge
The () returns the pump operating rod to mid position as soon as the helmsman stops turning the wheel.
A、hunting gear
B、cut-off level
C、servo-motor
D、swivel block
If you must make an electricity connection in a poorly accessible spot, solder it and seal it against ()
A、metal
B、wood
C、water
D、plastic
While loading bulk oil, you notice oil on the water near the bargeWhich of the following actions should you carry out FIRST?()
A、Search the vessel for leaks
B、Notify terminal superintendent
C、Stop loading
D、Notify the Coast Guard