When is the connection concentrator enabled?()
第1题:
_____, water turns into ice.
A、When freezing
B、When frozen
C、When it has been frozen
D、When freezes to it
第2题:
The officer in charge of the engineering watch shall notify the chief engineer without delay ____.
A.in any emergency or if in any doubt as to what decision or measures to take
B.in the event of any impending action in machinery spaces that may cause reduction in ship's speed
C.when isolating and bypassing machinery to be worked on
D.co-operating with any engineer in charge of maintenance work
第3题:
A portable dry chemical fire extinguisher discharges by ______.
A.gravity when the extinguisher is turned upside down
B.pressure from a small CO2 cartridge on the extinguisher
C.air pressure from the hand pump attached to the extinguisher
D.pressure from the reaction when water is mixed with the chemical
第4题:
When does the warranty of the XIV Storage System start? ()
第5题:
look for a CO2 extinguisher
use a soda acid extinguisher
shut off the fuel supply
smother the fire with rags
第6题:
open the CO2 inflation valve
open the raft container
ensure that the operating cord is secured to the vessel
inflate the raft on the vessel,then lower it over the side
第7题:
contains 15 pounds of CO2
weighs 15 pounds when full of CO2
has 15 pounds of pressure at the nozzle
weighs 15 pounds when empty
第8题:
When attacking the fire directly
When using a steam smothering system
When using the fixed CO2 system
All of the above
第9题:
It is inflated by a small CO2 bottle that is automatically tripped when the front zipper is at the top of the zipper track
It is inflated by a small CO2 bottle that is manually tripped
It is inflated by blowing through an inflation tube
It inflates by seawater bleeding into the inflation bladder and reacting with a chemical
第10题:
gravity when the extinguisher is turned upside down
pressure from a small CO2 cartridge on the extinguisher
air pressure from the hand pump attached to the extinguisher
pressure from the reaction when water is mixed with the chemical
第11题:
Engine room ventilation should be started
Main engines should be secured
The fire pump should be started
The fixed CO2 system should be activated
第12题:
Check the tag to see when the extinguisher was last charged
Release a small amount of CO2; if the CO2 discharges,the extinguisher is acceptable
Weigh the extinguisher and compare the weight against that stamped on the valve
Recharge the extinguisher at least once each year
第13题:
A.When-Mouse-Up
B.When-Mouse-Move
C.When-Mouse-Down
D.When-Mouse-Click
E.When-Mouse-Leave
第14题:
A. when the order is placed
B. when the product is shipped
C. when the product is delivered
D. when the product is installed
第15题:
煤气CO的利用率ηco=()。
第16题:
leave the access door partially open
enter from the lowest level
enter from the highest level
attempt to operate machinery
第17题:
Open the liferaft casing
Turn the valve on the CO2 cylinder to start inflation
Make sure the operating cord is secured to the vessel before throwing it over the side
After inflation,detach operating cord from liferaft
第18题:
there are fifteen pounds of CO2 in the container
the container,when full,weighs fifteen pounds
the pressure at the discharge nozzle is l5 psi
the empty container weighs fifteen pounds
第19题:
the discharge valve is open
the control box glass is broken
pressure from the control cylinders is detected
the control cylinders have been completely discharged
第20题:
The fire pump should be started
The boiler rims should be secured
The fixed CO2 system should be initiated into action
The engine room ventilation should be secured
第21题:
It is inflated by a small CO2 bottle that is automatically tripped when the front zipper is at the top of the zipper track
It is inflated by a small CO2 bottle that is manually tripped
It is inflated by blowing through an inflation tube
It inflates by sea water bleeding into the flotation bladder and reacting with a chemical therein
第22题:
stop ventilation to the area
stop the vessel
secure electricity to the circuit
apply CO2 to the fire
第23题:
Avoid channels with high AP co-channel interference.
Use channels with high AP co-channel interference to avoid channel roams.
Set the 2.4-GHz data rate of 5.5 Mb/s to required.
Use 5-GHz channels when possible.
Use 2.4-GHz channels when possible.
第24题:
it is impractical to locate them outside
there is also a control valve outside
the CO2 cylinders are also in the space
an automatic heat-sensing trip is installed