A.the other services are run off a reducing station with a pressure gage
B.a separate fire pump is available for use on the fire main
C.all other services are operated by a manifold near the pump
D.All of the above
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A.boathook
B.fishing kit
C.lifeline or grab rail
D.sea painter
A.cutting off the supply of oxygen
B.removing the fuel
C.cooling below the ignition temperature
D.spraying with water
A.on line to the fire main
B.kept available for use on the fire main at all times
C.capable of being connected to the fire main
D.rated at or above 125 psi
A.persons in the space wear gas masks
B.persons in the space wear damp cloths over their mouths and nostrils
C.ventilation system is secured and all persons leave the space
D.ventilation system is kept operating
A.shape
B.shallow draft
C.large sail area
D.All of the above
最新試題
A person may operate an air compressor in which of the following areas on board a tank barge?（）
Inflatable liferafts are less maneuverable than lifeboats due to their（）.
Any vessel in need of carrying out deck washing must be（）by the department concerned beforehand.
A negative metacentric height（）.
A person has fallen overboard and is being picked up with a lifeboat. If the person appears in danger of drowning，the lifeboat should make（）.
For a ship not on an international voyage，an approved substitute for an impulse projected rocket-type line throwing appliance is a（）.
A racetrack turn would be better than a Williamson turn in recovering a man overboard if（）.
On a ship，a fire pump may be used for other purposes if（）.
In heavy seas the helmsman should steer the motor lifeboat（）.
If the coxswain of your lifeboat gives the command HOLD WATER you should（）.