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
您可能感興趣的試卷
你可能感興趣的試題
A.shape
B.shallow draft
C.large sail area
D.All of the above
A.Running into head seas
B.Running in the trough
C.Running with following seas
D.Anchored with your bow into the seas
A.brought to a position with the stern into the seas
B.allowed to take its own head
C.brought to lay in the trough
D.brought bow into the seas
A.into the seas
B.broadside to the seas
C.in the same direction as the seas
D.in a series of figure-eights
A.placed in a fixed bracket when being used
B.clamped to any position convenient for the coxswain to see it
C.permanently mounted on the lifeboat's centerline
D.mounted in the center of the boat to eliminate deviation
最新試題
Seasickness is caused by rolling or rocking motions which affect fluids in the().
A negative metacentric height().
A person with diabetes has received a minor leg injured. The symptoms of the onset of a diabetic coma include().
Multiple fire pumps may be used for other purposes provided that one pump is().
In heavy seas you decide to heave to. The lifeboat should be().
Large volumes of carbon dioxide are safe and effective for fighting fires in enclosed spaces,such as in a pumproom,provided that the().
Releasing oil from the sea anchor of a lifeboat may().
A person has suffered a laceration of the arm. Severe bleeding has been controlled by using a sterile dressing and direct pressure. What should you do next?()
A racetrack turn would be better than a Williamson turn in recovering a man overboard if().
A person may operate an air compressor in which of the following areas on board a tank barge?()