单项选择题When administering artificial respiration to an adult, the breathing cycle should be repeated about ()

A.12 to 15 times per minute
B.18 to 20 times per minute
C.20 to 25 times per minute
D.as fast as possible


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1.单项选择题When administering artificial respiration, it is of the utmost important to ()

A.use the mouth-to-mouth method
B.clear airways
C.use rhythmic pressure method
D.know all approved methods

2.单项选择题Safety is dependent on orderliness and cleanlinessOrder may be maintained by ()

A.storing all items in an assigned place
B.storing all items in a common storage container except those ready-for-sea
C.tagging all items according to their age and then storing them together
D.disposing of worn-out items

3.单项选择题To safeguard the operator and other personnel working on or near a hoisting operation which of the following precautions should be observed?()

A.Keep a load on the hoist until all personnel are finished working
B.Set the load on a movable dolly when transportation may be needed
C.Have one man keep a hand on the load to steady it
D.Insure that the lifting gear capacity is not exceeded

4.单项选择题Which of the actions listed and instituted on your part will have the greatest lasting effect on the crew with respect to safety?()

A.Posting posters illustrating practices
B.Showing video tapes of actual accidents
C.Incorporating safety practices in daily routine
D.Publishing comprehensive safety rules

5.单项选择题Which of the listed conditions can be considered as the single greatest cause of accidents?()

A.Speed
B.Excessive knowledge or skill
C.Human error
D.Excitement

6.单项选择题Which of the following must be eliminated to prevent accidents?()

A.Unsafe actions
B.Orderliness
C.Frequent inspections
D.Good work habit

7.单项选择题Which of the following is not a recommended safe practice?()

A.Securing equipment against slipping or drifting
B.Operating machinery at its recommended speed
C.Repairing loose handles on tools before using
D.Using tools for purpose for which they are not designed

8.单项选择题When required to work where there may be explosive gases, you should use tools which are ()

A.approved by the Coast Guard
B.high carbon steel
C.fixed with a ferrous cover
D.nonsparking

9.单项选择题Prior to entering a cargo pump room, you should ensure that ().

A.the forced ventilating system is operating
B.the cargo pumps are secured
C.no monocarbon gases are present
D.the oily water separator is de-energized

10.单项选择题Personnel who are moving or handling material aboard ship should NOT follow which of the listed practices?()

A.signaling that all personnel are clear before lifting or lowering material
B.Examining material for sharp edges or protruding points before handling
C.Closing, tagging, or securing valves that permit entrance of steam, water, or air into a fitting or other equipment
D.Throwing materials from high places to the deck