單項選擇題The MOST important element in administering CPR is（）.

A.having the proper equipment for the process
B.starting the treatment quickly
C.administering of oxygen
D.treating for traumatic shock


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1.單項選擇題The most effective first aid treatment for chemical burns is to immediately（）.

A.apply ointment to the burned area
B.flood the affected area with water
C.wrap the burn with sterile dressing
D.apply an ice pack to the burned area

2.單項選擇題The minimum concentration of a vapor in air which can form an explosive mixture is called the（）.

A.auto-ignition point
B.flash point
C.lower explosive limit (LEL)
D.threshold limit value (TLV)

3.單項選擇題The minimum amount of lifesaving equipment required aboard an 85-foot uninspected towing vessel consists of（）.

A.one approved flotation cushion for each person on board
B.one approved life preserver for each person on board and one life ring
C.one approved inflatable vest for each person on board
D.lifeboat capacity equal to 1 1/2 times the number of persons on board

4.單項選擇題The MINIMUM acceptable size for a towing bridle would be that size in which the safe working load (SWL) of each leg of the bridle is equal to（）.

A.one-half the SWL of the main towing hawser
B.three-fourths the SWL of the main towing hawser
C.that of the main towing hawser
D.twice that of the main towing hawser

5.單項選擇題The maximum speed of lowering for a lifeboat on gravity davits is controlled by the（）.

A.limit switches
B.emergency disconnect switch
C.governor brake
D.position of the counterweight on the brake handle