單項選擇題According to the Chemical Data Guide，what does ethyl chloride produce when ignited?（）

A.Toxic fumes of oxides of nitrogen
B.Toxic fumes of lead
C.Poisonous phosgene gas
D.Poisonous chlorine gas


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1.單項選擇題A victim is coughing and wheezing from a partialobstruction of the airway. An observer should （）.

A.perform the Heimlich maneuver
B.immediately start CPR
C.give back blows and something to drink
D.allow the person to continue coughing and dislodge the obstruction on his own

2.單項選擇題A victim has suffered a second-degree burn to a small area of the lower arm. What is the proper treatment for this injury?（）

A.Immerse the arm in cold water for 1 to 2 hours，apply burn ointment，and bandage
B.Open any blisters with a sterile needle，apply burn ointment and bandage
C.Apply burn ointment，remove any foreign material and insure that nothing is in contact with the burn
D.Immerse the arm in cold water for 1 to 2 hours，open any blister and apply burn ointment

3.單項選擇題A shipmate suffers a heart attack and stops breathing. You must（）.

A.administer oxygen
B.immediately check his pulse and start CPR
C.make the victim comfortable in a bunk
D.immediately give a stimulant，by force if necesssary

4.單項選擇題A shipmate chokes suddenly，cannot speak，and starts to turn blue. You should（）.

A.perform the Heimlich maneuver
B.make the victim lie down with the feet elevated to get blood to the brain
C.immediately administer CPR
D.do nothing until the victim becomes unconscious

5.單項選擇題A seaman is entitled by law to a release from Foreign Articles when（）.

A.intoxicated
B.the vessel is overloaded
C.there is a change of home port
D.there is a change of Master