單項選擇題For which of the listed classes of fire combinations would carbon dioxide be most suitable as the extinguishing agent （）.

A.Class "A" and class "B"
B.Class "B" and class "C"
C.Class "A" and class " C"
D.Class "C", class "D", and class "E"


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1.單項選擇題Most lifeboats are equipped with （）.

A.unbalanced rudders
B.balanced rudders
C.contraguide rudders
D.straight rudders

2.單項選擇題While reading the station bill, you find "three (3) short blasts on the whistle and three (3) short tings on the general alarm bells," this signal is for （）.

A.abandon ship
B.dismissal from fire and emergency stations
C.fire and emergency
D.man overboard

3.單項選擇題Hydrocarbon vapors are usually detected by the use of the （）.

A.flame safety lamp
B.combustible gas indicator
C.gasometer
D.oxygen indicator

4.單項選擇題A fire involving trash and paper waste would be classified as a （）.

A.class A
B.class B
C.class C
D.class D

5.單項選擇題A fire in a pile of dunnage would be classified as a （）.

A.class A
B.class B
C.class C
D.class D