单项选择题
Each fire hydrant must have at least one spanner and at least one（）.
A.hose rack or reel
B.all purpose nozzle
C.foam applicator
D.pick axe
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单项选择题
Each fire hose coupling on a ship must have threads that meet the specifications of the（）.
A.American Petroleum Institute
B.National Standard Firehose Coupling
C.American Society of Mechanical Engineers
D.Underwriter's Laboratories，Inc -
单项选择题
During the required periodic abandon ship drill aboard a ship，each person not assigned duties in the muster list is（）.
A.instructed in the use of portable fire extinguishers
B.shown a video demonstrating lifeboat launching
C.instructed in the use of life jackets
D.not required to attend the boat drill -
单项选择题
During a training exercise a submarine indicating that a torpedo has been fired will send up smoke from a float. The smoke’s color will be（）.
A.black
B.red
C.orange
D.yellow
