单项选择题

As compared to carbon dioxide，dry chemical has which advantage?（）

A.Cleaner
B.Effective on metal fires
C.Greater range
D.More cooling effect

点击查看答案&解析

上一题目录下一题

相关考题

单项选择题

As a vessel changes course to starboard，the compass card in a magnetic compass（）.

A.remains aligned with compass north
B.also turns to starboard
C.first turns to starboard then counterclockwise to port
D.turns counterclockwise to port

单项选择题

As a rule，ships of most configurations，when drifting in calm water with negligible current，will lie（）.

A.bow to the wind
B.beam to the wind
C.stern to the wind
D.with the wind on the quarter

单项选择题

As a licensed Merchant Marine Officer you are expected to（）.

A.obtain a weather forecast before setting out from port
B.listen to weather forecasts on the radio while enroute
C.understand all broadcast weather warning information
D.All of the above