單項選擇題

How do you operate a portable C0₂ fire extinguisher?（）.

A.Point the horn down
B.Turn cylinder upside-down
C.Break the rupture disc
D.Pull pin, squeeze grip

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單項選擇題

How many dry-power extinguishers has your ship exactly been（）.

A.produced
B.provided with
C.supplied by
D.met with

單項選擇題

How should you signal the crane operator to dog everthing?（）.

A.Place both fists in front of the body with the thumbs pointing outward each other
B.Clasp hands in front of your body
C.Extend arm with the palm down and and hold this position rigidly
D.Extend arm with the thumb pointing up, and flex the finger s in and out

How do you operate a portable C02 fire extinguisher?（）.

你可能感興趣的試題

How many dry-power extinguishers has your ship exactly been（）.

How should you signal the crane operator to dog everthing?（）.

How do you operate a portable C0₂ fire extinguisher?（）.