Which extinguishing agent is NOT recommended in the Chemical Data Guide for use on a cyclohexane fire?（）
Which of the following statements is true concerning carbon dioxide when used as a fire extinguishing agent?（）
A definite advantage of using water as a fire extinguishing agent is its characteristic of（）.
On a bulk chemical carrier，water should NOT be used as an extinguishing agent to fight a fire if the water may come into contact with the chemical called（）.
Water is a very effective fire extinguishing agent because it（）
Removing which will extinguish a fire?（）.
Dry chemical fire extinguishers are effective on which type(s) of fire?（）
0ne of the limitations of foam as an extinguishing agent is that foam（）.
Carbon dioxide as a fire fighting agent has which advantage over other agents? （）
One of the limitations of foam as an extinguishing agent is that foam（）.
Which of the listed extinguishing agents is NOT suitable for fighting a liquid paint fire?（）
（），as the chemical extinguisher agent，should be used for an electric fire.
Which characteristic is an advantage of Halon as a fire extinguishing medium?（）
Which portable fire extinguisher is normally recharged in a shore facility?（）
An extinguishing agent which effectively cools，dilutes combustible vapors，removes oxygen，and provides a heat and smoke screen is（）.
Which is a disadvantage of Halon as a fire extinguishing medium?（）
Carbon dioxide as a fire fighting agent has which advantage over other agents?（）.
What is NOT a characteristic of carbon dioxide fire-extinguishing agents?（）
Which of the listed fire extinguishers cannot be easily recharged aboard ship?（）
For which of the listed classes of fire combinations would carbon dioxide be most suitable as the extinguishing agent （）.
Which of these is a suspect user agent？（）
As an extinguishing agent，foam（）.
129．One of the limitations of foam as an extinguishing agent is that foam ______.
