1.A fuel oil spill isn't likely to be ignited by a random spark or cigarette butt because fuel oil doesn't ignite in the liquid state. Name two conditions that would be exceptions to this statement.

Answer: If the oil is heated to its ignition point or is contaminated by a low-flash-point product such as gasoline, it can give of ignitable vapors.

2. Natural gas is explosive between ___?__ and __?__ percent. Fill in the blanks.

Answer: 4 Percent and 14 percent

3. You are trying to drain water from a flooded cellar and decide to open the cleanout plug of the waste pipe. This seems to be working fine. What precaution should you take to prevent the cleanout plug from clogging with debris?

Answer: Place a screen over the hole. A metal or plastic milk case works well for this purpose. You may have to weight a plastic case to keep it from floating away.

4. You have just operated at a car fire and you had to force the trunk open to check it for extension. What safety precaution should you take before taking up?

Answer: Disable the trunk lock by bending the striker plate. This will prevent a child from crawling into the trunk and becoming trapped as the trunk locks.

5. You have been called to a kitchen fire in a multiple dwelling. The dispatcher reports multiple calls. When you arrive, the public hall is full of smoke and you gain entry and quickly control the situation. Before you take up, you must check each apartment that called the dispatcher. Why?

Answer: One of the calls may not have been prompted by the kitchen fire you are operating at. The call may have been for an entirely different incident which happens to have occurred at the same time as the kitchen fire.