1. In order to extinguish dumpster fires, firefighters must enter the dumpster and physically overhaul its contents. True or False?

Ans: False. Hydraulically overhaul them when possible. If necessary, push and shove contents with tool, but stay out of the dumpster.

2. A new carbon monoxide detector must ignore CO levels of __A__ ppm or less for at least __B__ days and ignore levels of __C__ ppm or less for at least an hour.

Ans: A = 30 ppm, B = 30 days, C = 70 ppm
This comes from the new UL 2034. See more information on this topic at my book update page.

4. The pressuretrol is a safety device found on oil burners. What does it do?

Ans: It measures high and low pressures and will turn the system on or off accordingly.

5. You are called to a home for an odor of gas and you notice that gas is discharging from the homes high pressure gas pipe vent pipe. What is the likely reason?

Ans: Regulator failure. When the regulator fails, high-pressure gas will be discharged through this vent.

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