When allowing hot work operations to proceed, at least one fire extinguisher with a minimum 2-A:20-B:C rating should be located within 30 ft. of where the hot work is being conducted.

What are the five necessary conditions for a dust explosion to occur?

The maximum travel distance to a Class A extinguisher is ___ feet (m). 

A facility uses acetone in large mixing tanks to achieve the correct viscosity required by a customer. The acetone arrives in 55 gallon drums and is pumped using a hand-crank pump into the mixer vessels. The vessel is open topped and vapor freely volatilizes into the room. What is the required exhaust ventilation (to the nearest cubic foot per minute) to ensure that an explosive vapor concentration will not be accumulated during tank filling (assume that we require a safety factor of 5)?

Which of the following is a critically important factor regarding fire extinguisher location? 

Which drawing shows floor plans, elevation drawings, and the features of a proposed building’s layout and construction?

Which of the following is a structural component composed of smaller components in a triangular configuration?

What specific type of plan allows for the safe and orderly removal of people from a building in the event of a fire or other emergency?? 

Which of the following statements regarding flame detectors is MOST accurate? 

For aboveground tanks containing liquids classified as IA through IC, II, or IIIA, the distances between should be at least ___ the sum of their diameters.