Construction Fire Protection and Prevention practice questions for the CHST exam

A site fuel truck is parked at a temporary fueling area to refill an excavator. The operator leaves the excavator idling to keep the cab heater running while the nozzle is in the tank. Which action does the standard require?

1. A.Allow idling only if a fire watch is posted within 75 feet
2. B.Allow idling if the nozzle is bonded to the equipment frame
3. C.Allow idling if a 20-B:C extinguisher is held by the operator
4. D.Shut off the excavator's motor for the entire fueling operation

During an inspection of a temporary diesel (Category 4 flammable liquid) storage tank on a job site, you note the following about the vent piping: it terminates outdoors above the fill pipe opening and above the normal snow level, its outlet has a return bend with a coarse screen, and it enters the tank through the top. A horizontal run of the vent pipe has sagged between two supports, creating a low spot. Which condition is a deficiency that must be corrected?

1. A.The vent terminating above the fill pipe opening, because the vent must end at the same height as the fill pipe
2. B.The return bend and coarse screen on the vent outlet, because vent outlets must remain open and unfitted
3. C.The vent entering the tank through the top, because vent pipes must enter the tank through the side
4. D.The sag in the horizontal run, because the pipe must drain toward the tank without sags or traps where liquid can collect