Electric spark igniters are controlled by combustion safety control systems.

A(n) ___ is an absorption chiller system component that vaporizes the refrigerant and separates it from the absorbent.

Gas burners can only be high pressure gas burners.

The MAWP for low pressure steam boilers is 15 psi.

A low water condition is caused by an excessive amount of water in a boiler as indicated by the gauge glass.

With high-efficiency condensing boilers, the stack temperature may be as low as ___°F.

The ASME Boiler and Pressure Vessel Code allows ___ valve(s) to be placed between a boiler and a safety valve or between a safety valve and the point of discharge.

Return steam traps discharge condensate directly back to the boiler.

The internal mechanism of a low water fuel cutoff should be removed from the bowl at the recommended intervals to check and ___ the float ball.

The internal mechanism of a low water fuel cutoff should be removed from the bowl at the recommended intervals to check and ___ the float ball.