A typical vacuum pump serving a condensate system is a ___-compartment condensate vessel, divided horizontally.

The main difference between how cooling systems operate compared to hot water heating systems is that cooling systems transport heat away from a building space to produce a cooling effect.

The most common LP gas is propane.

Approximately 212 lb of air are required to burn a pound of fuel.

A(n) ___ is a safety device that senses if the pilot light and/or main flame are lit.

During a hydrostatic test, pressure on the boiler is brought up to ___ times the MAWP.

In a low pressure gas system, gas pressure is reduced from supplier gas pressure to approximately 3 psi.

Cutting a boiler in on-line is the opening of the main steam stop valve to the main steam header to allow steam to flow to its point of use.

More pounds of silica gel than quicklime are required for the dry layup of a boiler.

The primary function of a pressure gauge is to de-energize a burner safety circuit and shut down the burner if the water level in the system drops below a safe operating level.