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According to the ASME Code, a try lever test on a safety valve should be performed every ___ the boiler is in operation and after any period of inactivity.

There are many designs of heat exchangers, but the common element is a relatively thin barrier separating the cooling or heating fluid from the process fluid.

Dry layup is recommended for boilers that will be out of service for an extended period.

Protective ___ protect workers by resisting penetration and absorbing the blow of impact.

A ___ system provides the air necessary for combustion.

The method for controlling draft is determined by the boiler equipment.

The two common types of cooling systems are direct-expansion systems and indirect expansion systems.

An operating pressure control starts and shuts down a burner based on steam pressure.

___ fire is burning the maximum amount of fuel in a given unit of time.

___ fire is burning the maximum amount of fuel in a given unit of time.