Minnesota Boiler License Practice Exam

What device would only be found on a steam boiler?

1. Pressure gauge, gauge glass, blow off valve

2. Steam gauge, tricocks, pressuretrols

3. Expansion tank, safety valve, temperature gauge

4. Water feeder, air eliminator, overflow valve

The correct answer is: Steam gauge, tricocks, pressuretrols

The presence of a steam gauge, tricocks, and pressuretrols specifically indicates equipment designated for steam boilers. A steam gauge is crucial for measuring the steam pressure within the boiler system, which is essential for monitoring operational performance and ensuring safety. Tricocks, or tri-cock fittings, are used in steam boilers to check the water level, serve as a mechanism to verify that sufficient water is present, and they provide a means to assess the state of the boiler water in different ways. Pressuretrols act as a safety device in steam systems; they automatically shut off the burner or the boiler in case the steam pressure exceeds a set limit, playing a vital role in preventing dangerous conditions resulting from excessive pressure. In contrast, the other options either include components that can be found in both steam and hot water systems or are more associated with hot water heating. For example, pressure gauges and blow-off valves can be utilized in both types of boilers, while expansion tanks and temperature gauges are primarily designed for hot water systems. Understanding the specific equipment used in steam boilers is essential for safe operations and effective boiler management.