TPC Schematic and Symbols Practice Test 2025 - Free TPC Schematic Questions and Study Guide

Question: 1 / 400

On a refrigeration schematic, the following symbol indicates a switch that opens on?

falling pressure

rising temperature

constant pressure

rising pressure

The symbol in question represents a switch that opens when there is rising pressure. In refrigeration systems, switches, such as pressure switches, are used to monitor and control various operational aspects. A switch that opens on rising pressure is designed to prevent the system from exceeding a certain pressure threshold, which is crucial for safety and efficiency.

When pressure increases beyond a set point, the switch will break the circuit, stopping the operation of the compressor or other components. This mechanism is essential to avoid overpressure situations that can lead to equipment failure or unsafe operating conditions.

Understanding this functionality is vital for anyone working with refrigeration systems, as it emphasizes the importance of pressure management and the role of such safety devices in maintaining system integrity and performance.

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