TSSA Refrigeration Class 4A Certificate 2026 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 745

What is the purpose of handhole and manhole openings in boilers?

Are required on high pressure boilers only

Are not required on low pressure hot water boilers

Require a cast iron reinforcing ring

Permit inspection, cleaning and repairs

The purpose of handhole and manhole openings in boilers is to permit inspection, cleaning, and repairs. These openings provide access to the internal components of the boiler, allowing operators and maintenance personnel to visually inspect for corrosion, buildup of deposits, or any potential damage. Ensuring that a boiler operates efficiently and safely requires regular maintenance, and having these access points is crucial for facilitating necessary maintenance tasks.

Handholes are smaller openings that allow for limited access, often used for routine inspections, while manholes are larger openings that provide greater access for more extensive repairs or cleaning efforts. Both types of openings are essential for maintaining the overall health of the boiler system, ensuring safety, and optimizing performance.

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