Get Steamy with the Class 5 Boiler Exam 2025 – Ignite Your Career Potential!

Question: 1 / 400

What can sudden temperature changes in a boiler cause?

Increased efficiency

Thermal shock and material cracking

Sudden temperature changes in a boiler can lead to thermal shock and material cracking due to the rapid expansion and contraction of metal components. When parts of a boiler experience a quick difference in temperature, the material may not react uniformly. This can create stress concentrations that exceed the material's strength, resulting in cracks or even catastrophic failure of the component. The integrity of the boiler's structure relies on maintaining a controlled temperature range to avoid these issues.

In contrast, the other options relate to benefits or improvements that are not associated with sudden temperature changes. Increased efficiency and decreased fuel consumption typically result from optimal and steady operating conditions rather than abrupt fluctuations. Similarly, improved safety is achieved through consistent management of temperature and pressure in a boiler, not by allowing sudden changes that could compromise the system's integrity.

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Decreased fuel consumption

Improved safety

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