What temperature should the boiler water be filled to during a hydrostatic test?

Study for the Massachusetts 3rd Class Engineer Exam. Access flashcards and multiple choice questions with hints and explanations. Prepare for success on your exam!

During a hydrostatic test of a boiler, the water temperature plays a critical role in ensuring accurate results and maintaining safety standards. The recommended temperature range for filling the boiler is typically set to prevent the condensation of steam and to ensure that the water does not introduce thermal shock to the metal components of the boiler.

In the correct choice, the specified temperature range of a minimum of 70 degrees and a maximum of 120 degrees Fahrenheit is ideal because it allows the water to remain in a liquid state while effectively expanding and contracting with heating and cooling cycles. Additionally, this temperature range helps to avoid the problems associated with cold water, such as incorrect readings of pressure and potential damage to the boiler from thermal stress.

When the water is kept within this range, it also helps to accurately simulate operating conditions without risking overheating or damage to the equipment. Therefore, maintaining water within this temperature range during a hydrostatic test maximizes safety and testing accuracy.

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