Which metal, along with tin and lead, is used to make the fusible plug in boilers?

Mechanical Engineering Mcqs for PPSC, FPSC, NTS, and Pakistan government job tests. Select an option below, then read the explanation.

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Subject
Mechanical Engineering Mcqsmechanical-engineering-mcqs
Published
29 Jan 2019
Last updated
28 May 2026

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Explanation

The fusible plug in boilers is composed of a fusible alloy containing tin, lead, and bismuth. This combination ensures the plug melts at a specific temperature to provide a safety mechanism.

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