A fusible plug must be used primarily for safety purposes in which of the following types of boilers

Question

RRB Paper · Accepted Answer

1

Oil-fired boiler

2

3

4

A fusible plug must be used primarily for safety purposes in the Fire-tube boiler.

A fusible plug is a plug made of a metal that will melt at a selected temperature and will relieve a container of pressure.
Fusible plugs are used in fire tube boilers, compressed gas cylinders, and other pressure vessels.
They allow overpressures from fire or other causes of overheating to be vented.
A plug may consist entirely of the alloy that will melt or have a high-temperature metal core surrounded by the low-temperature alloy.