What is the function of fusible plug in the boiler?(a) Protect the fire tube(b) To trip on overload(c) To act as a junction switch(d) To maintain pressureThis question was addressed to me in an interview for internship.Enquiry is from Boiler Mounting Accessories in division Steam Generators & Accessories of Energy Engineering

What is the function of fusible plug in the boiler?(a) Protect the fir

1.	What is the function of fusible plug in the boiler?(a) Protect the fire tube(b) To trip on overload(c) To act as a junction switch(d) To maintain pressureThis question was addressed to me in an interview for internship.Enquiry is from Boiler Mounting Accessories in division Steam Generators & Accessories of Energy Engineering
Answer» The correct CHOICE is (a) Protect the fire tube For explanation: The function of the fusible PLUG is to protect the fire tube from burning due to excessive heating. This usually happens when the water level INSIDE the drum BECOMES too low and the shell and CROWN plate are directly exposed to steam space.

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