Question

What is the function of pressure gauge in the boiler?

(a) To indicate steam pressure

(b) To indicate water pressure

(c) To indicate Air pressure

(d) To indicate Flue gas pressure

The question was posed to me in a national level competition.

I want to ask this question from Boiler Mounting Accessories topic in portion Steam Generators & Accessories of Energy Engineering

Answer 1

Correct choice is (a) To indicate steam pressure

To explain I would say: The function of the pressure gauge is to indicate the steam pressure inside the boiler drum in bar or in Kgf in cm^2 or in KN/m^2 in gauge pressure. If the boiler is fitted with a superheater, one more pressure gauge fitted to the superheater header indicates the superheated steam pressure at any given instant.