Types of gauge glass Types of valves Types of bearings Types of pumps Types of couplings Types of impellers Mountings and accessories What is economiser What is deareator

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The interview question covers various topics related to boiler operation including types of gauge glass, valves, bearings, pumps, couplings, impellers, mountings and accessories, economiser, and deareator.

Types of gauge glass include reflex, transparent, and tubular
Types of valves include gate, globe, check, and safety valves
Types of bearings include ball, roller, and sleeve bearings
Types of pumps include centrifugal, reciprocating, and rotary pumps
Types of couplings include rigid, flexible, and fluid couplings
Types of impellers include closed, open, and semi-open impellers
Mountings and accessories include safety valves, pressure gauges, water level indicators, and blowdown valves
Economiser is a heat exchanger that recovers waste heat from flue gases to preheat the feedwater
Deareator is a device that removes dissolved gases from feedwater to prevent corrosion and improve boiler efficiency

Types of gauge glass Types of valves Types of bearings Types of pumps Types of couplings Types of impellers Mountings and accessories What is economiser What is deareator

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