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Top-70 Questions and answers for boiler operators viva exam.

Viva questions and answers for Boiler operators 1.What are the various types of valves used in Boilers? Globe valve, Gate valve, Butterfly Valve, Diaphragm valve, needle valve, solenoid valve, control…

boilerandturinehub@gmail.com May 9, 2026

Turbine performance

Top-36 Thumb rules for steam Turbine

1-Lube oil Pump capacity (M3/Hr) of steam turbo generator = 2 X Turbine capacity in MW For example: 20 MW turbine needs lube oil pump of capacity = 2 X…

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Uncategorized

Heat loss due to dry flue gas in Boilers-Online calculator

What do you mean by dry flue gas loss in Boilers? Dry flue gas heat loss refers to the energy carried away by exhaust gases (excluding moisture content) leaving the…

boilerandturinehub@gmail.com April 19, 2026

Turbine calculation

Steam Condenser Efficiency – Online Calculator

Steam surface condensers are critical components in thermal power plants, especially in Rankine cycle systems that dominate global electricity generation. Their primary function is to condense exhaust steam from a turbine…

boilerandturinehub@gmail.com April 17, 2026

Boiler calculations

Fuel GCV & NCV Online Calculator

Fuel GCV and NCV online calculators Gross Calorific Value (GCV), GCV some times also called Higher Heating Value (HHV). GCV is the total heat released when a fuel is completely burned,…

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Boiler calculations

Online Calculator for Heat Loss Due to Moisture in Fuel

Moisture in fuel refers to the water content present in the fuel before combustion. It is typically categorized into: Inherent Moisture – Naturally present within the fuel structure (e.g., coal,…

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Boiler calculations

Online Calculator for Theoretical Air and Excess Air in Combustion

What is Theoretical air? Theoretical air, also known as stoichiometric air, is the minimum quantity of air required for complete combustion of a given fuel. At this condition, all the fuel…

boilerandturinehub@gmail.com April 12, 2026

Uncategorized

50+ Thumb rules for energy conservation in Thermal power plants

Specific heat of oil varies between 0.22 kcal/kg to 0.28 kcal/kg. Loss of even one drop of oil at every second can cost over 4000 litres a year. Centrifugal pumps…

boilerandturinehub@gmail.com April 11, 2026

How to calculate the flash steam from condensate?

Boiler operation and performance

Flash steam generation online calculator

How flash steam is generated? Flash steam is produced when condensate at a high pressure is released to a lower pressure , it can be used for low pressure heating.…

boilerandturinehub@gmail.com April 10, 2026

Boiler operation and performance

Major emergency operation conditions in Power plant

What are the emergencies in Boiler operation? Major emergencies in Boiler Operation. Pressure parts failure Tubes leakage High furnace draft Low furnace draft High drum level Low drum level ID…

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