Ultratech India Interview Questions and Answers

Boiler trips can occur due to various running conditions such as low water level, high pressure, flame failure, etc.

• Low water level can cause the boiler to trip as it can lead to overheating and damage to the boiler.

• High pressure can also cause the boiler to trip as it can lead to safety concerns.

• Flame failure can cause the boiler to trip as it indicates a problem with the fuel supply or ignition system.

• Other running conditions such as faulty sensors, clogged filters, or malf...read more

There are various types of boilers such as fire tube, water tube, electric, and biomass boilers.

• Fire tube boilers have hot gases flowing inside the tubes and water surrounds them.

• Water tube boilers have water flowing inside the tubes and hot gases surround them.

• Electric boilers use electricity to heat water and produce steam.

• Biomass boilers use organic materials like wood chips or pellets to generate heat.

A boiler is a closed vessel in which water or other fluid is heated to generate steam or hot water.

• A boiler is used to generate steam or hot water for various applications.

• It works by heating water or other fluid inside a closed vessel.

• The heated fluid then circulates through pipes or tubes to transfer heat to the surrounding environment.

• Boilers are commonly used in power plants, industrial processes, and heating systems.

• Examples of boilers include steam boilers, hot water bo...read more

Annual passing process of boiler involves inspection, testing and certification of the boiler.

• The boiler is inspected for any damages or defects.

• The safety valves are tested to ensure they are functioning properly.

• The boiler is cleaned and any deposits or scale buildup is removed.

• The efficiency of the boiler is tested.

• The boiler is certified by a licensed inspector.

• The process is repeated annually to ensure the boiler is safe and efficient.

OPH stands for Operating Hours Per Year. It is a measure of the total number of hours a boiler operates in a year.

• OPH is an important metric used to determine the efficiency of a boiler.

• It is calculated by multiplying the number of hours the boiler operates in a day by the number of days it operates in a year.

• For example, if a boiler operates for 8 hours a day and 300 days a year, its OPH would be 2,400.

• OPH is used to determine the maintenance schedule for a boiler and to est...read more

Economizer is a heat exchanger that recovers waste heat from flue gases to preheat the feedwater.

• Economizer is installed in the boiler exhaust gas flue to recover heat energy from the flue gas.

• It preheats the feedwater before it enters the boiler.

• Economizer increases the boiler efficiency and reduces fuel consumption.

• It can be of two types: non-condensing and condensing economizer.

• Non-condensing economizer recovers sensible heat while condensing economizer recovers both sensi...read more

The calorific value of F.O oil is the amount of heat energy released when it is burned.

• F.O oil stands for Furnace Oil.

• The calorific value of F.O oil varies depending on its grade and composition.

• It is typically measured in units of BTU (British Thermal Units) per gallon or per liter.

• The higher the calorific value, the more heat energy is released when the oil is burned.

• This heat energy is used to generate steam in boilers for various industrial processes.

Boiler daily activity involves monitoring, maintaining and repairing boilers.

• Check and record boiler pressure, temperature and water levels

• Inspect and clean boiler components such as burners, tubes and valves

• Perform routine maintenance tasks such as lubrication and filter replacement

• Troubleshoot and repair boiler malfunctions

• Ensure compliance with safety regulations and procedures