Thermax Limited Mechanical Engineer Interview Questions and Answers for Experienced

Boiler startup producer is a device used to ignite the fuel and start the combustion process in a boiler.

• Boiler startup producer is also known as an ignition system.

• It is responsible for producing a spark or flame to ignite the fuel.

• There are different types of startup producers such as pilot lights, electric starters, and oil guns.

• The type of startup producer used depends on the type of fuel and boiler being used.

• Prop...read more

Draft in a boiler refers to the flow of air or gases through the combustion chamber and flue gas passages.

• Draft is created by a difference in pressure between the inside and outside of the boiler.

• It is necessary for proper combustion and efficient operation of the boiler.

• There are two types of draft: natural draft and forced draft.

• Natural draft is created by the buoyancy of hot gases, while forced draft is created by m...read more

Cooling tower performance is measured by its ability to remove heat from a process stream.

• Cooling tower performance is affected by factors such as air flow rate, water flow rate, and temperature difference between the process stream and cooling water.

• The efficiency of a cooling tower can be improved by increasing the surface area of the heat transfer media, using a more efficient fan, or optimizing the water distributi...read more

Pump lineup is crucial for efficient operation. Proper selection and maintenance can improve efficiency.

• Pump lineup should be selected based on the required flow rate and head

• Centrifugal pumps are commonly used for low viscosity fluids while positive displacement pumps are used for high viscosity fluids

• Efficiency can be improved by proper maintenance such as regular cleaning and lubrication

• Variable frequency drives can...read more