Government of Bangladesh Interview Questions and Answers

Argon gas is used in TIG welding.

• TIG welding stands for Tungsten Inert Gas welding.

• Argon gas is used as a shielding gas to protect the weld from atmospheric contamination.

• Argon gas is preferred over other gases because it is inert and does not react with the metal being welded.

• Argon gas also helps to stabilize the electric arc and improve the quality of the weld.

• Other gases like helium or a mixture of argon and helium can also be used in TIG welding depending on the applicati...read more

Yes, I have experience in understanding and interpreting duct designs.

• I have worked on various projects where I had to review and understand duct designs.

• I am familiar with different types of ducts and their applications.

• I have knowledge of industry standards and codes related to duct design.

• I can read and interpret technical drawings and specifications related to ductwork.

• I have experience in coordinating with engineers and architects to ensure the duct design meets the proj...read more

AHU stands for Air Handling Unit. It is responsible for circulating, filtering, and conditioning air in a building.

• AHU is a mechanical device that is used to regulate and circulate air in a building.

• It is responsible for filtering and conditioning the air to maintain a comfortable and healthy indoor environment.

• AHUs are commonly used in HVAC systems in commercial and industrial buildings.

• Examples of AHUs include rooftop units, packaged units, and split systems.

There are several types of welding, including MIG, TIG, Stick, Flux-Cored, and Arc welding.

• MIG welding uses a wire electrode and a shielding gas to join two pieces of metal together.

• TIG welding uses a tungsten electrode and a filler metal to create a strong bond between two metals.

• Stick welding uses a consumable electrode and a flux coating to create a strong bond between two metals.

• Flux-Cored welding uses a wire electrode with a flux core to create a strong bond between two ...read more

Ducting system is a network of pipes used for ventilation, heating, and air conditioning.

• Ducting system is used to circulate air throughout a building or structure.

• It consists of a network of pipes, vents, and ducts that are connected to HVAC systems.

• Ducting systems can be made of various materials such as metal, fiberglass, or plastic.

• They can be designed for specific purposes such as exhaust ducts, supply ducts, or return ducts.

• Proper installation and maintenance of ducting...read more