Jain Housing & Constructions Interview Questions and Answers

Welding electrodes and filler wires are used in welding processes to join two metals together.

• Types of welding electrodes include coated electrodes, non-coated electrodes, and tungsten electrodes.

• Filler wires are classified based on the type of metal being welded, such as aluminum, stainless steel, and nickel alloys.

• Coated electrodes have a flux coating that protects the weld from contamination and provides a shielding gas.

• Tungsten electrodes are used in TIG welding and are m...read more

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

• MIG (Metal Inert Gas) welding uses a wire electrode and a shielding gas to join two metal pieces together.

• TIG (Tungsten Inert Gas) welding uses a tungsten electrode and a shielding gas to create a precise and clean weld.

• Stick welding uses a consumable electrode coated in flux to create a strong bond between two metal pieces.

• Flux-Cored welding uses a wire electrode with a flux c...read more

The formula for calculating dishend blank size depends on the diameter and height of the dishend.

• The formula is: Blank Diameter = Outside Diameter - (2 x Knuckle Radius)

• The Knuckle Radius is typically 6% of the dishend diameter

• The Height of the dishend is also a factor in the calculation

• The formula for calculating the Height is: Height = 0.193 x Blank Diameter

Dishends are used to close the ends of cylindrical vessels. Different types include torispherical, ellipsoidal, hemispherical, and conical.

• Torispherical dishend has a knuckle radius and a spherical radius

• Ellipsoidal dishend has a greater depth than torispherical and a flatter shape

• Hemispherical dishend has a radius equal to the diameter of the cylinder

• Conical dishend has a cone shape and is used for pressure vessels with a large diameter

• Other types include toriconical, flat, ...read more

Pressure vessel design code specifies the requirements for designing, manufacturing, and testing pressure vessels.

• Pressure vessel design code ensures safety and reliability of pressure vessels

• Common pressure vessel design codes include ASME Boiler and Pressure Vessel Code, EN 13445, and API 510

• Design code outlines materials, design criteria, fabrication methods, inspection procedures, and testing requirements