Unified Power Interview Questions and Answers

There are several types of NDT inspections used in various industries.

• Non-destructive testing (NDT) is a method used to evaluate the properties of a material, component, or system without causing damage.

• Some common types of NDT inspections include visual inspection, ultrasonic testing, magnetic particle testing, liquid penetrant testing, radiographic testing, and eddy current testing.

• Visual inspection involves the dire...read more

There are four main types of welding positions: flat, horizontal, vertical, and overhead.

• Flat position: Welding is done on a horizontal surface.

• Horizontal position: Welding is done on a vertical surface, with the weld axis in a horizontal plane.

• Vertical position: Welding is done on a vertical surface, with the weld axis in a vertical plane.

• Overhead position: Welding is done on the underside of a horizontal surface.

The root gap refers to the distance between the root faces of two adjacent welds.

• The root gap is an important parameter in welding as it affects the quality and strength of the weld joint.

• It is measured as the distance between the root faces of the two base metals that are being joined together.

• The root gap should be properly controlled to ensure proper penetration of the weld metal and to avoid defects like lack of fu...read more

There are various types of welding electrodes used in different welding processes.

• Welding electrodes are classified based on their composition, coating, and current type.

• Common types of welding electrodes include E6010, E7018, and E308L.

• Different electrodes are used for specific applications such as mild steel, stainless steel, and aluminum welding.

• Some electrodes are designed for specific welding processes like shield...read more

The density of RT film refers to its mass per unit volume.

• Density is a measure of how much mass is contained in a given volume.

• In the case of RT film, density is typically expressed in grams per cubic centimeter (g/cm³).

• The density of RT film can vary depending on factors such as the specific material used and the manufacturing process.

• Density is an important property to consider in quality control as it can impact the...read more