Senior Technical Services Engineer Interview Questions and Answers

IS Codes of cement are standards set by the Bureau of Indian Standards for quality control and testing of cement products.

• IS 269: Specification for Ordinary Portland Cement

• IS 455: Specification for Portland Slag Cement

• IS 1489: Specification for Portland Pozzolana Cement

• IS 8041: Specification for Rapid Hardening Portland Cement

Plating processes are used to coat a surface with a thin layer of metal to improve its properties.

• Electroplating - uses an electric current to deposit metal ions onto a surface

• Electroless plating - uses a chemical reaction to deposit metal onto a surface

• Immersion plating - involves dipping a surface into a solution containing metal ions

• Vacuum plating - uses a vacuum to deposit metal onto a surface

• Selective plating - deposits metal onto specific areas of a surface using a mask...read more

Chrome plating is used to improve the appearance, durability, and corrosion resistance of metal surfaces.

• Chrome plating provides a shiny and reflective surface finish.

• It increases the hardness and wear resistance of the metal.

• Chrome plating also protects against corrosion and oxidation.

• It is commonly used on automotive parts, bathroom fixtures, and tools.

• Chrome plating can also be used for decorative purposes on jewelry and household items.

Mix design is the process of selecting suitable ingredients and determining their proportions to produce concrete with desired properties.

• Involves selecting the right combination of materials like cement, aggregates, water, and admixtures

• Proportions are determined based on desired strength, workability, durability, and other properties

• Testing is done to ensure the mix meets specifications and performance requirements