Cochin Shipyard Blasting and Painting Supervisor Interview Questions and Answers

There are several types of blasting grades, each with specific characteristics and applications.

• There are typically three main types of blasting grades: commercial, near-white, and white metal.

• Commercial blasting grade is the most common and is used for general surface preparation.

• Near-white blasting grade is a higher quality finish used for more critical applications.

• White metal blasting grade is the highest quality f...read more

There are several types of paints used in blasting and painting, each with specific properties and applications.

• Types of paints include epoxy, polyurethane, acrylic, alkyd, and enamel

• Each type of paint has different properties such as durability, flexibility, and resistance to chemicals

• Epoxy paint is commonly used for its durability and chemical resistance, while polyurethane paint offers excellent UV resistance

• Acrylic...read more

There are typically three types of hydro blasting grades: light-duty, medium-duty, and heavy-duty.

• Light-duty hydro blasting is typically used for light surface preparation and removal of thin coatings.

• Medium-duty hydro blasting is used for medium surface preparation and removal of thicker coatings.

• Heavy-duty hydro blasting is used for heavy surface preparation and removal of tough coatings or corrosion.

• Each grade of hy...read more

The name of a spray pump is typically determined by the manufacturer or brand.

• Spray pumps may be named based on their function or design features (e.g. airless spray pump, diaphragm pump)

• Some common spray pump brands include Graco, Wagner, and Titan

• The name of a spray pump can also include specific model numbers or series names