Calderys India Refractories R&D Technician Interview Questions and Answers

The micrometer list count refers to the number of items or components listed in a micrometer measurement tool.

• The micrometer list count is the total number of items listed on a micrometer measurement tool

• It helps in accurately measuring the dimensions of small objects or components

• For example, a micrometer list count of 0.01mm indicates that the tool can measure up to 0.01mm precision

The list count of varniya caliper is typically 0, as varniya caliper is not a standard or commonly used tool in the field of measurement.

• Varniya caliper is not a standard tool in the field of measurement

• There is no specific list count for varniya caliper as it is not commonly used

• It is important to use standard calipers for accurate measurements

The material of the drill bit depends on the type of material being drilled and the desired outcome.

• Drill bits can be made of high-speed steel, cobalt steel, carbide, or diamond.

• High-speed steel drill bits are versatile and suitable for drilling wood, plastic, and soft metals.

• Cobalt steel drill bits are harder and more heat-resistant, making them ideal for drilling hard metals.

• Carbide drill bits are extremely hard and ...read more

Center punches are tools used to make small indentations in metal or other materials for drilling or marking purposes.

• Automatic center punch: Spring-loaded for easy one-handed operation

• Manual center punch: Requires a hammer to create the indentation

• Transfer punch: Used for transferring hole locations from one material to another

• Prick punch: Has a sharper point for more precise marking

Extrusion presses are used to create products with a consistent cross-sectional profile by forcing material through a die.

• There are different types of extrusion presses based on the method of operation, such as direct extrusion press, indirect extrusion press, and impact extrusion press.

• Direct extrusion presses push the material through the die using a ram, while indirect extrusion presses pull the material through the...read more

Precautions must be taken to ensure safety while opening the pump.

• Ensure that the pump is isolated from the power source.

• Release any pressure in the pump before opening it.

• Wear appropriate personal protective equipment (PPE) such as gloves, goggles, and a face shield.

• Follow the manufacturer's instructions for opening the pump.

• Use proper tools and equipment to avoid damaging the pump or injuring yourself.

• Inspect the pum...read more

The procedure involves closing the second valve and then opening it again.

• Isolate the second valve by closing it completely

• Wait for a few seconds to ensure the valve is fully closed

• Open the valve slowly to prevent damage to the valve or system

• Check for any leaks or abnormalities in the system

• Repeat the procedure if necessary