Revent Group Interview Questions, Process, and Tips for Experienced

Silica sand is commonly used in foundries due to its high melting point and low reactivity.

• Silica sand is the most commonly used type of sand in foundries.

• It has a high melting point, which makes it ideal for use in casting metals.

• It is also low in reactivity, which means it won't react with the metal being cast.

• Other types of sand, such as zircon sand, chromite sand, and olivine sand, may also be used in foundries dep...read more

Green sand is a mixture of sand, clay, water, and additives used in metal casting.

• Green sand is the most commonly used molding material in foundries.

• It gets its name from the fact that it is damp and green in color.

• The sand mixture is compacted around a pattern to create a mold for casting.

• The clay in the mixture helps to hold the sand together and create a smooth surface.

• Additives like coal dust or sea coal can be add...read more

Coal dust plays a significant role in various industries, including energy production and manufacturing.

• Coal dust is used as a fuel in power plants to generate electricity.

• It is also used in the manufacturing of steel and cement.

• Coal dust can be a health hazard for workers who are exposed to it regularly.

• It can cause respiratory problems and lung diseases such as black lung disease.

• Efforts are made to control coal dust...read more

Sodium bentonite, Calcium bentonite, Potassium bentonite, Aluminum bentonite

• Sodium bentonite is used in drilling muds, Calcium bentonite is used in cement and animal feed, Potassium bentonite is used in cosmetics and pharmaceuticals, Aluminum bentonite is used in water purification

• Bentonite is a type of clay that is composed of volcanic ash

• Bentonite is known for its ability to absorb water and expand

• Bentonite is also u

A cause and effect diagram of blow is a visual tool used to identify the possible causes and effects of a blow.

• The diagram consists of a central box representing the blow and branches representing the possible causes and effects.

• Causes can be categorized into six main categories: people, methods, machines, materials, measurements, and environment.

• Examples of causes of a blow could include faulty equipment, human error,...read more

A cause and effect diagram of shrinkage identifies the possible causes and their effects on the final product.

• Identify the main problem or effect of shrinkage

• List the possible causes of shrinkage such as material properties, processing conditions, or design factors

• Categorize the causes into major groups such as man, machine, material, method, or environment

• Analyze the causes and their effects on the final product

• Develo...read more

Precision refers to the level of accuracy and consistency in measurements or actions.

• Precision is the ability to consistently produce the same result.

• It involves minimizing the amount of error or deviation from the desired outcome.

• Precision is important in fields such as engineering, manufacturing, and science.

• Examples of precision include measuring instruments like micrometers and calipers, as well as machining proces...read more

Simulation is the imitation of a real-world process or system, while modeling is the creation of a simplified representation of a system.

• Simulation involves running a model to observe its behavior in different scenarios.

• Modeling involves creating a simplified representation of a system or process.

• Simulation is used to predict the behavior of a system under different conditions.

• Modeling is used to understand the behavio...read more

Jig and fixture are tools used in manufacturing to hold and guide workpieces during machining operations.

• Jigs are used to guide and control the cutting tool during machining operations.

• Fixtures are used to hold and position the workpiece in the correct orientation for machining.

• They increase production efficiency and accuracy while reducing costs.

• Examples include drill jigs, welding fixtures, and inspection fixtures.