RNRSV School Interview Questions and Answers

The specific water consumption rate in steel industries varies depending on various factors such as the production process, technology used, and water management practices.

• Specific water consumption rate in steel industries is measured in terms of water used per ton of steel produced.

• It can range from 2 to 50 cubic meters per ton of steel, depending on the efficiency of the steelmaking process.

• Factors influencing the specific water consumption rate include the type of steelma...read more

Centrifugal pumps work on the principle of converting rotational energy into kinetic energy to move fluid.

• Centrifugal pumps use an impeller to create centrifugal force, which pushes the fluid towards the outlet.

• The impeller rotates at high speed, creating a low-pressure zone at the center and a high-pressure zone at the outer edges.

• Fluid enters the pump through the suction inlet and is accelerated by the impeller, increasing its kinetic energy.

• The kinetic energy is then conve...read more

Ductile iron is a type of cast iron that has improved strength and ductility due to the addition of magnesium.

• Ductile iron is produced by adding magnesium to molten iron, which causes the graphite to form in nodules rather than flakes.

• The iron carbon diagram shows the phases of iron and carbon at different temperatures and carbon concentrations.

• Drawing the iron carbon diagram involves plotting the percentage of carbon on the x-axis and temperature on the y-axis, and identifyi...read more

ISO standards are a set of guidelines that ensure quality, safety, and efficiency in products and services.

• ISO stands for International Organization for Standardization

• ISO standards cover various industries such as manufacturing, healthcare, and technology

• ISO 9001 is a quality management standard that focuses on customer satisfaction and continuous improvement

• ISO 14001 is an environmental management standard that helps organizations reduce their environmental impact

• ISO 27001 ...read more

A heat exchanger is a device used to transfer heat between two or more fluids.

• Heat exchangers are commonly used in HVAC systems, power plants, and refrigeration systems.

• They work by allowing heat to transfer from one fluid to another without the fluids mixing.

• There are different types of heat exchangers, including shell and tube, plate, and finned tube heat exchangers.

• Heat exchangers can be used for heating, cooling, or both.

• Efficiency of a heat exchanger is determined by fac...read more