20+ Ozone Overseas Interview Questions and Answers

Steam in a boiler is generated by heating water to its boiling point. There are various types of boilers, such as fire tube, water tube, and electric boilers.

• Boilers generate steam by heating water to its boiling point

• Types of boilers include fire tube, water tube, and electric boilers

• Fire tube boilers have hot gases flowing through tubes that are surrounded by water

• Water tube boilers have water flowing through tubes that are heated by combustion gases

• Electric boilers use ele...read more

Hardness is a measure of a material's resistance to deformation.

• Hardness is typically measured using tests like Rockwell, Brinell, Vickers, or Knoop.

• It is important in engineering to determine the suitability of materials for specific applications.

• Hardness can be affected by factors such as composition, heat treatment, and processing.

• Higher hardness values indicate greater resistance to indentation or scratching.

• Examples of hard materials include diamond, tungsten carbide, an...read more

The tensile strength of Ductile Iron typically ranges from 60,000 to 100,000 psi.

• Tensile strength of Ductile Iron is influenced by factors such as the manufacturing process, chemical composition, and heat treatment.

• Typical tensile strength values for Ductile Iron range from 60,000 to 100,000 psi.

• Ductile Iron is known for its high strength and ductility, making it suitable for a variety of engineering applications.

DM plant equipment includes ion exchange resin beds, reverse osmosis units, and mixed bed exchangers. Coal handling plant equipment includes crushers, conveyors, and stacker reclaimers.

• DM plant equipment: ion exchange resin beds, reverse osmosis units, mixed bed exchangers

• Coal handling plant equipment: crushers, conveyors, stacker reclaimers

• Demineralised water used in boiler to prevent scaling and corrosion

• High mineral content in water can lead to boiler inefficiency and dama...read more

Electricity in power plants is generated through various methods like burning fossil fuels, nuclear reactions, or harnessing renewable sources like wind or solar.

• Burning fossil fuels like coal, oil, or natural gas to heat water and produce steam to turn turbines

• Nuclear reactions in nuclear power plants to generate heat and produce steam

• Harnessing renewable sources like wind turbines or solar panels to convert natural energy into electricity

Electrosteel is a leading manufacturer of ductile iron pipes and fittings for water and wastewater transportation.

• Electrosteel was established in 1955 in India.

• The company specializes in manufacturing ductile iron pipes and fittings for water and wastewater transportation.

• Electrosteel has a strong presence in the infrastructure sector and has supplied its products for various projects in India and abroad.

• The company is known for its high-quality products and innovative soluti...read more

Tensile strength of Ductile Iron is 420 MPa, indicating its ability to withstand pulling forces without breaking.

• Tensile strength is a measure of a material's ability to resist breaking under tension.

• Ductile Iron has a higher tensile strength compared to other types of iron, making it suitable for applications requiring strength and durability.

• Examples of applications where Ductile Iron's high tensile strength is beneficial include automotive components, pipes, and machinery ...read more

SAP is an enterprise resource planning software while Excel is a spreadsheet program. Excel has formulas for calculations like SUM, AVERAGE, VLOOKUP, etc.

• SAP is an integrated business software used for managing various business functions, while Excel is a spreadsheet program used for data analysis and calculations.

• Excel has built-in formulas like SUM, AVERAGE, MAX, MIN for performing calculations on data.

• Some commonly used Excel formulas include VLOOKUP for searching for a va...read more

Fines are not added in Blast Furnace due to their tendency to block the flow of gases and decrease efficiency.

• Fines have a tendency to block the flow of gases in the Blast Furnace, reducing efficiency.

• Adding fines can lead to uneven distribution of materials and hinder the smelting process.

• Fines can also cause issues with permeability and reduce the quality of the final product.

• To avoid these problems, fines are usually agglomerated into larger particles before being added to...read more

Unit of strain is dimensionless, mechanical properties include stress, strain, modulus of elasticity, yield strength, ultimate tensile strength, etc.

• Strain is a dimensionless quantity representing the deformation of a material relative to its original size.

• Mechanical properties include stress, strain, modulus of elasticity, yield strength, ultimate tensile strength, etc.

• Units of stress are typically measured in Pascals (Pa) or pounds per square inch (psi).

• Units of strain are ...read more

A cantilever beam is a type of beam that is fixed at one end and free at the other end.

• Cantilever beams are commonly used in construction and engineering projects.

• Examples of cantilever beams include diving boards, balconies, and shelves.

• They are designed to support loads on the free end without any additional support at that end.

Iron making involves extracting iron from iron ore, while steel making involves refining iron into steel.

• Iron making involves processes like blast furnace and direct reduction, while steel making involves processes like basic oxygen furnace and electric arc furnace.

• Iron making typically produces pig iron, while steel making produces various grades of steel.

• Iron making is the first step in the production of steel, as steel making involves further refining and alloying of iron....read more

To make GRN while receiving goods, ensure accurate details like quantity, quality, and supplier information are recorded.

• Verify the received goods against the purchase order to ensure accuracy

• Check the quantity and quality of the goods received

• Record the details such as supplier information, quantity received, and any discrepancies

• Generate the Goods Receipt Note (GRN) in the system to confirm receipt of goods

C value is a parameter used in machine learning algorithms to control the trade-off between model complexity and accuracy.

• C value determines how much importance the model places on minimizing errors.

• A higher C value leads to a more complex model that may overfit the training data.

• A lower C value results in a simpler model that may underfit the data.

• C value is commonly used in Support Vector Machines (SVM) and logistic regression algorithms.

Zinc is extracted from its ore through a process called roasting and then electrolysis.

• Zinc ore is first crushed and then concentrated by froth flotation.

• The concentrated ore is then roasted in the presence of air to form zinc oxide.

• Zinc oxide is then reduced to zinc metal using electrolysis.

• The zinc metal is then melted and cast into ingots for further processing.

A permit required to work at scaffolding is a scaffolding permit.

• Scaffolding permit is required to ensure safety and compliance with regulations

• Permit may include training requirements and safety protocols

• Examples of scaffolding permits include OSHA scaffolding permit in the US

A safety officer is responsible for ensuring the safety and well-being of individuals in a workplace or environment.

• Developing and implementing safety policies and procedures

• Conducting regular safety inspections and audits

• Identifying and assessing potential hazards and risks

• Providing safety training and education to employees

• Investigating accidents and incidents and implementing corrective actions

• Maintaining safety records and documentation

• Collaborating with management and em...read more

The full process of a power plant involves converting fuel into electricity through various stages.

• Fuel (such as coal, natural gas, or nuclear material) is burned to produce heat

• The heat is used to boil water and create steam

• The steam turns a turbine connected to a generator, producing electricity

• The electricity is then sent through transmission lines to homes and businesses

• Waste heat is often captured and used for other purposes to increase efficiency

Power plant equipment are devices used in power generation processes.

• Boilers

• Turbines

• Generators

• Transformers

• Condensers

Safety procedures on site are crucial for preventing accidents and injuries.

• Always wear appropriate personal protective equipment (PPE) such as hard hats, safety goggles, and gloves.

• Follow all safety guidelines and protocols set by the company or site supervisor.

• Regularly inspect and maintain tools and equipment to ensure they are in good working condition.

• Attend safety training sessions to stay updated on best practices and procedures.

• Report any hazards or unsafe conditions ...read more

FRL unit, hydraulic pump and different types of valve are all important components in mechanical engineering.

• FRL unit stands for Filter, Regulator, and Lubricator unit which is used to clean, regulate and lubricate compressed air in pneumatic systems.

• Hydraulic pump is used to convert mechanical power into hydraulic energy which is used to power hydraulic machinery.

• Different types of valves include ball valves, gate valves, globe valves, and check valves which are used to cont...read more

Fire hydrants are a crucial part of firefighting equipment that provide a ready supply of water to extinguish fires.

• Fire hydrants are connected to a network of underground water pipes.

• They have a valve that can be opened to release water.

• The water supply is pressurized to ensure a strong flow.

• Firefighters use specialized hoses to connect to the hydrant and direct the water to the fire.

• Hydrants are color-coded to indicate the water pressure available.

Electrical devices are tools that use electricity to perform a specific function.

• Examples include: light bulbs, fans, heaters, refrigerators, and computers.

• Electrical devices work by converting electrical energy into another form of energy, such as light, heat, or motion.

• They can be powered by batteries, generators, or by being plugged into an electrical outlet.

• It is important to use electrical devices safely and follow manufacturer instructions to prevent accidents and injur...read more

Reactions in BF refer to the chemical reactions that occur in a blast furnace during the production of iron.

• Reactions involve the reduction of iron ore (Fe2O3) to iron (Fe) using carbon monoxide (CO) as the reducing agent.

• Other reactions include the formation of slag from impurities in the iron ore and the reduction of other metal oxides present.

• The overall reaction in a blast furnace can be represented as: Fe2O3 + 3CO -> 2Fe + 3CO2

• Temperature, pressure, and composition of th...read more

Confined space is an area that is not designed for continuous occupancy, has limited entry and exit points, and may have poor ventilation.

• Confined spaces are typically small and enclosed, making it difficult to enter and exit.

• These spaces may have limited oxygen supply, toxic gases, or other hazards present.

• Examples of confined spaces include storage tanks, sewers, tunnels, and crawl spaces.

To select a drive, click on the drive icon or use the drop-down menu in the file explorer.

• Click on the drive icon in the file explorer

• Use the drop-down menu in the file explorer to select the drive

• Type the drive letter in the address bar of the file explorer

Electrical safety in site is crucial to prevent accidents and ensure the well-being of workers.

• Ensure all electrical equipment is properly grounded and regularly inspected.

• Implement lockout/tagout procedures to prevent accidental energization of equipment.

• Provide proper training to workers on electrical safety practices and procedures.

• Use appropriate personal protective equipment (PPE) when working with electricity.

• Regularly maintain and repair electrical systems to prevent p...read more