Bharat Petroleum
30+ Mrc Mills Interview Questions and Answers
Q1. Projects Undertaken
I have undertaken various projects during my academic and professional career.
Developed a marketing campaign for a local startup
Led a team of 5 in a software development project for a client
Conducted a research project on consumer behavior in the retail industry
Designed and implemented a training program for new employees
Collaborated with a cross-functional team to improve supply chain efficiency
Q2. 1-why higher voltage is prefer for transportation ,2-why house wiring use in parallel not in series,3-saftey of transformers,4-doubly excited motor function ,5-neutral and earthing difference,6-kva rating of tr...
read moreAnswers to questions related to electrical engineering.
Higher voltage is preferred for transportation to reduce power loss and increase efficiency.
House wiring is done in parallel to ensure that if one appliance fails, others can still function.
Transformers are designed with safety features such as overcurrent protection and grounding to prevent electrical hazards.
Doubly excited motors are used in applications where high torque and precise control are required.
Neutral is a cu...read more
Q3. What is deference between RS 485 and RS 232
RS 485 is a multi-point communication standard while RS 232 is a point-to-point communication standard.
RS 485 supports up to 32 devices on a single bus while RS 232 only supports two devices.
RS 485 uses differential signaling for noise immunity while RS 232 uses single-ended signaling.
RS 485 can transmit data over longer distances than RS 232.
RS 485 is commonly used in industrial automation and control systems while RS 232 is commonly used for computer serial ports.
Q4. What is gate valve principal
A gate valve is a type of valve that uses a gate or wedge-shaped disc to control the flow of fluid.
Gate valves are commonly used in industrial applications to control the flow of liquids or gases.
The gate or disc of a gate valve moves up and down to open or close the valve.
Gate valves provide a tight seal when closed, preventing any leakage.
They are typically used in applications where a full flow or no flow condition is required.
Gate valves are often used in water treatment ...read more
Q5. What is Ohm's law?
Ohm's law states that the current flowing through a conductor is directly proportional to the voltage across it, and inversely proportional to the resistance of the conductor.
Ohm's law is expressed as V = I * R, where V is the voltage, I is the current, and R is the resistance.
It helps in calculating the current, voltage, or resistance in a circuit when the other two values are known.
For example, if a circuit has a voltage of 12 volts and a resistance of 4 ohms, the current f...read more
Q6. Are you ready for this job, I said yes am capable
Yes, I am ready for the job as I have the necessary skills and experience to support the Managing Director effectively.
I have experience in providing high-level administrative support to senior executives
I am proficient in managing calendars, scheduling meetings, and handling correspondence
I have strong communication and organizational skills that are essential for this role
Q7. Water density and temperature
Water density decreases as temperature increases.
Water density is the mass of water per unit volume.
As temperature increases, water molecules gain energy and move faster.
Faster moving molecules create more space between them, resulting in lower density.
For example, ice has a higher density than liquid water because the molecules are more closely packed.
Q8. What is pump working principles
Pump working principles involve the conversion of mechanical energy into fluid energy to transport fluids.
Pumps use mechanical energy to create pressure and move fluids.
They work based on the principle of fluid dynamics.
Pumps have an inlet and an outlet where fluids enter and exit.
The pump imparts energy to the fluid, increasing its pressure and kinetic energy.
Different types of pumps include centrifugal pumps, reciprocating pumps, and rotary pumps.
Example: A centrifugal pump...read more
Q9. What is valve type of valve
A valve is a device that controls the flow of fluid or gas by opening, closing, or partially obstructing various passageways.
Valves are used in various industries such as oil and gas, water treatment, power generation, and manufacturing.
There are different types of valves including gate valves, globe valves, ball valves, butterfly valves, and check valves.
Gate valves are used to fully open or close the flow of fluid, while globe valves control the flow by adjusting the positi...read more
Q10. Rosov full form
ROSOV stands for Return on Sales and Operating Value.
ROSOV is a financial metric used to measure the profitability of a company.
It calculates the return on sales and operating value by dividing the operating profit by the sales revenue.
ROSOV helps in evaluating the efficiency and effectiveness of a company's operations.
It is often used by investors and analysts to assess the financial performance of a company.
For example, if a company has an operating profit of $1 million and...read more
Q11. What is nozzle use of nozzle
A nozzle is a device used to control the flow and direction of a fluid or gas.
Nozzles are commonly used in various industries such as aerospace, automotive, and manufacturing.
They are used to accelerate or decelerate fluid flow, create a desired spray pattern, or generate thrust.
Examples of nozzle applications include rocket engines, fuel injectors, spray painting equipment, and fire hoses.
Q12. Different mco pcmo and cvo Lubricants
MCO, PCMO, and CVO lubricants are different types of lubricants used in various industries for different purposes.
MCO stands for Marine Cylinder Oil, used in marine engines to reduce friction and wear.
PCMO stands for Passenger Car Motor Oil, used in automotive engines to lubricate moving parts and reduce heat.
CVO stands for Commercial Vehicle Oil, used in heavy-duty vehicles like trucks and buses to provide lubrication and protect against wear and tear.
Q13. Different of Lubricants 20w40 10w30
Lubricants 20w40 and 10w30 differ in their viscosity grades, with 20w40 being thicker and better suited for high temperatures.
20w40 has a higher viscosity grade compared to 10w30
10w30 is thinner and flows more easily in cold temperatures
20w40 is better suited for high temperature environments
10w30 may provide better fuel economy due to lower viscosity
Q14. Different of Lubricants 15w40 5w30
15w40 and 5w30 are different types of lubricants used in vehicles, with varying viscosity and temperature ranges.
15w40 has a higher viscosity compared to 5w30
5w30 is better suited for colder temperatures due to its lower viscosity
15w40 is commonly used in diesel engines while 5w30 is used in gasoline engines
Q15. How many types of PLC?
There are several types of PLCs, including modular, compact, rack-mounted, and software-based PLCs.
Modular PLCs are designed to be expandable and customizable.
Compact PLCs are smaller and more cost-effective than modular PLCs.
Rack-mounted PLCs are designed to be mounted in a standard equipment rack.
Software-based PLCs run on a computer and use specialized software to emulate a physical PLC.
Other types of PLCs include safety PLCs, high-speed PLCs, and distributed PLCs.
The type...read more
Q16. What is HSD density
HSD density refers to the density of High-Speed Diesel fuel.
HSD density is the measure of mass per unit volume of High-Speed Diesel fuel.
It is typically expressed in kilograms per liter (kg/L) or grams per milliliter (g/mL).
The density of HSD can vary depending on factors such as temperature and composition.
Knowing the density of HSD is important for various engineering calculations and fuel efficiency analysis.
For example, a higher density of HSD can indicate a higher energy...read more
Q17. What is EBMS density
EBMS density refers to the density of the Engineered Biomaterial System used in mechanical engineering.
EBMS density is a measure of the mass per unit volume of the Engineered Biomaterial System.
It is an important parameter in designing and analyzing mechanical components made from EBMS.
EBMS density can vary depending on the composition and structure of the biomaterial.
Higher density materials are generally stronger and more rigid.
Examples of EBMS density include the density o...read more
Q18. Field instrumentation working principle Standard and codes using in industry
Field instrumentation measures and controls process variables using sensors and transmitters. Industry standards and codes ensure safety and reliability.
Field instrumentation uses sensors and transmitters to measure and control process variables such as temperature, pressure, flow, and level.
Industry standards and codes ensure safety and reliability of instrumentation systems.
Examples of standards and codes include ISA (International Society of Automation) standards, NEC (Nat...read more
Q19. Working principal gate valve
A gate valve is a type of valve that uses a gate or wedge-shaped disc to control the flow of fluid.
Gate valves are primarily used to start or stop the flow of fluid in a pipeline.
They have a sliding gate or disc that moves perpendicular to the flow of fluid.
When the gate is fully lifted, the flow is unrestricted, and when it is fully closed, the flow is completely stopped.
Gate valves are commonly used in applications where a tight shut-off is required, such as in water supply...read more
Q20. Favourite subject
My favourite subject is Mathematics.
I enjoy solving complex problems and equations.
I find it fascinating how mathematical concepts can be applied in various fields.
I have excelled in mathematics throughout my academic career.
I particularly enjoy calculus and statistics.
I believe mathematics is a fundamental subject that helps develop critical thinking skills.
Q21. Compressive strength of concrete
Compressive strength of concrete is the ability of concrete to withstand loads that tend to compress it.
Compressive strength is measured by testing concrete cubes or cylinders in a laboratory.
It is important for determining the quality and durability of concrete structures.
The strength of concrete can vary depending on factors like mix design, curing conditions, and age.
Typical values for compressive strength range from 2500 to 7000 psi.
Higher compressive strength is usually ...read more
Q22. Lubricants fired experience
I have 5 years of experience in selling lubricants to industrial clients, achieving 20% growth in sales each year.
Developed strong relationships with key clients in the industrial sector
Identified and pursued new business opportunities in the lubricants market
Provided technical expertise and support to clients in selecting the right lubricants for their needs
Consistently met or exceeded sales targets through effective negotiation and communication skills
Q23. Working of Lubricants
Lubricants are substances used to reduce friction between surfaces in mutual contact, which ultimately reduces the heat generated when the surfaces move.
Lubricants can be in the form of oils, greases, or solid lubricants.
They are used in various industries such as automotive, manufacturing, and aerospace.
Lubricants help to extend the lifespan of machinery by reducing wear and tear on moving parts.
They also help to improve efficiency and performance of machinery by reducing en...read more
Q24. Meaning of meneral oil
Mineral oil is a clear, colorless, odorless, and tasteless oil derived from petroleum.
Mineral oil is commonly used in cosmetics, pharmaceuticals, and as a lubricant.
It is often used as a laxative to relieve constipation.
Mineral oil can also be found in baby oil and various skincare products.
It is important to note that mineral oil should not be ingested in large quantities as it can cause health issues.
Q25. What is protocol?
Protocol is a set of rules and guidelines that govern the communication between devices or systems.
Protocols ensure that devices or systems can communicate with each other effectively and efficiently.
They define the format, timing, sequencing, and error checking of messages exchanged between devices or systems.
Examples of protocols include TCP/IP, HTTP, FTP, and SMTP.
Protocols can be implemented in hardware, software, or a combination of both.
Different protocols are used for ...read more
Q26. What is PLC?
PLC stands for Programmable Logic Controller. It is a digital computer used for automation of electromechanical processes.
PLC is used in industrial automation to control machinery and processes.
It is programmed using ladder logic or other programming languages.
PLC can be used in various applications such as manufacturing, transportation, and energy.
Examples of PLC brands include Siemens, Allen-Bradley, and Mitsubishi.
PLC can be connected to sensors and other devices to monito...read more
Q27. Grade of concrete
Grade of concrete refers to the strength of the concrete mix design, typically denoted by a number such as M20 or C30.
Grade of concrete is determined by the ratio of cement, sand, and aggregates in the mix.
Higher grade numbers indicate higher strength concrete.
Common grades include M20, M25, M30, etc. for mix design method and C15, C20, C25, etc. for nominal mix method.
Q28. Are you expert in excel?
Yes, I am an expert in Excel.
Proficient in using advanced functions like VLOOKUP, Pivot Tables, and Macros
Experience in creating complex spreadsheets for data analysis and reporting
Familiarity with Excel shortcuts and formatting options
Ability to troubleshoot and resolve issues in Excel
Certified in Microsoft Excel
Q29. Method of curing?
Curing is the process of maintaining adequate moisture and temperature for concrete to ensure proper hydration and strength development.
Curing can be done by methods such as ponding, wet covering, steam curing, and using curing compounds.
Ponding involves creating a pond of water on the concrete surface to keep it moist.
Wet covering is done by covering the concrete with wet burlap, sand, or other materials to retain moisture.
Steam curing involves applying steam to the concrete...read more
Q30. what is IC engine
An internal combustion engine (IC engine) is a type of engine that generates power by burning fuel inside the engine itself.
IC engines are commonly used in vehicles such as cars, motorcycles, and trucks.
They work by igniting fuel-air mixture inside a combustion chamber to create controlled explosions.
The energy from these explosions is converted into mechanical energy to drive the vehicle.
There are different types of IC engines including gasoline engines and diesel engines.
Q31. What is cnc machine
Q32. Type of welding
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