20+ Prabhu Public School Interview Questions and Answers

Pressure relief is the act of reducing pressure, while a pressure relief valve is a device used to control pressure.

• Pressure relief is a general term that refers to any action taken to reduce pressure in a system.

• Pressure relief valves are specific devices that are designed to open and release pressure when it reaches a certain level.

• Pressure relief can be achieved through various means, such as adjusting the flow rate or temperature of a system.

• Pressure relief valves are com...read more

FMEA is Failure Modes and Effects Analysis used to identify and prioritize potential failures in a process or product.

• FMEA involves identifying potential failure modes, their effects, and the likelihood of their occurrence.

• To improve a control plan using FMEA, prioritize high-risk failure modes and implement controls to prevent or mitigate them.

• Regularly review and update the FMEA and control plan based on new information or changes in the process.

• Involve cross-functional tea...read more

Bearing is a machine element that supports a rotating shaft and reduces friction between moving parts.

• Bearing helps in reducing friction between moving parts

• It supports a rotating shaft

• Bearing is used in various machines like automobiles, industrial machinery, etc.

• The specification of bearing includes its size, load capacity, speed rating, and material used

I would assess the situation, ensure the safety of passengers, contact the appropriate authorities for assistance, and communicate with passengers about the situation.

• Assess the situation to determine the cause of the breakdown

• Ensure the safety of passengers by directing them to a safe location

• Contact the appropriate authorities such as a towing service or maintenance team for assistance

• Communicate with passengers about the situation, provide updates, and offer alternative tr...read more

Reverse arc flashing on ACB breaker refers to the phenomenon where the arc flash occurs on the opposite side of the contacts during the opening operation.

• Reverse arc flashing happens when the arc flash occurs on the side of the contacts opposite to the normal direction during the opening operation of the ACB breaker.

• This phenomenon can be caused by factors such as high fault currents, improper maintenance, or inadequate arc flash protection.

• Reverse arc flashing can pose a saf...read more

5S is a methodology used to organize a workplace for efficiency and effectiveness by sorting, setting in order, shining, standardizing, and sustaining.

• Sort - Remove unnecessary items from the workplace.

• Set in order - Organize remaining items in a logical manner.

• Shine - Clean and inspect the workplace regularly.

• Standardize - Establish standards and procedures for maintaining the workplace.

• Sustain - Ensure the 5S system is maintained and improved over time.

• Example: Labeling too...read more

To find the error in root cause, analyze the situation, gather data, identify potential causes, and test hypotheses.

• Analyze the situation thoroughly to understand the context of the error.

• Gather data from various sources to identify patterns or anomalies.

• Identify potential causes by brainstorming and using tools like fishbone diagrams or 5 Whys.

• Test hypotheses by conducting experiments or simulations to validate the root cause.

• Iterate the process if necessary to refine the un...read more

Company policy on payment status includes guidelines for timely payments, penalties for late payments, and methods of payment.

• Company policy should outline the timeline for payment submission and processing

• There may be penalties for late payments, such as interest charges or suspension of services

• Accepted methods of payment should be clearly stated in the policy

A hydraulic circuit is a system that uses fluid to transmit power and energy.

• It consists of a pump, fluid reservoir, valves, actuators, and hydraulic fluid.

• The pump pressurizes the fluid, which then flows through the circuit to power the actuators.

• Valves control the flow and direction of the fluid, allowing for precise control of the actuators.

• Examples include hydraulic brakes in cars and hydraulic lifts in construction equipment.

Third-party inspection involves hiring an external organization to assess the quality and compliance of products or services.

• Third-party inspection helps ensure impartiality and objectivity in evaluating the quality of products or services.

• These inspections are often conducted by specialized organizations with expertise in specific industries.

• Third-party inspectors provide independent verification of compliance with regulations, standards, and specifications.

• Examples of third...read more

Handle clients with professionalism, communication, and empathy.

• Listen actively to understand their needs and concerns.

• Communicate clearly and effectively to manage expectations.

• Show empathy and understanding to build rapport and trust.

• Be proactive in addressing any issues or concerns they may have.

• Follow up to ensure satisfaction and maintain a positive relationship.

I manage LMV vehicle and guest house by ensuring regular maintenance, monitoring expenses, and providing a comfortable stay for guests.

• Regularly schedule maintenance for the LMV vehicle to ensure it is in good working condition

• Keep track of expenses related to vehicle maintenance, fuel, and repairs

• Maintain cleanliness and organization in the guest house to provide a comfortable stay for guests

• Handle guest reservations, check-ins, and check-outs efficiently

• Address any guest co...read more

Failure Mode and Effects Analysis

• FMEA stands for Failure Mode and Effects Analysis

• It is a systematic method for identifying and preventing potential failures in a design or process

• Helps in prioritizing and addressing potential failure modes based on their impact and likelihood

• Commonly used in industries such as automotive, aerospace, and manufacturing

• Example: Conducting FMEA on a car engine to identify potential failure modes like overheating or oil leakage

Power factor is the ratio of real power to apparent power in an AC circuit. VFD stands for Variable Frequency Drive. AC motors run on alternating current while DC motors run on direct current.

• Power factor is a measure of how effectively electrical power is being used in a circuit.

• It is calculated by dividing the real power (in watts) by the apparent power (in volt-amperes).

• A power factor of 1 indicates that all the power is being used effectively, while a power factor less th...read more

Hydraulic cylinder works on the principle of converting hydraulic energy into mechanical energy.

• Hydraulic fluid is used to transmit force from one point to another

• The cylinder consists of a piston and a cylinder barrel

• When hydraulic fluid is pumped into the cylinder, it pushes the piston, creating mechanical force

• The force generated by the cylinder can be used for various applications such as lifting heavy objects or moving machinery

• Hydraulic cylinders are commonly used in co...read more

To allocate manpower efficiently, assess project requirements, assign tasks based on skills, monitor progress, and adjust as needed.

• Assess project requirements to determine manpower needs

• Assign tasks based on individual skills and strengths

• Monitor progress regularly to ensure tasks are being completed on time

• Adjust manpower allocation as needed based on project changes or unforeseen circumstances

Improving blast furnace productivity involves optimizing operations, maintenance, and technology.

• Implement regular maintenance schedules to prevent breakdowns and downtime.

• Optimize raw material quality and charging practices for efficient operation.

• Utilize advanced technology and automation to monitor and control the process.

• Train and empower employees to identify and address productivity issues.

• Analyze data and performance metrics to identify areas for improvement.

• Collaborat...read more

To decrease the fuel rate of blast furnace, optimize the combustion process, improve insulation, and use alternative fuels.

• Optimize the combustion process by adjusting air-to-fuel ratio and ensuring proper mixing of fuel and air.

• Improve insulation of the furnace to reduce heat loss and increase efficiency.

• Use alternative fuels such as natural gas or biomass to reduce the consumption of traditional fuels like coal or coke.

The best percentage of Alumina for sintering depends on the specific material and desired properties.

• The optimal percentage of Alumina for sintering can vary depending on the material being processed.

• Generally, Alumina content in the range of 5-30% is common for sintering ceramics.

• Higher Alumina content can lead to increased strength and hardness, but may also make the material more brittle.

• Lower Alumina content may result in better thermal shock resistance.

• It is important to...read more

Deployment of company vehicles is managed through a systematic process.

• Company vehicles are deployed based on specific criteria and requirements.

• A vehicle deployment plan is created to ensure efficient utilization.

• The process involves assigning vehicles to employees based on their roles and responsibilities.

• Regular maintenance and monitoring of vehicles are essential for smooth deployment.

• Tracking systems may be used to monitor vehicle usage and location.

• Proper documentation ...read more

To solve mould vibration problem, identify root cause, adjust machine settings, use vibration dampening materials, and regularly maintain equipment.

• Identify the root cause of the vibration issue by inspecting the mould and surrounding equipment.

• Adjust machine settings such as speed, pressure, and temperature to minimize vibration.

• Use vibration dampening materials like rubber pads or mounts to reduce the impact of vibrations.

• Regularly maintain equipment to prevent any potentia...read more

Boiler works by heating water to create steam, which is used to generate power or heat.

• Boiler heats water to create steam through combustion of fuel or electricity

• Steam produced is used for various applications like power generation or heating

• Boiler components include burner, combustion chamber, heat exchanger, and controls

A pump is a mechanical device used to move fluids from one place to another. There are various types of pumps.

• Pumps are used in various industries such as water treatment, oil and gas, and chemical processing.

• Types of pumps include centrifugal, positive displacement, and axial flow pumps.

• Centrifugal pumps are commonly used in water treatment and HVAC systems.

• Positive displacement pumps are used in applications where a constant flow rate is required, such as in chemical proces...read more

A blast furnace is a type of metallurgical furnace used for smelting to produce industrial metals, generally iron.

• Used for smelting iron ores to produce iron

• Consists of a furnace chamber with a tuyere at the bottom for air supply

• Operates at high temperatures to melt the iron ore and extract the metal

• Commonly used in the steelmaking industry

I expect a challenging role with opportunities for growth and development.

• Opportunities for career advancement

• Challenging work assignments

• Supportive work environment

• Competitive salary and benefits

Alignment of mould is crucial for ensuring proper functioning and quality of the final product.

• Ensure mould components are properly assembled and secured

• Use alignment tools such as dial indicators or laser alignment systems

• Check for any misalignments or discrepancies and make necessary adjustments

• Regularly inspect and maintain the mould to prevent misalignment issues

• Consult with senior engineers or experts for guidance if needed

Types of load cells include strain gauge load cells, hydraulic load cells, and capacitive load cells.

• Strain gauge load cells measure the strain or deformation of a material.

• Hydraulic load cells use hydraulic fluid to measure force.

• Capacitive load cells measure changes in capacitance to determine force.

• Other types of load cells include piezoelectric load cells and pneumatic load cells.