Megha Engineering & Infrastructures EHS Officer Interview Questions, Process, and Tips

Q1. Tell me about something you.
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Q2. Salary expectations about current
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Q1. Mivan shuttering cycle process
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Q2. Bar bending shedule
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Q3. About site and general material density test. Quality testing of cement, sand, steel
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Q1. HR will call you within 2 days
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Q1. Brief in QMS why it is adopted
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QMS is adopted to ensure consistent quality, meet customer requirements, and improve processes.
• Ensures consistent quality of products or services

• Helps meet customer requirements and expectations

• Improves processes and efficiency

• Reduces risks and errors

• Enhances customer satisfaction

• Provides a framework for continuous improvement
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Q2. Design mix procedure
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Design mix procedure involves determining the proportions of materials to create a concrete mix with desired properties.
• Identify the required strength and durability of the concrete

• Select suitable materials such as cement, aggregates, and water

• Calculate the proportions of each material based on mix design methods

• Test the mix to ensure it meets specifications

• Adjust the mix if necessary to achieve desired properties
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Q1. What is Work permit system?
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A work permit system is a formal written system used to control high-risk work activities to ensure safety of workers and the workplace.
• Work permit systems outline the procedures and requirements for carrying out specific high-risk tasks.

• They are used to assess risks, implement controls, and communicate safety measures to workers.

• Examples include hot work permits for welding, confined space entry permits, and electrica...read more
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Q2. What is confined space?
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Confined space is an area that is not designed for continuous occupancy, has limited entry and exit points, and may have hazardous conditions.
• Confined spaces are typically small and enclosed, making it difficult to enter and exit.

• These spaces may have poor ventilation, limited lighting, or contain hazardous substances.

• Examples of confined spaces include storage tanks, silos, tunnels, and sewers.
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Q3. Oxygen level in confined space?
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Oxygen level in confined spaces should be monitored to ensure safety of workers.
• Oxygen levels in confined spaces should be maintained between 19.5% and 23.5%.

• Low oxygen levels can lead to dizziness, confusion, and even loss of consciousness.

• High oxygen levels can increase the risk of fire and explosion.

• Monitoring equipment such as oxygen meters should be used to regularly check oxygen levels in confined spaces.
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Q4. Behaviour Issue
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Q1. How to make itp
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ITP stands for Inspection and Test Plan, a document outlining the procedures and criteria for quality control in a project.
• Define the scope and objectives of the project

• Identify the key activities and deliverables

• Specify the inspection and testing requirements

• Outline the acceptance criteria

• Assign responsibilities and timelines

• Review and approve the ITP before implementation
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Q2. How to make checklist
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Checklist can be made by identifying key tasks, setting priorities, creating categories, and including necessary details.
• Identify key tasks that need to be completed

• Set priorities for each task

• Create categories to organize tasks

• Include necessary details such as deadlines, responsible parties, and resources needed
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Normal introduction and interview

Q1. Type of electrical motor
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There are various types of electrical motors including AC motors, DC motors, synchronous motors, and induction motors.
• AC motors: commonly used in household appliances and industrial applications

• DC motors: used in applications where speed control is important, such as in electric vehicles

• Synchronous motors: used in applications where precise speed control is required, such as in clocks and timers

• Induction motors: widely...read more
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Q2. 3 phase induction motor starter
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Q3. Protection of transformer
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Protection of transformer involves measures to prevent damage from overcurrent, overvoltage, and overheating.
• Use overcurrent protection devices such as fuses and circuit breakers to prevent damage from excessive current flow.

• Install overvoltage protection devices like surge arresters to safeguard against voltage spikes.

• Implement temperature monitoring systems to prevent overheating, such as thermal sensors and cooling ...read more
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Q4. ACB VCB maintenance
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Q5. Star delta connection
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Q1. What is Full form DOL starter
Ans. 
DOL starter stands for Direct-On-Line starter, used to start motors by directly connecting them to the power supply.
• DOL starter is the simplest and most common type of motor starter.

• It directly connects the motor to the power supply without any intermediate starting method.

• It provides full voltage to the motor during starting, which can cause high inrush current.

• DOL starters are suitable for small to medium-sized motor...read more
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Q2. What is APFC PANEL
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APFC PANEL stands for Automatic Power Factor Correction Panel, used to maintain power factor in electrical systems.
• APFC PANEL automatically monitors and corrects the power factor of electrical systems.

• It helps in reducing electricity bills by maintaining a high power factor.

• APFC PANELs are commonly used in industries and commercial buildings.

• They consist of capacitors that are switched on and off based on the load requ...read more
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Q3. Star dalta conection
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Q1. What is ATS, transformer maintenance procedure, protection of transformer, maintenance procedure of motor, protection of motor, knowledge about SAP
Ans. 
ATS stands for Automatic Transfer Switch. It is used to transfer power supply between two sources. Transformer and motor maintenance procedures and protection methods are essential for their efficient operation. SAP is a software used for enterprise resource planning.
• ATS is used to automatically switch power supply between two sources, ensuring uninterrupted power supply.

• Transformer maintenance involves regular inspect...read more
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Q2. Knowledge about DG set, and spare material
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Q3. Rating of HT motor and FLC of HT motor
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HT motor rating is the maximum power it can handle and FLC is the current it draws at full load.
• HT motor rating is expressed in kilowatts (kW) or megawatts (MW).

• FLC of HT motor is the full load current it draws at rated voltage and frequency.

• FLC is expressed in amperes (A) and varies depending on the motor's power rating and efficiency.

• For example, a 1 MW HT motor may have a FLC of 1000 A at 11 kV.

• The rating and FLC of...read more
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Q4. Plant EHT system and single line diagram of plants.
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Plant EHT system and single line diagram of plants.
• EHT system refers to Extra High Tension system used in power plants

• Single line diagram shows the electrical connections between different components

• It is important to have a clear and accurate diagram for safety and maintenance purposes
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Q5. Knowledge about HT and LT breaker.
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Q1. All type contractors in use electrical panel
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Electrical panels can be used by various types of contractors.
• Electrical contractors are the most common type of contractors who use electrical panels.

• General contractors may also use electrical panels for specific projects.

• HVAC contractors may require electrical panels for their heating and cooling systems.

• Plumbing contractors may need electrical panels for water heaters or pumps.

• Fire protection contractors may use el...read more
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Q2. All type MCB in use panel
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Various types of MCBs are used in the panel.
• Type B MCB for general purpose circuits

• Type C MCB for circuits with inductive loads

• Type D MCB for circuits with high inrush currents

• Type K MCB for circuits with high inrush currents and motors

• Type Z MCB for circuits with DC components

• Type F MCB for circuits with sensitive equipment

• Type G MCB for circuits with surge protection

• Type L MCB for lighting circuits
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Q3. Difference in AC and DC current
Ans. 
AC current changes direction periodically while DC current flows in one direction only.
• AC current is used in household appliances while DC current is used in batteries and electronic devices.

• AC current can be easily transformed into different voltages using a transformer while DC current cannot.

• AC current is more dangerous to humans than DC current because it can cause muscle contractions.

• DC current is more efficient f...read more
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Q4. Definition of voltage
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Voltage is the measure of electric potential difference between two points in a circuit.
• Voltage is measured in volts (V).

• It is the force that drives electric current through a circuit.

• Voltage can be positive or negative depending on the direction of the current flow.

• A battery provides a voltage difference between its terminals to power a circuit.

• Voltage drop occurs when there is a decrease in voltage along a circuit du
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Q1. How many find the fault
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The question is unclear. Please provide more context.
• Please provide more information about the fault.

• Are you asking about fault-finding techniques or the number of people required to find a fault?

• Without more context, it is difficult to provide a specific answer.
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Q2. What is this Transformer safety parts
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Transformer safety parts include fuses, circuit breakers, and grounding systems.
• Fuses protect against overcurrent and short circuits.

• Circuit breakers protect against overloads and faults.

• Grounding systems prevent electrical shock and protect equipment.

• Other safety parts may include temperature sensors and pressure relief devices.
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Q3. Why use capacitor in working
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Capacitors are used to store and release electrical energy in circuits.
• Capacitors can filter out noise and stabilize voltage in power supplies.

• They can also be used in timing circuits and oscillators.

• Capacitors are commonly used in audio equipment to filter out unwanted frequencies.

• They can also be used in electric motors to improve power factor and efficiency.

• Capacitors are essential components in electronic devices a
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Q4. What Is the sunt relay and use
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A sun t relay is a type of time-delay relay used in electrical systems.
• It is used to control the operation of a circuit based on a time delay.

• It is commonly used in lighting systems to delay turning on or off.

• It can also be used in motor control circuits to prevent damage from sudden power surges.

• The delay time can be adjusted to suit the specific needs of the circuit.

• It works by using a small current to charge a capac...read more
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Q1. Many major under voltage
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Under voltage can cause major electrical problems.
• Under voltage can cause equipment damage and failure.

• It can also lead to power outages and disruptions.

• Proper monitoring and maintenance can prevent under voltage issues.

• Examples of under voltage problems include brownouts and voltage sags.
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