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HPCL-Mittal Energy Limited Instrumentation Commissioning Engineer Interview Questions, Process, and Tips

Updated 23 Sep 2021

HPCL-Mittal Energy Limited Instrumentation Commissioning Engineer Interview Experiences

1 interview found

I applied via Referral and was interviewed before Sep 2020. There were 4 interview rounds.

Interview Questionnaire 

17 Questions

  • Q1. What is PID control?
  • Ans. 

    PID control is a feedback control mechanism used in automation systems to regulate a process variable.

    • PID stands for Proportional-Integral-Derivative.

    • It continuously calculates an error value by comparing the desired setpoint with the actual process variable.

    • The controller then adjusts the control output based on the error value and the proportional, integral, and derivative gains.

    • Proportional control provides an outpu...

  • Answered by AI
  • Q2. Why we need PID control?
  • Ans. 

    PID control is necessary to maintain a desired setpoint and compensate for disturbances in a system.

    • PID control helps maintain stability and accuracy in a system

    • It adjusts the output based on the difference between the setpoint and actual value

    • It can compensate for disturbances such as changes in load or input

    • Examples include temperature control in HVAC systems and speed control in motors

  • Answered by AI
  • Q3. How you calibrate DV6200?
  • Ans. 

    DV6200 is calibrated using a multi-point calibration process.

    • Perform a zero calibration by disconnecting the sensor and setting the output to zero.

    • Perform a span calibration by applying a known input and adjusting the output to match.

    • Perform a linearity calibration by applying multiple inputs and verifying the output matches the expected values.

    • Record all calibration data and ensure it is within acceptable tolerances.

    • P...

  • Answered by AI
  • Q4. If PT of extruder package required to change how you will perform the task?
  • Ans. 

    If PT of extruder package required to change, I will follow the standard procedure for changing PT.

    • Refer to the manufacturer's manual for the correct procedure

    • Ensure that the system is depressurized and isolated before starting the work

    • Use appropriate tools and equipment to remove the old PT and install the new one

    • Perform leak testing and calibration after installation

    • Update the documentation and inform the relevant pe

  • Answered by AI
  • Q5. How many DI and DO loops are needed to control a HT motor?
  • Ans. 

    At least 2 DI and 1 DO loop are needed to control a HT motor.

    • DI loops are used for monitoring the motor's status and feedback signals.

    • DO loops are used for controlling the motor's speed and direction.

    • The number of loops required may vary depending on the specific motor and control system.

    • Additional loops may be needed for safety interlocks and alarms.

  • Answered by AI
  • Q6. What is confined space?
  • Ans. 

    Confined space refers to an area with limited access and ventilation, posing potential hazards to workers.

    • Examples include tanks, silos, sewers, and tunnels.

    • Workers entering confined spaces must follow strict safety protocols.

    • Hazards in confined spaces include lack of oxygen, toxic gases, and fire/explosion risks.

    • Proper training and equipment are necessary for working in confined spaces.

  • Answered by AI
  • Q7. What type of safety you should follow and suggest your team to follow for confined space entry?
  • Ans. 

    Follow OSHA guidelines for confined space entry and ensure proper ventilation, communication, and rescue procedures.

    • Conduct a thorough hazard assessment before entering the confined space

    • Ensure proper ventilation and air quality testing

    • Use appropriate personal protective equipment (PPE)

    • Establish communication procedures and have a standby person outside the confined space

    • Have a rescue plan in place and conduct regular ...

  • Answered by AI
  • Q8. How many types of flowers measuring equipment are available to messure the process flow?
  • Ans. 

    There are various types of flow measuring equipment available for measuring process flow.

    • Magnetic flow meters

    • Ultrasonic flow meters

    • Vortex flow meters

    • Coriolis flow meters

    • Differential pressure flow meters

    • Positive displacement flow meters

    • Thermal flow meters

  • Answered by AI
  • Q9. Tell the ideal gas equation?
  • Ans. 

    The ideal gas equation relates the pressure, volume, and temperature of an ideal gas.

    • The ideal gas equation is PV = nRT, where P is the pressure, V is the volume, n is the number of moles of gas, R is the ideal gas constant, and T is the temperature.

    • It describes the behavior of an ideal gas under various conditions.

    • The equation can be used to calculate any one of the variables if the others are known.

    • For example, if th...

  • Answered by AI
  • Q10. What do you mean by N in Ideal gas equation?
  • Ans. 

    N in Ideal gas equation represents the number of moles of gas.

    • N is the number of moles of gas in the system

    • It is a measure of the amount of gas present

    • N is directly proportional to the number of gas particles

    • Ideal gas equation is PV = nRT, where n is the number of moles of gas

    • N is usually measured in moles

  • Answered by AI
  • Q11. How many types of HMI you can handle?
  • Ans. 

    I can handle multiple types of HMI including SCADA, DCS, and PLC.

    • I am proficient in SCADA (Supervisory Control and Data Acquisition) systems.

    • I have experience with DCS (Distributed Control System) HMIs.

    • I am familiar with PLC (Programmable Logic Controller) HMIs.

    • I can work with various HMI software such as Wonderware, Ignition, and FactoryTalk.

    • I am capable of configuring and troubleshooting HMI systems.

    • I stay updated wi

  • Answered by AI
  • Q12. What do you mean by TBT?
  • Ans. 

    TBT stands for 'Tool Box Talk'.

    • TBT is a safety meeting held before starting a job or task.

    • It is a way to discuss potential hazards and safety procedures.

    • TBTs are usually short and focused on a specific topic.

    • They are important for promoting a safety culture in the workplace.

    • Examples of TBT topics include working at heights, electrical safety, and PPE use.

  • Answered by AI
  • Q13. How you may approach to solve the close tank level flactuation?
  • Ans. 

    To solve close tank level fluctuation, I would approach by identifying the root cause and implementing appropriate corrective measures.

    • Check for any leaks in the tank or piping system

    • Ensure proper calibration of level sensors

    • Verify the control system settings and adjust if necessary

    • Consider installing additional instrumentation such as a surge tank or pressure relief valve

    • Perform regular maintenance and inspections to

  • Answered by AI
  • Q14. How many types of orifice are available to messure DP of a process flow line?
  • Ans. 

    There are three types of orifice plates used to measure DP of a process flow line.

    • Concentric

    • Eccentric

    • Segmental

  • Answered by AI
  • Q15. What is the principal of measuring mass flow?
  • Ans. 

    Mass flow is measured based on the principle of conservation of mass and the relationship between flow rate, velocity, and cross-sectional area.

    • Mass flow can be measured using various techniques such as Coriolis flow meters, thermal mass flow meters, and differential pressure flow meters.

    • The principle of conservation of mass states that mass cannot be created or destroyed, only transferred or converted.

    • The relationship...

  • Answered by AI
  • Q16. How a vartex flow meter works
  • Ans. 

    A vortex flow meter measures fluid flow by detecting the frequency of vortices shed by a bluff body in the flow stream.

    • A bluff body is placed in the flow stream to create vortices.

    • The frequency of vortices is proportional to the flow rate.

    • The meter measures the frequency and calculates the flow rate.

    • Vortex flow meters are commonly used in steam, gas, and liquid applications.

  • Answered by AI
  • Q17. What is bernollies theoram?
  • Ans. 

    Bernoulli's theorem states that as the speed of a fluid increases, its pressure decreases.

    • Describes the relationship between fluid speed and pressure

    • Used in fluid dynamics and aerodynamics

    • Can be applied to various scenarios such as air flow over an airplane wing or water flow through a pipe

    • Formula: P + 1/2pv^2 + pgh = constant (where P is pressure, p is density, v is velocity, g is acceleration due to gravity, and h is

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Becically Petrochemical industry needs experienced worker, who already have sufficient experience in petrochemical industry, because this industry actually have highly hazadus environment so...

Interview questions from similar companies

Interview experience
4
Good
Difficulty level
Hard
Process Duration
2-4 weeks
Result
Selected Selected

I appeared for an interview before Mar 2024, where I was asked the following questions.

  • Q1. Learning from past companies.
  • Q2. 5 core tools of Quality.
  • Q3. IATF clauses for NPD.

Interview Preparation Tips

Interview preparation tips for other job seekers - Just prepare related to the CV.

I applied via Referral and was interviewed before Jul 2019. There was 1 interview round.

Interview Questionnaire 

1 Question

  • Q1. 1) Tell me about your self . 2) Explain your work experience. 3) project experience.

I applied via Campus Placement and was interviewed before Apr 2021. There were 3 interview rounds.

Round 1 - Aptitude Test 

Basic PCM

Round 2 - Technical 

(1 Question)

  • Q1. Control System PLC Industrial Instrumentation
Round 3 - HR 

(4 Questions)

  • Q1. Why should we hire you?
  • Ans. 

    I have the necessary skills, experience, and leadership qualities to excel in the role of Assistant Manager.

    • I have a proven track record of successfully managing teams and achieving targets.

    • I possess strong communication and interpersonal skills, which are essential for effectively leading and motivating a team.

    • I am highly organized and detail-oriented, ensuring efficient operations and problem-solving.

    • I am adept at an...

  • Answered by AI
  • Q2. Where do you see yourself in 5 years?
  • Ans. 

    In 5 years, I see myself as a successful Assistant Manager, leading a team and contributing to the growth of the company.

    • Leading a team of dedicated individuals

    • Implementing strategies to improve productivity and efficiency

    • Contributing to the growth and success of the company

    • Continuing to learn and develop new skills

    • Building strong relationships with colleagues and clients

  • Answered by AI
  • Q3. What are your strengths and weaknesses?
  • Ans. 

    My strengths include strong leadership skills, excellent communication abilities, and a knack for problem-solving. My weaknesses include a tendency to be overly critical of myself and a desire for perfection.

    • Strength: Strong leadership skills

    • Strength: Excellent communication abilities

    • Strength: Knack for problem-solving

    • Weakness: Overly critical of myself

    • Weakness: Desire for perfection

  • Answered by AI
  • Q4. Tell me about yourself.
  • Ans. 

    I am a highly motivated and experienced professional with a strong background in management and leadership.

    • Over 5 years of experience in management roles

    • Proven track record of successfully leading teams and achieving targets

    • Excellent communication and problem-solving skills

    • Strong organizational and time management abilities

    • Ability to adapt to changing environments and handle multiple tasks

    • Example: As a Manager at XYZ C...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Brush Up the basics. Focus on communication skill.
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Company Website and was interviewed before Sep 2022. There were 3 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Properly align and format text in your resume. A recruiter will have to spend more time reading poorly aligned text, leading to high chances of rejection.
View all tips
Round 2 - Technical 

(4 Questions)

  • Q1. About previous experience in industry
  • Q2. About Current company details
  • Q3. P&ID related questions
  • Q4. Troubleshooting and work nature
Round 3 - HR 

(1 Question)

  • Q1. Salary discussion, current environment related things compare to this industry.
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Recruitment Consulltant and was interviewed in Jun 2023. There were 5 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Technical 

(1 Question)

  • Q1. What is the process? Process flow diagram How to handle emergency situation? What are the safety precautions required?
  • Ans. 

    The process involves creating a process flow diagram, handling emergency situations, and following safety precautions.

    • Create a process flow diagram to visualize the steps involved in the assistant manager role.

    • Establish protocols for handling emergency situations such as fire, medical emergencies, or security threats.

    • Ensure all staff are trained on emergency procedures and have access to emergency contact information.

    • I...

  • Answered by AI
Round 3 - HR 

(1 Question)

  • Q1. Tell me about your? Compensation expected
  • Ans. 

    I am looking for a competitive salary based on my experience and qualifications.

    • I have researched the average salary range for Assistant Managers in this industry

    • I am open to discussing benefits and bonuses as part of the compensation package

    • I am confident in my abilities and believe I bring value to the team

  • Answered by AI
Round 4 - Technical 

(1 Question)

  • Q1. Reactor operation Dryer operation Pelletiser operation
Round 5 - HR 

(1 Question)

  • Q1. Tell me about yourself Compensation expected

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare well about process
And emergency situation control response
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
-

I applied via Campus Placement and was interviewed in Aug 2023. There was 1 interview round.

Round 1 - Technical 

(2 Questions)

  • Q1. How pumps work?
  • Ans. 

    Pumps are devices that use mechanical action to move fluids from one place to another.

    • Pumps work by creating a pressure difference to push fluids through a system.

    • They typically consist of an inlet, an outlet, and an impeller or rotor.

    • The impeller rotates, creating centrifugal force that pushes the fluid outwards.

    • Positive displacement pumps use reciprocating or rotary motion to move fluid in discrete volumes.

    • Examples o...

  • Answered by AI
  • Q2. Draw Stress Strain graph
  • Ans. 

    A stress-strain graph shows the relationship between stress and strain in a material.

    • The graph typically has stress on the y-axis and strain on the x-axis.

    • It starts with a linear elastic region where stress is directly proportional to strain.

    • Beyond the elastic limit, the material enters the plastic region where permanent deformation occurs.

    • The graph may show a yield point, ultimate tensile strength, and fracture point.

    • ...

  • Answered by AI
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I appeared for an interview before Mar 2023, where I was asked the following questions.

  • Q1. Operation Related Questions in power plant
  • Q2. Water Chemistry
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
6-8 weeks
Result
Selected Selected

I applied via Recruitment Consulltant and was interviewed before May 2023. There were 3 interview rounds.

Round 1 - Technical 

(1 Question)

  • Q1. Pumps,valves related
Round 2 - HR 

(2 Questions)

  • Q1. Nominal questions
  • Q2. Why I am willing to join PCBL
Round 3 - Technical 

(1 Question)

  • Q1. Pumps,valves ,masurements
Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
2-4 weeks
Result
No response

I applied via Approached by Company and was interviewed before Jan 2022. There were 2 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Technical 

(3 Questions)

  • Q1. Questions about electrical maintenance and about power plant also was aks about transformer,Generator,motor,vfd,vcb/acb breaker maintenance.Also about during work safety and pwt.
  • Q2. Why vfd use in power plant?
  • Ans. 

    VFDs are used in power plants to control the speed and torque of electric motors, resulting in energy savings and improved efficiency.

    • VFD stands for Variable Frequency Drive.

    • VFDs are used to control the speed of electric motors by varying the frequency of the electrical supply.

    • By adjusting the motor speed to match the required load, VFDs help in saving energy and reducing wear and tear on equipment.

    • VFDs also provide so...

  • Answered by AI
  • Q3. Why motor rpm is 1440 not 1500?
  • Ans. 

    Motor rpm is 1440 instead of 1500 due to the frequency of the power supply.

    • Motor rpm is determined by the frequency of the power supply.

    • In many countries, the standard frequency of the power supply is 50 Hz.

    • The synchronous speed of a motor is determined by the formula: (120 x frequency) / number of poles.

    • For a 4-pole motor and a 50 Hz power supply, the synchronous speed is 1500 rpm.

    • However, due to slip, the actual spee...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - I was given interview with good communication and technical skills.

HPCL-Mittal Energy Limited Interview FAQs

What are the top questions asked in HPCL-Mittal Energy Limited Instrumentation Commissioning Engineer interview?

Some of the top questions asked at the HPCL-Mittal Energy Limited Instrumentation Commissioning Engineer interview -

  1. How you may approach to solve the close tank level flactuati...read more
  2. If PT of extruder package required to change how you will perform the ta...read more
  3. How many types of orifice are available to messure DP of a process flow li...read more

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