HPCL-Mittal Energy Limited Instrument Engineer Interview Questions and Answers for Experienced

Q1. What about previous company.
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Q2. What about job work dicusss
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He ask My study details and in will tell Complete B.com.

Q1. Next ask to Your backround job Details.
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Q1. He ask family backround Details.
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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.
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Q2. Why vfd use in power plant?
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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...read more
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Q3. Why motor rpm is 1440 not 1500?
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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...read more
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Q1. About previous experience in industry
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Q2. About Current company details
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Q3. P&ID related questions
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Q4. Troubleshooting and work nature
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Q1. Salary discussion, current environment related things compare to this industry.
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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...read more
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Q1. Tell me about your? Compensation expected
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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
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Q1. Reactor operation Dryer operation Pelletiser operation
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Q1. Tell me about yourself Compensation expected
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Q1. Operation Related Questions in power plant
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Q2. Water Chemistry
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Q1. Pumps,valves related
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Q1. Nominal questions
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Q2. Why I am willing to join PCBL
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Q1. Pumps,valves ,masurements
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Q1. How many tubes are there in APH
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Q2. How you change oil pump?
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To change an oil pump, you need to drain the oil, remove the old pump, install the new pump, and refill with fresh oil.
• Drain the oil from the engine

• Remove the old oil pump

• Install the new oil pump

• Refill the engine with fresh oil
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