Indian Oil Corporation Operations Engineer Interview Questions and Answers

Q1. Why would you like to work with shell?
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Q2. Have you worked in any oil and gas facility before now?
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What I know about permit to work system

Q1. Explain your self and where did you working current in 2014
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Q2. Which gas can use for while hot/live tapping
Ans. 
Nitrogen gas is commonly used for hot/live tapping in mechanical engineering.
• Nitrogen gas is inert and non-reactive, making it safe to use in hot/live tapping processes.

• It helps to create a protective atmosphere to prevent explosions or fires.

• Nitrogen gas is readily available and cost-effective.

• Other gases like argon or carbon dioxide can also be used depending on the specific requirements.
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Q3. Which method can we follow for railway/road/river crossings
Ans. 
Various methods can be used for railway/road/river crossings depending on the location and other factors.
• Bridges can be built over the crossing

• Tunnels can be dug under the crossing

• Level crossings can be used for roads

• Flyovers can be constructed for roads

• Ferries can be used for river crossings

• Aqueducts can be built for waterways

• Location, traffic volume, and safety considerations must be taken into account when choosing
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Q4. Which procedure can follow for pipe lines welding while route and filling
Ans. 
The procedure for pipe lines welding while route and filling involves several steps.
• Clean the area to be welded thoroughly

• Tack weld the pipes together

• Weld the root pass

• Fill the remaining gap with weld metal

• Perform post-weld heat treatment if required

• Inspect the weld for defects
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Q5. Cross country pipeline code - Nitrogen
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Q6. Explain About RT, UT, and magnetic partials
Ans. 
RT, UT, and magnetic partials are non-destructive testing methods used in engineering.
• RT stands for Radiographic Testing and uses X-rays or gamma rays to inspect the internal structure of a material.

• UT stands for Ultrasonic Testing and uses high-frequency sound waves to detect flaws or defects in a material.

• Magnetic particle testing uses magnetic fields and iron particles to detect surface and slightly subsurface defec...read more
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What IS API 5L

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Q1. Asked questions related to Thermodynamics, Power plant and subject of choice
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Q1. I don't know because they never called me for interview
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Q2. And ambition box asking me again and again
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Q3. Please solve the problem
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It was of 6 sections and seperate timer for each section ,and the GET exam is for one and half hour.first 2 sections consists of pure mechanical in which first section is very eas but the second section is full of core problems .Third section is named as subject matter .The next 2 sections contains apptitude and the last section contains english

Q1. About distillation column heat exchanger vessel
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Q1. Personality test
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Q1. There question are in each domain of mechanical and it was online
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Q1. Why you want to join reliance Are you okay to work in maintenance field
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