ADNOC Senior Mechanical Technician Interview Questions and Answers

Q1. What's automobile industry
Ans. 
The automobile industry is a sector that designs, manufactures, and sells motor vehicles, including cars, trucks, and motorcycles.
• Involves the production of vehicles such as cars, trucks, and motorcycles

• Includes designing, manufacturing, and selling of motor vehicles

• Incorporates various components like engines, chassis, and electrical systems

• Involves research and development for innovation and improvement

• Global industr...read more
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Q2. How maintain commercial vehicle sigment
Ans. 
Maintaining commercial vehicles involves regular inspections, servicing, and repairs to ensure optimal performance and safety.
• Perform regular inspections of the vehicle's engine, brakes, tires, and other critical components.

• Follow manufacturer's recommended maintenance schedule for oil changes, filter replacements, and other routine tasks.

• Address any issues or malfunctions promptly to prevent further damage and ensure ...read more
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Q3. Automobile is a self-propelled vehicle which is used to carry the goods and passenger on the ground
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Q1. What's internal combustion engine
Ans. 
An internal combustion engine is a type of engine that generates power by burning fuel inside the engine itself.
• Uses combustion of fuel within the engine to generate power

• Commonly used in vehicles such as cars, motorcycles, and trucks

• Consists of cylinders, pistons, spark plugs, and a fuel delivery system

• Two main types are gasoline and diesel engines
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Q2. How work internal combustion engine
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Internal combustion engines work by burning fuel inside a combustion chamber to create controlled explosions that drive pistons and generate mechanical power.
• Fuel and air mixture is ignited inside the combustion chamber

• The resulting explosion pushes the piston down, converting the energy into mechanical motion

• The piston is connected to a crankshaft, which converts the linear motion into rotational motion

• The rotational ...read more
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Q1. Salary and packages and past Experience
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Q2. Why you want to join our company Why you leaving previous company What was your salary package and leave cycle How do you know about our company What is your expection When you are going to join
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Q1. Basic Question related to mechanical basics
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Q1. Tell me about yourself
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Q2. Strength & Weakness, Where you see 5 years from now.
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Q1. Projects in CV, welding, GD&T
Ans. 
I have experience working on projects involving welding and applying GD&T principles.
• Completed a project where I designed and welded a steel frame for a small vehicle

• Utilized GD&T principles to ensure precise measurements and tolerances in a project involving machining parts for an assembly line

• Familiar with interpreting engineering drawings and applying GD&T symbols accurately
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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

What is ASME B 16.5

What is ASME IX

Whatbis ASME B 31.4

Q1. What is yield strength and ultimate strength
Ans. 
Yield strength is the stress at which a material begins to deform plastically, while ultimate strength is the maximum stress a material can withstand before breaking.
• Yield strength is the point where a material starts to deform plastically, meaning it will not return to its original shape once the stress is removed.

• Ultimate strength is the maximum stress a material can withstand before it breaks or fractures.

• Yield stre...read more
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Q2. All FEA related questions
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Q3. All basic SOM and SHEET METAL RELATED QUESTIONS
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