Applus Velosi Senior Mechanical Technician Interview Questions and Answers

Q1. Centrifugal compressors troubleshooting and heat exchangers serving
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Q1. Detailed previous work experience
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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
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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
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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. 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. 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. 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
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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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