Linde India Diploma Trainee Engineer Interview Questions, Process, and Tips

Q1. Introduce your self to us
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Written aptitude test was taken. Difficulty level was moderate. Negative marking was there.

Q1. Draw the Oxygen atomic structure
Ans. 
Oxygen has 8 protons, 8 neutrons, and 8 electrons arranged in its atomic structure.
• Oxygen has an atomic number of 8, which means it has 8 protons.

• The atomic mass of Oxygen is approximately 16, so it has 8 neutrons.

• Oxygen has 8 electrons distributed in 2 electron shells, with 2 in the first shell and 6 in the second shell.
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Q2. Tell about specific density?
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Specific density is the ratio of the density of a substance to the density of a reference substance.
• Specific density is a dimensionless quantity.

• It is calculated by dividing the density of the substance by the density of the reference substance.

• Common reference substances for specific density include water and air.

• Specific density is used in various fields such as engineering, physics, and chemistry.
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Q1. Project electrical engineer
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Q2. Software related
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Q1. Why Conveyor use in Matterials Handling
Ans. 
Conveyors are used in materials handling to efficiently transport goods or materials from one place to another.
• Conveyors help in automating the transportation process, increasing efficiency and reducing manual labor.

• They can handle a wide range of materials, from small parts to heavy items.

• Conveyors can be customized to fit specific needs, such as incline or decline conveyors for elevation changes.

• Examples of conveyors...read more
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Q2. What is preventive maintenance
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Preventive maintenance is the practice of regularly inspecting, servicing, and replacing parts to prevent equipment failure.
• Regularly scheduled inspections and maintenance tasks are performed to prevent breakdowns

• Replacement of worn out parts before they fail to avoid costly repairs

• Helps in increasing the lifespan of equipment and reducing downtime

• Examples include changing oil in a car engine, cleaning air filters in H
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Q3. How to calculate Belt length
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Belt length can be calculated using the formula: L = 2C + (πD)
• Measure the distance around the pulleys (C)

• Measure the diameter of the larger pulley (D)

• Use the formula L = 2C + (πD) to calculate the belt length

• For example, if C = 30 inches and D = 10 inches, then L = 2(30) + (3.14)(10) = 60 + 31.4 = 91.4 inches
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Q4. Types of Pully used in any conveyor
Ans. 
Types of pulleys commonly used in conveyors include drive pulleys, idler pulleys, and snub pulleys.
• Drive pulleys are used to transmit power from the motor to the conveyor belt.

• Idler pulleys are used to support and guide the conveyor belt.

• Snub pulleys are used to increase the angle of wrap around the drive pulley to improve traction.

• Other types of pulleys may include bend pulleys, take-up pulleys, and wing pulleys.

• Diffe...read more
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Q5. Types of joint use in Engineering
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Various types of joints used in engineering include welded joints, bolted joints, riveted joints, and adhesive joints.
• Welded joints involve fusing two materials together using heat or pressure.

• Bolted joints use bolts and nuts to secure two materials together.

• Riveted joints involve using rivets to connect two materials.

• Adhesive joints use adhesives to bond materials together.
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Q1. For Oil &gas knowledge fo API 1104 ,B 31.8 , 31.8 ASME SEC IX AND NDT ASME SEC VI AND PROJECT PROCEDURE EXPERIENCE FOR GAS PIPELINE
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Q2. What is difference between psl 2 and psl 1 Which pipe used for gas pipeline
Ans. 
PSL 2 has stricter requirements than PSL 1. Gas pipelines use PSL 2 pipes.
• PSL 2 has higher minimum yield strength and stricter chemical composition requirements than PSL 1

• PSL 2 also has non-destructive inspection requirements

• Gas pipelines use PSL 2 pipes due to their higher strength and durability

• PSL 1 pipes are typically used for low-pressure applications
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Q1. Resume Related questions
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Q1. Depending upon ur experience
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Q2. Work related questions
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Q3. Principal of UT
Ans. 
UT stands for Ultrasonic Testing, a non-destructive testing method used in engineering.
• UT uses high frequency sound waves to detect flaws or defects in materials.

• It is commonly used in industries like aerospace, automotive, and manufacturing.

• UT can be used to inspect welds, pipelines, and structural components.

• The results of UT are displayed in a visual representation called a C-scan or B-scan.
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Just some aptitude questions and technical questions

Q1. Type of connections in steel ? Explain about them? Types of foundation in RCC? Lacing , Battening ? Flat slab?
Ans. 
Steel connections include bolted, welded, and riveted connections. RCC foundations can be shallow, deep, or pile foundations. Lacing and battening are used in steel structures for bracing. Flat slabs are a type of RCC slab without beams.
• Types of steel connections: bolted, welded, riveted

• Types of RCC foundations: shallow, deep, pile

• Lacing and battening used for bracing in steel structures

• Flat slabs are RCC slabs without
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Q1. Tell us about yourself ? Why mecon? Why to choose mecon? Projects of mecon
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