L&T Energy Hydrocarbon Lead Engineer Interview Questions and Answers

Q1. Could you provide an explanation of your current job profile?
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Basic structural knowledge required

Q1. What is mean by sc connection
Ans. 
SC connection refers to a type of fiber optic connector commonly used in networking.
• SC stands for Subscriber Connector or Standard Connector.

• It is a type of fiber optic connector with a push-pull locking mechanism.

• SC connectors are used in networking applications for connecting fiber optic cables.

• They are easy to install and provide reliable connections.

• SC connectors are commonly used in data centers, telecommunication...read more
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Q2. What is connection types
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Connection types refer to the different ways devices can connect to each other or to a network.
• Wired connections (e.g. Ethernet, USB)

• Wireless connections (e.g. Wi-Fi, Bluetooth)

• Cellular connections (e.g. 4G, 5G)

• Satellite connections

• Fiber optic connections
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Q1. 1. Simple asked about the Relay Co-Ordination
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Basic Mechanical Engineering, welding, GD n T etc

Q1. 1. Current job details 2. Engineering fundamentals 3. GD n T 4. Welding knowledge 5. Problem Solving skills
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Q2. 1. What are different kinds of weld and its applications. 2. What is stress, strain, torque, buoyancy etc
Ans. 
1. Different types of welds and their applications. 2. Stress, strain, torque, buoyancy, etc.
• Different types of welds include butt welds, fillet welds, lap welds, etc.

• Butt welds are used to join two pieces of metal together end-to-end, while fillet welds are used to join two pieces of metal together at right angles.

• Lap welds are used to join two pieces of metal together that overlap each other.

• Stress is the force per u...read more
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Solidworks Model test

Q1. What's Orifice metre
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An orifice meter is a device used to measure the flow rate of a fluid through a pipe by measuring the pressure drop across a constriction in the pipe.
• It consists of a flat plate with a hole in the center, placed perpendicular to the flow of fluid.

• The pressure drop across the orifice is proportional to the square of the flow rate.

• It is commonly used in industries such as oil and gas, chemical, and water treatment.

• Orific...read more
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Q2. How control valve sizing done
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Control valve sizing is done based on the process requirements and the characteristics of the fluid being controlled.
• Determine the required flow rate and pressure drop

• Select the appropriate valve type and style

• Calculate the valve size based on the flow coefficient (Cv) and the valve authority

• Consider factors such as noise, cavitation, and erosion

• Verify the selected valve can handle the process conditions and fluid prop
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