Larsen & Toubro Limited Mechanical Engineer Interview Questions, Process, and Tips

Q1. Is there a vacancy available for mechanical engineering positions?
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Q2. What is the salary range for this position?
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Q1. What is the viscosity?
Ans. 
Viscosity is a measure of a fluid's resistance to flow.
• Viscosity is the internal friction of a moving fluid.

• It is a measure of how thick or thin a fluid is.

• Higher viscosity fluids flow more slowly than lower viscosity fluids.

• Water has a lower viscosity compared to honey or molasses.
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Q1. Negotiable round
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Basic aptitude test.

Discussion for general awareness and skills

Q1. What is first angle projection
Ans. 
First angle projection is a method of creating engineering drawings where the object is projected onto a plane in front of it.
• In first angle projection, the object is placed in the first quadrant of the viewing plane.

• The object is projected onto the plane from the perspective of the object looking towards the plane.

• Commonly used in Europe and Asia, while third angle projection is more common in the United States.

• Helps ...read more
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Q2. First law of thermodynamics
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The first law of thermodynamics states that energy cannot be created or destroyed, only transferred or converted.
• Energy can be transferred between systems or converted from one form to another.

• The total energy in a closed system remains constant.

• Mathematically expressed as: ΔU = Q - W, where ΔU is the change in internal energy, Q is heat added to the system, and W is work done by the system.

• Example: When a gas is compr...read more
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Q3. What is entropy
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Entropy is a measure of disorder or randomness in a system.
• Entropy is a thermodynamic property that increases with the amount of disorder in a system.

• It is a measure of the unavailable energy in a closed thermodynamic system that is also usually considered to be a measure of the system's disorder.

• Entropy can be thought of as a measure of the number of specific ways in which a system may be arranged, often interpreted a...read more
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