L&T Defence Interview Questions, Process, and Tips

Normal test basic test very easy just for formalities purpose only.

Q1. About some from you're diploma subjects important topics tobe asked they don't expect deep knowledge but atleast basic information
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Q2. Ask about your favourite subject and then asks questions on some of important topic especially from BEE and SOM
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I joined as GET and aptitude test was seemed easy.

Q1. What is your favorite subject?
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Q2. What is critical speed?
Ans. 
Critical speed is the speed at which a rotating object experiences resonance and begins to vibrate uncontrollably.
• It is the speed at which the natural frequency of the object matches the frequency of its rotation.

• It can cause damage to the object and surrounding equipment.

• It is important to calculate critical speed in order to avoid resonance and vibration issues.

• Examples include turbine rotors, drive shafts, and centr
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Q3. How do u design a shaft?
Ans. 
Designing a shaft involves determining its dimensions, material, and manufacturing process.
• Determine the required torque and power to be transmitted

• Select appropriate material based on strength, weight, and cost

• Calculate the shaft diameter and length based on the torque and bending stress

• Choose a manufacturing process such as forging, casting, or machining

• Consider factors such as surface finish, tolerances, and heat tr...read more
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Q4. Which one is better for good weight to strength ratio? Hollow or solid?
Ans. 
Hollow structures have a better weight to strength ratio than solid structures.
• Hollow structures are lighter than solid structures of the same material and size.

• Hollow structures distribute weight more evenly, reducing stress points.

• Hollow structures are often used in aerospace and automotive industries for their weight-saving properties.

• Solid structures may be stronger in certain applications, such as load-bearing col
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Q5. What is equation of Castigliano's theorem?
Ans. 
Castigliano's theorem relates the partial derivative of the strain energy to the applied loads.
• Castigliano's theorem is used to determine the deflection of a structure under a given load.

• It is based on the principle of minimum potential energy.

• The theorem states that the partial derivative of the strain energy with respect to a force is equal to the displacement caused by that force.

• It can be used to solve for unknown ...read more
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Q1. Are you ready to relocate across India?
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Personal information and how about ur journey of the course like what u do in ur college like this

Another general knowledge questions

Q1. HR interview like tell about u & what's ur opinion about our company like that
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Q2. More of the HR behavior like a attitude.. but l&t HR behaves like friendly and handle with Care
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Q1. Critical Thinking
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Q2. Decision making
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Q3. Sub ordinate devlopment
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Q4. Team building strength
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Q1. More about mechanical
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Q2. Decission making
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