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Larsen & Toubro Limited Demonstrator Interview Questions and Answers

Updated 12 Oct 2024

10 Interview questions

A Demonstrator was asked 8mo ago
Q. What is the significance of the water-cement ratio in concrete mix design?
Ans. 

Water-cement ratio in concrete mix design affects the strength, durability, workability, and permeability of the concrete.

  • Water-cement ratio determines the amount of water needed to fully hydrate the cement in the concrete mix.

  • A lower water-cement ratio leads to higher strength and durability of the concrete.

  • An excessive water-cement ratio can result in lower strength, increased permeability, and reduced durabilit...

A Demonstrator was asked 8mo ago
Q. What is the difference between a one-way slab and a two-way slab in terms of design and load distribution?
Ans. 

One-way slabs distribute load primarily in one direction, while two-way slabs distribute load in two directions.

  • One-way slabs are designed to span in only one direction, typically supported on two opposite sides. They distribute load primarily in one direction.

  • Two-way slabs are designed to span in two directions, supported on all four sides. They distribute load in both directions, providing more balanced load dis...

Demonstrator Interview Questions Asked at Other Companies

Q1. How do you calculate the quantity of cement, sand, and aggregates ... read more
Q2. What are the different types of retaining walls and their applica ... read more
Q3. What is the difference between a one-way slab and a two-way slab ... read more
Q4. How do you ensure the safety and stability of scaffolding in high ... read more
Q5. What are the primary causes of cracks in concrete structures, and ... read more
A Demonstrator was asked 8mo ago
Q. What are the different types of retaining walls and their applications in civil engineering projects?
Ans. 

Different types of retaining walls include gravity walls, cantilever walls, sheet pile walls, and anchored walls.

  • Gravity walls rely on their weight to resist pressure from soil behind them.

  • Cantilever walls have a base slab and a stem that leans back into the retained soil.

  • Sheet pile walls are made of steel, vinyl, or wood planks that are driven into the ground.

  • Anchored walls use cables or other stays anchored in t...

A Demonstrator was asked 8mo ago
Q. What are the primary causes of cracks in concrete structures, and how can they be prevented?
Ans. 

Primary causes of cracks in concrete structures include shrinkage, thermal changes, overloading, and poor construction practices.

  • Shrinkage: Concrete shrinks as it cures, leading to cracks if not properly controlled.

  • Thermal changes: Temperature fluctuations can cause concrete to expand and contract, leading to cracks.

  • Overloading: Excessive weight or stress on a concrete structure can cause it to crack.

  • Poor construc...

What people are saying about Larsen & Toubro Limited

View All
spaciousmocha
Verified Icon
2w
works at
Larsen & Toubro Limited
Electrical & Automation maintenance
Job referral required At Renew power dholera I had 6 years of experience in electrical and automation maintenance.
Got a question about Larsen & Toubro Limited?
Ask anonymously on communities.
A Demonstrator was asked 8mo ago
Q. Explain the working principle of a cantilever beam and where it is typically used in construction.
Ans. 

A cantilever beam is a structural element supported at only one end, with the other end free to deflect. It is commonly used in construction for balconies, bridges, and canopies.

  • A cantilever beam is a structural element that is fixed at one end and free to deflect at the other end

  • It is commonly used in construction for balconies, bridges, and canopies

  • The working principle involves the transfer of load from the fre...

A Demonstrator was asked 8mo ago
Q. How do you ensure the safety and stability of scaffolding in high-rise construction projects?
Ans. 

Safety and stability of scaffolding in high-rise construction projects are ensured through proper inspection, training, and adherence to regulations.

  • Regular inspections of scaffolding to identify any defects or weaknesses

  • Ensuring scaffolding is set up by trained and certified professionals

  • Following safety regulations and guidelines for scaffolding usage

  • Using high-quality materials for scaffolding construction

  • Imple...

A Demonstrator was asked 8mo ago
Q. Explain the concept of moment of inertia and its significance in structural engineering.
Ans. 

Moment of inertia is a measure of an object's resistance to changes in its rotation. It is crucial in structural engineering for analyzing the stiffness and stability of structures.

  • Moment of inertia quantifies how mass is distributed around an axis of rotation

  • It plays a key role in determining the bending and deflection of beams

  • Higher moment of inertia indicates greater resistance to bending and deformation

  • Used in...

Are these interview questions helpful?
A Demonstrator was asked 8mo ago
Q. What is the difference between reinforced concrete and prestressed concrete?
Ans. 

Reinforced concrete has steel bars embedded within the concrete to provide additional strength, while prestressed concrete has tensioned steel tendons to actively counteract the concrete's natural tendency to crack under load.

  • Reinforced concrete uses passive reinforcement in the form of steel bars or mesh, while prestressed concrete uses active reinforcement in the form of tensioned steel tendons.

  • In reinforced con...

A Demonstrator was asked 8mo ago
Q. How do you calculate the quantity of cement, sand, and aggregates required for 1 cubic meter of concrete?
Ans. 

The quantity of cement, sand, and aggregates for 1 cubic meter of concrete can be calculated by using the mix design ratios.

  • Calculate the total volume of concrete needed (1 cubic meter).

  • Determine the mix design ratios for the concrete (e.g. 1:2:4 for cement:sand:aggregates).

  • Calculate the quantity of each material by multiplying the volume by the ratio (e.g. for 1:2:4, 1/7 cubic meters of cement, 2/7 cubic meters o...

A Demonstrator was asked 8mo ago
Q. Describe the process of a slump test and its importance in concrete work.
Ans. 

Slump test is a method to measure the consistency of concrete mix before it sets.

  • Process involves filling a mold with concrete, then removing the mold and measuring the amount of slump or settlement

  • Importance lies in ensuring the concrete mix has the right consistency for proper construction

  • Results of the test help determine if more water or additives are needed to achieve desired strength and workability

Larsen & Toubro Limited Demonstrator Interview Experiences

1 interview found

Demonstrator Interview Questions & Answers

user image Anonymous

posted on 16 Nov 2023

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Technical 

(10 Questions)

  • Q1. What is the difference between a one-way slab and a two-way slab in terms of design and load distribution?
  • Ans. 

    One-way slabs distribute load primarily in one direction, while two-way slabs distribute load in two directions.

    • One-way slabs are designed to span in only one direction, typically supported on two opposite sides. They distribute load primarily in one direction.

    • Two-way slabs are designed to span in two directions, supported on all four sides. They distribute load in both directions, providing more balanced load distribu...

  • Answered by AI
  • Q2. Explain the concept of moment of inertia and its significance in structural engineering
  • Ans. 

    Moment of inertia is a measure of an object's resistance to changes in its rotation. It is crucial in structural engineering for analyzing the stiffness and stability of structures.

    • Moment of inertia quantifies how mass is distributed around an axis of rotation

    • It plays a key role in determining the bending and deflection of beams

    • Higher moment of inertia indicates greater resistance to bending and deformation

    • Used in calc...

  • Answered by AI
  • Q3. What is the difference between reinforced concrete and prestressed concrete?
  • Ans. 

    Reinforced concrete has steel bars embedded within the concrete to provide additional strength, while prestressed concrete has tensioned steel tendons to actively counteract the concrete's natural tendency to crack under load.

    • Reinforced concrete uses passive reinforcement in the form of steel bars or mesh, while prestressed concrete uses active reinforcement in the form of tensioned steel tendons.

    • In reinforced concrete...

  • Answered by AI
  • Q4. How do you calculate the quantity of cement, sand, and aggregates required for 1 cubic meter of concrete?
  • Ans. 

    The quantity of cement, sand, and aggregates for 1 cubic meter of concrete can be calculated by using the mix design ratios.

    • Calculate the total volume of concrete needed (1 cubic meter).

    • Determine the mix design ratios for the concrete (e.g. 1:2:4 for cement:sand:aggregates).

    • Calculate the quantity of each material by multiplying the volume by the ratio (e.g. for 1:2:4, 1/7 cubic meters of cement, 2/7 cubic meters of san...

  • Answered by AI
  • Q5. Describe the process of a slump test and its importance in concrete work.
  • Ans. 

    Slump test is a method to measure the consistency of concrete mix before it sets.

    • Process involves filling a mold with concrete, then removing the mold and measuring the amount of slump or settlement

    • Importance lies in ensuring the concrete mix has the right consistency for proper construction

    • Results of the test help determine if more water or additives are needed to achieve desired strength and workability

  • Answered by AI
  • Q6. What are the primary causes of cracks in concrete structures, and how can they be prevented?
  • Ans. 

    Primary causes of cracks in concrete structures include shrinkage, thermal changes, overloading, and poor construction practices.

    • Shrinkage: Concrete shrinks as it cures, leading to cracks if not properly controlled.

    • Thermal changes: Temperature fluctuations can cause concrete to expand and contract, leading to cracks.

    • Overloading: Excessive weight or stress on a concrete structure can cause it to crack.

    • Poor construction ...

  • Answered by AI
  • Q7. Explain the working principle of a cantilever beam and where it is typically used in construction.
  • Ans. 

    A cantilever beam is a structural element supported at only one end, with the other end free to deflect. It is commonly used in construction for balconies, bridges, and canopies.

    • A cantilever beam is a structural element that is fixed at one end and free to deflect at the other end

    • It is commonly used in construction for balconies, bridges, and canopies

    • The working principle involves the transfer of load from the free end...

  • Answered by AI
  • Q8. What is the significance of water-cement ratio in concrete mix design?
  • Ans. 

    Water-cement ratio in concrete mix design affects the strength, durability, workability, and permeability of the concrete.

    • Water-cement ratio determines the amount of water needed to fully hydrate the cement in the concrete mix.

    • A lower water-cement ratio leads to higher strength and durability of the concrete.

    • An excessive water-cement ratio can result in lower strength, increased permeability, and reduced durability.

    • Pro...

  • Answered by AI
  • Q9. How do you ensure the safety and stability of scaffolding in high-rise construction projects?
  • Ans. 

    Safety and stability of scaffolding in high-rise construction projects are ensured through proper inspection, training, and adherence to regulations.

    • Regular inspections of scaffolding to identify any defects or weaknesses

    • Ensuring scaffolding is set up by trained and certified professionals

    • Following safety regulations and guidelines for scaffolding usage

    • Using high-quality materials for scaffolding construction

    • Implementi...

  • Answered by AI
  • Q10. What are the different types of retaining walls and their applications in civil engineering projects?
  • Ans. 

    Different types of retaining walls include gravity walls, cantilever walls, sheet pile walls, and anchored walls.

    • Gravity walls rely on their weight to resist pressure from soil behind them.

    • Cantilever walls have a base slab and a stem that leans back into the retained soil.

    • Sheet pile walls are made of steel, vinyl, or wood planks that are driven into the ground.

    • Anchored walls use cables or other stays anchored in the ro...

  • Answered by AI

Interview questions from similar companies

I applied via Naukri.com and was interviewed before Aug 2021. There were 3 interview rounds.

Round 1 - Technical 

(1 Question)

  • Q1. Very basic stuff about SAP SD
Round 2 - Behavioral 

(1 Question)

  • Q1. Deep dive into overall work experience and checked feasibility whether you can work and relocate to Mumbai
Round 3 - HR 

(1 Question)

  • Q1. If you give them little room then they will convert that into an opportunity and bargain with you. Ask them about the variable component because they will not tell you and it will have great impact on in-h...

Interview Preparation Tips

Interview preparation tips for other job seekers - Generic interview process but don't expect much as they want to get an employee with lowest compensation possible.

Demonstrator Interview Questions Asked at Other Companies

Q1. How do you calculate the quantity of cement, sand, and aggregates ... read more
Q2. What are the different types of retaining walls and their applica ... read more
Q3. What is the difference between a one-way slab and a two-way slab ... read more
Q4. How do you ensure the safety and stability of scaffolding in high ... read more
Q5. What are the primary causes of cracks in concrete structures, and ... read more
Interview experience
4
Good
Difficulty level
Hard
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Recruitment Consulltant and was interviewed before May 2023. There was 1 interview round.

Round 1 - Technical 

(1 Question)

  • Q1. What is class type 22
  • Ans. 

    Class type 22 refers to a specific category or classification within a system or framework.

    • Class type 22 may refer to a specific type of product or service offered by a company.

    • It could also be a classification used in a particular industry or field.

    • In some cases, class type 22 may be a code or identifier used for organizational purposes.

  • Answered by AI

Consultant Interview Questions & Answers

TCE user image Abhishek Devkar

posted on 12 Jun 2025

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
4-6 weeks
Result
Selected Selected

I appeared for an interview before Jun 2024, where I was asked the following questions.

  • Q1. What is the IS code for tiles?
  • Ans. 

    The IS code for tiles is IS 15622:2006, which specifies standards for ceramic tiles used in construction.

    • IS 15622:2006 covers specifications for ceramic tiles.

    • It includes guidelines for dimensions, surface quality, and performance.

    • The code applies to various types of tiles, including glazed and unglazed.

    • Example: Vitrified tiles are also covered under this standard.

  • Answered by AI
  • Q2. What are the different types of tests conducted in tile?
  • Ans. 

    Various tests for tiles assess durability, water absorption, slip resistance, and aesthetic quality.

    • Water Absorption Test: Measures how much water a tile can absorb, indicating its porosity.

    • Slip Resistance Test: Evaluates the friction of a tile surface to prevent slips, often using the Pendulum Test.

    • Breaking Strength Test: Determines the load a tile can withstand before breaking, ensuring durability.

    • Frost Resistance Te...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Please refrain from applying for the consultant position, as only a 3% to 7% salary increment is available, along with numerous responsibilities assigned by the DPM.

What people are saying about Larsen & Toubro Limited

View All
spaciousmocha
Verified Icon
2w
works at
Larsen & Toubro Limited
Electrical & Automation maintenance
Job referral required At Renew power dholera I had 6 years of experience in electrical and automation maintenance.
Got a question about Larsen & Toubro Limited?
Ask anonymously on communities.

I applied via Referral and was interviewed in Feb 2022. There were 2 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Technical 

(2 Questions)

  • Q1. Piperack tier 1 height?
  • Ans. 

    The height of Piperack tier 1 depends on various factors such as the size of the pipes and the distance between them.

    • The height of Piperack tier 1 can range from 3 to 6 meters.

    • The height is determined by the size of the pipes and the distance between them.

    • The height also depends on the weight of the pipes and the load they can bear.

    • The height may vary based on the location and the purpose of the Piperack.

    • Consulting the...

  • Answered by AI
  • Q2. Codes and standards?
  • Ans. 

    Codes and standards are guidelines and regulations that ensure safety, quality, and consistency in various industries.

    • Codes and standards are developed by industry organizations, government agencies, and professional associations.

    • They cover a wide range of topics such as building codes, electrical codes, safety standards, and environmental regulations.

    • Compliance with codes and standards is often mandatory and failure t...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Revise basics, they don't go in detail much

I applied via Naukri.com and was interviewed in Jun 2021. There were 3 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. About road work, Building Construction and all types quality related questions.

Interview Preparation Tips

Interview preparation tips for other job seekers - Please prepare yourself as per your working experience with analysis of IS codes...

I appeared for an interview in Sep 2021.

Interview Questionnaire 

1 Question

  • Q1. They basically ask about your job profile to match their requirements.

Interview Preparation Tips

Interview preparation tips for other job seekers - Be confident about what learned from your experience
Are these interview questions helpful?
Interview experience
1
Bad
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Don’t add your photo or details such as gender, age, and address in your resume. These details do not add any value.
View all tips
Round 2 - Technical 

(1 Question)

  • Q1. Technical, personal questions
Round 3 - HR 

(1 Question)

  • Q1. Personal questions , about experience

Interview Preparation Tips

Interview preparation tips for other job seekers - Not bad
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - HR 

(1 Question)

  • Q1. Comfortable for job location and salary structure required
Round 3 - Technical 

(1 Question)

  • Q1. What kind of job experience you have

Interview Preparation Tips

Interview preparation tips for other job seekers - No comments
Interview experience
2
Poor
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Walk-in and was interviewed before Oct 2022. There were 4 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Double-check your resume for any spelling mistakes. The recruiter may consider spelling mistakes as careless behavior or poor communication skills.
View all tips
Round 2 - Technical 

(1 Question)

  • Q1. Basicaly ur experience and some topics of mechanical engineering
Round 3 - vertical interview 

(1 Question)

  • Q1. Basicaly above the experience
Round 4 - HR 

(1 Question)

  • Q1. Negotiation for salary and family background

Interview Preparation Tips

Interview preparation tips for other job seekers - for experience persion not worried because questions comes only practical work

Larsen & Toubro Limited Interview FAQs

How many rounds are there in Larsen & Toubro Limited Demonstrator interview?
Larsen & Toubro Limited interview process usually has 2 rounds. The most common rounds in the Larsen & Toubro Limited interview process are Resume Shortlist and Technical.
How to prepare for Larsen & Toubro Limited Demonstrator interview?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at Larsen & Toubro Limited. The most common topics and skills that interviewers at Larsen & Toubro Limited expect are Manual Testing.
What are the top questions asked in Larsen & Toubro Limited Demonstrator interview?

Some of the top questions asked at the Larsen & Toubro Limited Demonstrator interview -

  1. What is the difference between a one-way slab and a two-way slab in terms of de...read more
  2. What are the different types of retaining walls and their applications in civil...read more
  3. How do you calculate the quantity of cement, sand, and aggregates required for ...read more

Tell us how to improve this page.

Overall Interview Experience Rating

5/5

based on 1 interview experience

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Larsen & Toubro Limited Demonstrator Salary
based on 6 salaries
₹3 L/yr - ₹3.6 L/yr
65% less than the average Demonstrator Salary in India
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