10+ Larsen & Toubro Limited Interview Questions and Answers

I primarily utilize programming languages such as Python, MATLAB, and C++ in my work as a Structural Engineer.

• Python

• MATLAB

• C++

Various types of foundations used in construction include shallow foundations, deep foundations, pile foundations, and mat foundations.

• Shallow foundations: Spread footings, mat foundations

• Deep foundations: Pile foundations, drilled shafts

• Pile foundations: Driven piles, helical piles

• Mat foundations: Used for large structures with uniform soil support

The interview questions cover topics such as grades of bolts, bearing types, types of oil and grease, iron carbon diagram, hydraulic systems, and hydraulic hose pipe nomenclature.

• HT bolt grades are determined based on the material and strength requirements, such as Grade 8.8 or Grade 10.9.

• Bearing definition: Bearings are components that support and guide moving parts, with types including ball bearings, roller bearings, and plain bearings.

• Types of oil: Engine oil, hydraulic o...read more

There are different grades of concrete used in construction based on strength and durability requirements.

• There are several types of grade of concrete such as M5, M7.5, M10, M15, M20, M25, M30, M35, M40, M45, M50, M55, M60, and M70.

• The grades are designated by the mix proportions of cement, sand, and aggregates.

• Higher grade concrete has higher strength and durability, but also requires more cement and aggregates.

• The grade of concrete to be used depends on the specific require...read more

Characteristics of cement include strength, durability, setting time, and composition.

• Strength: Cement provides the necessary strength for construction materials to hold together.

• Durability: Cement is resistant to weathering and chemical attacks, ensuring the longevity of structures.

• Setting time: Cement hardens and sets within a specific time frame, allowing for construction progress.

• Composition: Cement is typically composed of limestone, clay, and gypsum, which contribute to...read more

The type of bearing used in pallet car wheel is typically a ball bearing or roller bearing.

• Ball bearings are commonly used in pallet car wheels for smooth rotation.

• Roller bearings can also be used for heavy-duty applications.

• Some pallet car wheels may use tapered roller bearings for increased load capacity.

Power plant instrumentation involves measuring and controlling various parameters for efficient and safe plant operation.

• Types of sensors: Pressure, temperature, flow, and level sensors are crucial for monitoring plant operations.

• Control systems: Distributed Control Systems (DCS) and Programmable Logic Controllers (PLC) are used for automation.

• Safety instrumentation: Safety Instrumented Systems (SIS) ensure safe operation by automatically shutting down processes in emergencie...read more

The time needed to replace a pellet car can vary depending on factors such as size of the car, complexity of the replacement process, and availability of resources.

• Time needed can range from a few hours to a few days.

• Factors such as size of the car and complexity of the replacement process can impact the time required.

• Availability of resources like manpower and equipment can also affect the replacement time.

• For example, a small pellet car with a simple replacement process may...read more

The key performance indicator (KPI) for Production Shift Incharge includes monitoring the quality of sponge iron material.

• Regularly inspecting the sponge iron material for impurities and consistency

• Ensuring proper handling and storage of sponge iron material to maintain quality

• Implementing quality control measures to improve the overall material quality

• Collaborating with suppliers to address any issues with the sponge iron material

• Tracking and analyzing data on material quali...read more

There are several types of foundations used in civil engineering, including shallow foundations, deep foundations, and special foundations.

• Shallow foundations include spread footings, mat foundations, and slab-on-grade foundations.

• Deep foundations include pile foundations, drilled shafts, and caissons.

• Special foundations are used in unique situations, such as for bridges, high-rise buildings, or in areas with poor soil conditions.

There are mainly three types of beams: Simply supported beam, Cantilever beam, and Overhanging beam.

• Simply supported beam is supported at both ends and carries load in the middle.

• Cantilever beam is supported at one end and carries load at the other end.

• Overhanging beam has one or both ends extending beyond its supports.

AutoCAD can be used to estimate costing and create bar bending schedules for building plans.

• AutoCAD can be used to create detailed drawings of building plans, which can then be used to estimate the costing of materials and labor.

• Bar bending schedules (BBS) can also be generated using AutoCAD, which provides detailed information on the quantity and types of reinforcement bars needed for construction.

• By inputting accurate dimensions and material specifications into AutoCAD, eng...read more

Fe 500 is a grade of steel used in construction, with a minimum yield strength of 500 MPa.

• Fe 500 is a type of TMT (thermo-mechanically treated) steel used in construction

• It has a minimum yield strength of 500 MPa, making it suitable for structural applications

• Fe 500 steel bars are commonly used in reinforced concrete structures for their high strength and durability

Equipment efficiency is crucial for maximizing productivity and minimizing downtime.

• Regular maintenance schedules can help ensure equipment is operating at peak efficiency.

• Investing in newer, more efficient equipment can lead to cost savings in the long run.

• Monitoring key performance indicators (KPIs) can help identify areas for improvement in equipment efficiency.

Types of bolts include hex bolts, carriage bolts, and eye bolts. Grades range from 2 to 12, with higher grades indicating stronger bolts.

• Types of bolts: hex bolts, carriage bolts, eye bolts

• Grades range from 2 to 12

• Higher grades indicate stronger bolts

Bolt foundation is a type of shallow foundation used to support structures by transferring load to the soil through bolts.

• Bolt foundation is commonly used in situations where the soil is stable and can support the load of the structure.

• It consists of a series of bolts or rods that are drilled into the soil and connected to the structure's foundation.

• Bolt foundations are often used in conjunction with other types of foundations, such as spread footings or mat foundations, to p...read more

SAP integration is crucial for streamlining financial processes, improving efficiency, and ensuring accurate reporting.

• SAP integration allows for real-time financial data updates and reporting

• It helps in automating repetitive tasks, reducing errors and improving efficiency

• Integrating SAP with other systems can provide a holistic view of financial data

• It enables better decision-making by providing accurate and timely information

• Many companies require knowledge of SAP for finan...read more

Phosphorus procedure involves the determination of phosphorus content in a sample using various analytical techniques.

• Sample preparation involves digestion of the sample with acid

• Phosphorus can be determined using colorimetric methods or by ICP-OES

• Interference from other elements like iron and aluminum must be accounted for

• Phosphorus analysis is important in environmental monitoring and agricultural research