30+ GAMMON INDIA Interview Questions and Answers

Comprehensive strength of OPC ranges from 33-53 MPa at 28 days of curing after casting.

• OPC has high compressive strength due to its chemical composition

• It is commonly used in construction for its durability and strength

• The strength of OPC increases with time and proper curing

• Compressive strength is measured in MPa

• OPC has a comprehensive strength ranging from 33-53 MPa at 28 days of curing after casting

The point where the shear force is zero is called the point of contraflexure.

• Point of contraflexure is the point where bending moment changes sign.

• It is the point where the bending moment is maximum.

• It occurs in a beam when the shear force changes sign.

• It is important to determine the point of contraflexure in order to design a beam that can withstand the loads applied to it.

The specific gravity of soil particles is the ratio of the weight of a given volume of soil to the weight of an equal volume of distilled water.

• Specific gravity is an important property of soil that helps in determining its suitability for various engineering applications.

• It is used to calculate the void ratio, porosity, and degree of saturation of soil.

• The specific gravity of soil particles is affected by factors such as mineral composition, texture, and degree of weathering...read more

The water absorption capacity of coarse aggregate is 0.5-1%.

• Water absorption capacity is the amount of water that can be absorbed by the aggregate.

• Coarse aggregates are larger than 4.75mm in size.

• Water absorption capacity affects the strength and durability of concrete.

• Examples of coarse aggregates include gravel, crushed stone, and slag.

Prestressed concrete is better than normal RCC due to its higher strength, durability, and reduced cracking.

• Prestressed concrete has higher strength and load-carrying capacity compared to normal reinforced concrete.

• It offers improved durability and resistance to environmental factors such as corrosion.

• Prestressed concrete reduces cracking and deflection under load, enhancing structural integrity.

• It allows for longer spans and thinner sections, resulting in cost savings and in...read more

The most used types of support are roller, pinned, and fixed.

• Roller supports allow for movement in one direction while restricting movement in other directions.

• Pinned supports allow for rotation at the joint but restrict translation.

• Fixed supports restrict both rotation and translation.

• The type of support used depends on the specific engineering application.

• For example, roller supports are commonly used in bridges to allow for thermal expansion and contraction.

• Pinned supports...read more

The steel is placed in the SSB and cantilever beam to provide reinforcement and increase structural strength.

• Steel reinforcement is typically placed in the tension zone of the SSB and cantilever beam.

• The steel bars are positioned parallel to the axis of the beam to resist tensile forces.

• The placement of steel bars should follow the design specifications and structural engineering principles.

• In SSB, steel bars are commonly placed in the bottom half of the beam to counteract be...read more

The width of a highway for one line is typically 3.75 meters.

• The width of a highway can vary depending on the number of lanes and the location.

• In the US, the standard width for a single lane highway is 3.7 meters.

• In Europe, the standard width for a single lane highway is 3.5 meters.

• The width of a highway is important for safety and traffic flow.

• Wider highways can accommodate more traffic and reduce congestion.

PCC and RCC are different types of concrete used in construction.

• PCC stands for Plain Cement Concrete and is used for non-structural components like flooring, leveling, etc.

• RCC stands for Reinforced Cement Concrete and is used for structural components like beams, columns, slabs, etc.

• PCC does not contain any reinforcement while RCC has steel reinforcement to enhance its strength and durability.

• PCC has a lower strength compared to RCC.

• Example: PCC is commonly used for construc...read more

Creep, hogging, and sagging are terms used in engineering to describe different types of structural deformations.

• Creep refers to the gradual deformation of a material under a constant load over time.

• Hogging is a term used to describe the downward curvature of a beam or structure in the middle, caused by excessive load on the ends.

• Sagging is the opposite of hogging, where the beam or structure curves upward in the middle due to excessive load on the center.

• These terms are comm...read more

Drawing BMD and SFD of propped cantilever

• Identify the support and the point of loading

• Calculate the reactions at the support

• Draw the SFD by starting from one end and moving towards the other

• Draw the BMD by starting from the other end and moving towards the first

• Label the maximum and minimum values of SFD and BMD

• Check for equilibrium and consistency

The principle of surveying involves measuring and mapping the Earth's surface to determine the relative positions of points.

• Surveying is used to establish property boundaries, create topographic maps, and plan construction projects.

• The principle of surveying relies on accurate measurements using various instruments such as total stations, GPS receivers, and levels.

• Surveyors use mathematical calculations and trigonometry to determine distances, angles, and elevations.

• The princ...read more

A network is a collection of interconnected devices and systems that communicate and share resources.

• A network allows devices to connect and communicate with each other.

• It enables the sharing of data, information, and resources such as printers and storage devices.

• Networks can be wired or wireless, local (LAN) or wide area (WAN).

• Examples of networks include the internet, corporate intranets, and home networks.

A prolongation claim can be prepared by identifying the additional costs incurred due to delays and providing evidence to support the claim.

• Identify the cause of delay and the impact it had on the project timeline and budget

• Document all additional costs incurred due to the delay, including labor, materials, and equipment

• Provide evidence to support the claim, such as daily reports, change orders, and correspondence with stakeholders

• Calculate the total amount of the claim and s...read more

I passed HSLC in 2015.

• I passed HSLC in 2015.

• I completed my HSLC in 2015.

• I cleared the HSLC examination in 2015.

Security refers to the measures taken to protect systems, networks, and data from unauthorized access, use, disclosure, disruption, modification, or destruction.

• Security involves implementing various controls and safeguards to prevent unauthorized access to sensitive information.

• It includes measures such as encryption, firewalls, access controls, and intrusion detection systems.

• Security also involves regular monitoring, vulnerability assessments, and incident response to iden...read more

An engineer is a professional who applies scientific and mathematical principles to design, develop, and maintain systems or structures.

• Engineers use their knowledge and skills to solve complex problems and improve existing systems.

• They work in various fields such as civil, mechanical, electrical, and software engineering.

• Network Security Engineers specialize in securing computer networks and protecting them from unauthorized access or attacks.

• They design and implement securi...read more

Monitoring performance involves setting clear expectations, providing feedback, tracking progress, and addressing any issues that arise.

• Set clear performance expectations for team members

• Provide regular feedback on performance

• Track progress towards goals and objectives

• Address any performance issues promptly and constructively

A civil engineer is a professional who designs, constructs, and maintains infrastructure projects.

• Civil engineers are involved in the planning, design, and construction of various structures such as buildings, bridges, roads, and dams.

• They ensure that the projects meet safety, environmental, and regulatory standards.

• Civil engineers use advanced software and technologies to create detailed designs and simulations.

• They collaborate with architects, surveyors, and other professio...read more

Security refers to the measures and practices implemented to protect systems, networks, and data from unauthorized access, threats, and vulnerabilities.

• Security involves implementing various controls and safeguards to ensure confidentiality, integrity, and availability of information.

• It includes measures such as encryption, access controls, firewalls, intrusion detection systems, and regular security audits.

• Security also involves educating users about best practices, such as ...read more

Delay analysis involves identifying the causes of delay and determining their impact on the project timeline.

• Identify the critical path of the project

• Determine the planned vs actual timeline for each activity

• Identify any changes or disruptions that occurred during the project

• Quantify the impact of each delay on the project timeline

• Use a recognized methodology such as the As-Planned vs As-Built or Time Impact Analysis

• Consider the contractual requirements and any relevant indus...read more

I am currently earning a salary of $60,000 per year.

• My current annual salary is $60,000

• I am earning $5,000 per month

• My total compensation package is $60,000

The company name is XYZ Corporation, a leading data analytics firm specializing in providing insights for businesses.

• XYZ Corporation is a data analytics firm

• Specializes in providing insights for businesses

The neutral axis is the line where the stress is zero in a reinforced concrete structure.

• The neutral axis divides the cross-section of the structure into two parts: the compression zone and the tension zone.

• The depth of the neutral axis depends on the moment of resistance of the section and the bending moment applied.

• The position of the neutral axis affects the amount of reinforcement required in the tension zone.

• The neutral axis is important in the design of reinforced concr...read more

Construction is the process of building or assembling infrastructure, buildings, or other structures.

• Involves planning, designing, and executing a project

• Requires skilled labor and specialized equipment

• Can include various types of construction such as residential, commercial, and industrial

• Examples include building a house, constructing a bridge, or erecting a skyscraper

M20 and Fe415 are grades of concrete and steel used in construction.

• M20 is a mix of concrete with a compressive strength of 20 N/mm² after 28 days of curing.

• Fe415 is a grade of steel with a yield strength of 415 N/mm².

• M20 is commonly used for residential construction while Fe415 is used for reinforcement in concrete structures.

• Both M20 and Fe415 are standardized by the Bureau of Indian Standards (BIS).

The volume of a cube is calculated by multiplying the length of its sides.

• Volume = side x side x side

• All sides of a cube are equal

• Formula: V = s^3

System implementation process involves planning, designing, testing, and deploying new software or hardware systems.

• Planning phase involves defining project scope, setting goals, and creating a timeline.

• Design phase includes creating system architecture, database design, and user interface.

• Testing phase involves conducting various tests to ensure system functionality and performance.

• Deployment phase includes installing the system, training users, and transitioning to live ope...read more