20+ Patel Infrastructure Interview Questions and Answers

The design procedure for cement concrete includes minimum cement content, strength requirements, dowel bar and tie bar specifications, and surface preparation and curing techniques.

• Minimum cement content of 360 kg/cum if fly ash is more than 20%, and 310 kg/cum otherwise

• Flexural strength of cement concrete after 28-day curing should be 4.5 MPa, and compressive strength should be 40 MPa

• Dowel bar size of 32mm dia and 300mm c/c length, and tie bar size of 12mm dia and 1m length

• S...read more

The design procedure for DLC mix includes using M15 grade concrete, minimum cement content of 150 kg/cum, and achieving a compressive strength of at least 10 MPA after 7 days of curing.

• Use M15 grade concrete with aggregate and cement ratio of 12:1

• Minimum cement content of 150 kg/cum, or 120 kg/cum if fly ash content is over 20%

• Achieve a compressive strength of at least 10 MPA after 7 days of curing

• DLC mix should be homogeneous and uniform, and placed on site by covered transp...read more

Material suitability criteria for aggregate in construction projects.

• Aggregate size should be 26.5 mm or less.

• Water absorption should not exceed 2%.

• Soundness test should show Naso4 not more than 12% and Mgso4 not more than 18%.

• Angle of abrasion should be less than 35% with max FI & EI less than 35%.

• Equivalent weight of sand should not be less than 50%.

• Aggregate should not be alkaline reactive.

• MDD & MCC should be as per design.

The question is about the suitability of aggregate size and water absorption for PQC with a total thickness of 300mm and tolerance of +/-6mm.

• Aggregate size of 31.5mm is suitable for PQC with a total thickness of 300mm and tolerance of +/-6mm.

• Water absorption to GSB DLC being the same for PQC is also suitable.

• The suitability of the material is important for the successful completion of the project.

Bituminous laying temperature is 130-150°C and rolling temperature is 80-100°C.

• Bituminous laying requires higher temperature than rolling.

• Temperature range ensures proper compaction and adhesion.

• Temperature can vary based on the type of bitumen and aggregate used.

• Proper temperature control is crucial for quality bituminous pavement.

Materials needed for installing and configuring CCTV include cameras, cables, DVR/NVR, monitor, power supply, and tools.

• Cameras (e.g. dome cameras, bullet cameras)

• Cables (e.g. coaxial cables, Ethernet cables)

• DVR/NVR (Digital Video Recorder/Network Video Recorder)

• Monitor (for viewing footage)

• Power supply (for cameras and DVR/NVR)

• Tools (e.g. drill, screwdriver)

There are two main types of switches used in networking for LAN network and CCTV network: managed switches and unmanaged switches.

• Managed switches offer more control and features, such as VLAN support and Quality of Service (QoS) settings.

• Unmanaged switches are simpler and easier to set up, but offer less customization and control.

• Examples of managed switches include Cisco Catalyst series and HP ProCurve series.

• Examples of unmanaged switches include Netgear ProSafe series and...read more

I would carefully evaluate the offer and consider various factors before making a decision.

• Assess the salary offer in comparison to my current salary

• Consider the overall compensation package, including benefits and bonuses

• Evaluate the growth opportunities and career advancement prospects in both companies

• Assess the company culture, work-life balance, and job satisfaction

• Consider the location and commute

• Consult with mentors or trusted advisors for their insights

• Negotiate with ...read more

Yes, I have knowledge about firewall devices.

• Firewall devices are used to monitor and control incoming and outgoing network traffic based on predetermined security rules.

• They can be hardware-based or software-based.

• Examples of firewall devices include Cisco ASA, Palo Alto Networks, and Fortinet.

• Firewalls can be configured to block certain types of traffic, such as specific websites or protocols.

• They are essential for network security to protect against unauthorized access and...read more

Yes, configuring RF devices involves setting up and optimizing radio frequency devices for optimal performance.

• Configuring RF devices involves adjusting settings such as frequency, power levels, and modulation to ensure proper communication.

• Examples of RF devices include routers, access points, and wireless adapters.

• Proper configuration of RF devices is essential for reliable wireless communication and network performance.

Haunches are provided in culverts to distribute the load from the superstructure to the foundation.

• Haunches help in reducing the stress concentration at the corners of the culvert.

• They provide additional support to the culvert walls and prevent cracking or failure.

• Haunches improve the structural integrity of the culvert and increase its load-carrying capacity.

• They help in maintaining the shape and alignment of the culvert during construction and throughout its lifespan.

• Haunch...read more

I have experience with various types of foundations including shallow foundations, deep foundations, and pile foundations.

• Shallow foundations: These are used when the soil is stable and can support the load of the structure. Examples include spread footings and mat foundations.

• Deep foundations: These are used when the soil near the surface is not suitable for supporting the load. Examples include pile foundations and drilled shafts.

• Pile foundations: These are deep foundations...read more

43 and 53 grade cement differ in their compressive strength and suitability for different types of construction.

• 43 grade cement has a compressive strength of 43 MPa while 53 grade cement has a compressive strength of 53 MPa.

• 53 grade cement is more suitable for construction of high-rise buildings and structures that require high strength concrete.

• 43 grade cement is suitable for construction of low to medium rise buildings and structures that do not require high strength concre...read more

The temperature needed for BC laying is typically around 70-75 degrees Fahrenheit.

• The ideal temperature for BC laying is between 70-75 degrees Fahrenheit

• Maintaining a consistent temperature is important for successful BC laying

• Extreme temperatures can negatively impact the BC laying process

P&M Quality objectives focus on improving product and manufacturing quality standards.

• Implementing quality control measures to ensure products meet specifications

• Continuous monitoring and analysis of production processes for quality improvement

• Training employees on quality standards and best practices

• Setting specific quality targets to achieve measurable improvements

• Regularly reviewing and updating quality objectives based on feedback and data

• Example: Implementing a new quali...read more

The size of the pier arm of concourse level depends on the load it needs to support and the design specifications.

• The size of the pier arm is determined by the load it needs to support, which is calculated based on the weight of the structure it supports and the live loads it will experience.

• The design specifications also play a role in determining the size of the pier arm, including factors such as the height of the structure, wind loads, seismic loads, and other environment...read more

Moisture content is the amount of water present in a material, expressed as a percentage of the total weight of the material.

• Moisture content is a crucial factor in construction materials such as soil, concrete, and wood.

• It is determined by comparing the weight of the material before and after drying it to remove all moisture.

• Moisture content affects the strength, durability, and workability of materials.

• High moisture content can lead to issues like mold growth, decay, and re...read more

Planning for execution and laying of bituminous involves detailed scheduling, coordination, and quality control.

• Develop a detailed project plan outlining tasks, timelines, and resources required

• Coordinate with suppliers for timely delivery of materials

• Ensure proper equipment and manpower are available for the execution

• Implement quality control measures to ensure the final product meets specifications

• Regularly monitor progress and make adjustments as needed

• Example: Creating a ...read more

GSB work refers to Granular Sub Base work in civil engineering, which involves laying a layer of compacted granular material as a base for roads or pavements.

• GSB work is a crucial step in road construction to provide a stable foundation for the pavement layers above.

• It involves spreading and compacting layers of granular material like crushed stone, gravel, or sand.

• Proper compaction is essential to ensure the stability and durability of the road.

• GSB work helps in preventing w...read more

The process of construction involves planning, designing, obtaining permits, sourcing materials, and executing the build.

• Planning: Develop a detailed plan outlining the project scope, timeline, and budget.

• Designing: Create blueprints and architectural drawings to guide the construction process.

• Obtaining permits: Secure necessary approvals from local authorities before starting construction.

• Sourcing materials: Procure high-quality materials within budget constraints.

• Executing ...read more

Types of construction include residential, commercial, industrial, and civil engineering.

• Residential construction involves building houses, apartments, and other living spaces.

• Commercial construction includes offices, retail stores, and restaurants.

• Industrial construction focuses on factories, warehouses, and manufacturing plants.

• Civil engineering construction involves infrastructure like roads, bridges, and dams.

Project management involves planning, organizing, and managing resources to achieve specific goals. SCM involves managing the flow of goods and services from the point of origin to the point of consumption.

• Project management involves defining project goals, creating a project plan, allocating resources, and tracking progress.

• SCM involves managing the movement of goods and services from suppliers to customers, including procurement, production, transportation, and distribution...read more