10+ Viva Composite Panel Interview Questions and Answers

Explanation of design procedure for M40 grade concrete with dowel bars and tie bars.

• Minimum cement content of 360kg percum for M40 grade concrete

• Dowel bars of size 32mm S240 length 300mmC/C and PVC dowel sheet size 34mm×100 micron

• Tie bars of size 12mm dia tor bar length of tie bar 1m and spacing 300mmc/c

• Premix batching plant material is homogeneous and uniform with workability of less than 25mm+-10mm

• Separation membrane of size 125 micron with overlapping of length 300mm

• Textur...read more

The design procedure for M15 grade concrete using specified ratios and minimum cement content, along with proper handling and curing techniques.

• Use M15 grade concrete with aggregate and cement ratio of 12:2

• Minimum cement content of 150kg percum, or 120kg percum if fly ash is more than 20%

• Compressive strength testing of 5no sample cube concrete after 7 days curing

• Ensure DLC mix is homogeneous and uniform in premix batching plant

• Cover DLC during transport to site with tarpoline...read more

Bitumen and aggregate are laid at high temperatures for better bonding and compaction.

• High temperature improves the workability of bitumen and aggregate.

• It helps in achieving better bonding and compaction.

• Rolling at lower temperature ensures that the mixture is not damaged.

• The temperature range may vary depending on the type of bitumen and aggregate used.

Premix carpeting is a mixture of aggregate and gravel spread and rolled to a total thickness of 6 to 8mm.

• Premix carpeting is a type of road surface that is commonly used for low-traffic roads and driveways.

• It is made by mixing together aggregate and gravel, which are then spread and rolled to create a smooth surface.

• The total thickness of the premix carpeting is typically between 6 and 8mm.

• This type of road surface is relatively inexpensive and easy to install, but it may not...read more

The toughest project in my career was implementing a quality control system for a manufacturing company.

• The project involved setting up quality control processes and procedures across multiple departments.

• One of the technical problems faced was integrating different software systems used by different departments into a centralized quality control system.

• Another challenge was ensuring that the quality control system was compatible with existing production processes and did not...read more

NATM stands for New Austrian Tunneling Method, a construction method for tunnels and underground spaces.

• NATM is a sequential excavation method used in tunnel construction.

• It involves excavating the tunnel while providing support using rock bolts, shotcrete, and steel ribs.

• The method allows for flexibility in design and construction based on the geological conditions encountered.

• NATM has been used in various tunnel projects worldwide, including the Channel Tunnel and the Gotth...read more

The dimensions of the slump cone are 100mm, 200mm, and 300mm for top, bottom, and height respectively.

• The slump cone is used to measure the consistency of concrete.

• The dimensions of the cone affect the test results.

• The cone is filled with concrete and then lifted, and the amount of slump is measured.

• The test is used to ensure the concrete is of the correct consistency for the intended use.

Deflection at x section in a beam with certain loading case.

• Calculate the bending moment at x section

• Use the bending moment equation to find the deflection

• Consider the type of beam and loading case

• Check for any assumptions made in the calculation

• Verify the results with appropriate software or manual calculations

The dimension of slump cone is 300 mm height, 200 mm top diameter, and 100 mm bottom diameter.

• The height of the slump cone is 300 mm.

• The top diameter of the slump cone is 200 mm.

• The bottom diameter of the slump cone is 100 mm.

• The slump cone is made of metal or plastic.

• It is used to measure the consistency of fresh concrete.

• The test involves filling the cone with concrete and then lifting it to see how much the concrete slumps.

• The dimension of the slump cone is specified by va...read more

Yes, 4D refers to time-based scheduling and 5D refers to cost estimation in BIM.

• 4D BIM involves adding a time dimension to the 3D model to create a construction schedule.

• 5D BIM adds cost information to the 4D model, allowing for more accurate cost estimation.

• Both 4D and 5D BIM are important tools for project planning and management.

• Examples of software that support 4D and 5D BIM include Navisworks, Synchro, and Vico Office.

Tunnel construction involves various hazards such as cave-ins, explosions, and exposure to harmful substances. Control measures include proper ventilation, personal protective equipment, and regular safety inspections.

• Cave-ins can be prevented by using proper shoring techniques and ensuring the stability of the surrounding soil

• Explosions can be prevented by proper handling and storage of explosives, and regular gas monitoring

• Exposure to harmful substances can be prevented by ...read more

There are several types of tests for cement to ensure quality and strength.

• Compression test to measure the strength of cement

• Fineness test to determine the particle size of cement

• Setting time test to assess the time taken for cement to set

• Soundness test to check for any volume changes in cement

• Chemical analysis test to determine the chemical composition of cement

Bearings are used in structures to support and facilitate the movement of various components.

• Bearings reduce friction and allow for smooth rotation or movement of parts.

• They help distribute loads evenly and prevent excessive wear and tear.

• Bearings are commonly used in bridges, buildings, machinery, and vehicles.

• Examples include roller bearings, ball bearings, and sleeve bearings.

M40 is a concrete mix design with a compressive strength of 40 MPa.

• M40 is a designation for a concrete mix with a specified compressive strength of 40 megapascals.

• It is commonly used in construction for structures that require high strength, such as bridges and high-rise buildings.

• The mix typically consists of cement, sand, aggregate, and water in specific proportions to achieve the desired strength.

• Proper curing and testing procedures are essential to ensure the mix meets th...read more