Eagle Infra Head - Projects Interview Questions and Answers

The process of Water Treatment Plant (W.T.P) involves various stages to purify water for consumption.

• 1. Coagulation: Adding chemicals to water to make particles clump together.

• 2. Sedimentation: Allowing the clumped particles to settle at the bottom.

• 3. Filtration: Passing water through filters to remove remaining particles.

• 4. Disinfection: Adding chlorine or other chemicals to kill bacteria and viruses.

• 5. Distribution: ...read more

The question is about the specifications of different layers in a flexible pavement.

• The embankment layer has a thickness of 3m and is compacted at 95% with large size soil particles and effective CBR as per design.

• The subgrade layer has a total thickness of 500mm and is compacted at 97% with large size soil particles and effective CBR as per design.

• The GSB layer has a total thickness of 300mm and is a mixture of aggreg...read more

Design procedure for laying M15 grade concrete with specific requirements for cement content, compressive strength, and compaction.

• Use M15 grade concrete with aggregate and cement ratio of 1:2

• Minimum cement content of 150kg per cum, or 120kg per cum if flyash is more than 20%

• Ensure compressive strength of 10MPA after 7 days curing, with no sample below 7.5MPA

• Ensure DLC premix batching plant material is homogeneous and ...read more

Design procedure for PQC using M40 grade concrete

• Minimum cement content of 360kg per cum

• Flexural strength of 4.5MPA and compressive strength of 40MPA after 28-day curing

• Dowel bars and tie bars provided for load transfer and prevention of cracking and deflection

• PQC mix prepared in pre-mix batching plant and transported to site

• Separation membrane and texturing and sawing operations performed for proper finishing

• 28-day cu...read more

Different types of carriage way include single lane, multilane, intermediate lane, two lane, three lane, and four lane.

• Single lane has a width of 3.75m

• Multilane has a width of 3.50m

• Intermediate lane has a width of 5.5m

• Two lane has a width of 7.5m

• Three lane has a width of 10.50m

• Four lane has a width of 7.5m + 7.5m

The grade of concrete normally used for RCC is M20.

• The grade of concrete for RCC (Reinforced Cement Concrete) is determined based on the design requirements and structural considerations.

• The most commonly used grade of concrete for RCC is M20, which means the concrete mix has a compressive strength of 20 megapascals (MPa) after 28 days of curing.

• Other grades of concrete like M25, M30, M35, etc., can also be used depend...read more

Pre-initiative actions for start piling

• Conduct a geotechnical investigation to assess soil conditions

• Obtain necessary permits and approvals from local authorities

• Develop a detailed piling plan and schedule

• Procure required piling equipment and materials

• Ensure safety measures are in place for workers and surrounding areas

• Prepare the site by clearing any obstacles or debris

• Establish proper communication channels with stak...read more

The duration for deshuttering a beam of span 4 mtr depends on various factors.

• The type of formwork used for shuttering the beam

• The strength of the concrete used

• The ambient temperature and humidity

• The curing process followed

• The complexity of the beam design

• The availability of manpower and equipment

• Typically, deshuttering can take anywhere from 7 to 21 days for a beam of span 4 mtr

To define one way and two way slab, we follow different procedures. For two way slab, reinforcement is fixed in both directions.

• One way slab is defined as the slab in which the ratio of longer span to shorter span is greater than or equal to 2.

• Two way slab is defined as the slab in which the ratio of longer span to shorter span is less than 2.

• For two way slab, reinforcement is fixed in both directions to distribute the...read more

Design standards for sewerage system

• Design standards vary based on location and regulations

• Consideration should be given to factors such as population density, topography, and soil type

• Standards may include minimum pipe diameter, slope, and depth

• Examples of design standards include ASCE 15 and EPA guidelines