Rajhans (Desai-Jain) Group Interview Questions and Answers

My name is John Smith, a civil engineer with 10 years of experience in infrastructure projects.

• My name is John Smith

• I have 10 years of experience in civil engineering

• I specialize in infrastructure projects

I am currently working at a construction firm in New York City.

• I am currently employed at a construction firm in New York City.

• I have experience working on various infrastructure projects in the city.

• I am familiar with the building codes and regulations in New York City.

Concrete is a mixture of cement, water, aggregates, and sometimes additives, used in construction for its strength and durability.

• Concrete is made up of cement, water, and aggregates (such as sand and gravel)

• It is a versatile material used in construction for buildings, roads, bridges, and more

• Additives can be included in concrete mixtures to enhance specific properties, such as strength or workability

• Concrete hardens ...read more

Structure in civil engineering refers to the arrangement and organization of elements in a building or infrastructure to support loads and resist forces.

• Structure is the framework or skeleton of a building or infrastructure that supports the weight of the building and its occupants.

• It includes elements such as beams, columns, walls, and foundations that work together to provide stability and strength.

• Structural design ...read more

Rolling margin in steel consumption refers to the percentage of excess steel ordered to account for potential wastage during the manufacturing process.

• Rolling margin is typically around 5-10% of the total steel consumption.

• It helps to ensure that there is enough steel available to complete a project without running out.

• Factors such as the complexity of the project and the experience of the manufacturer can influence th...read more

Different grades of concrete are used for different structures based on their strength requirements.

• Different grades of concrete like M5, M10, M15, M20, M25, etc. are used for different structures.

• For example, M5 grade concrete is used for PCC (Plain Cement Concrete) work, while M20 grade concrete is used for RCC (Reinforced Cement Concrete) work.

• Higher grades like M30, M35, M40, etc. are used for structures requiring

D-wall stands for Diaphragm wall, a reinforced concrete wall constructed in the ground to support excavation and prevent water ingress.

• D-wall is commonly used in deep excavation projects to provide lateral support and prevent soil movement.

• It is constructed by excavating a trench, installing reinforcement bars, and pouring concrete into the trench.

• D-walls are often used in construction of underground structures like ba...read more

In high water level areas, foundation work involves dewatering techniques to lower the water table and ensure stability.

• Dewatering techniques such as wellpoint systems, deep wells, sumps, and pumping are used to lower the water table.

• Waterproofing measures like using impermeable membranes or grouting can be applied to prevent water infiltration.

• Proper drainage systems are installed to divert water away from the foundat...read more