Nippon Koei India DPT.Manager Interview Questions and Answers

Diaphragm wall work involves creating a reinforced concrete wall underground.

• Excavation of a trench to the required depth and width

• Installation of reinforcement cages

• Pouring concrete into the trench to form the wall

• Excavation of panel by panel to create a continuous wall

• Use of bentonite slurry to support the trench walls

Tremie concrete method is a technique used to place concrete underwater without washing out the cement content.

• Involves using a tremie pipe to place concrete underwater

• The pipe is slowly raised as the concrete is poured to prevent segregation

• Prevents cement washout and ensures proper placement and consolidation

• Commonly used in construction of underwater structures like bridges, dams, and foundations

The concrete hopper size for pile or diaphragm wall is calculated based on the volume of concrete needed and the rate of pouring.

• Calculate the volume of concrete needed for the pile or diaphragm wall

• Determine the rate of pouring of concrete

• Divide the volume of concrete by the rate of pouring to get the required hopper size

Yes, I am open to relocating anywhere in the world for career growth and new experiences.

• I am flexible and adaptable to new environments

• I have previous experience of relocating for work

• I am excited about the opportunity to explore different cultures and work settings