Rohan Builders Senior Civil Site Engineer Interview Questions and Answers

Q1. Under and over reinf of beam and column
Ans. 
Under and over reinforcement in beams and columns refers to the amount of reinforcement provided in relation to the required strength of the structure.
• Under reinforcement occurs when the amount of reinforcement provided is less than what is required for the structure to carry the design loads.

• Over reinforcement occurs when the amount of reinforcement provided is more than what is required for the structure, leading to ...read more
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Q2. Ndt tests of members of why it’s been done
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NDT tests of members are done to ensure structural integrity and safety.
• NDT tests are non-destructive tests used to evaluate the properties of a material, component, or system without causing damage.

• These tests help in detecting defects such as cracks, voids, and discontinuities that may compromise the structural integrity of the members.

• By conducting NDT tests, engineers can ensure the safety and reliability of struct...read more
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Q1. Salary negotiations
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Q2. Previous employment
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Building and roads related

Q1. Salary and other details
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Q1. Building and roads project related
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Q2. Like part of building
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Q1. Tests for concrete and cement
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Q2. Grades of concrete
Ans. 
Grades of concrete refer to the strength of the concrete mix design.
• Grades of concrete are denoted by M10, M15, M20, etc. where M stands for mix and the number represents the compressive strength in N/mm^2.

• Higher grade concrete has higher compressive strength and is used for structural purposes.

• Common grades include M25, M30, M35, and M40 for heavy-duty structures like bridges and high-rise buildings.
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Q3. What is slump in concrete
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Slump in concrete refers to the measure of consistency of freshly mixed concrete.
• Slump is determined by the amount of water in the concrete mix.

• It is measured by filling a cone-shaped mold with concrete, then lifting the mold to see how much the concrete slumps.

• Different types of slumps (true slump, shear slump, collapse slump) indicate different levels of workability and strength of the concrete mix.

• Slump test is comm...read more
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Q4. What is water cement ratio
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Water cement ratio is the ratio of the weight of water to the weight of cement used in a concrete mix.
• Water cement ratio is a crucial factor in determining the strength and durability of concrete.

• A lower water cement ratio results in stronger and more durable concrete.

• The ideal water cement ratio varies depending on the type of concrete mix and its intended use.

• For example, a water cement ratio of 0.5 is commonly used ...read more
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Q5. What is M20 grade concrete
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M20 grade concrete is a mix of 1 part cement, 1.5 parts sand, and 3 parts aggregate, with a compressive strength of 20 MPa.
• M20 grade concrete is commonly used in residential construction.

• It is a mix of 1 part cement, 1.5 parts sand, and 3 parts aggregate.

• The compressive strength of M20 grade concrete is 20 MPa.

• It is suitable for foundations, beams, columns, and slabs.
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Q1. Question acording construction line
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Q2. No of brick in 1 cubic meter
Ans. 
The number of bricks in 1 cubic meter varies depending on the size of the bricks used.
• The number of bricks in 1 cubic meter will depend on the size of the bricks being used.

• Standard size bricks (190mm x 90mm x 90mm) will have a different count compared to larger or smaller bricks.

• Calculations can be done by dividing the volume of 1 cubic meter by the volume of a single brick.
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Q1. Pressure in fire hydrant pipe
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Pressure in fire hydrant pipe is determined by factors like water flow rate, pipe diameter, and elevation difference.
• Pressure in fire hydrant pipe is directly related to the flow rate of water through the pipe.

• The diameter of the pipe also affects the pressure, with larger diameter pipes resulting in lower pressure loss.

• Elevation difference between the hydrant and the point of discharge can impact the pressure in the p...read more
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Q2. What is NRC full form
Ans. 
NRC stands for National Register of Citizens.
• NRC is a register containing names of all genuine Indian citizens in the state of Assam, India.

• It was first prepared in 1951 and is now being updated to identify illegal immigrants.

• The NRC process involves verifying the citizenship status of individuals based on documents like birth certificates, land records, etc.
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Q1. About your self
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Q1. How to do layout, how to calculate column ring cutting length
Ans. 
Layout is done using measurements and tools, column ring cutting length is calculated based on the diameter and height of the column.
• Use measuring tape and chalk to mark the layout according to the blueprint

• Calculate the column ring cutting length using the formula: 2 x π x radius + height

• Ensure accuracy in measurements to avoid errors in construction
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