Kalpataru Limited Assistant Civil Qa Qc Manager Interview Questions and Answers

Concrete is a composite material made of cement, water, aggregates, and sometimes additives, used in construction.

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

• It is made by mixing cement, water, and aggregates like sand and gravel

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

• Once mixed, concrete harden...read more

BBS stands for Bar Bending Schedule, which is a detailed list of reinforcement bars to be used in a construction project.

• BBS includes details such as bar mark, type of bar, diameter, length, shape, and quantity.

• It helps in estimating the quantity of steel required for the project.

• BBS is essential for ensuring the structural integrity and strength of the building.

• Components of BBS include bending shapes, cutting length,

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.

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

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

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.

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.

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

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.

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