3AG Network Solutions Interview Questions and Answers

Calculate number of bricks, cement and sand required for a 10'X10' wall with 9" thickness.

• Calculate the area of the wall (10'X10') and the volume of the wall (10'X10'X0.75')

• Calculate the number of bricks required by dividing the volume of the wall by the volume of one brick (considering 10% wastage)

• Calculate the amount of cement and sand required for the brickwork based on the ratio of cement and sand (1:6)

• Convert the volume of cement and sand into weight using their respecti...read more

Density of steel is 7850 kg/m³. Weight of different diameter bars can be calculated by multiplying density with volume.

• Density of steel is 7850 kg/m³

• To calculate weight of different diameter bars, multiply density with volume

• Volume of a cylindrical bar can be calculated using the formula pi*r^2*h

• Weight can be calculated by multiplying volume with density

Grades of concrete are the strength levels of concrete. They are important for determining the load-bearing capacity of structures.

• Grades of concrete range from M5 to M100, with M representing mix and the number representing the compressive strength in MPa.

• Higher grade concrete is used for structures that need to bear heavier loads, such as bridges and high-rise buildings.

• The grade of concrete used in a structure must be carefully chosen to ensure the safety and durability of...read more

Different covers provided for RCC members include nominal cover, effective cover, and clear cover.

• Nominal cover is the minimum thickness of concrete provided between the reinforcement and the outer surface of the member.

• Effective cover is the distance between the centroid of the reinforcement and the outer surface of the member.

• Clear cover is the distance between the outer surface of the member and the nearest surface of the reinforcement.

• The covers are important to ensure du...read more

One way slab is supported on two opposite sides and bends in one direction. Two way slab is supported on all four sides and bends in two directions.

• One way slab is economical for smaller spans and has a lower depth-to-span ratio.

• Two way slab is suitable for larger spans and has a higher depth-to-span ratio.

• One way slab is commonly used in residential buildings, while two way slab is used in commercial buildings.

• Examples of one way slab include balcony slabs and roof slabs, wh...read more