Rabwin Industries Civil Site Engineer Interview Questions and Answers

The density of steel is approximately 7.85 grams per cubic centimeter.

• The density of steel is a measure of how much mass is contained in a given volume of steel.

• It is commonly expressed in grams per cubic centimeter (g/cm³) or kilograms per cubic meter (kg/m³).

• The density of steel can vary depending on the specific type and composition of the steel alloy.

• For example, the density of carbon steel is generally around 7.85...read more

Formula to find unit weight of steel

• Unit weight of steel = Density of steel x Volume of steel

• Density of steel = 7850 kg/m³

• Volume of steel = Area of steel x Length of steel

• Example: Unit weight of a 10mm diameter steel bar of length 1 meter = 0.785 x 1 x 7850 = 6162.25 grams

• Example: Unit weight of a 12mm diameter steel bar of length 12 meters = 0.888 x 12 x 7850 = 835584 grams

The frog size of a brick refers to the distance between the two parallel sides of a brick.

• The frog size is typically measured in millimeters.

• It is important for proper bricklaying and mortar application.

• The size of the frog can vary depending on the type and size of the brick.

• For example, a standard brick may have a frog size of around 10-15mm.

• Some bricks may not have a frog at all.