NKC Projects Structural Engineer Interview Questions and Answers

M20 concrete is a type of concrete with a compressive strength of 20 megapascals (MPa).

• M20 concrete is commonly used in construction for various applications.

• It is a mix of cement, sand, and aggregate in specific proportions.

• The ratio of cement to sand to aggregate in M20 concrete is 1:1.5:3.

• It is suitable for non-structural components like foundations, pathways, etc.

• M20 concrete has a curing period of 28 days to achie

The steel cutting length formula for a 90° bend is calculated using the bend allowance and the bend radius.

• The bend allowance is the length of material that is consumed during the bending process.

• The bend radius is the radius of the inside curve of the bend.

• The formula for calculating the steel cutting length for a 90° bend is: Cutting Length = Bend Allowance + (π/2) x Bend Radius

• The value of π is approximately 3.14159

The total length of steel is equal to 2 times the difference between the length of the steel and twice its diameter.

• The formula for total length of steel is: L = 2(L-2d)

• L represents the total length of steel

• d represents the diameter of the steel

• Example: If the length of the steel is 10 meters and the diameter is 2 meters, the total length of steel would be 12 meters