RNS INFRASTRUCTURE Interview Questions and Answers

Site work involves preparing the construction site for building, including clearing, grading, and excavation.

• Clearing the site of any existing structures or debris

• Grading the land to ensure proper drainage and foundation stability

• Excavating for foundations, utilities, and other underground structures

• Installing erosion control measures to prevent soil erosion

• Preparing access roads and parking areas for construction vehi...read more

M20 grade concrete proportion is 1:1.5:3 (cement:sand:aggregate) with a compressive strength of 20 MPa.

• M20 grade concrete is commonly used for residential and commercial construction.

• The proportion of cement, sand, and aggregate is 1:1.5:3 by volume.

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

• The water-cement ratio for M20 grade concrete is typically 0.5.

M40 concrete has a compressive strength of 40 megapascals (MPa).

• M40 concrete is a high-strength concrete mix commonly used in construction.

• It has a compressive strength of 40 MPa, which means it can withstand heavy loads and pressure.

• M40 concrete is typically used in the construction of bridges, high-rise buildings, and other structures that require high strength and durability.

The unit weight of a 20mm dia rod varies depending on the material it is made of.

• The unit weight of a 20mm dia rod made of steel is approximately 2.47 kg/m

• The unit weight of a 20mm dia rod made of brass is approximately 3.68 kg/m

• The unit weight of a 20mm dia rod made of aluminum is approximately 1.57 kg/m