L&T Construction Junior Engineer Civil Interview Questions, Process, and Tips

The minimum grade of nominal mix is M5.

• The minimum grade of nominal mix is M5, which means the mix has a compressive strength of 5 MPa.

• Nominal mix is usually used for small scale construction works where quality control is not a major concern.

• Higher grades like M10, M15, etc., are used for more critical structures.

• Example: M5 concrete mix contains 1 part cement, 5 parts sand, and 10 parts aggregate.

The minimum grade of design mix for concrete is M10.

• The minimum grade of design mix for concrete is M10, which means the concrete mix has a compressive strength of 10 N/mm^2.

• Higher grades like M15, M20, M25, etc. indicate higher compressive strengths.

• The grade of design mix is specified by the structural engineer based on the requirements of the project.

• Different grades of concrete are used for different types of const...read more

Estimate costing is the process of calculating the approximate cost of a construction project before it begins.

• Estimate costing involves analyzing the materials, labor, equipment, and other expenses required for a project.

• It helps in determining the budget and feasibility of a project.

• Estimate costing can be done using software like CostX, Bluebeam, or manually by experienced engineers.

• It is important to regularly upda...read more

Land surveying is the process of accurately determining and measuring the position of points on the Earth's surface.

• Involves measuring distances, angles, and elevations

• Used in construction, mapping, and boundary determination

• Utilizes tools such as total stations, GPS, and levels

• Creates maps, plans, and legal documents for land use

PWD department stands for Public Works Department, responsible for construction and maintenance of public infrastructure.

• PWD department is a government organization responsible for the construction and maintenance of public infrastructure such as roads, bridges, buildings, and water supply systems.

• It plays a crucial role in ensuring the safety and functionality of public infrastructure for the benefit of the community.

• ...read more

One quivick is equivalent to 500 bricks.

• One quivick is equal to 500 bricks.

• A quivick is a unit of measurement used in construction to estimate the number of bricks needed for a project.

• For example, if a project requires 2000 bricks, it would be equivalent to 4 quivicks.

There are several types of cement used in construction, each with different properties and applications.

• There are different types of cement such as Portland cement, rapid hardening cement, white cement, etc.

• Each type of cement has specific properties and is used for different purposes in construction.

• For example, Portland cement is commonly used for general construction purposes, while rapid hardening cement is used fo...read more

Good quality cement should have high strength, low heat of hydration, and minimal impurities.

• High compressive strength

• Low heat of hydration to prevent cracking

• Minimal impurities like excess lime or magnesium oxide

• Consistent fineness and setting time

• Should meet relevant standards like ASTM C150 or IS 269