PNC Infratech Interview Questions, Process, and Tips

M-20 grade ratio is the mix proportion of cement, sand and aggregate for making concrete of strength 20 MPa.

• M-20 grade concrete is commonly used for residential and commercial construction.

• The ratio of cement:sand:aggregate is 1:1.5:3.

• For 1 cubic meter of concrete, 0.28 cubic meters of cement, 0.42 cubic meters of sand, and 0.84 cubic meters of coarse aggregate are required.

A site engineer is responsible for overseeing construction projects and ensuring they are completed on time and within budget.

• Managing and supervising construction activities

• Ensuring compliance with building codes and regulations

• Preparing and submitting progress reports

• Collaborating with architects, contractors, and other stakeholders

• Monitoring project budgets and timelines

• Ensuring safety protocols are followed on site

Steel is used in steel structures due to its high strength, durability, and versatility.

• Steel has a high strength-to-weight ratio, making it ideal for supporting heavy loads.

• It is also durable and resistant to corrosion, making it suitable for outdoor structures.

• Steel can be easily fabricated into various shapes and sizes, allowing for versatile design options.

• Examples of steel structures include skyscrapers, bridges,

OOPs concepts in Java and synchronization

• OOPs concepts include inheritance, polymorphism, encapsulation, and abstraction

• Inheritance allows a class to inherit properties and methods from another class

• Polymorphism allows objects to take on multiple forms

• Encapsulation hides the implementation details of a class from other classes

• Abstraction focuses on the essential features of an object

• Synchronization is used to control a...read more