Balfour Beatty Applications Engineer Interview Questions and Answers

Iron Carbon diagram shows phases of steel metallurgy including ferrite, austenite, cementite, and pearlite.

• Iron Carbon diagram is a graphical representation of the phases that steel undergoes as it cools from a high temperature.

• Phases include ferrite, austenite, cementite, and pearlite, each with unique properties and structures.

• Ferrite is a soft phase with low carbon content, austenite is a high-temperature phase with...read more

Different types of alloy used during steel making process can affect the properties of the final steel product.

• Alloying elements can change the strength, hardness, ductility, and other mechanical properties of steel.

• Alloys like chromium and nickel can improve corrosion resistance of steel.

• Manganese and silicon are commonly used as deoxidizers in steel making process.

• Alloying elements can also affect the weldability and...read more

Oops in Java stands for Object-Oriented Programming. It is a programming paradigm based on the concept of objects.

• Oops in Java allows for the creation of classes and objects, encapsulation, inheritance, and polymorphism.

• Classes are templates for objects, encapsulation hides the internal state of an object and only exposes necessary functionalities, inheritance allows for the creation of new classes based on existing on...read more

In Java, an object is an instance of a class that contains data and methods.

• Objects are created using the 'new' keyword followed by the class name

• Objects have attributes (fields) and behaviors (methods)

• Example: 'Car' class can have objects like 'myCar' and 'yourCar'

Polymorphism is the ability of a single function or method to operate on different types of data.

• Polymorphism allows objects of different classes to be treated as objects of a common superclass.

• There are two types of polymorphism: compile-time (method overloading) and runtime (method overriding).

• Example: Inheritance in object-oriented programming languages like Java allows for polymorphism.