EXFO Interview Questions and Answers

To find square root of decimal numbers, use long division method or estimation method.

• For long division method, write the number in the form of a perfect square and divide it by the nearest perfect square.

• For estimation method, find the two perfect squares between which the number lies and estimate the square root.

• Use a calculator for more accurate results.

• Remember to include the decimal point in the final answer.

SOM (Strength of Materials) is a branch of engineering that deals with the behavior of solid objects subjected to stresses and strains.

• SOM involves studying how materials deform and fail under various loads.

• Design of materials focuses on selecting the right materials for a specific application based on their properties.

• Examples of design of materials include choosing the appropriate metal alloy for a bridge or selecting a composite material for a lightweight aircraft.

Stress is the force applied to a material, while strain is the resulting deformation.

• Stress is the force applied per unit area on a material, measured in units like N/m^2 or psi.

• Strain is the resulting deformation or change in shape of the material, measured as a ratio of the change in length to the original length.

• Example: A rubber band being stretched represents stress (force applied) and strain (change in shape).

CAD is computer-aided design software used for creating 2D and 3D models. 2D sketches are the foundation of CAD design.

• CAD (Computer-Aided Design) software allows engineers to create detailed 2D and 3D models of products or structures.

• 2D sketches are the initial drawings that serve as the foundation for creating 3D models in CAD software.

• CAD software like AutoCAD, SolidWorks, and Fusion 360 are commonly used in engineering for design and drafting.

• 2D sketches are typically cre...read more

To solve post covid challenges of teaching, schools can implement hybrid learning models, enhance digital infrastructure, prioritize mental health support, and promote inclusive education.

• Implement hybrid learning models combining in-person and online instruction

• Enhance digital infrastructure to support remote learning

• Prioritize mental health support for students and teachers

• Promote inclusive education to address learning gaps and ensure equal access to education