Viska Interview Questions and Answers

My favorite topic in optics is the study of light-matter interactions.

• I am fascinated by how light interacts with different materials and how it can be manipulated to achieve specific outcomes.

• I am particularly interested in the field of photonics and how it is being used to develop new technologies such as optical computing and quantum communication.

• I enjoy learning about the different types of optical materials and how they can be used to create new devices and applications...read more

The cycle of an internal combustion engine involves intake, compression, power, and exhaust strokes.

• Intake: Air and fuel mixture is drawn into the cylinder

• Compression: The mixture is compressed by the piston

• Power: The spark plug ignites the mixture, causing an explosion and pushing the piston down

• Exhaust: The exhaust gases are expelled from the cylinder

Understanding the loads considered and material properties in my final year project.

• Considered loads include static, dynamic, and impact loads

• Material properties such as strength, stiffness, and ductility are crucial for design

• Testing methods like tensile testing and impact testing are used to determine material properties

• Examples: analyzing the load distribution on a bridge structure, selecting materials for a car bumper based on impact resistance

Heat treatment is a process used to alter the physical and mechanical properties of materials through heating and cooling.

• Heat treatment involves heating the material to a specific temperature

• The material is held at that temperature for a certain period of time

• The material is then cooled at a controlled rate

• Different heat treatment techniques include annealing, tempering, quenching, and case hardening

• Heat treatment can improve hardness, strength, toughness, and ductility of m...read more

Company balance as per Companies Act, 2013 refers to the financial statement showing the assets, liabilities, and equity of a company.

• Company balance is prepared annually by companies to provide a snapshot of their financial position.

• It includes assets (such as cash, inventory, property), liabilities (such as loans, accounts payable), and equity (ownership stake).

• The balance sheet must adhere to the format and disclosure requirements specified in the Companies Act, 2013.

• It he...read more

Latent heat is the heat energy absorbed or released during a phase change without a change in temperature.

• Latent heat is the energy required to change the state of a substance without changing its temperature.

• It is the heat energy absorbed or released during processes like melting, boiling, or condensation.

• During phase changes, the energy is used to break or form intermolecular bonds.

• For example, when ice melts into water, it absorbs latent heat from the surroundings.

• Latent h...read more

Turbulence is a chaotic and unpredictable flow of fluid or air characterized by irregular changes in velocity and pressure.

• Turbulence occurs when the flow of a fluid or air becomes unstable and exhibits random fluctuations.

• It is often observed in natural phenomena such as wind, water currents, and atmospheric conditions.

• Turbulent flow is characterized by eddies, vortices, and rapid changes in velocity and pressure.

• It can cause disruptions in the smooth flow of fluids, leading...read more