Unison Pharmaceuticals Interview Questions and Answers

The second law of thermodynamics states that the total entropy of an isolated system can never decrease over time.

• Heat naturally flows from hot to cold objects due to the second law of thermodynamics

• Engines are less efficient than ideal due to the second law of thermodynamics

• Entropy always increases in a closed system, leading to disorder and randomness

The first law of thermodynamics states that energy cannot be created or destroyed, only transferred or converted.

• Energy can be transferred between systems or converted from one form to another.

• The total energy of a closed system remains constant.

• Mathematically, the first law of thermodynamics is expressed as: ΔU = Q - W, where ΔU is the change in internal energy, Q is the heat added to the system, and W is the work done by the system.

• For example, when a gas is compressed, wor...read more

Forging is a manufacturing process involving shaping metal using compressive forces.

• Metal is heated to a high temperature to make it more malleable

• The metal is then shaped using a hammer or press

• Forging can produce parts with high strength and durability

• Examples include automotive parts, tools, and aerospace components

Forming is the process of shaping a material into a desired form or structure.

• Forming involves applying force to a material to change its shape, such as bending, stretching, or molding.

• Common examples of forming processes include forging, casting, and extrusion.

• Forming can be done using various methods like heat, pressure, or a combination of both.

• The goal of forming is to create a final product with the desired dimensions and properties.

A cam and follower mechanism is used to convert rotary motion into reciprocating motion. Types include: radial, oscillating, and translating.

• Cam is the rotating element that imparts motion to the follower

• Follower is the moving element that follows the cam's profile

• Types of cam and follower mechanisms include radial, oscillating, and translating

• Radial cam: follower moves in a radial direction

• Oscillating cam: follower moves back and forth in an oscillating motion

• Translating cam...read more