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The fire Tetrahedron is a model that illustrates the four elements necessary for a fire to occur: fuel, heat, oxygen, and a chemical chain reaction.
Fuel: any material that can burn, such as wood, paper, or gasoline
Heat: the energy needed to raise the temperature of the fuel to its ignition point
Oxygen: the presence of oxygen in the air that supports combustion
Chemical chain reaction: a process where the heat produced b...
Fires are classified based on the type of fuel involved, such as Class A, B, C, D, and K fires.
Class A fires involve ordinary combustibles like wood and paper
Class B fires involve flammable liquids like gasoline and oil
Class C fires involve energized electrical equipment
Class D fires involve combustible metals like magnesium and titanium
Class K fires involve cooking oils and fats
I was interviewed before Nov 2022.
Safety is the practice of preventing accidents, injuries, and other potential hazards in order to protect individuals and property.
Safety involves identifying and assessing risks in order to implement measures to mitigate them.
It includes providing proper training and equipment to ensure the well-being of individuals.
Safety protocols should be regularly reviewed and updated to address new risks and challenges.
Examples ...
Fire elements refer to the components necessary for a fire to occur, including fuel, heat, oxygen, and a chemical chain reaction.
Fuel: Any material that can burn, such as wood, paper, or gasoline.
Heat: The energy needed to raise the temperature of the fuel to its ignition point.
Oxygen: The presence of oxygen in the air allows the fire to burn.
Chemical chain reaction: The process by which the fuel is broken down and rel
Types of classification include hierarchical, binary, and multi-class.
Hierarchical classification involves organizing categories into a tree-like structure.
Binary classification involves categorizing data into two classes.
Multi-class classification involves categorizing data into more than two classes.
Types of extinguishers include water, foam, CO2, dry powder, and wet chemical.
Water extinguishers are suitable for Class A fires involving solid materials like wood or paper.
Foam extinguishers are effective on Class A and B fires, involving flammable liquids.
CO2 extinguishers are used for electrical fires (Class C) and flammable liquids (Class B).
Dry powder extinguishers are versatile and can be used on Class A, B, and...
A tetrahedron is a polyhedron with four triangular faces, six straight edges, and four vertex corners.
A tetrahedron is a three-dimensional shape.
It is made up of four equilateral triangles.
It has a total of six edges and four vertices.
Examples of tetrahedrons include pyramids and certain molecular structures.
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I applied via Recruitment Consultant and was interviewed in Jan 2018. There were 5 interview rounds.
I applied via Walk-in and was interviewed in Sep 2020. There were 3 interview rounds.
Acceptance limit of validations refers to the maximum allowable deviation from a standard or specification.
Acceptance limit is determined by regulatory agencies or industry standards.
It is used to ensure that products or processes meet quality standards.
For example, the acceptance limit for a drug potency test may be +/- 5% of the labeled potency.
Acceptance limits can vary depending on the type of validation being perf...
I applied via Referral and was interviewed in Jan 2021. There were 3 interview rounds.
I applied via Walk-in
Written exam is normally
Production is the process of creating goods or services through the use of resources and labor.
Production involves converting raw materials or components into finished products.
Following cGMP (Current Good Manufacturing Practice) rules ensures that products are consistently produced and controlled according to quality standards.
This includes maintaining clean and hygienic production facilities, properly documenting pro...
I handle various types of machines in my role as an Officer.
I handle machines such as CNC machines, injection molding machines, and packaging machines.
If cgmp rules are not followed, it can lead to product contamination, quality issues, and regulatory violations.
To face audits, I ensure that all machines are properly maintained, calibrated, and operated according to cgmp guidelines.
During audits, I provide documentatio...
I applied via Approached by company and was interviewed before Feb 2021. There was 1 interview round.
pH is a measure of the acidity or alkalinity of a solution. It ranges from 0 to 14, with 7 being neutral.
pH stands for 'potential of hydrogen'
It is a logarithmic scale that measures the concentration of hydrogen ions in a solution
A pH value below 7 indicates acidity, while a value above 7 indicates alkalinity
Pure water has a pH of 7, making it neutral
Examples of pH values: lemon juice (pH 2), baking soda (pH 9), stomac
Unit operation refers to a single step in a chemical process, while unit process is a combination of multiple unit operations.
Unit operation is a distinct step or action in a chemical process.
Unit process is a combination of multiple unit operations.
Unit operations involve physical or chemical changes to materials.
Unit processes are used to transform raw materials into desired products.
Examples of unit operations inclu...
Extraction is the process of separating a desired substance from a mixture using solvents. Distillation is the process of separating components of a mixture based on their boiling points.
Extraction involves dissolving a substance in a solvent to separate it from a mixture.
Distillation involves heating a mixture to vaporize the component with the lowest boiling point, then condensing it to collect the pure substance.
Bot...
Mass transfer and heat transfer are two important concepts in chemical engineering.
Mass transfer involves the movement of mass from one place to another, often through a fluid medium.
Heat transfer involves the movement of thermal energy from one place to another, often through a temperature gradient.
Both mass transfer and heat transfer are important in many chemical engineering processes, such as distillation, evaporat...
Modes of heat transfer include conduction, convection, and radiation.
Conduction is the transfer of heat through a material without any movement of the material itself.
Convection is the transfer of heat through the movement of fluids or gases.
Radiation is the transfer of heat through electromagnetic waves.
Examples include touching a hot stove (conduction), boiling water (convection), and feeling the warmth of the sun (r
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