10+ Quality Control Analyst Interview Questions and Answers for Freshers

An operating system is a software that manages computer hardware and software resources. There are several ways to connect desktop to internet.

• Operating system is the backbone of a computer system.

• It manages computer hardware and software resources.

• Examples of operating systems are Windows, macOS, Linux, etc.

• To connect a desktop to the internet, one can use Ethernet cable, Wi-Fi, or cellular network.

• Ethernet cable provides a wired connection, Wi-Fi provides a wireless connect...read more

Tablet is a solid dosage form of medication. Tablet disintegration time is the time taken for a tablet to break down into smaller particles.

• Tablets are made by compressing a mixture of active ingredients and excipients.

• Disintegration time is important for drug absorption and efficacy.

• Factors affecting disintegration time include tablet composition, size, and shape.

• Disintegration time can be measured using various methods such as USP apparatus or disintegration testers.

• Example...read more

HPLC is a high-performance liquid chromatography used for separating, identifying, and quantifying components in a mixture.

• HPLC consists of a pump, injector, column, detector, and data system.

• The pump is used to deliver the mobile phase at a constant flow rate.

• The injector is used to introduce the sample into the mobile phase.

• The column is where the separation of components occurs.

• The detector is used to detect the separated components and generate a signal.

• The data system is...read more

HPLC stands for High Performance Liquid Chromatography. It is a technique used to separate, identify, and quantify components in a mixture.

• HPLC uses a stationary phase and a mobile phase to separate components based on their chemical properties.

• The stationary phase is typically a solid or liquid packed into a column, while the mobile phase is a liquid that flows through the column.

• Components in the mixture interact differently with the stationary and mobile phases, causing th...read more

Remote desktop process allows users to access and control a computer from a remote location.

• Remote desktop process enables users to connect to a computer remotely and control it as if they were physically present.

• It involves using a client software on the local computer to establish a connection with the remote computer.

• The remote computer must have the necessary server software installed and configured to accept remote connections.

• Once connected, the user can view the remote...read more

The number of grams of solute dissolved in one liter of solution is known as the concentration of the solution.

• Concentration is typically expressed in units such as grams per liter (g/L) or molarity (mol/L).

• To calculate concentration, divide the mass of the solute by the volume of the solution.

• For example, if 10 grams of salt are dissolved in 1 liter of water, the concentration of the solution is 10 g/L.

GC stands for Gas Chromatography. Its principle is based on the separation of components of a mixture based on their partitioning between a stationary phase and a mobile phase.

• GC separates components of a mixture based on their partitioning between a stationary phase and a mobile phase

• It involves injecting a sample into a heated inlet, vaporizing it and then separating the components using a column

• The separated components are then detected and analyzed based on their retentio...read more

Learn to use Google Sheets for date-based calculations with SUMIF and other functions.

• Use SUMIF to sum values based on criteria, e.g., =SUMIF(A:A, "2023-01-01", B:B) sums values in B where A is Jan 1, 2023.

• Combine with MONTH function: =SUMIF(A:A, MONTH(A:A)=1, B:B) sums values in B for January.

• Use DATE function for dynamic date ranges: =SUMIF(A:A, ">="&DATE(2023,1,1), B:B) for values from Jan 1, 2023.

• For monthly totals, use ARRAYFORMULA: =ARRAYFORMULA(SUMIF(MONTH(A:A), {1,2,3...read more

Normality refers to the state of being normal or typical within a certain context.

• Normality can refer to statistical normality, where data follows a normal distribution curve.

• In chemistry, normality is a measure of concentration of a solution.

• Normality can also refer to the state of being mentally or physically healthy.

• In social contexts, normality can refer to conforming to societal norms and expectations.

pH is a measure of the acidity or alkalinity of a solution on a scale of 0 to 14.

• pH stands for 'potential of Hydrogen'

• It measures the concentration of hydrogen ions in a solution

• A pH of 7 is considered neutral, below 7 is acidic, and above 7 is alkaline

• Examples: Lemon juice has a pH of around 2, pure water has a pH of 7, and baking soda has a pH of around 9

Types of titration include acid-base titration, redox titration, complexometric titration, and precipitation titration.

• Acid-base titration involves the neutralization of an acid with a base or vice versa.

• Redox titration involves a redox reaction between the analyte and titrant.

• Complexometric titration involves the formation of a complex between the analyte and titrant.

• Precipitation titration involves the formation of a precipitate between the analyte and titrant.