20+ Enviro Analysts & Engineers Interview Questions and Answers

To manufacture 10 lakh tablets of paracetamol 500 mg API, you would need a certain amount of grams or kilograms of API.

• To find the amount of API needed, we need to calculate the total quantity required for 10 lakh tablets.

• First, convert 10 lakh tablets to the number of milligrams (mg) by multiplying by 500 mg (the dosage of each tablet).

• Then, convert the total milligrams to grams or kilograms by dividing by 1000.

• The resulting value will be the amount of API needed to manufact...read more

Qualitative analysis is subjective and deals with non-numerical data while quantitative analysis is objective and deals with numerical data.

• Qualitative analysis deals with non-numerical data while quantitative analysis deals with numerical data.

• Qualitative analysis is subjective while quantitative analysis is objective.

• Qualitative analysis is used to gain insights and understanding while quantitative analysis is used to measure and quantify.

• Examples of qualitative analysis in...read more

The quality control department ensures that pharmaceutical products meet the required standards and regulations.

• Ensuring compliance with regulatory requirements

• Testing and analyzing raw materials, in-process samples, and finished products

• Identifying and resolving quality issues

• Maintaining documentation and records

• Conducting audits and inspections

• Collaborating with other departments to improve quality and efficiency

Dose of any drug for children can be calculated based on their weight and age.

• Calculate the child's weight in kilograms

• Determine the appropriate dosage based on the child's age and weight

• Consult drug reference guides or a pharmacist for specific dosing information

• Adjust the dosage based on the child's response to the medication

• Consider any potential side effects or drug interactions

Hard and soft gelatin capsules are two types of capsules used for oral medication.

• Hard gelatin capsules are made of two pieces that fit together and are filled with dry or powdered medication.

• Soft gelatin capsules are made of a single piece and are filled with liquid or semi-solid medication.

• Hard capsules dissolve slowly in the stomach, while soft capsules dissolve quickly.

• Soft capsules are often used for oil-based medications, while hard capsules are used for dry or powdered...read more

Dissolution test measures the rate of drug release from a dosage form while desentigration test measures the time taken for a dosage form to break down into smaller particles.

• Dissolution test measures the amount of drug released from a dosage form over time

• Desentigration test measures the time taken for a dosage form to break down into smaller particles

• Both tests are important in ensuring the quality and efficacy of a drug

• For example, a tablet that does not dissolve properly ...read more

There are 11 systems in the human body, each with a specific function.

• The circulatory system pumps blood throughout the body.

• The respiratory system helps us breathe.

• The digestive system breaks down food and absorbs nutrients.

• The nervous system controls and coordinates body functions.

• The endocrine system produces hormones that regulate bodily functions.

• The immune system defends against infections and diseases.

• The lymphatic system helps remove waste and toxins from the body.

• The...read more

Pharmaceutical industry involves research, development, manufacturing, and distribution of drugs and medicines.

• Pharmaceutical industry is highly regulated by government agencies such as FDA

• It involves extensive research and development to create new drugs and improve existing ones

• Manufacturing of drugs requires strict adherence to quality control standards

• Distribution of drugs involves complex supply chain management

• Examples of pharmaceutical companies include Pfizer, Johnson...read more

Blood pH is typically between 7.35 and 7.45, while urine pH can vary depending on diet and health.

• Blood pH is tightly regulated by the body to maintain homeostasis

• Urine pH can be affected by factors such as diet, medication, and certain medical conditions

• Normal urine pH ranges from 4.6 to 8.0

• Acidic urine (pH below 7.0) can indicate conditions such as metabolic acidosis or respiratory acidosis

• Alkaline urine (pH above 7.0) can indicate conditions such as urinary tract infection...read more

Hardness of tablet refers to the tablet's ability to withstand pressure without breaking or crumbling.

• Hardness is an important parameter in tablet manufacturing.

• It is measured using a hardness tester.

• The hardness of a tablet affects its dissolution rate and bioavailability.

• Different types of tablets have different hardness requirements.

• For example, chewable tablets need to be softer than regular tablets.

• The USP sets standards for tablet hardness.

• Tablets that are too hard or t...read more

Room temperature is the temperature range that is comfortable for humans and varies between 20-25°C (68-77°F).

• Room temperature is the temperature range that is comfortable for humans.

• It varies between 20-25°C (68-77°F).

• It is the temperature at which most substances are stable and have a moderate rate of reaction.

• It is important to maintain room temperature in certain industries like pharmaceuticals and food processing.

• Room temperature can also vary depending on the location a...read more

Friability test is a method to determine the durability of tablets or granules by measuring the amount of powder generated due to friction.

• It is a quality control test performed on tablets or granules.

• The test involves tumbling the tablets or granules in a rotating drum for a specified time.

• After the test, the tablets or granules are weighed to determine the amount of powder generated.

• The test helps to ensure that the tablets or granules can withstand the rigors of handling a...read more

The molecular weight of a hydrogen atom is 1.008 u.

• The molecular weight of an atom is the sum of the masses of its protons, neutrons, and electrons.

• The molecular weight of hydrogen is calculated by adding the mass of its one proton and one electron.

• The molecular weight of hydrogen is often used as a reference point for calculating the molecular weight of other elements and compounds.

Conductivity is the measure of a material's ability to conduct electricity.

• Conductivity is a physical property of materials.

• It is measured in siemens per meter (S/m) or millisiemens per centimeter (mS/cm).

• Metals are good conductors of electricity, while non-metals are poor conductors.

• Conductivity is affected by factors such as temperature, pressure, and impurities in the material.

• It is used in various industries, including electronics, metallurgy, and water treatment.

An analytical balance is a highly sensitive weighing device used to measure small quantities of substances.

• It is used in laboratories for precise measurements

• It can measure up to four decimal places

• It is enclosed in a glass case to prevent air currents from affecting the measurement

• It requires regular calibration to ensure accuracy

Coatings can be classified into various types based on their composition and application.

• Organic coatings - made of carbon-based compounds

• Inorganic coatings - made of non-carbon-based compounds

• Metallic coatings - made of metals or metal alloys

• Ceramic coatings - made of ceramics or glass

• Polymer coatings - made of polymers or plastics

• Electroplating coatings - deposition of a metal onto a conductive surface

• Conversion coatings - chemical conversion of a metal surface to improve i...read more

Tablet defect refers to any deviation from the expected quality or standard of a tablet.

• Tablet defects can include issues with the appearance, such as discoloration, chipping, or cracking.

• Defects can also include issues with the tablet's weight, size, or shape.

• Other defects may include issues with the tablet's dissolution rate or potency.

• Common causes of tablet defects include problems with the manufacturing process, improper storage, or issues with the raw materials used.

• Tab...read more

Molecular weight of water is 18.01528 g/mol.

• The molecular formula of water is H2O.

• The atomic weight of hydrogen is 1.008 and oxygen is 15.999.

• Multiplying the atomic weight of hydrogen by 2 and adding the atomic weight of oxygen gives the molecular weight of water.

• The molecular weight of water is important in various chemical and biological processes.

pH is a measure of the acidity or basicity of a solution.

• pH stands for 'potential of hydrogen'

• It is measured on a scale of 0-14

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

• pH is important in many industries, including food and beverage production, agriculture, and medicine