Lab Operator Interview Questions and Answers

Natural gas, hydrocarbons, and liquid hydrocarbons are all forms of fossil fuels used for energy production.

• Natural gas is a mixture of hydrocarbons, primarily methane, found underground and used as a fuel for heating and electricity generation.

• Hydrocarbons are organic compounds made up of hydrogen and carbon atoms, found in fossil fuels like oil and natural gas.

• Liquid hydrocarbons are hydrocarbons that exist in liquid form at room temperature, such as crude oil and gasoline.

NABL & ISO 17005 are accreditation bodies and standards for testing and calibration laboratories.

• NABL stands for National Accreditation Board for Testing and Calibration Laboratories

• ISO 17005 is the international standard for testing and calibration laboratories

• Both focus on ensuring laboratories meet specific requirements and comply with standards

• Requirements include quality management systems, technical competence, and impartiality

• Compliance with NABL and ISO 17005 demonstr...read more

The standard operating procedure for hydrocarbon sampling and analysis as per ASTM involves following specific guidelines for sample collection, preparation, and testing.

• Ensure proper sample collection techniques to avoid contamination

• Follow ASTM guidelines for sample preservation and storage

• Use appropriate analytical methods for hydrocarbon analysis

• Calibrate equipment regularly to ensure accurate results

• Document all steps and results in a detailed report

GLP is a set of principles intended to ensure the quality and integrity of non-clinical laboratory studies.

• GLP is a quality system concerned with the organizational process and conditions under which non-clinical health and environmental safety studies are planned, performed, monitored, recorded, archived, and reported.

• It ensures that data are reliable and accurate, and that the study report accurately reflects the conduct of the study.

• GLP regulations are typically enforced b...read more

Vapour refrigeration cycle is a thermodynamic process used in refrigeration systems to transfer heat from a low-temperature source to a high-temperature sink.

• It involves the use of a refrigerant that evaporates and condenses to absorb and release heat.

• The cycle consists of four main components: compressor, condenser, expansion valve, and evaporator.

• Examples of vapour refrigeration systems include air conditioning units, refrigerators, and heat pumps.