QA QC Incharge Interview Questions and Answers

Designing a specific grade of concrete involves determining the mix proportions of cement, aggregates, water, and additives.

• Identify the required strength and durability characteristics for the concrete grade.

• Select suitable materials such as cement, aggregates, water, and admixtures based on the project requirements.

• Calculate the mix proportions using the desired water-cement ratio and aggregate-cement ratio.

• Perform trial mixes and tests to ensure the concrete meets the spec...read more

I have knowledge of various lab instruments including spectrophotometer, pH meter, autoclave, centrifuge, and pipettes.

• Spectrophotometer

• pH meter

• Autoclave

• Centrifuge

• Pipettes

Organic compounds contain carbon and are typically found in living organisms, while inorganic compounds do not contain carbon and are often minerals or salts.

• Organic compounds contain carbon-carbon or carbon-hydrogen bonds

• Inorganic compounds do not contain carbon-hydrogen bonds

• Examples of organic compounds include sugars, proteins, and fats

• Examples of inorganic compounds include salts, metals, and minerals

Designing a grade of PQC concrete involves selecting appropriate materials and proportions to meet strength and durability requirements.

• Select appropriate grade of cement (e.g. OPC 53 grade)

• Choose suitable aggregates (e.g. 20mm downgraded aggregates)

• Determine water-cement ratio based on desired strength and workability

• Include admixtures for improved workability and durability

• Follow relevant standards and specifications (e.g. IS 456:2000)