Assistant Manager - QA & QC Interview Questions and Answers

Mix design of flexible pavement and Rigid pavement involves different methods and standards.

• Flexible pavement mix design is based on MS-2 and uses marshal curves parameters.

• Rigid pavement mix design is prepared on a trial basis using MORT S-600 and IRC -58-2004.

• Flexible pavement uses bituminous mixes while rigid pavement uses PQC mix design.

• MORT&H s-500 and IRC-37 are used for flexible pavement mix design.

• MORT S-600 and IRC -58-2004 are used for rigid pavement mix design.

The lapping size depends on the difference in diameter used in columns.

• The lapping size is the overlap length required for the reinforcement bars in columns.

• It is determined by the difference in diameter between the bars being lapped.

• The larger the difference in diameter, the longer the lapping size needs to be.

• The lapping size ensures proper transfer of load between the bars and prevents shear failure.

• For example, if a 16mm diameter bar is lapped with a 12mm diameter bar, th...read more

Inspection methods and quality control in accordance with ISO 9001-2015.

• Inspection methods should be clearly defined and documented.

• Quality control should be implemented at every stage of the project.

• ISO 9001-2015 standards should be followed to ensure quality and consistency.

• Work methods should be regularly reviewed and updated to improve efficiency and effectiveness.

Quality assurance ensures that products or services meet customer expectations while validation confirms that the product meets the intended use and requirements.

• Quality assurance involves the process of monitoring and evaluating the product or service to ensure that it meets the required standards.

• Validation is the process of verifying that the product or service meets the intended use and requirements.

• Quality assurance focuses on preventing defects while validation focuses ...read more

Gypsum plaster is a building material made of gypsum while putty is a material used for filling gaps and cracks.

• Gypsum plaster is used for coating walls and ceilings while putty is used for filling gaps and cracks.

• Gypsum plaster is a thicker material compared to putty.

• Gypsum plaster is more durable and can withstand moisture while putty is not suitable for wet areas.

• Gypsum plaster is applied in a single coat while putty requires multiple coats for a smooth finish.

The density of fly ash refers to its mass per unit volume.

• Density is an important property of fly ash as it affects its handling and storage.

• The density of fly ash can vary depending on factors such as its composition and particle size.

• Typically, the density of fly ash ranges from 1.8 to 2.8 grams per cubic centimeter (g/cm³).

• Higher density fly ash is generally more desirable as it indicates a higher content of solid particles.

• Density can be measured using various methods suc...read more