Abb Management Services Interview Questions and Answers

I would investigate the root cause of the unstable slump and take corrective actions.

• Check the concrete mix design and adjust if necessary

• Verify the calibration of the slump cone and test equipment

• Inspect the batching and mixing process for errors

• Consult with concrete supplier and adjust delivery schedule

• Notify project management and stakeholders of delays

• Ensure proper disposal of rejected concrete

• Implement preventive measures to avoid future rejections

The ITP for taking over a shell and core floor for final finishing and fitout would involve a thorough inspection and testing process.

• Conduct a detailed inspection of the shell and core floor to identify any defects or issues that need to be addressed before final finishing and fitout can begin

• Develop a comprehensive testing plan to ensure that all systems and components are functioning properly and meet the required standards

• Establish clear communication channels with all st...read more

Specific gravity of coarse aggregate is typically between 2.6 to 2.9.

• Specific gravity is the ratio of the weight of a given volume of aggregate to the weight of an equal volume of water.

• It is an important parameter in concrete mix design as it helps in determining the weight of aggregate required for a given volume of concrete.

• The specific gravity of coarse aggregate used in concrete typically ranges from 2.6 to 2.9.

• Higher specific gravity indicates denser and stronger aggreg...read more

The consumption of bricks per cubic meter of masonry wall varies depending on the type of bricks and the thickness of the wall.

• The consumption of bricks for a solid brick wall will be different from a cavity wall.

• The size and type of bricks used will also impact the consumption rate.

• Generally, for solid brick walls, the consumption can range from 500 to 700 bricks per cubic meter.

• For cavity walls, the consumption can be lower, around 300 to 400 bricks per cubic meter.

Initial setting time is the time when the concrete starts to harden, while final setting time is when it is completely hardened.

• Initial setting time typically ranges from 30 minutes to 1.5 hours.

• Final setting time is usually around 6 to 10 hours.

• Factors affecting setting time include temperature, cement type, water-cement ratio, and admixtures.

• Example: A rapid-setting concrete may have an initial setting time of 5 minutes and a final setting time of 30 minutes.