GE Vernova Civil Quality Engineer Interview Questions, Process, and Tips

Quality assurance focuses on preventing defects, while quality control focuses on identifying and correcting defects.

• Quality assurance is a proactive process that involves establishing standards and procedures to prevent defects.

• Quality control is a reactive process that involves inspecting and testing products to identify and correct defects.

• Quality assurance is concerned with the overall process and system, while qua...read more

Sand is a naturally occurring granular material composed of finely divided rock and mineral particles.

• Sand is formed by the erosion of rocks, minerals, and organic materials.

• It is commonly found on beaches, deserts, riverbeds, and in construction materials.

• The size of sand particles can range from 0.063 mm to 2 mm.

• Sand is used in various industries such as construction, glass manufacturing, and electronics.

• Different ty...read more

Grading of aggregates is important for ensuring the quality and strength of concrete.

• Grading helps to ensure that the aggregates are evenly distributed in the concrete mix.

• It helps to reduce the amount of cement needed for a given strength of concrete.

• Proper grading can improve the workability and finishability of the concrete.

• It can also help to reduce the risk of cracking and shrinkage in the finished product.

• Example...read more

Silt is harmful for concrete as it reduces its strength and durability.

• Silt particles are fine and can fill the voids in concrete, reducing its strength.

• Silt can increase the water demand of concrete, affecting its workability.

• Silt can cause segregation and bleeding in concrete, leading to poor quality.

• Silt can react with cement and other constituents, compromising the chemical reactions.

• Silt can result in a rough surf...read more

During of concrete is done to ensure proper curing and strength development.

• During of concrete refers to the process of maintaining the moisture and temperature conditions for the concrete to cure properly.

• Proper curing is essential for the hydration process of cement, which leads to the development of strength and durability in concrete.

• During of concrete helps to prevent cracking, shrinkage, and surface defects.

• It al...read more

Setting time of concrete refers to the time it takes for the concrete to harden and gain strength.

• Setting time is influenced by factors like temperature, water-cement ratio, and type of cement used.

• Initial setting time is typically around 30 minutes to 1.5 hours.

• Setting time can be determined using various methods such as the Vicat apparatus or penetration resistance tests.

If aggregate failed in Petrography test, what are the steps to be adopted?

• Identify the cause of failure

• Check if the sample was representative

• Re-test the sample to confirm the failure

• Notify the supplier and request for replacement

• Investigate the quality control measures of the supplier

• Consider alternative sources of aggregate

RCPT stands for Rapid Chloride Permeability Test, used to measure the permeability of concrete to chloride ions.

• RCPT is a non-destructive test used to evaluate the durability of concrete.

• It measures the rate at which chloride ions penetrate the concrete.

• The test involves applying an electrical charge to the concrete sample and measuring the current flow.

• The results of the test can be used to determine the likelihood of...read more

Fly ash and admixtures commonly used in heavy construction include Class F fly ash and water-reducing admixtures.

• Class F fly ash, which is produced from burning anthracite or bituminous coal, is commonly used in heavy construction.

• Water-reducing admixtures, such as plasticizers or superplasticizers, are often added to concrete mixes in heavy construction to improve workability and reduce water content.

• Other types of fl...read more

Moisture correction is calculated by adjusting the measured moisture content of a material to a standard moisture content.

• Determine the measured moisture content of the material

• Determine the standard moisture content for the material

• Calculate the moisture correction factor using the formula: MCf = (SMC - MMC) / MMC

• Apply the moisture correction factor to adjust the measured moisture content: Corrected MC = Measured MC *