Assistant Quality Material Engineer Interview Questions and Answers

Answering technical questions related to material engineering and construction practices.

• LL for subgrade soil and PI depend on the type of soil and its intended use.

• Frequency of cube casting at site depends on the project specifications and requirements.

• Slump required for RCC and pump of concrete work depends on the mix design and project specifications.

• Quantity per square meter SS1 and RS1 for bituminous work depends on the thickness of the layer and project specifications.

• S...read more

Quality control tests are conducted on soil aggregates, cement, and concrete to ensure their compliance with quality standards.

• Soil aggregates are tested for particle size distribution, moisture content, and compaction characteristics.

• Cement is tested for fineness, setting time, compressive strength, and chemical composition.

• Concrete is tested for slump, compressive strength, air content, and durability.

• Various laboratory tests such as sieve analysis, Atterberg limits, and Pr...read more

CBR test is a laboratory test used to determine the strength of a soil sample.

• CBR stands for California Bearing Ratio.

• It is a penetration test that measures the load-bearing capacity of a soil sample.

• The test involves compacting the soil sample in a mold and subjecting it to a standard load.

• The ratio of the required force to penetrate the soil to the force required for a standard material is calculated.

• CBR values range from 0 to 100, with higher values indicating stronger and...read more

Chemical test in steel is a process of analyzing the composition of steel to determine its chemical properties.

• Chemical tests are used to determine the amount of carbon, sulfur, phosphorus, and other elements in steel.

• These tests are important for ensuring that the steel meets the required specifications for its intended use.

• One common chemical test is the spectrometric analysis, which uses a spectrometer to measure the amount of each element in the steel.

• Another test is the ...read more

GSB layer is a granular sub-base layer used in road construction to provide stability and support.

• GSB layer stands for Granular Sub-Base layer.

• It is typically made up of compacted aggregates like crushed stone or gravel.

• The purpose of the GSB layer is to provide a stable and solid foundation for the road pavement.

• It helps in distributing the load from the pavement to the underlying soil.

• The GSB layer also helps in preventing the upward movement of water from the subgrade.

• It i...read more