Petrolabs India Private Lab Technician Interview Questions and Answers

Iron carbon diagram is a graphical representation of the phases of iron and carbon at different temperatures and compositions.

• It shows the relationship between carbon content and the microstructure of steel.

• It helps in predicting the properties of steel based on its composition.

• It consists of three regions: austenite, ferrite, and cementite.

• It is used in the design and production of steel products.

• Example: A high carbo...read more

The IS code for sand pouring cylinder calibration is IS 2720 (Part 28) - 1983.

• IS 2720 (Part 28) - 1983 is the Indian Standard code for the calibration of sand pouring cylinder.

• This code specifies the method for determining the field dry density of soils using a sand pouring cylinder.

• The code provides guidelines on the apparatus, procedure, and calculations involved in the calibration process.

• It ensures that the sand po...read more

The minimum CBR value of the blanket material is a measure of its strength and load-bearing capacity.

• CBR stands for California Bearing Ratio, which is a test to determine the strength of a material.

• The minimum CBR value indicates the lowest load that the material can withstand before it starts to deform or fail.

• A higher minimum CBR value indicates a stronger and more durable material.

• For example, if the minimum CBR val...read more

There are several types of tests that can be conducted on cement.

• Some common types of tests for cement include compressive strength test, fineness test, setting time test, soundness test, and heat of hydration test.

• Compressive strength test measures the ability of cement to withstand compressive loads.

• Fineness test determines the particle size of cement.

• Setting time test measures the time taken by cement to set.

• Soundne...read more