Uniproducts Interview Questions and Answers

Initial and final setting time of cement is tested after 30 and 600 minutes respectively.

• Initial setting time is the time taken by cement to harden enough to resist certain pressure.

• Final setting time is the time taken by cement to harden completely and attain its full strength.

• The standard initial setting time for ordinary Portland cement is 30 minutes and final setting time is 600 minutes.

• The setting time can be affected by factors like temperature, water-cement ratio, and ...read more

Initial and final setting of cement are the stages when the cement changes from a plastic state to a solid state.

• Initial setting time is the time taken by the cement to lose its plasticity and become rigid enough to withstand some pressure.

• Final setting time is the time taken by the cement to completely lose its plasticity and become completely rigid.

• The initial setting time of cement should not be less than 30 minutes and the final setting time should not be more than 10 hou...read more

The density of cement is a measure of its mass per unit volume.

• Density is typically expressed in kilograms per cubic meter (kg/m³).

• The density of cement can vary depending on factors such as the type of cement and its composition.

• For example, the density of ordinary Portland cement is around 1440 kg/m³.

• The density of cement is an important parameter in construction and engineering as it affects the strength and durability of concrete.

• Density can be determined through laborato...read more

AIV test stands for Acceptance Inward Verification test.

• AIV test is performed to verify the quality and functionality of incoming materials or components.

• It ensures that the received materials meet the specified requirements and standards.

• The test may involve visual inspection, measurements, functional testing, or other relevant checks.

• AIV test helps in preventing the use of defective or substandard materials in production.

• It is an essential part of quality control to maintai...read more

The IS code for soil is IS 2720.

• IS 2720 is the Indian Standard code for soil testing.

• It provides guidelines for various tests to be conducted on soil.

• The tests include determination of moisture content, specific gravity, and particle size distribution.

• The code also covers tests for shear strength, compressibility, and permeability of soil.

• IS 2720 is regularly updated to incorporate new testing methods and standards.