Exportify Interview Questions and Answers

M20 concrete typically achieves about 70% of its strength in 7 days, approximately 15-17 kN/mm².

• M20 grade concrete has a characteristic compressive strength of 20 MPa (20 N/mm²) at 28 days.

• After 7 days, M20 concrete generally reaches about 65-70% of its 28-day strength.

• This means the nominal strength after 7 days is approximately 13-14 N/mm², or 13-14 kN/mm².

• Factors like curing conditions and temperature can affect the strength development.

A toilet bathroom pipeline should have a slope of 1/4 inch per foot for effective drainage.

• A slope of 1/4 inch per foot is standard for toilet drain lines.

• This slope ensures proper flow and prevents clogs.

• For example, a 10-foot pipe should drop 2.5 inches from the toilet to the sewer line.

• Too steep a slope can cause waste to flow too quickly, leading to blockages.

To check anodized aluminum depth, use methods like thickness gauges or chemical tests for accurate measurement.

• Use a micrometer or caliper to measure the thickness of the anodized layer directly.

• Employ a portable anodizing thickness gauge, which uses eddy current or ultrasonic methods.

• Conduct a chemical test using a specific anodizing depth measurement solution that reacts with the anodized layer.

• Perform a scratch test to visually assess the depth, though this may damage the ...read more

Thermodynamics is a branch of physics that deals with heat, work, and energy transfer.

• Thermodynamics is based on the first and second laws of thermodynamics.

• It involves studying the relationships between heat, work, and energy in a system.

• Key concepts include entropy, enthalpy, and heat transfer.

• Applications of thermodynamics include engines, refrigeration, and power plants.

TSS performs various types of testing including functional, regression, performance, and security testing.

• Functional testing ensures that the software meets the specified requirements.

• Regression testing ensures that changes made to the software do not introduce new defects.

• Performance testing checks the software's speed, scalability, and stability under various loads.

• Security testing checks the software's vulnerability to attacks and ensures that it meets security standards.

• O...read more