Espire Infrastructure Interview Questions and Answers

Data cleaning best practices

• Remove duplicate records

• Handle missing values

• Standardize data formats

• Correct inconsistent data

• Validate data integrity

• Remove outliers

• Normalize data

• Handle data inconsistencies

• Ensure data accuracy

Logistic regression is a statistical method used to analyze and model the relationship between a categorical dependent variable and one or more independent variables.

• It is a type of regression analysis used for predicting the probability of a categorical outcome

• It is commonly used in binary classification problems

• It uses a logistic function to model the relationship between the independent variables and the dependent v...read more

QA focuses on preventing defects in the software development process, while QC focuses on identifying defects in the final product.

• QA stands for Quality Assurance and QC stands for Quality Control.

• QA is a proactive process that focuses on preventing defects by establishing processes and standards, while QC is a reactive process that focuses on identifying defects in the final product.

• QA involves activities like require...read more

To judge the product physically, perform visual inspections, measurements, and functional tests.

• Conduct visual inspections to check for any defects or abnormalities in the product's appearance.

• Perform measurements to ensure the product meets the required specifications and tolerances.

• Conduct functional tests to verify that the product performs its intended functions correctly.

• Compare the physical attributes of the prod...read more

Concrete mix design is a process of determining the proportions of various ingredients to achieve desired properties of concrete.

• Concrete mix design involves selecting suitable materials and determining their proportions.

• The mix design considers factors such as strength, workability, durability, and economy.

• IS standards, such as IS 10262, provide guidelines for concrete mix design in India.

• The design process includes c...read more

Concrete cubes break more at the middle due to the distribution of stress and the presence of weak points.

• The middle of the cube experiences the highest stress during compression testing.

• The distribution of stress is not uniform throughout the cube.

• The presence of weak points, such as air voids or aggregate discontinuities, can cause the cube to break at the middle.

• The middle of the cube is where the maximum compressiv...read more