Vem Technologies Interview Questions and Answers

DCRM Test stands for Data Consistency and Referential Integrity Testing. It is a type of testing that ensures data consistency and integrity in a database.

• DCRM Test checks for data consistency and referential integrity in a database.

• It involves verifying that data is accurate, complete, and up-to-date.

• DCRM Test helps in identifying any inconsistencies or errors in the database.

• Examples include checking for duplicate records, missing data, and incorrect references.

A substation is a facility used for transforming voltage levels in an electrical power system.

• Substations receive high voltage electricity from power plants or transmission lines

• They transform the voltage to a lower level for distribution to homes and businesses

• Substations may also include equipment for protection, control, and monitoring of the power system

Transformers are classified based on their construction and cooling methods, such as dry-type, oil-filled, and cast resin transformers.

• Transformers can be classified as dry-type, oil-filled, or cast resin based on their construction and cooling methods.

• Dry-type transformers use air as the cooling medium and are suitable for indoor applications.

• Oil-filled transformers use oil as the cooling medium and are commonly used for outdoor applications.

• Cast resin transformers use epoxy...read more

PD test stands for Partial Discharge test, used to detect insulation defects in electrical equipment.

• PD test is a non-destructive test used to evaluate the condition of insulation in electrical equipment.

• It helps in detecting partial discharges that can lead to insulation breakdown.

• The test involves applying a high voltage to the equipment and monitoring for any partial discharges.

• PD test results are used to assess the insulation condition and predict potential failures.

• Examp...read more

SF6 gas is colorless, odorless, non-toxic, and non-flammable with high dielectric strength.

• Colorless and odorless gas

• Non-toxic and non-flammable

• High dielectric strength

• Used in electrical equipment like circuit breakers and switchgear