Unitech Interview Questions and Answers

The height of a washbasin should be between 800mm to 850mm from the finished floor level.

• The height of the washbasin should be comfortable for the user to use.

• It should be installed at a height that allows for easy access to the faucet and drain.

• The height should also be appropriate for the type of users, such as children or wheelchair users.

• The height can vary depending on the type of washbasin and the location of ins...read more

Conductor load carrying capacity refers to the maximum amount of electrical current that a conductor can safely carry without overheating or causing damage.

• The load carrying capacity of a conductor depends on its size, material, and insulation.

• The National Electrical Code (NEC) provides tables and formulas to calculate the maximum current a conductor can carry.

• Factors such as ambient temperature, installation method, a...read more

Transformers are of two types - Step-up and Step-down. Step-up transformers increase voltage while Step-down transformers decrease voltage.

• Step-up transformers are used in power plants to increase voltage for transmission over long distances.

• Step-down transformers are used in households to decrease voltage for safe use.

• Other types of transformers include isolation transformers, autotransformers, and instrument transfor...read more

Safety devices on transformers protect against overloading and overheating.

• Safety devices include fuses, circuit breakers, and thermal protectors.

• Fuses are designed to melt and break the circuit when the current exceeds a certain level.

• Circuit breakers trip and open the circuit when the current exceeds a certain level.

• Thermal protectors sense the temperature and disconnect the transformer when it exceeds a certain leve...read more

The procedure for lift installation involves several steps including site preparation, equipment delivery, installation of guide rails and car frame, electrical and mechanical connections, and testing.

• Site preparation including excavation and foundation work

• Delivery of equipment including guide rails, car frame, and lift machinery

• Installation of guide rails and car frame

• Electrical and mechanical connections including w...read more

Verify contractor bill by checking quantities, rates, and work done.

• Check quantities of materials used

• Verify rates charged for each item

• Ensure work done matches the bill

• Compare bill with contract terms

• Check for any discrepancies or errors

• Request supporting documents if necessary