Hospitality Is Yours Lab Technician Interview Questions and Answers for Freshers

Transformers are devices that transfer electrical energy between two or more circuits through electromagnetic induction. Power factor is a measure of how effectively electrical power is being used in a circuit.

• Transformers work on the principle of electromagnetic induction, where a changing magnetic field induces a voltage in a nearby coil of wire.

• They are used to step up or step down voltage levels in electrical power...read more

ACB and VCB are types of circuit breakers used in electrical systems.

• ACB stands for Air Circuit Breaker and VCB stands for Vacuum Circuit Breaker.

• ACBs use air as the medium to extinguish the arc formed during circuit interruption.

• VCBs use vacuum as the medium to extinguish the arc formed during circuit interruption.

• Both ACBs and VCBs are used to protect electrical equipment from overcurrent and short circuits.

• ACBs are ...read more

Elevator breakdown refers to the malfunction or failure of an elevator system.

• Elevator breakdown can occur due to various reasons such as mechanical issues, power failure, or sensor malfunction.

• When an elevator breaks down, it may get stuck between floors, preventing people from using it.

• In such situations, technicians are called to diagnose and fix the problem to restore the elevator's functionality.

• Regular maintenanc...read more

There are several types of elevator controllers used in different elevator systems.

• Relay-based controllers: These controllers use relays to control the movement of the elevator car.

• Microprocessor-based controllers: These controllers use microprocessors to control the elevator's operation.

• Hydraulic controllers: These controllers are specifically designed for hydraulic elevator systems.

• Traction controllers: These control...read more

Elevator control system is responsible for managing the movement and operation of elevators.

• Elevator control system coordinates the movement of multiple elevators in a building.

• It ensures efficient and safe transportation of passengers or goods between different floors.

• The system includes components like buttons, sensors, motors, and a central control unit.

• It uses algorithms to optimize elevator routes and minimize wai...read more

The types of motors used for lift installation include AC motors, DC motors, and gearless motors.

• AC motors are commonly used in lifts due to their reliability and ability to handle heavy loads.

• DC motors are used in lifts that require precise control and smooth operation.

• Gearless motors are used in high-rise buildings as they provide high torque and require less maintenance.

• Examples of AC motor brands used in lifts incl...read more

I worked in a fast-paced environment at my previous company, where attention to detail and accuracy were crucial.

• Performed various laboratory tests and experiments

• Maintained and calibrated laboratory equipment

• Analyzed data and prepared reports

• Followed strict safety protocols and procedures

• Collaborated with team members on projects