Dubai Electricity & Water Authority (DEWA) Electrical Technician Interview Questions and Answers

SCADA stands for Supervisory Control and Data Acquisition. It is a system used for monitoring and controlling industrial processes.

• SCADA systems are used in various industries such as oil and gas, water treatment, and manufacturing.

• They consist of hardware and software components that collect and analyze data from sensors and other devices.

• SCADA systems allow operators to remotely monitor and control processes, making ...read more

I am seeking new challenges and growth opportunities in my career.

• Seeking new challenges and growth opportunities

• Looking for a change to broaden my skillset

• Interested in working with a new team and learning from their expertise

The fuse rating for a 22 kW motor depends on the starting current and the type of motor.

• The starting current of the motor should be considered when selecting the fuse rating.

• The type of motor (e.g. induction, synchronous) also affects the fuse rating.

• Consult the motor manufacturer's specifications or a qualified electrician for the appropriate fuse rating.

• A general rule of thumb is to use a fuse rating of 125% of the m

Star delta starter is used to reduce starting current and torque in induction motors.

• Reduces starting current and torque in induction motors

• Protects motor windings from damage

• Increases motor lifespan

• Used for high power motors

• Commonly used in industries such as oil and gas, mining, and manufacturing

The unit of vibration is Hertz (Hz).

• Vibration is a measure of the frequency of oscillation of a mechanical or electrical system.

• Hertz is the unit of frequency, defined as one cycle per second.

• Vibration can be measured using instruments such as accelerometers and vibrometers.

• Vibration is an important consideration in the design and maintenance of electrical systems.

• Examples of electrical systems that may experience vibr...read more

A multimeter is an electronic device used to measure voltage, current, and resistance in electrical circuits.

• It can measure AC and DC voltage

• It can measure AC and DC current

• It can measure resistance

• It can also measure other electrical parameters such as capacitance and frequency

• It typically has a digital display for easy reading

• Examples of multimeter brands include Fluke, Klein Tools, and Extech