Bright Packaging Electrical Technician Interview Questions, Process, and Tips

Transformer types include step-up, step-down, isolation, autotransformer, and instrument transformer.

• Step-up transformer increases voltage while decreasing current

• Step-down transformer decreases voltage while increasing current

• Isolation transformer separates primary and secondary windings

• Autotransformer has a single winding with multiple taps for voltage adjustment

• Instrument transformer is used for measuring current or

I have worked with various control voltage applications in my previous roles.

• I have experience with control voltage applications in industrial machinery and equipment.

• I am familiar with troubleshooting and repairing control voltage circuits.

• I have worked with PLCs and other control systems that use control voltage.

• Examples of control voltage applications I have worked with include motor starters, relays, and solenoids.

Yes, cable size estimation is based on the required load and can be calculated using various formulas.

• Cable size estimation is important to ensure safety and efficiency of electrical systems

• The required load can be calculated by adding up the wattage of all the devices that will be connected to the cable

• The cable size can then be estimated using formulas such as the voltage drop formula or the NEC ampacity tables

• Factor...read more

AC voltage changes direction periodically while DC voltage flows in one direction only.

• AC voltage is used for power transmission over long distances while DC voltage is used for electronic devices.

• AC voltage can be easily stepped up or down using transformers while DC voltage cannot.

• AC voltage is measured in RMS (Root Mean Square) while DC voltage is measured in average value.

• Examples of AC voltage sources include powe...read more

kWh, kVAh, kVAR, kVARh are units of energy and power. They differ in terms of their measurement and usage.

• kWh is a unit of energy and is used to measure the amount of energy consumed over time

• kVAh is a unit of apparent power and is used to measure the total amount of energy supplied to a system

• kVAR is a unit of reactive power and is used to measure the power that is not used to perform work

• kVARh is a unit of reactive e...read more

Kw to hp conversions

• 1 kW = 1.34 hp

• To convert kW to hp, multiply by 1.34

• To convert hp to kW, divide by 1.34