PTRT 1491 Chapter 14 - Power Distribution

1. A(n) ____________ ground receptacle minimizes electrical noise by providing a separate grounding path

• isolated

• GFCI

• duplex

• standard

2. ______________ is considered normal ambient temperature for transformer installations

• 20°F

• 20°C

• 40°C

• 40°F

3. A(n) __________ is an assemblage of equipment installed for switching, changing or regulating the voltage of electricity

• overload relay

• main disconnect

• branch circuit

• substation

4. A _____________ conductor does not normally carry current, except during a fault

• neutral

• grounding

• hot

• switched

5. ______________ are used to step down higher voltage transmitted to the voltage level required by the consumer

• Receptacles

• Transformers

• Semiconductors

• Rectifiers

6. _____________ occurs when loads on a transformer are placed so that each coil of the transformer carries the same amount of current

• Continuity

• Equilibrium

• Electrical balance

• Grounding fault

7. A(n) _______________ is the portion of a distribution system between the final overcurrent device and the outlet (receptacle) or load connected to it

• duplex receptacle

• branch circuit

• main disconnect

• overload relay

8. In a three-phase circuit, L2 can also be marked/called ______________

• V

• R

• T

• S

9. If phase B is colored orange and/or is the high phase, the distribution system is a _____________ service

• 120 VAC, single-phase

• DC

• wye-connected

• delta-connected

10. A(n) __________ configuration is a transformer connection that has one end of each transformer coil connected together

• wye

• delta

• omega

• triangle