Question 1

The ____ phase must be that phase having the higher voltage to ground on 3-phase, 4-wire, deltaconnected systems.

Accepted Answer

A)  A 
B)  C 
C)  D 
D)  B 
A)  A 
B)  C 
C)  D 
D)  B

Question 2

Premises wiring (system) is defined as ____, including power, lighting, control, and signal circuit wiring together with all their associated hardware, fittings, and wiring devices, both permanently and temporarily installed.

Accepted Answer

A)  interior and exterior wiring 
B)  interior wiring 
C)  exterior wiring 
D)  main service wiring 
A)  interior and exterior wiring 
B)  interior wiring 
C)  exterior wiring 
D)  main service wiring

Question 3

All panelboards shall have a rating not less than the ____ required for the load calculated in accordance with Part III, IV, or V of Article 220.

Accepted Answer

A)  minimum feeder capacity 
B)  maximum feeder capacity 
C)  50 % of maximum feeder capacity 
D)  50 % of minimum feeder capacity 
A)  minimum feeder capacity 
B)  maximum feeder capacity 
C)  50 % of maximum feeder capacity 
D)  50 % of minimum feeder capacity

Question 4

A drip loop's lowest point has a minimum vertical clearance of ____.

Accepted Answer

A)  9 ft 
B)  10 ft 
C)  11 ft 
D)  12 ft 
A)  9 ft 
B)  10 ft 
C)  11 ft 
D)  12 ft

Question 5

A system that supplies a ____ and is derived from a transformer rated no more than 1000 volt-amperes does not require a grounding electrode conductor.

Accepted Answer

A)  Class A, EE, AE circuit 
B)  main branch circuit 
C)  secondary circuit 
D)  Class 1, 2, or 3 circuit 
A)  Class A, EE, AE circuit 
B)  main branch circuit 
C)  secondary circuit 
D)  Class 1, 2, or 3 circuit

The ____ phase must be that phase having the higher voltage to ground on 3-phase, 4-wire, deltaconnected systems.

Premises wiring (system) is defined as ____, including power, lighting, control, and signal circuit wiring together with all their associated hardware, fittings, and wiring devices, both permanently and temporarily installed.

All panelboards shall have a rating not less than the ____ required for the load calculated in accordance with Part III, IV, or V of Article 220.

A drip loop's lowest point has a minimum vertical clearance of ____.

A system that supplies a ____ and is derived from a transformer rated no more than 1000 volt-amperes does not require a grounding electrode conductor.

Introduction to the National Electrical Code

Definitions

Boxes and Enclosures

Cables

Raceways and Conductors

General Provisions

Specific Provisions

Load Calculations

Services and Electrical Equipment

Comprehensive Provisions

Load Calculations

General Provisions

Nondwelling Load Calculations

Hazardous Classified Locations

Health Care

Industrial Locations

Special Occupancies

Specific Equipment

Filters

Exam 14: Services, Feeders, and Equipment

The ____ phase must be that phase having the higher voltage to ground on 3-phase, 4-wire, deltaconnected systems.

Premises wiring (system) is defined as ____, including power, lighting, control, and signal circuit wiring together with all their associated hardware, fittings, and wiring devices, both permanently and temporarily installed.

All panelboards shall have a rating not less than the ____ required for the load calculated in accordance with Part III, IV, or V of Article 220.

A drip loop's lowest point has a minimum vertical clearance of ____.

A system that supplies a ____ and is derived from a transformer rated no more than 1000 volt-amperes does not require a grounding electrode conductor.

Introduction to the National Electrical Code

Definitions

Boxes and Enclosures

Cables

Raceways and Conductors

General Provisions

Specific Provisions

Load Calculations

Services and Electrical Equipment

Comprehensive Provisions

Load Calculations

General Provisions

Nondwelling Load Calculations

Hazardous Classified Locations

Health Care

Industrial Locations

Special Occupancies

Specific Equipment

Filters