Question 1

Additional seals apply to the ____ of the Class I locations.

Accepted Answer

A)  anterior and posterior sections 
B)  distal and medial boundaries 
C)  conduit entrances 
D)  horizontal as well as vertical boundaries 
A)  anterior and posterior sections 
B)  distal and medial boundaries 
C)  conduit entrances 
D)  horizontal as well as vertical boundaries

Question 2

Type PVC conduit and Type RTRC conduit can be used when first surrounded by at least ____ of concrete, followed by a minimum cover of 24 in. (top of conduit to grade).

Accepted Answer

A)  2 in. 
B)  4 in. 
C)  8 in. 
D)  12 in. 
A)  2 in. 
B)  4 in. 
C)  8 in. 
D)  12 in.

Question 3

Class III, Division 1 and 2 portable lighting equipment shall have ____.

Accepted Answer

A)  both handles and substantial guards 
B)  sealed casings 
C)  positive airflow 
D)  cross-wiring 
A)  both handles and substantial guards 
B)  sealed casings 
C)  positive airflow 
D)  cross-wiring

Question 4

Hazardous (classified) locations divide atmospheric identifications for Class I, Divisions 1 and 2, locations into ____.

Accepted Answer

A)  Groups 1A and 2A 
B)  Categories A and B 
C)  Categories A, B, C and D 
D)  Groups A, B, C, and D 
A)  Groups 1A and 2A 
B)  Categories A and B 
C)  Categories A, B, C and D 
D)  Groups A, B, C, and D

Question 5

Sealing compound shall ____.

Accepted Answer

A)  have a melting point of 93° F or higher 
B)  cement sections of conduit together 
C)  not be affected by surrounding atmosphere or liquids 
D)  provide a seal against the passage of sparks 
A)  have a melting point of 93° F or higher 
B)  cement sections of conduit together 
C)  not be affected by surrounding atmosphere or liquids 
D)  provide a seal against the passage of sparks

Additional seals apply to the ____ of the Class I locations.

Type PVC conduit and Type RTRC conduit can be used when first surrounded by at least ____ of concrete, followed by a minimum cover of 24 in. (top of conduit to grade).

Class III, Division 1 and 2 portable lighting equipment shall have ____.

Hazardous (classified) locations divide atmospheric identifications for Class I, Divisions 1 and 2, locations into ____.

Sealing compound shall ____.

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

Services, Feeders, and Equipment

Health Care

Industrial Locations

Special Occupancies

Specific Equipment

Filters

Exam 15: Hazardous Classified Locations

Additional seals apply to the ____ of the Class I locations.

Type PVC conduit and Type RTRC conduit can be used when first surrounded by at least ____ of concrete, followed by a minimum cover of 24 in. (top of conduit to grade).

Class III, Division 1 and 2 portable lighting equipment shall have ____.

Hazardous (classified) locations divide atmospheric identifications for Class I, Divisions 1 and 2, locations into ____.

Sealing compound shall ____.

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

Services, Feeders, and Equipment

Health Care

Industrial Locations

Special Occupancies

Specific Equipment

Filters