What is the minimum clearance to the edge of a wood stud for a wire hole?
ANSWER :
1 1/4 inches(NEC 300.4 A 1)
What is the minimum separation between a class 1 fire alarm circuit conductor and a class 2
or class 3 circuit?
ANSWER :
1/4 inch
A basic alarm system will have __ power sources.
ANSWER :
2
What is the minimum required clearance between a receiving antenna and 250 volt line not
insulated?
ANSWER :
2 Feet
The minimum clearance for an antenna to other conductors is?
ANSWER :
2 Feet (NEC 810.13)
How far away must communications cables be from electric, light, or power conductors
ANSWER :
1
,2 inches
what is the maximum blink rate on a strobe light per second?
ANSWER :
2 (NFPA 72 18.5.2.1)
On a voice alarm system what is the minimum number of cycles it has to report an evacua-
tion procedure?
ANSWER :
2 (NFPA 72 24.4.1.2.1)
What is the minimum required height for a propriety manual pull fire alarm?
ANSWER :
3 1/2 feet or 42 inches
An overhead feeder must have a clearance of __ from chimneys, radio, and television anten-
nas.
ANSWER :
3 Feet (NEC 225.19 B)
The NEC classifies Continuous Load as equipment running at a maximum load of __ ____?
ANSWER :
3 hours
A continuous load is a load where the maximum current is expected to continue for a certain
length of time. This amount of time is?
ANSWER :
3 hours or more
2
, The minimum head room of working space above service equipment, switchboards, panel
boards, or motor control centers shall be at least:
ANSWER :
6.5 feet
What is the minimum required separation between communication cables and lighting con-
ductors?
ANSWER :
6 feet
What is the minimum separation required between coaxial cable in a CATV system and light-
ing conductors
ANSWER :
6 feet
On a radio antenna receiving station what is the minimum clearance between lead-in con-
ductors and conductors forming a part of a lightning protection system?
ANSWER :
6 feet
What is the minimum length of a grounding rod in an application of less than 50 volts?
ANSWER :
8 Feet (NEC 250.5.2.5)
Utility owned low-voltage communication, radio, and television coaxial cables may pass di-
rectly over a pool if at a minimum height of:
ANSWER :
10 feet
3
ANSWER :
1 1/4 inches(NEC 300.4 A 1)
What is the minimum separation between a class 1 fire alarm circuit conductor and a class 2
or class 3 circuit?
ANSWER :
1/4 inch
A basic alarm system will have __ power sources.
ANSWER :
2
What is the minimum required clearance between a receiving antenna and 250 volt line not
insulated?
ANSWER :
2 Feet
The minimum clearance for an antenna to other conductors is?
ANSWER :
2 Feet (NEC 810.13)
How far away must communications cables be from electric, light, or power conductors
ANSWER :
1
,2 inches
what is the maximum blink rate on a strobe light per second?
ANSWER :
2 (NFPA 72 18.5.2.1)
On a voice alarm system what is the minimum number of cycles it has to report an evacua-
tion procedure?
ANSWER :
2 (NFPA 72 24.4.1.2.1)
What is the minimum required height for a propriety manual pull fire alarm?
ANSWER :
3 1/2 feet or 42 inches
An overhead feeder must have a clearance of __ from chimneys, radio, and television anten-
nas.
ANSWER :
3 Feet (NEC 225.19 B)
The NEC classifies Continuous Load as equipment running at a maximum load of __ ____?
ANSWER :
3 hours
A continuous load is a load where the maximum current is expected to continue for a certain
length of time. This amount of time is?
ANSWER :
3 hours or more
2
, The minimum head room of working space above service equipment, switchboards, panel
boards, or motor control centers shall be at least:
ANSWER :
6.5 feet
What is the minimum required separation between communication cables and lighting con-
ductors?
ANSWER :
6 feet
What is the minimum separation required between coaxial cable in a CATV system and light-
ing conductors
ANSWER :
6 feet
On a radio antenna receiving station what is the minimum clearance between lead-in con-
ductors and conductors forming a part of a lightning protection system?
ANSWER :
6 feet
What is the minimum length of a grounding rod in an application of less than 50 volts?
ANSWER :
8 Feet (NEC 250.5.2.5)
Utility owned low-voltage communication, radio, and television coaxial cables may pass di-
rectly over a pool if at a minimum height of:
ANSWER :
10 feet
3
