NM ES-3 TEST WITH VERRIFIED ANSWERS
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 -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 evacuation 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 antennas. - 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
, 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 conductors? - ANSWER -6
feet
What is the minimum separation required between coaxial
cable in a CATV system and lighting conductors - ANSWER -6
feet
On a radio antenna receiving station what is the minimum
clearance between lead-in conductors 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)
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 -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 evacuation 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 antennas. - 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
, 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 conductors? - ANSWER -6
feet
What is the minimum separation required between coaxial
cable in a CATV system and lighting conductors - ANSWER -6
feet
On a radio antenna receiving station what is the minimum
clearance between lead-in conductors 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)
