NM ES-3 TEST QUESTIONS AND ANSWERS LATEST
UPDATE
What is the minimum clearance to the edge of a wood stud for a wire hole?
- (ANSWERS)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? - (ANSWERS)1/4 inch
A basic alarm system will have __ power sources. - (ANSWERS)2
What is the minimum required clearance between a receiving antenna and
250 volt line not insulated? - (ANSWERS)2 Feet
The minimum clearance for an antenna to other conductors is? -
(ANSWERS)2 Feet (NEC 810.13)
How far away must communications cables be from electric, light, or power
conductors - (ANSWERS)2 inches
What is the maximum blink rate on a strobe light per second? -
(ANSWERS)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? - (ANSWERS)2 (NFPA 72 24.4.1.2.1)
What is the minimum required height for a propriety manual pull fire
alarm? - (ANSWERS)3 1/2 feet or 42 inches
An overhead feeder must have a clearance of __ from chimneys, radio, and
, NM ES-3 TEST QUESTIONS AND ANSWERS LATEST
UPDATE
television antennas. - (ANSWERS)3 Feet (NEC 225.19 B)
The NEC classifies Continuous Load as equipment running at a maximum
load of __ ____? - (ANSWERS)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? -
(ANSWERS)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: -
(ANSWERS)6.5 feet
What is the minimum required separation between communication cables
and lighting conductors? - (ANSWERS)6 feet
What is the minimum separation required between coaxial cable in a CATV
system and lighting conductors - (ANSWERS)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? - (ANSWERS)6 feet
What is the minimum length of a grounding rod in an application of less
than 50 volts? - (ANSWERS)8 Feet (NEC 250.5.2.5)
Utility owned low-voltage communication, radio, and television coaxial
UPDATE
What is the minimum clearance to the edge of a wood stud for a wire hole?
- (ANSWERS)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? - (ANSWERS)1/4 inch
A basic alarm system will have __ power sources. - (ANSWERS)2
What is the minimum required clearance between a receiving antenna and
250 volt line not insulated? - (ANSWERS)2 Feet
The minimum clearance for an antenna to other conductors is? -
(ANSWERS)2 Feet (NEC 810.13)
How far away must communications cables be from electric, light, or power
conductors - (ANSWERS)2 inches
What is the maximum blink rate on a strobe light per second? -
(ANSWERS)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? - (ANSWERS)2 (NFPA 72 24.4.1.2.1)
What is the minimum required height for a propriety manual pull fire
alarm? - (ANSWERS)3 1/2 feet or 42 inches
An overhead feeder must have a clearance of __ from chimneys, radio, and
, NM ES-3 TEST QUESTIONS AND ANSWERS LATEST
UPDATE
television antennas. - (ANSWERS)3 Feet (NEC 225.19 B)
The NEC classifies Continuous Load as equipment running at a maximum
load of __ ____? - (ANSWERS)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? -
(ANSWERS)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: -
(ANSWERS)6.5 feet
What is the minimum required separation between communication cables
and lighting conductors? - (ANSWERS)6 feet
What is the minimum separation required between coaxial cable in a CATV
system and lighting conductors - (ANSWERS)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? - (ANSWERS)6 feet
What is the minimum length of a grounding rod in an application of less
than 50 volts? - (ANSWERS)8 Feet (NEC 250.5.2.5)
Utility owned low-voltage communication, radio, and television coaxial
