Question 1

Cloud-to-Earth lightning strokes are most likely to occur ____.

Accepted Answer

A)   in urban areas
B)   at a high point
C)   in valleys
D)   in rural areasE) A) and D)
F) A) and B)

Question 2

Lightning protection systems have three basic components: air terminals, lightning conductors, and ____ connections.

Accepted Answer

A)   rod
B)   standard
C)   safety
D)   groundingE) A) and B)
F) B) and C)

Question 3

If 6,250,000,000,000,000,000 electrons are transferred from Point A to Point B, the quantity of charge is referred to as a(n)  ____ .

Accepted Answer

A)   joule
B)   farad
C)   coulomb
D)   electron-voltE) B) and D)
F) None of the above

Question 4

The installation of lightning protection systems for structures in the open should be guided by the requirements of Master Label Service, which is endorsed by ____.

Accepted Answer

A)   UL
B)   MET
C)   NSF
D)   TUVE) A) and B)
F) B) and D) A

Question 5

What guidelines should you follow when selecting and installing air terminals?

Accepted Answer

In general, air terminals should: ∙ extend above the object to be protected, not less than 10 in. (250 mm) or more than 36 in. (900 mm); ∙ be placed on ridges of gable, gambrel, and hip roofs; ∙ be placed on the perimeter of flat roofs at intervals not exceeding 20 ft (6 m) and within 2 ft (600 mm) of the edge. ∙ be placed in the center of a roof area at intervals not exceeding 50 ft (15 m); ∙ be placed on dormers and chimneys, except when these projections are protected by other terminals.

Question 6

A(n)  ____ is the potential energy a charge gains when one joule of work is done on one coulomb.

Accepted Answer

A)   ohm
B)   farad
C)   ampere
D)   voltE) All of the above
F) None of the above

Question 7

The lightning stroke is attracted to the terminal because it is a part of the path that offers the ____ to ground.

Accepted Answer

A)   least impedance
B)   most impedance
C)   least voltage
D)   most voltageE) B) and C)
F) A) and D)

Question 8

Lightning is generated by the ominous-looking ____ cloud or thundercloud.

Accepted Answer

A)   cirrostratus
B)   altocumulus
C)   cumulonimbus
D)   cirrusE) A) and C)
F) B) and C)

Question 9

List five safety rules for human protection when lightning threatens that are recommended by United States Department of Commerce, National Oceanic and Atmospheric Administration.

Accepted Answer

The United States Department of Commerce...

Question 10

When conceptualizing lightning and charge distribution, the endpoints to consider are Point B on Earth and Point A in the ____.

Accepted Answer

A)   troposphere
B)   ionosphere
C)   stratosphere
D)   magnetosphereE) All of the above
F) C) and D)

Question 11

If you are ever present when a person is struck by lightning, immediately ____.

Accepted Answer

A)   move them to the lowest elevation
B)   begin CPR
C)   call 911
D)   find shelterE) A) and B)
F) A) and C)

Question 12

It is estimated that, on average, the earth is struck by lightning 100 times per ____.

Accepted Answer

A)   second
B)   minute
C)   hour
D)   dayE) C) and D)
F) B) and D)

Question 13

Each atom has at its center a nucleus that is composed of protons and ____.

Accepted Answer

A)   neutrons
B)   electrons
C)   neutrinos
D)   muonsE) A) and B)
F) None of the above

Question 14

How does lightning restore electrical balance?

Accepted Answer

The earth has a surplus of electrons and...

Question 15

Persons struck by lightning carry ____.

Accepted Answer

A)   a high electrical charge that remains for hours
B)   a high electrical charge that remains for a few minutes
C)   a low electrical charge that remains for a few minutes
D)   no electrical chargeE) B) and C)
F) C) and D)

Question 16

A single drop of water contains about ____ atoms.

Accepted Answer

A)   1000
B)   100,000
C)   10 million
D)   100 billionE) B) and D)
F) A) and D)

Question 17

Lightning conductors should provide at least ____ paths for current flow from an air terminal to Earth.

Accepted Answer

A)   two
B)   three
C)   four
D)   fiveE) A) and D)
F) A) and C)

Question 18

What is an ion and how is it useful?

Accepted Answer

If a force is exerted on an atom to the extent that an electron is dislodged or added, the atom is said to become an ion. The atom that loses an electron has a net positive charge and, thus, is called a positive ion; the atom that gains an electron is a negative ion. This phenomenon of being able to remove electrons from atoms, or ionizing them, makes it possible to store electrical power and to transfer that power from place to place.

Question 19

Describe the grounding connections in a lightning protection system.

Accepted Answer

The grounds are usually copper-clad stee...

Question 20

The air terminal is a solid or tubular rod made of copper, bronze, or ____.

Accepted Answer

A)   silver
B)   gold
C)   aluminum
D)   platinumE) A) and D)
F) B) and C)

Exam 14: Lightning Protection

Cloud-to-Earth lightning strokes are most likely to occur ____.

Correct Answer
verified

Lightning protection systems have three basic components: air terminals, lightning conductors, and ____ connections.

Correct Answer
verified

If 6,250,000,000,000,000,000 electrons are transferred from Point A to Point B, the quantity of charge is referred to as a(n) ____ .

Correct Answer
verified

The installation of lightning protection systems for structures in the open should be guided by the requirements of Master Label Service, which is endorsed by ____.

Correct Answer
verified
A

What guidelines should you follow when selecting and installing air terminals?

A(n) ____ is the potential energy a charge gains when one joule of work is done on one coulomb.

Correct Answer
verified

The lightning stroke is attracted to the terminal because it is a part of the path that offers the ____ to ground.

Correct Answer
verified

Lightning is generated by the ominous-looking ____ cloud or thundercloud.

Correct Answer
verified

List five safety rules for human protection when lightning threatens that are recommended by United States Department of Commerce, National Oceanic and Atmospheric Administration.

Correct Answer
verified
The United States Department of Commerce...
View Answer

When conceptualizing lightning and charge distribution, the endpoints to consider are Point B on Earth and Point A in the ____.

Correct Answer
verified

If you are ever present when a person is struck by lightning, immediately ____.

Correct Answer
verified

It is estimated that, on average, the earth is struck by lightning 100 times per ____.

Correct Answer
verified

Each atom has at its center a nucleus that is composed of protons and ____.

Correct Answer
verified

How does lightning restore electrical balance?

Correct Answer
verified
The earth has a surplus of electrons and...
View Answer

Persons struck by lightning carry ____.

Correct Answer
verified

A single drop of water contains about ____ atoms.

Correct Answer
verified

Lightning conductors should provide at least ____ paths for current flow from an air terminal to Earth.

Correct Answer
verified

What is an ion and how is it useful?

Describe the grounding connections in a lightning protection system.

Correct Answer
verified
The grounds are usually copper-clad stee...
View Answer

The air terminal is a solid or tubular rod made of copper, bronze, or ____.

Correct Answer
verified

Exam 14: Lightning Protection

Cloud-to-Earth lightning strokes are most likely to occur ____.

Correct AnswerverifiedShow Answer

Lightning protection systems have three basic components: air terminals, lightning conductors, and ____ connections.

Correct AnswerverifiedShow Answer

If 6,250,000,000,000,000,000 electrons are transferred from Point A to Point B, the quantity of charge is referred to as a(n) ____ .

Correct AnswerverifiedShow Answer

The installation of lightning protection systems for structures in the open should be guided by the requirements of Master Label Service, which is endorsed by ____.

Correct AnswerverifiedA

What guidelines should you follow when selecting and installing air terminals?

A(n) ____ is the potential energy a charge gains when one joule of work is done on one coulomb.

Correct AnswerverifiedShow Answer

The lightning stroke is attracted to the terminal because it is a part of the path that offers the ____ to ground.

Correct AnswerverifiedShow Answer

Lightning is generated by the ominous-looking ____ cloud or thundercloud.

Correct AnswerverifiedShow Answer

List five safety rules for human protection when lightning threatens that are recommended by United States Department of Commerce, National Oceanic and Atmospheric Administration.

Correct AnswerverifiedThe United States Department of Commerce...View AnswerShow Answer

When conceptualizing lightning and charge distribution, the endpoints to consider are Point B on Earth and Point A in the ____.

Correct AnswerverifiedShow Answer

If you are ever present when a person is struck by lightning, immediately ____.

Correct AnswerverifiedShow Answer

It is estimated that, on average, the earth is struck by lightning 100 times per ____.

Correct AnswerverifiedShow Answer

Each atom has at its center a nucleus that is composed of protons and ____.

Correct AnswerverifiedShow Answer

How does lightning restore electrical balance?

Correct AnswerverifiedThe earth has a surplus of electrons and...View AnswerShow Answer

Persons struck by lightning carry ____.

Correct AnswerverifiedShow Answer

A single drop of water contains about ____ atoms.

Correct AnswerverifiedShow Answer

Lightning conductors should provide at least ____ paths for current flow from an air terminal to Earth.

Correct AnswerverifiedShow Answer

What is an ion and how is it useful?

Describe the grounding connections in a lightning protection system.

Correct AnswerverifiedThe grounds are usually copper-clad stee...View AnswerShow Answer

The air terminal is a solid or tubular rod made of copper, bronze, or ____.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
A

Correct Answer
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Correct Answer
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Correct Answer
verified

Correct Answer
verified
The United States Department of Commerce...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
The earth has a surplus of electrons and...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
The grounds are usually copper-clad stee...
View Answer

Correct Answer
verified