Lightning Protection Lvl 1

Question 1

When they are to be concealed, lightning conductors may be installed?.

Select one:

a. behind exterior wall facing
b. between wall studs
c. under roof framing
d. under roofing materials
e. all of the above

Answer 1

e. all of the above

Question 2

If the lightning conductor is run in metal conduit, it must be bonded to the conduit at?.

Select one:

a. any point where the conduit is not electrically continuous
b. both ends
c. the center of the conduit
d. a. and b.
e. all of the above

Answer 2

d. a. and b

Question 3

In masonry chimneys, both strike termination devices and lightning conductors can be concealed within the chimney itself or attached to the exterior and routed through the structure to conceal main conductors.

Select one:

True

False

Answer 3

True

Question 4

Lightning conductors and all other lightning protection components concealed in steel reinforced concrete must be connected to the reinforcing steel at?.

Select one:

a. the center
b. the lower extremities
c. the upper extremities
d. b. and c.
e. a., b., and c.

Answer 4

d. b. and c

Question 5

Long vertical reinforcing steel members must have additional connections to the lightning conductor at intervals not exceeding?.

Select one:

a. 50’
b. 75’
c. 100’
d. 200’

Answer 5

D 200’

Question 6

Horizontal lightning conductor runs must be connected to the reinforcing steel at intervals not exceeding?.

Select one:

a. 50’
b. 75’
c. 100’
d. 200’

Answer 6

C 100’

Question 7

Grounding electrodes for concealed systems follow the same rules as those for exposed systems.

Select one:

True

False

Answer 7

True

Question 8

Grounding electrodes located under basement slabs or in crawl spaces need to be installed as close as possible to the outer perimeter of the structure.

Select one:

True

False

Answer 8

True

Question 9

Where ground rods are used for grounding electrodes, they must be in contact with the earth for a minimum of?and extend to a depth ofnot lessthan?below finished grade, except as permitted by the requirements for shallow soil.

Select one:

a. 4’ / 6’
b. 6’ / 8’
c. 8’ / 10’
d. 10’ / 12’

Answer 9

c. 8’ / 10’

Question 10

The structural steel framework of a structure can be utilized as a main lightning conductor of the lightning protection system if?.

Select one:

a. it is electrically continuous
b. it is less than 30’ in length
c. it is made electrically continuous
d. a. or c.
e. a., b., or c.

Answer 10

d. a. or c.

Question 11

Strike termination devices must be connected to the structural steel framing by?.

Select one:

a. direct connection
b. the use of an external lightning conductor that interconnects all strike termination devices
c. the use of individual conductors routed through the roof or parapet walls to the structural steel framework
d. any of the above

Answer 11

D all

Question 12

When the external lightning conductor is used, it must be connected to the structural steel at intervals not exceeding?.

Select one:

a. 50’
b. 75’
c. 100’
d. 150’

Answer 12

c. 100’

Question 13

Which of the following isNOTa method to connect the lightning conductor to the structural steel?

Select one:

a. Brazing
b. Mechanically
c. Welding
d. None of the above

Answer 13

D none of the above

Question 14

When making the connection for a lightning conductor mechanically, the steel must be cleaned down to the?.

Select one:

a. base metal
b. first layer of paint
c. primer
d. a. or c.

Answer 14

A base metal

Question 15

When a bonding plate is used on a structural steel member, it must have a minimum surface area of at least?.

Select one:

a. 4 in2
b. 8 in2
c. 1 ft2
d. 2 ft2

Answer 15

b. 8 in2

Question 16

Bonding plates must have bolt-pressure cable connectors and be?to the steel column.

Select one:

a. bolted
b. brazed
c. welded
d. b. or c.
e. a., b., or c.

Answer 16

e. a., b., or c.

Question 17

When rust-protective paint has been removed from the steel column, the base steel must be protected with a conductive corrosion-inhibiting coating.

Select one:

True

False

Answer 17

True

Question 18

Although allowed by UL and NFPA standards, drilling and tapping a steel column to install an air terminal is not a good idea since it makes it very difficult to replace the air terminal if it breaks.

Select one:

True

False

Answer 18

True

Question 19

If the drilling and tapping method into a steel column is employed, the air terminal must have at least?one-half-inch threads fully engaged and secured with a jam nut.

Select one:

a. 3
b. 4
c. 5
d. 6

Answer 19

C. 5

Question 20

When structural steel is used as the lightning down conductor, grounding electrodes must be connected to approximately every other steel column around the perimeter of the structure at intervals averaging not more than?.

Select one:

a. 40’
b. 50’
c. 60’
d. 80’

Answer 20

C 60’

Question 21

When structural steel is used as the lightning down conductor, grounding electrodes must be connected near the base of the column.

Select one:

True

False

Answer 21

True