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Dan2024 Study > construction COPY > Flashcards

construction COPY Flashcards

1
Q

Vertical clearance between street light bracket and communications services

A

20”(NESC Rule 238)

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2
Q

Vertical clearance between power equipment and brackets which are NOT grounded

A

40”(NESC Rule 238)

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3
Q

Communications vertical clearance over roofs inaccessible by pedestrians

A

3 ft(NESC Rule 234)

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4
Q

Vertical supply conductors shall be guarded with conduit to this height above the highest communication attachement

A

40” above(NESC Rule 239)

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5
Q

Required Clearance Between Electric Attachment and Communication Attachment at Midspan (NESC)

A

30”(NESC Rule 235)

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6
Q

Minimum depth of fiber in innerduct

A

36”

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7
Q

Strand and cable should pay-off the _______ of the reel

A

Top

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8
Q

NESC Rule 236 climbing space clearances

A

24” square bounded by conductors

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9
Q

Clearance Between Effectively Grounded Electric Attachment and Communication Attachment (at pole)

A

30”(NESC Rule 235)

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10
Q

Consists of safety regulations and procedures issued by ANSI for the practical safeguarding of persons during the installation, operation and maintenance of electric supply and communication lines as well as associated equipment

A

NESC (National Electrical Safety Code)

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11
Q

NEC article that deals with communications curcuits

A

Article 800

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12
Q

Most common type of hardline connector

A

Pin Connector

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13
Q

Transfers horizontal stress from the pole to the ground

A

Anchor

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14
Q

Cable spans______ and greater require two expansion loops

A

250’

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15
Q

Cable tails should be ________ft

A

3ft

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16
Q

Minimum clearance for telecommunications over residential driveways

A

11.5 ft

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17
Q

A loop formed in the cable to compensate for temperature changes

A

Expansion Loop

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18
Q

Required Clearance over Railroads.

A

23.5 ft

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19
Q

Minimum depth of (hardline) CATV

A

24”

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20
Q

Used to terminate RF Signals

A

Terminator

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21
Q

Conduit pipe is usually made from

A

PVC

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22
Q

Clearance for roads in rural areas where it is unlikely that vehicles will be crossing under the line

A

13.5 ft

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23
Q

The minimum depth that power is supposed to be buried under CATV

A

12”

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24
Q

Connector where the cable is fed directly through it

A

Feed Through

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25
Q

Allows strand to be pulled in only one direction

A

Strand Brake

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26
Q

What is the mineral that coats the steel strand?

A

Zinc

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27
Q

Expansion loops should be formed on the ______ side of the pole

A

output

28
Q

Vertical clearance between street light drip loop and communications services

A

12”(NESC Rule 238)

29
Q

Clearance for communications lines above roads, streets or alleys

A

15.5 ft

30
Q

This amount of excess fiber optic cable is stored during construction

A

5%

31
Q

Double lashing is done in these three scenarios

A

1) two or more cables2) trunk cables3) Street and RR Crossing

32
Q

This government agencies motto is “to protect human health and to safeguard the natural environment…”

A

Environmental Protection Agency (EPA)

33
Q

Communications vertical clearance over swimming pools

A

22.0 ft(NESC Rule 234)

34
Q

Clearance where a communication line along a road is located relative to fences, ditches, embankments, etc., so that the ground under the line would not be expected to be traveled except by pedestrians.

A

9.5 ft

35
Q

Counteracts Horizontal forces placed on poles by the strand and cable

A

Guy & Anchor

36
Q

NEC article that specifically covers coaxial cable distribution systems

A

Article 820

37
Q

NESC Rule that covers the vertical clearances of wires, conductors and equipment above ground, roadway, rail or water services.

A

NESC Rule 232

38
Q

3/8 inch strand will have an ultimate breaking strength of how many pounds?

A

6900 pounds

39
Q

What is the maximum cable bundle diameter, in inches, that a cable “D” size lasher will accommodate?

A

3 inches

40
Q

A portable bonding method used in the stationary reel method

A

Traveling ground

41
Q

When doing a figure eight with fiber, how far apart should the cones be placed?

A

10-15 paces

42
Q

Tension in the cable caused by the mass of the cable & reel brake

A

Tail Loading

43
Q

cable blocks should be placed _____ to _____ on the strand

A

30ft to 50ft

44
Q

Acronym:NESC

A

National Electrical Safety Code

45
Q

Minimizes drag on the cables in the corners & ensures that minimum bending radius is not exceeded

A

Corner Block

46
Q

Minimum Clearance between Communication and service drops and any conductor of the power supply at the service entrance

A

12”

47
Q

NEC article that describes the general requirements for grounding

A

Article 250

48
Q

The mechanical bender should be kept in place for the first _______ of lashing

A

50ft

49
Q

Connects pole hardware to the anchor

A

Guy

50
Q

Communications vertical clearance over balconies and roofs accessible to pedestrians

A

10.5 ft(NESC Rule 234)

51
Q

How deep is warning tape buried?

A

12 inches

52
Q

Vertical clearance between power equipment and brackets which are grounded

A

30”(NESC Rule 238)

53
Q

NEC article that deals with network-powered broadband communications systems (i.e. powering of the network)

A

Article 830

54
Q

When it is impossible to obtain sufficient right-of-way for a pole guy, this type of guy is used and is constructed from an old power pole and a special bracket.

A

Push Guy

55
Q

Prevents unwanted payoff from the Reel

A

Reel Brake

56
Q

What is used to guide cables from the cable trailer to the strand and is supported by a setup bracket?

A

Set-up Chute

57
Q

Ensures cables are not over tensioned

A

Breakaway Swivel

58
Q

Measures pulling tension on the cable

A

Dynamometer

59
Q

Required Clearance Between Electric Attachment and Communication Attachment (at pole)

A

40”(NESC Rule 235)

60
Q

PVC

A

Polyvinyl Chloride

61
Q

The load bearing component of an aerial installation

A

Strand

62
Q

Ultimate Breaking strength of 3/8 inch strand

A

6900 lbs

63
Q

Ultimate Breaking Strength of 1/4 inch strand

A

3900 lbs

64
Q

4 Common types of anchors used in construction

A

Screw, Never-creep, Rock, Anchor rods

65
Q

Name 5 types of guys

A

Down, Head, Terminal, Side, Pole-to-stub, Pole-to-pole, Sidewalk, Storm

66
Q

Maximum cable bundle diameter for a D lasher

A

3 inches

67
Q

The standard for safety colors that will alert and inform persons to take precautionary action.

A

ANSI Z535.1

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