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Details

3D1X7 Unit 1
Introduction and Antennas
67
Communication
Professional
01/23/2012

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Cards

Term
When would you NOT de-energize, lock and tag out an electrical circuit before working on it?
Definition
Only when the work requires the equipment to be energized.
Term
When would it be acceptable to use both hands while working on a energized circuit?
Definition
When required.
Term
What is the purpose of a grounding stick?
Definition
To discharge electrical equipment.
Term
Where should grounding sticks be placed?
Definition
At every CE Equipment area.
Term
Who would be contacted for guidance on hearing protection?
Definition
The base Bio-Environmental Office.
Term
What is the reference for using approved and authorized cleaning solvents?
Definition
AFOSH STD 91-68
Term
What is the T.O. for inspecting climbing equipment?
Definition
AFOSH STD 91-68 Chapter 14
Term
How often does an induvidual need to be re-certified in climbing?
Definition
Every 12 months.
Term
On joint use poles, what is the minimum distance between power and comm cables?
Definition
40" @ 87,000v and 60" @ 87,000v
Term
What is the T.O. reference for installing messenger strands over roadways, railroads, walkways, and so forth?
Definition
T.O. 31W3-10-19
Term
How deep must you dig around an anchor rod to determine the extent of corrosion?
Definition
18 Inches
Term
Radar and microwave equipment are sources of what type of radiation?
Definition
Non-Ionizing
Term
What must be done to the transmitter of an antenna that is being worked on?
Definition
You must lock-out tag-out.
Term
Where must the safety observer stand while the winch is in operation?
Definition
To the front and clear of the winch.
Term
What must you never allow a cable reel to do?
Definition
Tilt
Term
How much current can be fatal?
Definition
50mA
Term
If working with overhead power lines, who must you coordinate with?
Definition
Base C.E.
Term
what is the technical reference for safety devices and equipment?
Definition
AFOSH STD 91-50
Term
What prevents fiber rope from unlaying when a load is suspended on it?
Definition
Twists in opposite directions.
Term
What type of fiber is used on military installations?
Definition
Hawser-Laid fiber rope.
Term
Name a disadvantage of cable-laid rope?
Definition
Kinking in the rope.
Term
How is cable-laid rope formed?
Definition
By twisting together 3 Hawser-Laid Ropes in a left hand fashion.
Term
In what direction should you coil rope?
Definition
Clockwise
Term
After you cut a rope, what precautions must be taken to prevent the rope from unraveling?
Definition
Tape the ends.
Term
On a CSIR drawing, what does a dashed line represent?
Definition
A buried cable.
Term
On a CSIR drawing, how can you tell when an existing cable is to be transfered to a different cable and count?
Definition
Parenthasis on CSIR.
Term
Who assigns cable number?
Definition
Engineers
Term
How are cross-connecting terminal numbers sequenced?
Definition
Chronilogically by placement date.
Term
Describe the numbering scheme for terminals located on poles and buildings.
Definition
Pole #, T if on or in buildings, building #.
Term
How many sets of drawings are required on an installation project?
Definition
Three
Term
How many derrick extentions are provided on the low profile truck?
Definition
Four
Term
How do you extend the fourth derrick on a low profile truck?
Definition
By hand.
Term
What should you do before you lower the Auger?
Definition
Raise to a 50 degree angle.
Term
You should NEVER lower or raise the boom when?
Definition
When the boom is not fully extended.
Term
The cable reel truck replaces the need for what type of equipment?
Definition
Cable Reel Trailer.
Term
What prevents the cable reel from walking on the spindle bar?
Definition
Two locking reel collars.
Term
You should NOT exceed what speed when the cable reel is suspended over the back of the cable reel truck?
Definition
Ten MPH
Term
How high should a load on a forklift be lifted off of the ground?
Definition
2 - 6 Inches
Term
What is used to bind a load of poles together?
Definition
Binder chains
Term
What kind of grease do you use on the telescoping tongue?
Definition
Water-proof grease
Term
What allows for easy raising, lowering, and leveling of the cable reel?
Definition
Two independant lifting arms.
Term
What does the Ditch Witch alligator chain use to dig with?
Definition
Replacable carbide bits.
Term
How are climbing harnesses sized?
Definition
By D-ring and waist.
Term
How do you tell your proper climber size?
Definition
Arch of the foot to the inside of the knee minus 1/2".
Term
When should you inspect your climbing gear?
Definition
Prior to each use.
Term
How can you remove paint from your safety strap?
Definition
Trichloroethylene
Term
How often do you oil leather belts and safety straps?
Definition
Semi-Annually
Term
How far does a correctly sharpened gaff go into the pole?
Definition
2"
Term
When should you check the conditions of the pole?
Definition
Before and as you climb it.
Term
How close to the top of a pole can you place a safety strap around the pole?
Definition
1 Foot
Term
Transmission lines are designed with what reduced to the smallest possible values?
Definition
Resistance and Shunt Resistance
Term
How many letters are in a GELOC code?
Definition
Four
Term
What letter is used to indicate a CSIR is a grid drawing?
Definition
The letter G.
Term
What does the facility code "0000" mean?
Definition
More than one comm facility is depicted.
Term
An electromagnetic field is normally split into two parts. These parts are known as...
Definition
Radiation and Induction
Term
What is caused by the imperfect insulating quality of the medium between wires?
Definition
Shunt conductance
Term
One of the four distributed constants is the shunt...
Definition
Conductance
Term
What is classified as high-frequency?
Definition
3 to 30 MHz
Term
How many lower radiators does an AT-197/GR UHF antenna have?
Definition
Twelve
Term
Which antenna has a four-element stacked array enclosed in a cylindrical radome?
Definition
AS-1181/UR
Term
What colors are used to identify towers?
Definition
White and Orange
Term
At what angle is the AS-3482 Rotatable Log Periodic Antenna pivot tower stopped?
Definition
50 to 55 degrees.
Term
How many inches of rope is recommended for tower rigging?
Definition
3/4 inches
Term
What allows the hydraulic cable reel trailer to accommodate reels of different sizes?
Definition
An adjustable reel drive
Term
The delta match doublet antenna is designed primarily to transmit frequencies ranging from...
Definition
1.5 to 30
Term
Which antenna has a four-element stacked array enclosed in a waterproof radome?
Definition
1097-GR
Term
The array for the AS-3482 Rotatable Log Periodic Antenna is a wire curtain measuring...
Definition
120 by 100 feet
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