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3E051b CDC's URE's
volume 1,2,3 and 4
| Question | Answer |
|---|---|
| light fixtures are classified by | the way they distribute light |
| which light classification directs from 40 to 60 percent of its light upward above the area to be lighted | general diffusing |
| which classification of light fixtures directs all its light so that the entire ceiling and upper side walls become the light source | indirect |
| what is the unit of measurement for lumens per square meter | lux |
| the efficiency range of a lamp is measured in lumens per | watt |
| incandescent lamps have efficiencies ranging from | 6 to 24 lumens per watt |
| what is the diameter of a t8 lamp | 8/8 inch |
| what frequency should you expect to find in electronic ballasts used in fluorescent systems | 25,000 to 40,000Hz |
| what is used to power a light emitting diode (LED) array in a non integrated LED fixture | LED driver |
| what is a disadvantage of high intensity discharge (HID) lamps | restrike time |
| what are the voltages that the 150-watt high pressure sodium (HPS) lamp comes in | 55 and 100 volts |
| what color light is associated with High pressure sodium lamps | golden |
| which type of fixture is installed by laying it into the grid of a suspended ceiling | troffer |
| when installing an octagon box for a new flush mount fixture what is important to ensure that the mounting method does not fail | box is sized to support that fixture |
| what are the two types of phase cut dimmers | forward and reverse |
| how does a phase cut dimmer operate | the root mean square (RMS) voltage is reduced by turning off a portion of the input waveform |
| what is the light output of a fixture using a 0-10v ballast with 10 volts on the low voltage control circuit | 100% |
| what type of light fixture is used to illuminate aircraft on the parking apron | 1000 w- 1500 w high intensity discharge flood light |
| in a incandescent lamp, how much consumed energy is lost in the form of heat | 90% |
| what device is used in high intensity discharge lamps to limit current as the lamp heats up | capacitor |
| what letter represents the american national standards institute's special designation code for high pressure sodium lamps | s |
| when installing fixtures insure uniform lighting by | adjusting fixtures so that illuminated areas overlap |
| to ensure that the proper amount of light is provided after fixture installation check the lighting with | a light meter |
| when troubleshooting a 120 volt photocell which conductor should provide power to the fixture | load (red) |
| to prevent injury during relamping procedures you must | do all the above tasks |
| which airfield lights have yellow filters installed for the last 2000 feet of runway | runway edge lights |
| which airfield lights provide positive identification of the beginning of the operational runway surface for approaching aircraft | threshold lights |
| which airfield fixture is unidirectional | approach |
| which of the following items are found on ALSF-2 approaches | 500 foot bar |
| what color is used for taxiway edge lights | blue |
| one of the main control panels for the airfields lights is in the vault where is the other panel | control tower |
| what should you have available if your system uses 48 volt DC control? | an extra power supply module |
| the standard control cable for an airfield lighting control system has how many conductors? | 7 |
| which airfield vault device is used to swap location of control of the airfield lights | transfer switch |
| what size cable is used for air field light field circuits | no. 8 |
| how are the out put leads of and airfield regulator labeled | h1 and h2 |
| what size counterpoise is used for and airfield lighting circuits | no. 4 AWG |
| what must be done before replacing an isolating transformer | De-energize, tag, and ground the circuit |
| what feature is common to elevated airfield lights | they are built with frangible construction |
| the primary purpose of the rotating/airport beacon is to | guide the pilot to the airfield |
| how many revolutions per minute does the airport beacon turn | 6 |
| what happens when the operating lamp in the airport beacon fails | a reserve lamp is place in operation automatically |
| what voltage is necessary to run the airport beacon | 120/240 volts |
| what device can be used to change voltage up or down for the airport beacon lamps | the tap changer in the distribution transformer |
| what do we use to clean the airport beacons slip rings | wood alcohol |
| what station marks the start of the strobe system | station 20+00 |
| how often does each strobe light unit flash | twice each second |
| the strobe system is capable of producing how many brightness steps | 3 |
| the wire that connects the flash head to the individual control cabinet is rated at | 3 kv |
| when does the hour elapsed time meter operate | when the system is operated on high intensity |
| what would indicate a failure condition on the lightning protection varistors | charring on the surface |
| how long does it take the flash capacitors to bleed off their charge | 1 minute |
| what is indicated when two skips occur within 100 flashes of the condenser discharge system | a worn out lamp |
| after notifying the control tower what should you do before working on control circuits | isolate the circuit |
| what indication is considered good when you read across a closed switch with a voltmeter | 0 volts |
| to check the coil of a deenergized relay use a | an ohmmeter |
| how are animals prevented from chewing on airfield lighting fixture cords | fixtures are designed so that no cords are exposed |
| what is used to maintain contact with the tower when away from the truck | hand held radios |
| what should you do before screwing an elevated fixture coupling onto the base | tighten the lock ring until its fully seated onto the base |
| which approach lighting systems maintenance item must be done daily | check and record burned out lamps |
| when should you check all approach lighting fixtures for alignment | twice a year |
| where is the precision approach path indicator system located | on the left side of the runway |
| what occurs when a precision approach path indicator unit gets misaligned by more than 1/2 degree up or 1 degree down | a tilt switch opens up the entire circuit |
| how often are di electric oil tests made on airfield regulators | annually |
| when you tie together two airfield light circuits for emergency operation what do you do to prevent regulator overload | move the control wire from step 5 relay to step 4 |
| what meter do you use to perform insulation resistance tests on airfield light circuits | megohmmeter |
| to perform a direct current hipotential test on a high intensity runaway edge circuit what voltage value do you use | 5000 |
| in order to perform a direct current hi potential test on an airfield light circuit what do you do with the leads once you remove them from the airfield regulator | support both leads and keep them clear of each other and the ground |
| when using radios which two words should you use to describe circuits conditions | open/closed |
| which method of troubleshooting is potentially destructive and should not be used first | intentional grounding |
| what voltage classes can be used for a distribution system | 5Kv, 15Kv , 25Kv and 35Kv |
| the main substation is usually located as close as possible to | the center of the base load distribution |
| which item is designed to open a circuit automatically under load and then restore service quickly once the fault has cleared | circuit breaker |
| a substation with one incoming transmission circuit and three outgoing distribution circuits has atleast how many lightning arrestors | 12. |
| which item supplies control voltage to operate circuit breakers | batteries |
| in a circuit the step voltage regulators primary and secondary windings are configured with the primary in | parallel and the secondary in series |
| what item in a oil circuit breaker suppresses an arc | oil |
| what oil circuit breaker components supply amperage to the protective relays | current transformers |
| the insulating quality of sulfur hexaflouride SF6 at 0 psi is how much greater than dry air | 2 1/2 times |
| why are high voltage fuses enclosed | to keep melted metal from dropping into nearby equipment |
| what is installed in the insulated fiberglass tube assembly to complete the connection between the upper and lower contacts on the fuse holder | fuselink |
| how can a craftsmen easy identify blown fuse cutout | the cutout door is hanging down |
| what percent of electrical system faults are temporary | 95 |
| which one of these does not interrupt a fault current | sectionalizer |
| where are overhead switches normally mounted | on substation structures or utility poles |
| what is required for a gang operated overhead switch on a 3 phase circuit | one set of blades and contacts |
| what is usually installed with and oil circuit breaker to allow for equipment maintenance and allows you to keep the circuit in operation | knife blades and a normally open airbreak switch |
| the oil in oil circuit breakers is checked di electrically | every 6 months |
| strong odor from the gas in a sulfur hexaflouride circuit breaker is and indication that | gas decomposition has taken place |
| clean a modern air switch that been closed for a long time by | opening and closing it several times |
| battery bank maintenance is normally done | every month |
| what is used to test a battery for its specific gravity | hydrometer syringe |
| switch board graphic instruments and revenue watt hour meters must be calibrated every | 4 years |
| which device is essentially a voltage regulator and requires similar servicing | distribution transformer |
| the maintenance interval for voltage regulators is every | year |
| battery electrolyte impurities cause | irregular cell operation |
| after repair work on a relay you must | make a complete performance test |
| what publication outlines how to perform a flash hazard analysis to determine personal protective equipment requirement | NFPA 70E |
| leather protectors or gauntlets should be | 2 to 5 inches shorter than the rubber gloves |
| which of these combinations would you likely use inside rubber gloves | cotton gloves and dusting powder |
| the supervisor must visually inspect rubber blankets every | 6 months |
| how must rubber blankets be stored | flat or rolled in a blanket canister |
| while working what must be done if your rubber gloves come in contact with petroleum based products | wipe them off quickly |
| while inspecting rubber insulating line hoses which condition would require the line hose to be removed from service | damage extending 1/4 of the wall thickness |
| what is used to clean nylon parts of body work positioning equipment | mild soap and water |
| when leather can not be mad soft and pliable enough by saddlesoap dressing it should be | oiled |
| which part of the gaff do you sharpen | flat inner side |
| how should you plan you climbing route with respect to a single crossarm | opposite the crossarm |
| when two workers are ascending a pole the second worker must not start climbing until | the first one is in a safe work position |
| which of the following manufacturers certification tests is acceptable for hot sticks | 100,000 volts AC per foot for 5 minutes on fiber glass and epoxy sticks |
| hot sticks are tested electrically with a | direct current hi pot test set |
| at the job site the aerial lift device should be positioned so the work area is always | within reach of the boom |
| materials or tools can only be passed from a worker on the ground to a worker on the aerial lift vehicle when | both workers are wearing rubber gloves |
| the test voltage for a aerial lift basket test is | 100 kilovolts Direct current |
| the line truck winch is operated | through the power take off |
| how is the rope put on the capstan | wind it clockwise with the load end next to the truck |
| the purpose of hand signals is to ensure | clear communication between the truck operator and the ground worker |
| what does holding up a closed fist indicate | stop all action |
| which of these operators inspection guide and trouble report on which you would write up line truck inspection discrepancies | af form 1800 |
| what is more common name for a constant current transformer | constant current regulator |
| the insulation value of transformer coils bushings and oil determines | the voltage rating of the transformer |
| when you make delta delta connection for lights and power there is one unusable voltage from | b phase to nuetral |
| which meter do you use in a transformer continuity check | megger |
| which connection would you use for a continuity check on the primary winding of a transformer | H1 to H2 |
| What valuable tool in the electric shop will show you the physical location of distribution system components | Distribution map |
| What informs electric shop personnel of unique conditions on the distribution system | Abnormal conditions listing |
| What types of conductor support construction should be used on distribution systems located in. High moisture environments | Fiberglass cross arms or epoxy fiberglass arms |
| What insulator type is commonly connected to one another | Suspension |
| What insulator will you use on low voltage or neutral conductors | Spool |
| What insulator is used to insulate guy wires | Strain |
| The American national standards institute class of an insulator is determined by the | Atmospheric pollution and operation voltage |
| In addition to engineers or the planning section who assists in making a staking sheet of the area over which the line is to pass | A survey crew |
| The afternoon form 103 base civil engineering work clearance request is used for | Digging permits |
| How many inches deeper Down do we set poles that are subject to more strain than normal | 6 |
| What tool do workers use to position poles on the ground | Can't hook |
| A large number of poles to be stored are sorted by | Length |
| We usually load poles on the trailer using the | Boom method |
| Where is a wood pole branded | 10 feet from the butt |
| Where local conditions shorten the life of wood poles which pole is preferred | Concrete |
| Aluminum poles are most likely used for | Roadway and area lighting circuits |
| What type of roof do we find on untreated wood poles | Slant |
| What must you do before you cut the roof on a wood pole | Find the poles face and backside |
| What size wood but do you use to drill the holes for a crossarm through bolt | 11/16-inch |
| In using the line truckb and winch to set a pole before you raise the pole slightly attach the winch line | Above the midpoint of the pole |
| If a pole must be set in an energized line what two additional articles of equipment must be used | Rubber gloves and pole guard mmmmhmmmm |
| The proper type of pole anchor depends largely on | Soil conditions |
| What type of anchor do we use for hard or compact soil | Expanding |
| What type of guy do we normally use at a curve in the line | Side guy |
| What valuable tool in the electric shop will show you the physical location of distribution system components? | Distribution Map. |
| What informs electric shop personnel of unique conditions on the distribution system? | Abnormal Conditions listing. |
| What types of conductor support construction should be used on distribution systems located in high moisture environments? | Fiberglass Crossarms or Epoxy Fiberglass Arms |
| What insulator type is commonly connected to one another? | Suspension. |
| What insulator will you use on low-voltage or neutral conductors? | Spool. |
| What insulator is used to insulate guy wires? | Strain |
| The American National Standards Institute class of an insulator is determined by the | atmospheric pollution and operating voltage. |
| In addition to engineers or the planning section, who assists in making a “staking sheet” of the area over which the line is to pass? | A survey crew. |
| The AF Form 103, Base Civil Engineering Work Clearance Request, is used for | digging permits |
| How many inches deeper do we set poles that are subject to more strain than normal? | 6 |
| What tool do workers use to position poles on the ground | Cant hook. |
| A large number of poles to be stored are sorted by | length. |
| We usually load poles on a trailer using the | boom method. |
| Where is a wood pole “branded”? | 10 feet up from the butt. |
| Where local conditions shorten the life of wood poles which pole is preferred? | Concrete. |
| Aluminum poles are most likely used for | roadway and area lighting circuits. |
| What type of roof do we find on untreated wood poles? | Slant |
| What must you do before you cut the roof on a wood pole? | Find the pole’s face side and back side. |
| What size wood bit do you use to drill the hole for a crossarm through-bolt? | 11/16-inch |
| In using the line truck and winch to set a pole, before you raise the pole slightly attach the winch line | above the midpoint of the pole. |
| If a pole must be set in an energized line, what two additional articles of equipment must be used? | Rubber gloves and pole guard. |
| The proper type of pole anchor depends largely upon | soil conditions. |
| What type of anchor do we use for hard or compact soil? | Expanding. |
| What type of guy do we normally use at a curve in the line? | Side guy. |
| Which of these combinations do you use to draw up a guy wire and hold it in place for attachment to the anchor rod? | Chain hoist and two strand grips. |
| What factors are considered when establishing the three loading areas for conductors in the United States? | Longitudinal, transverse and vertical loading |
| How far apart are the pole pins spaced for a 12.470 kilovolt line? | 30 inches |
| In vertical construction, where do we install the first conductor in relation to the top of the utility pole? | 9 inches below the top |
| When raising a crossarm the person on the ground uses | A half hitch and a clove hitch |
| You use a conductor pulled from pole to pole over the crossarms instead of first laying it out on the ground when | The ground is rough or stony |
| When building a new pole line, if you are on the second pole which conductor does the person on the ground send up first? | The inside conductor |
| Which splice uses tapered jaws to hold the conductor? | Automatic |
| What do you do to prevent a hot-line clamp from burning a main conductor? | Use a stirrup |
| What type of insulator is used at the dead end for a primary conductor? | Suspension |
| How long after the preliminary sagging must you wait to allow conductors to “creep”? | 30 minutes to 4 hours |
| What size tie wire do we use for No. 2 conductor? | No. 4 |
| Pad mounting is the preferred mounting method for what transformer size? | 75 kilovolt-ampere |
| Which method do we most likely use to install light, single-phase transformers? | Block and tackle |
| Where do you connect the top and bottom connection points of a transformer’s lightning arrester? | Top to primary wire bottom to ground wire |
| What can we install to raise the power factor in a distribution circuit? | Capacitors |
| What device do we use across a capacitor’s terminals to gradually discharge the capacitor? | Resistor |
| What minimum depth below grade should you install a 12,470 volts alternating current (VAC) circuit using rigid, nonmetallic conduit? | 18 inches |
| Ducts that terminate in a building must be sealed to prevent | Gases and rodents from entering a building |
| What information is marked on manhole covers? | Ownership or type of utility |
| What is the minimum size of a constructed manhole? | 4 feet by 6 feet by 6 feet |
| The use of 90° bends in duct lines is permitted for | Pole risers |
| What is the purpose of a vault? | Isolate electrical equipment |
| Junction boxes located in an underground vault must | Provide a water tight seal |
| The mechanical strength of underground cable is not a major concern because the cable is | Not under tension |
| What material is used between the conductor and the cable insulation? | Strand shielding |
| When pulling cable, the snatch block and pulling rope is attached to | The pulling in iron in the manhole |
| What is the device used to attach the underground cable to the pulling rope? | Basket grip |
| Which procedure do you use to assure that a duct is clear of obstructions? | Rodding |
| Why is proper cable reel placement important? | Ensures the bend in the cable is not reversed |
| How many people does it take to pull underground cable safely using the winch method? | 4 |
| What term describes an underground cable that is brought up through a conduit and attached to an overhead line? | Riser |
| The device used to terminate high-voltage cables is called a | High voltage termination |
| When making a load-break elbow, before attaching the crimp connector to the cable make sure you | Align the hole on the end of the conductor with the equipment bushing |
| After sliding the elbow over the connector and cable the next step is to | Thread the electrode into the connector using the wrench from the elbow kit |
| What depth do you dig the trench for a below-ground check of a pole? | 8 to 18 inches |
| Decay usually starts at what location on a crossarm? | Pin holes |
| What condition can cause a crossarm to twist? | Unbalanced strain or insufficient guying |
| When a span shows too much sag while adjacent spans appear normal, | It's a sign of loose wires |
| We must make voltage and current readings on capacitor installations at least | 4 times a year |
| What do we use to cut tree limbs that are beyond arm’s reach? | Pole saw |
| Where would you put the tree pruner to add a third section? | Lean it against a tree limb |
| What species of trees do we usually top? | Willow cotton wood and poplar |
| What is usually the first step in troubleshooting a tripped overhead distribution circuit? | Inspect the circuit visually |
| What do we use to test a distribution line for a ground? | Megger |
| Which of these is not one of the three main causes of power line noise? | Bonded ground wires on the utility pole |
| What must the electrician do before working on deenergized lines? | Test and ground lines |
| How is the cable used for ground sets constructed? | 600 volts insulated rubber or synthetic covered flexible copper |
| When a break occurs in an energized line, how is the line at the break affected? | The center disappears leaving soft wire on either side |
| What do you use to check a suspected damaged transformer? | Megger |
| What must you do before working on energized lines? | Inspect hot line tools and equipment for proper operation |
| What two connector types do we use when splicing energized conductors? | Compression and automatic |
| In making a midspan splice on an energized line, position the personnel bucket of the bucket truck | So the linemen can face the splice area from the front of the bucket |
| What tie stick head do we normally use to untie tie wires? | Fixed head |
| Once we untie the tie wires what do we use to raise the auxiliary crossarm assembly? | A handline |
| When the pole has a single crossarm supporting three phase conductors how many line hoses are needed for a pole change? | 8 |
| When replacing a pole, how many feet above the pole do you raise the auxiliary arm? | 3 to 4 feet |
| The high voltage audible indicator makes an audible sound when placed | In an electrostatic field |
| The act of tying a tagline to each outside conductor with a bowline knot and pulling the conductors out of the work area is called | Tagging out |
| After you remove the crossarm, who lowers it to the ground? | The ground person |
| Service meters are used to determine | How much power has been used by a facility or organization |
| The service meter normally measures | Kilowatt hours |
| What is the formula to find the amount of watt-hours used? | New reading minus previous reading |
| When transposing the numbers from the dial meter to a piece of paper, start on the | Right hand dial then work the the left |
| What is the approximate bending radius for underground cable? | 5 to 12 times the cables diameter |
| How much straight cable needs to exist on each side of a cable splice for racking purposes? | 6 inches |
| What type of tape is used for fireproofing underground cable in manholes? | Polymeric elastomer |
| What type of cable test is made after its installed but before it is placed into service? | Acceptance test |
| Generally if a cable’s insulation is deteriorating, what does a direct current high potential (DC Hypot) cable test indicate for each succeeding test? | Lower resistance or a higher power factor |
| What is the easiest and quickest way to locate a cable fault? | Visually |
| When you check for a grounded conductor with a volt-ohmmeter, what reading would indicate a grounded conductor? | Low resistance |
| When you use the mm–1 fault locator or the thumper to locate a cable fault, when you are over the fault location | Fault locator signal fades out at the fault thumper signal increases to the loudest volumemmmmmmmmmmmmmmmmmmmmm |
| In many cases, a cable fault is located at a | Splice |
| Which cable splice kit requires the most labor to install? | Conventional tape splice kit |
| What should be your first step when troubleshooting a pad mount transformer? | Take a complete set of secondary phase to phase and phase to ground voltage readings |
| If tests indicate an off-ratio winding, how would you verify whether or not the problem was in the transformer? | Take voltage readings on the primary side of the transformer |
| What is the next step in installing strobe lights after you ground the series circuit adapter and master strobe? | Discharge the capacitors |
| What is the TAG’s first step in installing the strobe units? | Position the strobe master unit so that it's window faces away from the runway |
| What is the next step after the TAG installs the 1000 foot crossbar? | Install the approach lights |
| What is the final step in installing the runway edge lights? | Anchor each light fixture with two ballast rings or one stake |
| What do you do first when leveling and aiming a precision approach path indicator (PAPI) unit? | Level the unit from side to side by adjusting the units two front knobs |
| What is the final step in installation of the precision approach path indicator (PAPI) units? | Adjust the tilt switch so that the bubble is in the middle |
| How do you begin the procedure for installing the emergency airfield lighting system obstruction lights? | Install the batteries into the fixture |
| When performing an open circuit test on the regulator, what is the next step after turning the circuit breaker off? | Remove the male to make adapter cable from the output current plugs |
| When replacing a lamp on a runway edge light, how do you remove the lamp from its base? | Turn the lamp in a counter clockwise direction |
| How do you remove the red lens from an obstruction light? | Loosen the screws holding the lens in place turn it to the right and pull it straight up |
| Which of the following is a step in the process of changing out a lamp in a strobe unit? | Short the capacitors |
| What is the procedure for removing the electrical connection from a precision approach path indicator (PAPI) lamp | Push in the connector and turn it counterclockwise |
| What generator is used for emergency backup of facilities that are mission essential, such as communications centers and command posts? | Mep 806a |
| Besides conductor size, what is another important factor to consider when reducing voltage drop in an electrical circuit? | Circuit distance |
| You have a #8 AWG stranded copper conductor with 0.778 ohms of resistance for each 1,000 feet of length. If you run that cabling 100 feet between the power plant and the load, the total resistance would be | 0.00778 ohms |
| How do you start the engine of a mission essential power (MEP) 806B generator? | Hold ENGINE CONTROL switch in the START for 2 seconds |
| What is the first step to shutting down a generator? | Hold AC CIRCUIT INTERRUPT switch in OPEN position to open the load contactor |
| When operating in extremely cold climates, what must you do to prevent the battery from freezing when you add water? | Immediately mix the fluid by charging the battery |
| The Basic Expeditionary Airfield Resources Order of Battle (BOB) is based on increments on of how many personnel? | 250 |
| On a 25-kw power distribution panel (PDP), what is the 60-amp output utilized for? | To connect a field deployable environmental control unit |
| How many light masts come with the remote area lighting system (RALS)? | 13 |
| What is the proper wattage and lamp type used on the remote area lighting system (RALS)? | 150 watt high pressure sodium |
| You can establish automatic operation of a fully operational remote area lighting system (RALS) by positioning the override switch to | AUTO |
| What is the output rating of the diesel generator on the telescoping floodlight set? | 6kw |
| For proper operation, you need to keep the telescoping floodlight set generator output between | 233 and 247 VAC |
| What is the full height of the telescoping floodlight set trailer tower? | 29 feet |
| How often must you clean the air filter in the generator on the telescoping floodlight set when operating under dusty conditions? | Once a day |
| The reverse osmosis water purification unit (ROWPU) requires a power supply capable of providing | 120/208 VAC |
| What is used to ground the reverse osmosis water purification unit (ROWPU)? | A three piece ground rod that is stored on the control panel |
| What safety precaution should be taken prior to disconnecting any pipes or equipment on the reverse osmosis water purification unit (ROWPU)? | Open all the drains and vents |
| Where is the reverse osmosis water purification unit (ROWPU) ground rod stored? | On the control panel |
| Which contingency asset requires two dedicated secondary distribution centers (SDC) to meet its high load demands? | Basic expeditionary airfield resources kitchen |
| The basic expeditionary airfield resources (BEAR) kitchen is powered by two generators, one 60 kW and one | 30 kw |
| When operating how often is the basic expeditionary airfield resources (BEAR) kitchen electrical system inspected? | Weekly |
| What is the primary distribution voltage of the basic expeditionary airfield resources (BEAR) electrical system? | 4160 |
| What is the output of the 750-kW, mission essential power (MEP)–12 generator in a basic expeditionary airfield resources (BEAR) package? | Three phase 2400 volts |
| What type of cable termination is used for the primary switching center (PSC) connections? | Load break elbows |
| Which way point is used to tie two primary switching centers (PSC) together? | 6 |
| When connecting two primary switching centers (PCS) together using 500 MCM copper cable, what is required to make the connection? | 600 amp dead break |
| What is used to compensate for voltage drop in a secondary distribution center (SDC)? | Tap changes |
| What is the conductor size and insulation value of the basic expeditionary airfield resources (BEAR) high-voltage electrical cable? | #1/0, 5 kv |
| You should bury primary cables to a depth of at least | 18 inches |
| How many ways on the primary switching center (PSC) have load interrupter switches? | 2 |
| Before performing maintenance on the secondary distribution center (SDC) you | Ensure all power is removed |
| What is the mostly likely problem when there is no power to any of the outbound primary distribution center feeders? | Power source failure |
| The recommended distance for secondary runs from the secondary distribution center (SDC) is not to exceed | 800 feet |
| What basic expeditionary airfield resources (BEAR) asset is used as the main distribution point for secondary circuits? | Secondary distribution center |
| How many 120/208 volts alternating current output circuits can the secondary distribution center (SDC) provide? | 16 |
| Which power distribution panel is associated with the tent extendible modular personnel (TEMPER) tent? | 25kw |
| What cable size is used to connect the low-voltage mission essential power generator to the secondary distribution center (SDC)? | 25 foot, 200 amp |
| How do you deenergize the transformer windings of one secondary distribution center (SDC) without deenergizing any of the interconnected SDCs? | Pull the three fused disconnects in the high voltage compartment |
| What can you do to ground the system if the ground rod cannot be driven into the earth during deployments to locations where low voltage will be used for a short time? | Bury the ground rod in a horizontal trench that is 18 inches deep |
| What mixture of salt and water normally increases the conductivity of the soil that is in contact with a ground rod? | 3 pounds of salt per one gallon of water |
| How many light streamers are installed in each tent? | 1 |
| When dissembling the tent lighting assets, where do you store the components? | In the proper storage containers |
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rocklobster
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