Electrical Set 2 Vol 4
.webp "Electrical Set 2 Vol 4 - Quiz")
- 1.
1. What is the next step in installing strobe lights after you ground the series circuit adapter and master strobe?
- A.
Set the on-off switches to the on position
- B.
Set the strobe master switch to remote
- C.
Discharge the capacitors
- D.
Install the flash tube
Correct Answer
C. Discharge the capacitorsExplanation
After grounding the series circuit adapter and master strobe, the next step in installing strobe lights is to discharge the capacitors. This is important because capacitors store electrical energy and can pose a safety hazard if not properly discharged before handling. Discharging the capacitors ensures that any stored energy is safely released, reducing the risk of electric shock or damage to the equipment.Rate this question:
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- 2.
2. What is the TAG's first step in installing the strobe units?
- A.
Position the strobe master unit so that its window faces away from the runway
- B.
Position the strobe master unit so that its window faces toward the runway
- C.
Position the series circuit adapter (SCA) nest to the strobe slave
- D.
Connect the strobe unit to the SCA
Correct Answer
A. Position the strobe master unit so that its window faces away from the runwayExplanation
The first step in installing the strobe units is to position the strobe master unit so that its window faces away from the runway. This is important because positioning the window towards the runway could cause distraction or glare for pilots during takeoff or landing. By facing the window away from the runway, the strobe light can effectively illuminate the surrounding area without causing any obstruction or safety concerns for aircraft operations.Rate this question:
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- 3.
3. What is the next step after the TAG installs the 1000 foot crossbar?
- A.
Go back to the outboard strobe location and install it
- B.
Go directly to the threshold and position the lights
- C.
Position the inboard strobe slave unit
- D.
Install the approach lights
Correct Answer
D. Install the approach lightsExplanation
After the TAG installs the 1000 foot crossbar, the next step is to install the approach lights.Rate this question:
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- 4.
4. What is the final step in installing the runway edge lights?
- A.
Connect the fixture to an isolation transformer
- B.
Connect the fixture to the rest of the airfield circuit
- C.
Install an isolation transformer inboard of the fixture
- D.
Anchor each light fixture with two ballast rings or one stake
Correct Answer
D. Anchor each light fixture with two ballast rings or one stakeExplanation
The final step in installing the runway edge lights is to anchor each light fixture with two ballast rings or one stake. This step ensures that the lights are securely fixed in place and will not be easily dislodged or damaged. Anchoring the fixtures adds stability and durability to the installation, ensuring that the lights will remain in position and continue to function effectively.Rate this question:
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- 5.
5. What do you do first when leveling and aiming a precision approach path indicator (PAPI) unit?
- A.
Level the unit from side to side by adjusting the unit's two front knobs
- B.
Level the unit from front to back by adjusting the unit's rear knob
- C.
Adjust the aim of the unit to provide a 3 degree glide slop
- D.
Adjust the PAPI unit's tilt switch
Correct Answer
A. Level the unit from side to side by adjusting the unit's two front knobsExplanation
To level and aim a precision approach path indicator (PAPI) unit, the first step is to level the unit from side to side by adjusting the unit's two front knobs. This ensures that the unit is balanced horizontally and allows for accurate readings. Adjusting the unit's rear knob is for leveling the unit from front to back, which is the second step in the process. The aim of the unit is then adjusted to provide a 3-degree glide slope, and the PAPI unit's tilt switch is used to maintain the desired angle.Rate this question:
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- 6.
6. What is the final step in installation of the precision approach path indicator (PAPI) units?
- A.
Install a photocell on either unit
- B.
Stake each unit securely to the ground
- C.
Align each unit so that it is parallel with the runway
- D.
Adjust the tilt switch so that the bubble is in the middle
Correct Answer
D. Adjust the tilt switch so that the bubble is in the middleExplanation
The final step in the installation of the precision approach path indicator (PAPI) units is to adjust the tilt switch so that the bubble is in the middle. This step ensures that the PAPI units are properly calibrated and aligned, allowing pilots to accurately judge their approach and descent during landing.Rate this question:
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- 7.
7. How do you begin the procedure for installing the emergency airfield lighting system obstruction lights?
- A.
Install the batteries into the fixture
- B.
Connect the fixture straight into the runway circuit
- C.
Connect the fixture to the runway circuit through a transformer
- D.
Connect the fixture to the runway circuit through a series circuit adapter (SCA)
Correct Answer
A. Install the batteries into the fixtureExplanation
To begin the procedure for installing the emergency airfield lighting system obstruction lights, the first step is to install the batteries into the fixture. This is necessary to ensure that the lights have a power source and can function properly. Once the batteries are installed, the lights can be connected to the runway circuit either directly or through a transformer or series circuit adapter (SCA) to complete the installation process.Rate this question:
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- 8.
8. When performing an open circuit test on the regulator, what is the next step after turning the circuit breaker off?
- A.
Turn the intensity selector switch to the OFF position
- B.
Turn the intensity selector switch to the LOW intensity setting
- C.
Install the male to male adapter cable into the output current plugs
- D.
Remove the male to male adapter cable from the output current plugs
Correct Answer
D. Remove the male to male adapter cable from the output current plugsExplanation
After turning the circuit breaker off during an open circuit test on the regulator, the next step is to remove the male to male adapter cable from the output current plugs.Rate this question:
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- 9.
9. When replacing a lamp on a runway edge light, how do you remove the lamp from its base?
- A.
Grip the lamp by its ceramic base and pull straight up
- B.
Turn the lamp in a counter clockwise direction
- C.
Loosen the screws holding the lamp in place
- D.
Turn the lamp in a clock wise direction
Correct Answer
A. Grip the lamp by its ceramic base and pull straight upExplanation
To remove the lamp from its base, you should grip the lamp by its ceramic base and pull straight up. This method allows for a secure grip on the lamp and ensures that it is removed without damaging any other components. Turning the lamp in a counter clockwise or clockwise direction, or loosening the screws holding the lamp in place, are not the correct methods for removing the lamp.Rate this question:
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- 10.
10. How do you remove the red lens from an obstruction light?
- A.
Unscrew the lens in a clock wise direction
- B.
Unscrew the lens in a counter clockwise direction
- C.
Remove teh screws holding the lens in place and pull the lens straight up
- D.
Loosen the screws holding the lens in place, turn it to the right, and pull it straight up
Correct Answer
D. Loosen the screws holding the lens in place, turn it to the right, and pull it straight upExplanation
To remove the red lens from an obstruction light, one should loosen the screws that hold the lens in place, then turn it to the right, and finally pull it straight up.Rate this question:
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- 11.
11. Which of the following is a step in the process of changing out a lamp in a strobe unit?
- A.
Disconnect the fixture from the series circuit adapter
- B.
Disconnect the fixture from the airfield circuit
- C.
Connect the fixture's case to ground
- D.
Short th capacitors
Correct Answer
D. Short th capacitorsExplanation
Shorting the capacitors is a step in the process of changing out a lamp in a strobe unit. Shorting the capacitors helps to discharge any stored electrical energy in the capacitors, ensuring safety during the lamp replacement process. This prevents the risk of electric shock or damage to the equipment.Rate this question:
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- 12.
12. What is the procedure for removing the electrical connection from a precision approach path indicator (PAPI) lamp?
- A.
Loosen the terminal screw and remove the connection from the lamp
- B.
Push in the connector and turn it counterclockwise
- C.
Pull the connection straight back off the lamp
- D.
Push in the connector and turn it clockwise
Correct Answer
B. Push in the connector and turn it counterclockwiseExplanation
To remove the electrical connection from a precision approach path indicator (PAPI) lamp, you need to push in the connector and turn it counterclockwise. This action will disconnect the connection and allow you to remove the lamp.Rate this question:
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- 13.
13. What generator is used for emergency backup of facilities that are mission essential, such as communications centers and command posts?
- A.
Mep 805
- B.
Mep 805A
- C.
Mep 806A
- D.
Mep 807
Correct Answer
C. Mep 806AExplanation
The MEP 806A generator is used for emergency backup of mission essential facilities like communications centers and command posts.Rate this question:
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- 14.
14. Besides conductor size, what is another important factor to consider when reducing voltage drop in an electrical circuit?
- A.
Conduit size
- B.
Insulation type
- C.
Equipment load
- D.
Circuit distance
Correct Answer
D. Circuit distanceExplanation
When reducing voltage drop in an electrical circuit, besides conductor size, another important factor to consider is the circuit distance. The longer the distance the electricity has to travel, the higher the resistance and voltage drop in the circuit. Therefore, minimizing the circuit distance is crucial to reduce voltage drop and ensure efficient power transmission.Rate this question:
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- 15.
15. 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
- A.
77.8 ohms
- B.
155.6 ohms
- C.
0.1556 ohms
- D.
0.00778 ohms
Correct Answer
D. 0.00778 ohmsExplanation
The resistance of the copper conductor is given as 0.778 ohms for every 1,000 feet. Since the length of the cable run is only 100 feet, we need to calculate the resistance for this length. To do this, we can use the formula:
Resistance = (Length of cable run / 1,000) * Resistance per 1,000 feet
Plugging in the values, we get:
Resistance = (100 / 1,000) * 0.778
Resistance = 0.1 * 0.778
Resistance = 0.0778 ohms
Therefore, the total resistance for the 100 feet cable run is 0.0778 ohms, which is equivalent to 0.00778 ohms.Rate this question:
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- 16.
16. How do you start the engine of a mission essential power (MEP) 806B generator?
- A.
Turn on the engine control switch
- B.
Close the engine control switch
- C.
Close the engine control circuit breaker
- D.
Hold engine control switch in the start for 2 seconds
Correct Answer
D. Hold engine control switch in the start for 2 secondsExplanation
To start the engine of a mission essential power (MEP) 806B generator, you need to hold the engine control switch in the start position for 2 seconds. This action will initiate the starting sequence and allow the engine to begin running.Rate this question:
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- 17.
17. What is the first step to shutting down a generator?
- A.
Turn off the generator
- B.
Place engine control switch in the off position
- C.
Select shutdown computer on CIM display screen
- D.
Hold alternating current (AC) circuit interrupt switch in the open position to open the load contactor
Correct Answer
D. Hold alternating current (AC) circuit interrupt switch in the open position to open the load contactorExplanation
The correct answer is to hold the alternating current (AC) circuit interrupt switch in the open position to open the load contactor. This step is necessary to disconnect the load from the generator and ensure that no electricity is being produced or supplied. By opening the load contactor, the generator is effectively shut down and can be safely turned off.Rate this question:
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- 18.
18. When operating in extremely cold climates, what must you do to prevent the battery from freezing when you add water?
- A.
Reposition the battery closer to the engine
- B.
Use a weak salt solution to fill the battery
- C.
Immediately mix the fluid by charging the battery
- D.
Do not add fluid when below freezing temperatures are expected
Correct Answer
C. Immediately mix the fluid by charging the batteryExplanation
To prevent the battery from freezing when adding water in extremely cold climates, it is necessary to immediately mix the fluid by charging the battery. This is because charging the battery helps to circulate the fluid and prevent it from freezing. Repositioning the battery closer to the engine may provide some warmth, but it does not address the issue of preventing the fluid from freezing. Using a weak salt solution may damage the battery and is not recommended. Additionally, it is not advisable to add fluid when below freezing temperatures are expected as it may cause the fluid to freeze and damage the battery.Rate this question:
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- 19.
19. The Basic Expeditionary Airfield Resources Order of Battle (BOB) is based on increments on of how many personnel?
- A.
250
- B.
500
- C.
750
- D.
1000
Correct Answer
A. 250Explanation
The Basic Expeditionary Airfield Resources Order of Battle (BOB) is based on increments of 250 personnel. This means that the BOB can be adjusted in increments of 250 to accommodate different levels of personnel needed for an expeditionary airfield.Rate this question:
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- 20.
20. On a 25 kw power distribution panel (PDP), what is the 60 amp output utilized for?
- A.
To connect another PDP
- B.
This PDP does not have 60 amp output
- C.
Backfeed connection from the secondary distribution panel (SDC)
- D.
To connect a field deployable environmental control unit (FDECU)
Correct Answer
D. To connect a field deployable environmental control unit (FDECU)Explanation
The 60 amp output on a 25 kW power distribution panel (PDP) is utilized to connect a field deployable environmental control unit (FDECU). This means that the PDP has the capability to provide power to the FDECU, which is a portable unit used for controlling the environment in field operations.Rate this question:
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- 21.
21.How many lights masts come with the remote area lighting system (RALS)?
- A.
11
- B.
12
- C.
13
- D.
14
Correct Answer
C. 13Explanation
The correct answer is 13. The remote area lighting system (RALS) comes with 13 lights masts.Rate this question:
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- 22.
22. What is the proper wattage and lamp type used on the remote area lighting systems (RALS)?
- A.
500 watt quartz
- B.
250 watt halogen
- C.
100 watt low pressure sodium
- D.
150 watt high pressure sodium
Correct Answer
D. 150 watt high pressure sodiumExplanation
The proper wattage and lamp type used on the remote area lighting systems (RALS) is 150 watt high pressure sodium. This type of lamp provides a bright and efficient lighting solution for remote areas.Rate this question:
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- 23.
23. You can establish automatic operation of a fully operational remote area lighting system (RALS) by positioning the override switch to
- A.
ON
- B.
OFF
- C.
AUTO
- D.
MANUAL
Correct Answer
C. AUTOExplanation
Positioning the override switch to AUTO allows for the automatic operation of a fully operational remote area lighting system (RALS). This means that the system will be able to function on its own without manual intervention. It will automatically turn on and off based on pre-set conditions or sensors, ensuring that the lighting system operates efficiently without the need for constant monitoring or adjustment.Rate this question:
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- 24.
24. What is the output rating of the diesel generator on the telescoping floodlight set?
- A.
30 kW
- B.
15 kW
- C.
10 kW
- D.
6 kW
Correct Answer
D. 6 kWExplanation
The output rating of the diesel generator on the telescoping floodlight set is 6 kW. This means that the generator is capable of producing a maximum power output of 6 kilowatts.Rate this question:
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- 25.
25. For proper operation, you need to keep the telescoping floodlight set generator output between
- A.
97 and 110 VAC
- B.
119 and 15 VAC
- C.
197 and 210 VAC
- D.
233 and 247 VAC
Correct Answer
D. 233 and 247 VACExplanation
The correct answer is 233 and 247 VAC. This is because the generator output needs to be within this voltage range for the telescoping floodlight set to operate properly. If the voltage is too low or too high, it may cause damage to the floodlight set or result in inefficient operation.Rate this question:
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- 26.
26. What is the full height of the telescoping floodlight set trailer tower?
- A.
26 feet
- B.
29 feet
- C.
30 feet
- D.
35 feet
Correct Answer
B. 29 feetExplanation
The correct answer is 29 feet. This means that the full height of the telescoping floodlight set trailer tower is 29 feet.Rate this question:
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- 27.
27. How often must you clean the air filter in the generator on the telescoping floodlight set when operating under dusty conditions?
- A.
Once a day
- B.
Once a week
- C.
Every 8 hours
- D.
Every 16 hours
Correct Answer
A. Once a dayExplanation
In dusty conditions, the air filter in the generator on the telescoping floodlight set needs to be cleaned once a day. Dust can accumulate quickly and clog the air filter, reducing the efficiency of the generator and potentially causing damage. Cleaning the air filter regularly ensures proper airflow and optimal performance of the generator.Rate this question:
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- 28.
28. The reverse osmosis water purification unit (ROWPU) requires a power supply capable of providing
- A.
240/416 VAC
- B.
120/208 VAC
- C.
240 VAC
- D.
120 VAC
Correct Answer
B. 120/208 VACExplanation
The reverse osmosis water purification unit (ROWPU) requires a power supply capable of providing 120/208 VAC. This means that the unit needs a power supply that can deliver both 120 volts and 208 volts of alternating current. This is important because the ROWPU likely has components that require different voltage levels to operate effectively. By having a power supply that can provide both voltages, the unit can be powered properly and function efficiently.Rate this question:
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- 29.
29. What is used to ground the reverse osmosis water purification unit (ROWPU)?
- A.
The contact between the earth and the frame of the unit is sufficient ground
- B.
A three piece ground rod that is stored on the control panel
- C.
A 3/4 in ground rod that is 10 feet in length
- D.
A 10 foot metal discharge pipe
Correct Answer
B. A three piece ground rod that is stored on the control panelExplanation
The correct answer is A three piece ground rod that is stored on the control panel. This is the correct answer because a three piece ground rod is specifically designed for grounding purposes and is stored on the control panel for easy access. It is important to ground the reverse osmosis water purification unit to ensure safety and proper functioning of the equipment.Rate this question:
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- 30.
30. What safety precaution should be taken prior to disconnection any pipes or equipment on the reverse osmosis water purification unit (ROWPU)?
- A.
Close all control valves
- B.
Open all drains and vents
- C.
Turn off chemical feed pumps
- D.
Prime the reverse osmosis pump
Correct Answer
B. Open all drains and ventsExplanation
Prior to disconnecting any pipes or equipment on the reverse osmosis water purification unit (ROWPU), it is important to open all drains and vents. This safety precaution helps to release any built-up pressure or trapped fluids in the system, preventing potential accidents or injuries during disconnection. By opening all drains and vents, any remaining water or chemicals can safely exit the system, ensuring a controlled and safe disconnection process.Rate this question:
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- 31.
31. Where is the reverse osmosis water purification unit (ROWPU) ground rod stored?
- A.
Under the circuit breaker box
- B.
In the generator compartment
- C.
Under the junction box
- D.
On the control panel
Correct Answer
D. On the control panelExplanation
The reverse osmosis water purification unit (ROWPU) ground rod is stored on the control panel.Rate this question:
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- 32.
32. Which contingency asset requires two dedicated secondary distribution centers (SDC) to meet its high load demands?
- A.
Field laundry unit
- B.
Harvest eagle kitchen
- C.
Reverse osmosis water purification unit (ROWPU)
- D.
Basic expeditionary airfield resources (BEAR) kitchen
Correct Answer
D. Basic expeditionary airfield resources (BEAR) kitchenExplanation
The basic expeditionary airfield resources (BEAR) kitchen requires two dedicated secondary distribution centers (SDC) to meet its high load demands. This means that in order to adequately supply the BEAR kitchen with the necessary resources, such as food and equipment, two separate distribution centers are needed. This is likely due to the large volume of supplies required to support the kitchen's operations and the need for redundancy in case one distribution center is unable to meet the demand.Rate this question:
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- 33.
33. The basic expeditionary airfield resources (BEAR) kitchen is powered by two generators, one 60 Kw and one
- A.
5 kW
- B.
30 kW
- C.
100 kW
- D.
200 kW
Correct Answer
B. 30 kWExplanation
The BEAR kitchen is powered by two generators, one being 60 kW and the other being 30 kW. The total power output of the generators is 90 kW.Rate this question:
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- 34.
34. When operating how often is the basic expeditionary airfield resources (BEAR) kitchen electrical system inspected?
- A.
Quarterly
- B.
Monthly
- C.
Weekly
- D.
Daily
Correct Answer
C. WeeklyExplanation
The basic expeditionary airfield resources (BEAR) kitchen electrical system is inspected on a weekly basis. This regular inspection ensures that the electrical system is functioning properly and helps to identify any potential issues or hazards. Conducting weekly inspections allows for timely maintenance and repairs, minimizing the risk of electrical failures or accidents.Rate this question:
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- 35.
35. What is the primary distribution voltage of the basic expeditionary airfield resources (BEAR) electrical system?
- A.
12,470 VAC
- B.
4,160 VAC
- C.
2,400 VAC
- D.
240 VAc
Correct Answer
B. 4,160 VACExplanation
The primary distribution voltage of the basic expeditionary airfield resources (BEAR) electrical system is 4,160 VAC. This voltage level is commonly used for industrial and commercial applications. It is higher than the standard residential voltage of 240 VAC and lower than the higher voltage levels used for transmission and distribution of electricity.Rate this question:
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- 36.
36. What is the output of the 750 kW mission essential power (MEP)-12 generator in a basic expeditionary airfield resources (BEAR) package?
- A.
Three-phase 4160 volts
- B.
Three-phase 2400 volts
- C.
Single-phase 4160 volts
- D.
Single-phase 2400 volts
Correct Answer
A. Three-phase 4160 voltsExplanation
The output of the 750 kW mission essential power (MEP)-12 generator in a basic expeditionary airfield resources (BEAR) package is three-phase 4160 volts.Rate this question:
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- 37.
37. What type of cable termination is used for the primary switching center (PSC) connections?
- A.
Joy splices
- B.
Load break elbows
- C.
Tape termination kits
- D.
Heat shrink molded terminations
Correct Answer
B. Load break elbowsExplanation
Load break elbows are used for cable terminations in primary switching centers (PSC). Load break elbows are designed to provide a reliable and safe connection for high voltage cables. They allow for easy installation and removal of cables without the need for specialized tools or equipment. Load break elbows also provide a sealed and insulated connection, protecting the cables from moisture and other environmental factors. Overall, load break elbows are the preferred choice for cable terminations in PSCs due to their convenience, reliability, and safety features.Rate this question:
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- 38.
38. Which way point is used to tie two primary switching centers (PCS) together?
- A.
3
- B.
4
- C.
5
- D.
6
Correct Answer
D. 6Explanation
Way point 6 is used to tie two primary switching centers (PCS) together.Rate this question:
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- 39.
39. When connection two primary switching centers (PCS) together using 500 MCM copper cable, what is required to make the connection?
- A.
200 amp loadbreak
- B.
600 amp loadbreak
- C.
200 amp deadbreak
- D.
600 amp deadbreak
Correct Answer
D. 600 amp deadbreakExplanation
To connect two primary switching centers (PCS) together using 500 MCM copper cable, a 600 amp deadbreak is required. Deadbreak connectors are designed to be disconnected or connected under load without exposing live parts, ensuring safety during the process. The 600 amp rating indicates the maximum current capacity that the deadbreak connector can handle, making it suitable for this connection.Rate this question:
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- 40.
40. What is used to compensate for voltage drop in a secondary distribution center (SCD)?
- A.
Larger cable
- B.
Tap changes
- C.
Copper conductors
- D.
200 kVA transformer
Correct Answer
B. Tap changesExplanation
Tap changes are used to compensate for voltage drop in a secondary distribution center (SCD). When there is a significant voltage drop in the distribution system, tap changes allow for adjustments to the transformer's winding ratio, thereby regulating the voltage output. This ensures that the desired voltage is maintained at the secondary distribution center despite any voltage drop that may occur.Rate this question:
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- 41.
41. What is the conductor size and insulation value of the basic expeditionary airfield resources (BEAR) high voltage electrical cable?
- A.
#6, 15 kV
- B.
#1/0, 5kV
- C.
#6, 5 kV
- D.
#1/0, 15 kV
Correct Answer
B. #1/0, 5kVExplanation
The correct answer is #1/0, 5kV. This indicates that the conductor size of the BEAR high voltage electrical cable is #1/0 and the insulation value is 5kV.Rate this question:
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- 42.
42. You should bury primary cables to a depth of at least
- A.
8 inches
- B.
12 inches
- C.
18 inches
- D.
24 inches
Correct Answer
C. 18 inchesExplanation
Primary cables should be buried to a depth of at least 18 inches. This depth is necessary to protect the cables from damage caused by external factors such as weather conditions, human activity, and wildlife. Burying the cables at this depth ensures that they are well-protected and reduces the risk of accidental damage or disruption to the electrical system.Rate this question:
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- 43.
43. How many ways on the primary switching center (PSC) have load interrupter switches?
- A.
1
- B.
2
- C.
6
- D.
4
Correct Answer
B. 2Explanation
The correct answer is 2 because load interrupter switches are used in pairs for redundancy and reliability. This means that there are two load interrupter switches on the primary switching center (PSC) to ensure that if one switch fails, the other one can still handle the load.Rate this question:
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- 44.
44. Before performing maintenance on the secondary distribution center (SDC) you
- A.
Shut down the primary switching center (PSC)
- B.
Close the mission essential power breaker
- C.
Contact the disaster control center
- D.
Ensure all power is removed
Correct Answer
D. Ensure all power is removedExplanation
Before performing maintenance on the secondary distribution center (SDC), it is necessary to ensure all power is removed. This is important to prevent any electrical accidents or damage to equipment during the maintenance process. By removing all power, it ensures that there is no electrical current flowing through the system, making it safe to work on.Rate this question:
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- 45.
45. What is the mostly likely problem when there is no power to any of the outbound primary distribution center feeders?
- A.
Defective load break elbow
- B.
High voltage cable failure
- C.
200 amp fuse blown
- D.
Power source failure
Correct Answer
D. Power source failureExplanation
The most likely problem when there is no power to any of the outbound primary distribution center feeders is a power source failure. This means that the source of power, such as a generator or transformer, is not functioning properly or has completely stopped working. This would result in no power being supplied to the distribution center, causing all the feeders to be without power.Rate this question:
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- 46.
46. The recommended distance for secondary runs from secondary distribution center (SDC) is not to exceed
- A.
400 feet
- B.
600 feet
- C.
800 feet
- D.
1,000 feet
Correct Answer
C. 800 feetExplanation
The recommended distance for secondary runs from secondary distribution center (SDC) is not to exceed 800 feet. This distance is likely determined based on factors such as the efficiency of power transmission and potential voltage drops over longer distances. By limiting the distance to 800 feet, the secondary runs can maintain a more reliable and stable power supply.Rate this question:
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- 47.
47. What basic expeditionary airfield resources (BEAR) asset is used as the main distribution point for secondary circuits?
- A.
Contractor control cubicles
- B.
Primary switching center (PSC)
- C.
Remote airfield lighting set (RALS)
- D.
Secondary distribution center (SDC)
Correct Answer
D. Secondary distribution center (SDC)Explanation
The secondary distribution center (SDC) is used as the main distribution point for secondary circuits in basic expeditionary airfield resources (BEAR). This means that the SDC is responsible for distributing power to various secondary circuits throughout the expeditionary airfield. The other options, such as contractor control cubicles, primary switching center (PSC), and remote airfield lighting set (RALS), do not fulfill this role.Rate this question:
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- 48.
48. How many 120/208 volts alternating current output circuits can the secondary distribution center (SDC) provide?
- A.
2
- B.
6
- C.
12
- D.
16
Correct Answer
D. 16Explanation
The secondary distribution center (SDC) can provide 16 circuits of 120/208 volts alternating current output.Rate this question:
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- 49.
49. Which power distribution panel is associated with the tent extendible modular personnel (TEMPER) tent?
- A.
15 kW
- B.
25 kW
- C.
100 kW
- D.
200 kW
Correct Answer
B. 25 kWExplanation
The 25 kW power distribution panel is associated with the TEMPERS tent. This panel is specifically designed to provide power to the TEMPERS tent, which is a modular personnel tent used by military forces. The 25 kW power distribution panel is capable of supplying the necessary electrical power to support the various equipment and systems within the tent, ensuring that it can function effectively in various operational environments.Rate this question:
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- 50.
50. What cable size is used to connect the low voltage mission essential power (MEP) generator to the secondary distribution center (SDC)?
- A.
100 foot 60 amp
- B.
50 foot 150 amp
- C.
25 foot 200 amp
- D.
25 foot 100 amp
Correct Answer
C. 25 foot 200 ampExplanation
The correct answer is 25 foot 200 amp. This cable size is used to connect the low voltage MEP generator to the SDC. The 25 foot length ensures that the generator can be placed at a reasonable distance from the SDC while still maintaining a secure connection. The 200 amp capacity is necessary to handle the power load from the generator and distribute it to the SDC effectively.Rate this question:
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