Quiz
2W151: Fundamentals of Electricity and Circuits - Quiz 12
Perguntas do quiz (33)
1Following repair actions, how do you check electrical equipment before testing?
- AVisually
- BElectrically
- CMechanically
- DOperationally
2Which technical order contains inspection and repair information that applies across all aircraft wiring systems?
- A1-1A-14
- B1-11A-14
- C14-1A-1
- D11-1A-14
3When do you use compressed air for cleaning electrical equipment
- AOnly as the last resort
- BAfter using dry cleaner
- COnly when oil is applied
- DAfter using chemical cleaners
4What is the maximum allowable pressure to use when cleaning electrical equipment with compressed air?
- A15 psi
- B20 psi
- C25 psi
- D30 psi
5To prevent chafing, the slack in a wiring harness between two support points normally should not exceed
- A1/4 inch
- B3/8 inch
- C1/2 inch
- D5/8 inch
6What is the only real cure for wire chafing problems?
- AEliminating the need for fasteners
- Bfollowing proper maintenance procedures
- CEliminating slack from all wiring harnesses
- DEliminating the use of crimped or spliced wires
7Which method is not an acceptable way to prevent possible chaffing problems?
- ARouting coaxial cables in the most direct way possible
- BRouting wires or bundles parallel to the ribs of the aircraft
- CRouting wires and bundles at right angles to the ribs of the aircraft
- DRouting wires and bundles back on themselves and placing the folds inside the bundle
8When installing aircraft wiring, you must ensure wires or wire bundles do not come within
- A1/2 inch of the edge of the hole when routed through a bulkhead opening and when a suitable grommet and clam is installed
- B1 inch of the edge of a hole when routed through a bulkhead opening and when a suitable grommet and clam is installed
- C1/2 inch of the edge of a hole when routed through a bulkhead opening and when a suitable grommet and clamp is installed
- D1/4 inch of the edge of a hole when routed through a bulkhead opening and when a suitable grommet and clamp is installed
9Who initiates a one-time inspection if the sampled aircraft indicates a chafing problem or the detected chafing isn an operational safety hazard?
- AChief quality insurance inspector
- BMaintenance group commander
- CProduction superintendent
- DSquadron commander
10A coaxial cable is protected on the outside by a
- ABraided sleeve
- Bmetal braiding
- Cdielectric material
- Dtough outer jacket
11What is a primary function of the dielectric in coaxial cables?
- AProviding a third highly insulated path for signals and low voltage current
- BProving a low ohmic value conductor between the center and outer conductors
- CMaintaining a protective shield over the inner conductor to prevent transient radio frequency signal interference
- DMaintaining the relative position of the inner conductor inside the outer conductor and therefore keeping the capacitance between the two at a constant value
12Which standard defines implementation requirements of the aircraft/store electrical (fiber optic) Interconnection System (AEIS) in aircraft stores?
- AMIL-STD-1760
- BMIL-STD-1670
- CMIL-STD-1060
- DMIL-STD-760
13When working with coaxial cable, you must never step on it, set anything heavy on it, or bend it sharply because doing so will
- ABegin a weak point for future chaffing to occur
- BCause a weak point for future corrosion to occur
- CCause a weak point for radio frequency intrusion
- DFlatten the cable and change its electrical characteristics
14When installing a connector on coaxial cable, you must use care in starting the braid clamp nut into a plug or jack body to prevent
- ACross-threading
- BDamage to the center pin
- CDamage to the center socket
- DDamage to the cable dielectric
15Who should do electrical repairs?
- AAnyone
- BDegreed personnel only
- CCertified personnel only
- DQualified personnel only
16As a general rule, when you are working on electrical items, they should have the power
- AOff for testing and on for maintenance
- BOn for testing only
- COff
- DOn
17When performing measurements on energized circuits, meters should
- ANot be used
- BBe held by a helper
- CNot be held in your hand
- DBe placed on the equipment tester
18When voltage is applied to equipment being repaired, personnel must
- ARemove all nonessential tools from the workbench
- BStay away from the workbench
- CKeep all tools on hand next to the equipment being repaired
- DRemove essential tools from the equipment being repaired
19What must you do to a salvaged protective boot before you re-install it?
- AHeat it to restore its pliability
- BClean it with a solvent and then heat it to restore its pliability
- CClean it with a solvent and then coat it with an adhesive when thoroughly dry
- DClean it with a solvent then let non-destructive inspection (NDI) personnel inspect it to verify its structural integrity
20When shrinking a protective boot for wiring, work slowly from the
- AInside to the outside
- BConnector to the braid end
- CBraid end tot he connector
- DMiddle of the connector to either end
21What is the only heat gun presently authorized around fueled aircraft?
- AElectrical motor driven heat guns
- BPositive pressure, fully contained flame units
- CSoldering gun mounted fan/heat pump
- DCompressed air/nitrogen heat gun kit
22What do you use to make a spot tie on silicone tape when repairing a wire braid?
- APlastic pull-ties
- BDacron lacing tape
- CNylon lacing tape
- DWaxed lacing string
23The indicating band on the working end of the solderless connector insertion tool determines the
- ACorrect gauge wire to use
- BProper size crimp to be made
- CCorrect depth to insert the tool
- DProper length to strip the insulation off the wire
24You must never use pin insertion tools with burrs or sharp edges because they
- ACan present the insulation of the wire attached to the pin you are trying to install
- BPresent a hazard to the operator possibly causing laceration tooth fingers or other parts of the hands
- CCan cut through the grommet wire sealing webs and destroy the environment sealing capabilities of a connector
- DCan scrape off the letter or number marking on the back of the connector making it more difficult to ensure correct pin insertion
25Similar to contact insertion tools, extraction tools for solder less connectors are
- AOf solid construction
- BFor pin contacts only
- CFor socket contacts only
- DOf different sizes for each contact
26Chaffing is nothing more than some type of constant friction between wiring harnesses and electrical components or between wiring harnesses and the structure to which they are attached.
- AVerdadeiro
- BFalso
27Interior chaffing of a wire is the most common form of chaffing
- AVerdadeiro
- BFalso
28the wings weapons manager monitors and tracks instances of wire, harness, and metal lines/tube chaffing
- AVerdadeiro
- BFalso
29You can interchange cables with different types of dielectric if they are of the same physical and electrical characteristics.
- AVerdadeiro
- BFalso
30Coaxial cable consists of an inner (center) conductor separated rom the outer conducted, usually called a shield, by an insulating dielectric
- AVerdadeiro
- BFalso
31You may split coaxial cable anytime you feel it is necessary to split it.
- AVerdadeiro
- BFalso
32When is a safety observe required when applying voltage?
- AWhen voltage is over 50 volts
- BWhen voltage is under 50 volts
- CWhen voltage is over 300 volts
- DWhen voltage is under 300 volts
33When installing crimp type contacts, you should fill all unused holes of a connector with unwired contacts and sealing plugs.
- AVerdadeiro
- BFalso
Informações
- Descrição
- Quiz 12
- Autor
- Joseph Whilden J
- Idioma
- English
- Visualizações
- 55
- Etiquetas
- Avaliação
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