| 1. |
Under specific conditions No. 18 AWG and No. 16 AWG conductors used for small motor circuits are permitted to be installed in ___________ .
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a)
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wireways
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b)
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raceways
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c)
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cabinets and enclosures
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| 2. |
Instantaneous trip circuit breakers used for motor branch-circuit short-circuit and ground-fault protection per Section ______ cannot be used for a motor short-circuit protection as permitted in 430.52(C)(7).
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a)
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430.52
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b)
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430.54
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c)
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430.65
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| 3. |
Combustible Dust is any finely divided solid material that is 420 microns (0.017 in.) or smaller in diameter (material passing a U.S. No. 40 Standard Sieve) and ______________ when dispersed and ignited in air.
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a)
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presents a detonation hazard
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b)
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presents a fire or explosion hazard
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c)
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presents a self ignition hazard
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| 4. |
In general, Equipment Bonding Jumper for Class I, Division 1 and 2 hazardous locations for flexible metal conduit or liquidtight flexible metal conduit is permitted to be an equipment bonding jumper of the wire type in compliance with Section __________.
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a)
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250.102
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b)
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250.66
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c)
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250. 21
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| 5. |
For Class I, Division 2 locations the bonding jumper for Flexible metal conduit and liquidtight flexible metal conduit can be deleted for circuits limited to ____________ for listed liquidtight metal conduit 6 ft or less in length and where power utilization equipment is not supplied.
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a)
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30 amperes or less
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b)
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20 amperes or less
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c)
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10 amperes or less
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| 6. |
One option for Class1, Division 1 locations locations where the boxes, fittings, or enclosures are required to be explosionproof, the cord shall be terminated with a cord connector or attachment plug ________ for the location.
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a)
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listed
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b)
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approved
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c)
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identified
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| 7. |
In Class 1, Division 1 locations locations where the boxes, fittings, or enclosures are required to be explosionproof, the cord shall be terminated with a cord connector or attachment plug listed for the location or a __________________________ listed for the location.
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a)
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seal
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b)
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cord connector
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c)
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cord connector installed with a seal
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| 8. |
In Class 1, Division 2 locations where the boxes, fittings, or enclosures are required to be explosionproof, the cord shall be terminated with a cord connector or__________ listed for the location .
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a)
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attachment plug
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b)
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attachment seal
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c)
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attachment connector
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| 9. |
In Class 1, Division 2 locations where the boxes, fittings, or enclosures are required to be __________, the cord shall be terminated with a cord connector or attachment plug listed for the location or a cord connector installed with a seal listed for the location.
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a)
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sealed
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b)
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explosionproof
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c)
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locked
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| 10. |
In Class1, Division 2 locations where explosionproof equipment is not required, the cord shall be terminated with a _______ cord connector or listed attachment plug.
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a)
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listed
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b)
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approved
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c)
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identified
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