4th year
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| show | 3/8 inch
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| Class 2 copper air terminal | show 🗑
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| Class 1 aluminum air tetminal | show 🗑
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| Class 2 aluminum air terminal | show 🗑
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| show | 75' or lower smaller than class 2
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| Class 2 | show 🗑
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| Ground Rods min. Depth | show 🗑
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| What needs to be at least 10 inches above the object of area its protecting of lightning strikes | show 🗑
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| For lightning protection systems all structures require at least 2 down conductors and at least one additional down conductor | show 🗑
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| show | 780
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| show | 1.intercept 2.strike termination devices3.termunal4.lightning rods
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| 2nd part lightning strikes down the building.includs the bonding of metallic bodies to a LPS conductors in an attempt to keep all metallic components at ___________during lightning strike event | show 🗑
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| show | Disperses lightning strike safety to earth materials,ground rods electrodes,ground rings,radials
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| 4th part | show 🗑
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| show | 18 inches
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| show | Conductor encircles a structure that is in direct contact with earth
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| If you have pride you also have to have | show 🗑
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| show | It means there is some sort of symbol or identifying mark from an organization that is acceptable to AHJ
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| Listed | show 🗑
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| Loop conductor | show 🗑
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| show | Less than 18 inches
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| How many feet between supports of cables | show 🗑
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| Air terminals that extend 24 inches above an object are permitted to be in place of intervals not exceeding ______ | show 🗑
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| Lightning protection in a basement and crawl space? | show 🗑
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| Bonding conductor | show 🗑
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| show | 20 ka
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| Main conductor | show 🗑
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| show | VA
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| The output of an alternator is controlled by a stator or rotor wire length strength of magnetic field | show 🗑
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| show | At the poles north pole to south pole
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| show | Commutator
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| Change the direction of ac motor | show 🗑
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| show | Digital multi meter
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| show | Slip rings
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| 1 HP = | show 🗑
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| show | 10%
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| Motor power is rated in | show 🗑
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| show | Normal starting torque and normal starting current
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| Motor B | show 🗑
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| Motor C | show 🗑
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| show | High starting torque high slip and low starting current
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| show | Series
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| In a 2 pole single phase motor the start winding is placed ____ from the run winding | show 🗑
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| In a capacitor start motor forward and reverse I'd controlled by a | show 🗑
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| show | Rotor windings
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| The ______ of a wound rotor motor ate not short ckt | show 🗑
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| The _______is used in a DC generator to keep the polarity and output in one direction | show 🗑
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| show | Time delay devices that allow temporary overloads without disconnecting the motor
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| show | Blue green red
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| show | Cyan magenta yellow
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| show | Footcandles
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| show | A symmetrical
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| show | Counter level
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| Lumen maintenance | show 🗑
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| What is SAD | show 🗑
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| SAD and circadian are known as what type of issue | show 🗑
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| show | Combined with vaporized mercury produce visible light with phosphor
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| show | Lumen maintenance
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| Configurable relay | show 🗑
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| Machine control relay | show 🗑
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| Interposing relay | show 🗑
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| show | 25 above ambient sound
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| show | 63%
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| show | Type 1 I door,2 outdoor,3 both 4 submerged
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| show | 16 or 22.5 smaller
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| show | 30.5 larger
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Created by:
busybee1117