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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| show | 1/2 inch
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| show | 5/8 inch
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| show | 75' or lower smaller than class 2
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| show | 75' larger and heavier
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| show | 10 ft.
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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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| show | For every 100 ft. Of roof perimeter over 250 ft.
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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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| show | Surge suppression devices to dispose of ant unwanted electrical currents attempting to enter the building through conductive wiring
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| Bimetallic can't be used within______ of earths surface | show 🗑
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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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| show | When it is on a list published by an organization
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| show | A conductor that encircles a structure that interconnecs ground electrodes
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| Depth of topsoil before encasement in concrete | show 🗑
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| How many feet between supports of cables | show 🗑
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| show | 25 ft.
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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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| show | Speed of motor RPM,speed of generator
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| Magnetic flux is densist and magnetic force is strongest | show 🗑
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| Change the direction of DC motor | show 🗑
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| show | Switch the legs
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| Trouble shooting motors use a | show 🗑
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| What is connected to the rotor of a wound rotor motor specifically the set of secondary resistor | show 🗑
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| 1 HP = | show 🗑
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| show | 10%
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| show | Horsepower/watts
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| show | Normal starting torque and normal starting current
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| show | Normal starting torque low starting current *most common
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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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| A _______ DC motor has the highest starting torque characteristic | show 🗑
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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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| show | Drum switch
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| The _______ of a squirrel cage induction motor are short ckt | show 🗑
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| The ______ of a wound rotor motor ate not short ckt | show 🗑
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| show | Commutator
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| Overload relay | show 🗑
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| Primary colors | show 🗑
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| Secondary colors | show 🗑
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| How do u measure lighting | show 🗑
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| What lighting is adjustable | show 🗑
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| show | Counter level
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| show | Describes how long a light source will retain its own lumen output
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| show | Seasonal affective disorder
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| show | Photo biological disorfet
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| Argon and crypton | show 🗑
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| Chief disadvantage to use his and electromagnetic ballast lifting systems is | show 🗑
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| Configurable relay | show 🗑
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| Machine control relay | show 🗑
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| show | A really that enables the energy in a high power ckt to be switched by a low power control signal
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| Recommended d.b. for hazardous situation | show 🗑
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| What % of the world used motors | show 🗑
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| Type of enclosures | show 🗑
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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