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Semi final Test

Enter the letter for the matching Answer
incorrect
1.
Recommended d.b. for hazardous situation
incorrect
2.
Change the direction of DC motor
incorrect
3.
The _______ of a squirrel cage induction motor are short ckt
incorrect
4.
What % of the world used motors
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5.
The visual task occurs at the ______ in the kitchen
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6.
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
incorrect
7.
Class 1
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8.
Magnetic flux is densist and magnetic force is strongest
incorrect
9.
NFPA _______ is the standard for the installation of lightning protection systems
incorrect
10.
A _______ DC motor has the highest starting torque characteristic
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11.
Class 2 copper air terminal
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12.
Interposing relay
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13.
What is connected to the rotor of a wound rotor motor specifically the set of secondary resistor
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14.
4 main parts of lightning protection systems
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15.
Class one copper lightning protection terminals have a min.diameter of
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16.
3rd part
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17.
Trouble shooting motors use a
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18.
Motor C
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19.
Secondary colors
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20.
What needs to be at least 10 inches above the object of area its protecting of lightning strikes
A.
1/2 inch
B.
The tip of the air terminal
C.
Disperses lightning strike safety to earth materials,ground rods electrodes,ground rings,radials
D.
Commutator
E.
63%
F.
Series
G.
Slip rings
H.
Digital multi meter
I.
25 above ambient sound
J.
75' or lower smaller than class 2
K.
Cyan magenta yellow
L.
Counter level
M.
1.intercept 2.strike termination devices3.termunal4.lightning rods
N.
Rotor windings
O.
Equal potential
P.
A really that enables the energy in a high power ckt to be switched by a low power control signal
Q.
3/8 inch
R.
780
S.
Has a high starting torque and low starting current
T.
At the poles north pole to south pole
Type the Answer that corresponds to the displayed Question.
incorrect
21.
Change the direction of ac motor
incorrect
22.
Nema
incorrect
23.
How do u measure lighting
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24.
If you have pride you also have to have
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25.
Bimetallic can't be used within______ of earths surface
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26.
SAD and circadian are known as what type of issue
Type the Question that corresponds to the displayed Answer.
incorrect
27.
A conductor that encircles a structure that interconnecs ground electrodes
incorrect
28.
Conductor encircles a structure that is in direct contact with earth
incorrect
29.
A conductor that carries lightning currents between strike terminations devices and grounding electrodes
incorrect
30.
Surge suppression devices to dispose of ant unwanted electrical currents attempting to enter the building through conductive wiring

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Created by: busybee1117