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Electrical Theory Path to Excellence 280 Targeted Questions for Top Grades Answer Keys Unlocked: Navigate Your Way to Success|16 Pages€8,58
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Electrical Theory Path to Excellence 280 Targeted Questions for Top Grades Answer Keys Unlocked: Navigate Your Way to Success|16 Pages
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Electrical Theory Path
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Electrical Theory Path
1.- Nonshielded conductors over 700 V shall be __________ - ️️GROUNDED
2.- What is the minimum distance that is allowed between switchgear and an outdoor oil storage tank? - ️️10 Feet.
3.- What is the minimum vertical separation on a Pole between the supply cable and the lowest communicat...
Electrical Theory Path to Excellence 280
Targeted Questions for Top Grades
1.- Nonshielded conductors over 700 V shall be __________ - ✔ ✔ GROUNDED
2.- What is the minimum distance that is allowed between switchgear and an outdoor oil storage tank? -
✔ ✔ 10 Feet.
3.- What is the minimum vertical separation on a Pole between the supply cable and the lowest
communication attachment. - ✔ ✔ 16 Inches
4.- The vertical clearance for insulated communication conductors above or crossing Railroads tracks
shall be __________feet. - ✔ ✔ 23.5 Feet
5.- Minimum clearance for non-insulated communications conductors over pedestrian walkways shall be
__________feet. - ✔ ✔ 12 Feet
6.- Minimum clearance of open supply conductors over 750 V to 22 KV crossing over bridges shall be
___________feet. - ✔ ✔ 5.5 Feet.
7.- The minimum vertical clearance between ordinary supply conductors over 8.7 KV and
communications conductors shall be _______inches. - ✔ ✔ 40 + 0.4 per KV over 8.7 KV
8.- Backfill within 6" of conduit should be free of solid material greater than __________maximum
dimension. - ✔ ✔ 4 Inches.
9.- In Underground structures, horizontal runs of supply cables shall be supported at least ______above
the floor. - ✔ ✔ 3 Inches.
10.- What is the minimum burial depth for a 22 KV conductor? - ✔ ✔ 30 Inches
11.- What is the minimum flush burial depth of a 500 Volt conductor? - ✔ ✔ 24 Inches.
12.- Pad mounted equipment shall not be located less than ______feet from hydrants - ✔ ✔ 4 Feet.
13.- Bonding shall be provided between all above ground metallic power and communication apparatus
that are separated _______ or less. - ✔ ✔ 6 Feet.
14.- According to the NESC, fall protection is required for over ________ feet elevation. - ✔ ✔ 10
Feet.
15.- A buried_________ Shall be used to bond across a gate, unless a non-conducting fence section is
used. - ✔ ✔ Bonding Jumper.
,16.- Where guarding is required, grounding conductor guards should extend for not less than
______feet above the ground or platform from which the grounding conductors are accessible to the
public. - ✔ ✔ 8 Feet.
17.- Strips of metal not less than_______ in total length constitute an acceptably made electrode. - ✔
✔ 10 Feet.
18.- In areas with high soil sensitivity or shallow bedrock, buried strips of metal not less than _______in
total length, constitute an acceptably made electrode. - ✔ ✔ 10 Feet.
19.- Pole butt plates shall not be less than ______thick. - ✔ ✔ 1/4 Inch.
20.- Copper wire wrap shall have a continuous bare length below the ground level not less than
_______Feet. - ✔ ✔ 12 Feet.
21.- Copper wire wrap shall not be smallest than _______. - ✔ ✔ 6 AWG.
22.- Minimum overhang for insulated communication conductors over Roads and Parking Lots Shall be
______Feet - ✔ ✔ 15.5 Feet.
23.- The suppler or conductor that installs house fire warning is required to provide the building owner
with all the following materials except: - ✔ ✔ Drawing that shows the interconnection of Tandem
connected detectors
24.- On a Beam Ceiling where the Beams are less than 12" in depth and spacing is less than 96", where
should the smoke detectors be mounted. - ✔ ✔ Bottom of the Beam
25.- The maximum Air velocity for a smoke detector is __________ - ✔ ✔ 300 Fpm.
26.- Visible notification appliances located in corridors shall be space no more than ______feet apart -
✔ ✔ 100 Feet.
27.- Given: A smoke detection system is been installed to automatically close a double door way in
response to smoke blowing in either direction. The ceiling is smooth, where must be the smoke detector
be installed? - ✔ ✔ On the center line of the doorway.
28.- On a voice alarm System, what is the minimum number of cycles it has to report an evacuation
procedure? - ✔ ✔ 2
29.- A single store dwelling unit has two bedrooms that are not located near to one another. What is the
minimum required number of smoke alarms required? - ✔ ✔ 4
30.- HEAT DETECTORS used within a single family unit must be listed or approved for not less than
_______spacing - ✔ ✔ 50 Feet.
31.- What is a privately owned and monitored alarm system classified as? - ✔ ✔ Proprietary System.
, 32.- What is a Decibel? - ✔ ✔ 1/10 of a Bell.
33.- Notification appliances of a local protective signaling system must include on their
nameplate_______. - ✔ ✔ Electrical requirements & Rated audible or visible performance
34.- A fire alarm system is required or a visible notification device when the ambient sound is Greater
than ? - ✔ ✔ 105 dBa.
35.- What is the maximum blink rate on a strobe light on a notification appliance per second? - ✔ ✔
2.
36.- What is the maximum interval that a fire alarm signal is allowed at the console? - ✔ ✔ 15 sec.
37.- What is the detector that is mounted on the ceiling or wall that reacts to converted Thermal
reaction? - ✔ ✔ HEAT DETECTOR.
38.- Components that are non fire alarm and connected commonly to fire alarm, components are
considered what type of system? - ✔ ✔ Combination System.
39.- Electrical Power is measured in _____________ - ✔ ✔ WATTS.
40.- You have a frequency that has been amplified to four frequencies. This change is called: - ✔ ✔
FREQUENCY MULTIPLEXING.
41.- What type of a Network is not considered Multipoint. - ✔ ✔ Point to Point.
42.- When a company ties together different devices such as COMPUTERS & PRINTERS, What is the
result? - ✔ ✔ A Network.
43.- Which part of a Power supply converts electrical current from AC to DC? - ✔ ✔ RECTIFER.
44.- The standard Impedance of a video Coaxial cable is _____ Ohms - ✔ ✔ 75 Ohms.
45.- Telecom Wire is grounded on each end. What is the electrical Path called? - ✔ ✔ Ground Loop
46.- A voltmeter will test all of the following, except: - ✔ ✔ POWER.
47.- What is the disadvantages of Fiber Optics over Copper? - ✔ ✔ COST.
48.- What is the measurement of the amount of signal for Fiber Optics? - ✔ ✔ BANDWIDTH
49.- Switch S1 is in the ON position but light L does not come on. Voltages across S1 is measured to be
120 Volts, Voltage across L1 is measured to be 0 Volts. The light does not come on because: - ✔ ✔
Lamp is good, but the switch does not make contact.
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