Voltages Study guides, Class notes & Summaries
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NEIEP 400 Final Exam Version 2 (Latest 2023/ 2024 Update) Questions and Verified Answers| 100% Correct| Grade A
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NEIEP 400 Final Exam Version 2 (Latest 2023/ 2024 Update) Questions and Verified Answers| 100% Correct| Grade A 
 
Q: What is the result of connecting an ammeter to the terminals of a power supply or other voltage source? 
 
Answer: 
 The meter will be damaged. 
 
 
Q: What is correct regarding the transformer? 
 
Answer: 
 applied voltage on the primary leads current by 90 degrees 
 
 
Q: What does two solid lines between two coils represent in a transformer?- 
 
 
Answer: 
 Iron core transform...
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ISA Utility Specialist (Chapters 1-7) | 436 Questions with 100 % correct Answers | Verified and updated
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In the U.S., enforcement of safety work rules resides with: - Occupational Safety & Health 
Administration 
(OSHA) 
Utility pruning is the pruning of trees located in the vicinity of power lines for the purpose of 
__________ __________ __________. - ensuring reliable service 
A comprehensive vegetation management program should be __________ rather than reactive, & based 
on principals of __________ vegetation management. - proactive; 
integrated 
What is a volt? - a unit of electrical force 
M...
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PJM Transmission Exam Study Guide | Questions with 100% Correct Answers | Verified | Latest Update 2024 | 30 Pages
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During System Restoration, what is the optimal Frequency Range? - 59.75 - 61 Hz 
The 500 kV system has normal bus voltages between? - 500 to 550 kV 
When Connecting 2 islands, the operator must match? - Voltage, Phase Angle and Frequency 
What are the Minimum Source Requirements for a 500kV line? (Gen/mile and load/mile) - 30 MW 
Gen/mile of energized 500 kV and 20 MW Load/mile of energized 500 kV 
When will PJM issue a Minimum Generation Alert? (how many MW under normal operating limits) - 
Whe...
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NCCER Test Questions and Answers 100% Pass
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NCCER Test Questions and Answers 100% Pass A UL listed rod type ground electrode must have minimum length of 8'' 
in a circuit of pure capacitance, the current leads the voltage by 90 degrees 
The standard unit for measuring the cross sectional area of wire is the circular mil 
the drawing scale is most likely to be found in the drawing title block 
what is the minimum number of overload sensing units required for all three phase motors 3 
what is the resultant distance between center bends fo...
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NCTI Final Exam Maintance Tech 2-3 Conventional| New Update 2023/ 2024| Verified Questions and ANSWERs
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NCTI Final Exam Maintance Tech 2-3 Conventional| New Update 2023/ 2024| Verified Questions and ANSWERs 
 
 
In a hybrid fiber/coax HFC fiber optic node, what are common voltages produced by DC power supplies? - ANSWER Common Voltage includes +5, +12 and +24 VDC 
 
 
 
 
Why do many optical nodes accept two independent power supplies? - ANSWER For redundant Powering of the node. 
 
 
 
 
What is an o...
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BICSI Practice Test exam 2023 with 100% correct answers
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The 2 main considerations concerning the existing cabling are? - correct answer Grandfathered system 
Abandoned cable 11-25 
 
The type of cutover where cross-connects are relocated one pair after another until completed is called a - correct answer rolling cut 11-28 
 
Which practice involves moving the customer to a temporary office space until their section of the retrofit is completed and then moving them back to their recabled office space? - correct answer Swing space phasing 
 
Whic...
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Elevator Mechanic Study Test 2024.
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Elevator Mechanic Study Test 2024. 
A Latching relay: Used for call registration,direction selection or as selector relays 
Two types are: Set/Rest are electrical and Mechanical Latching relays 
Need to know latching relay symbol, Its a box with shaded triangle in lower right hand corner. - ANSWER Which relay do you need to Order 
 
710 Pg, 7 
 
RPM = 60 ∙ ƒ ÷ P÷2 = 
Step 1. 60 x Frequency (Hz.) = 
Step 2. Poles ÷ 2 = 
Take answer 1 and ÷ by answer 2 = - ANSWER Know the formula for RPM ...
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Electrician NCCER |354 questions| with correct answers
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Which article of the NEC covers grounding? CORRECT ANSWER Article 250 
 
What is a dropout plate? CORRECT ANSWER Metal plate with a curve surface for cable to follow as it passes from the tray 
 
All of the following are common service voltages in the United States Except: CORRECT ANSWER 372/575 3-Phase, 4-wire 
 
What does a GFCI breaker do? CORRECT ANSWER Opens a circuit to prevent operation of an electrical device 
 
What will happen when one or more coils in a winding are grounded? CORRECT A...
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NETA level II exam questions & answers 2023
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NETA level II exam questions & answers 2023 What is the preferred method of performing primary-injection testing on a low voltage circuit breaker with ground fault protection? 
 
Use of the manufacturer's test kit or rewiring the neutral CT input is the preferred method of primary-injection testing on a low voltage circuit breaker with ground fault protection, otherwise two poles can be connected in series to provide balanced secondary currents to the trip unit. 
 
 
At what current level does ...
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CWEA E/I Level 3 Questions and Answers 100% Correct
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CWEA E/I Level 3 Questions and Answers 100% CorrectCWEA E/I Level 3 Questions and Answers 100% Correct 
If the potential difference across the coil is low, the coil will: 
A-draw too much current 
B-become too hot 
C-Produce too much magnetic force 
D-not heat up - ANSWER-D-not heat up 
 
The NEC identifies environments that contain flammable vapors and gases as which class of hazardous location? 
A-Class I 
B-Class II 
C-Class III 
D-Class IV - ANSWER-A-Class I 
 
Which of the following reduce...
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