What is an arc flash - Study guides, Class notes & Summaries
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ETC SWE Questions and Answers | New One | Grade A+
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A bulkhead mounted disconnect for a workbench shall be located 48 to ____ inches above 
the deck. 
Ans: 54 
For naval applications, voltages greater than or equal to _____ volts are considered high 
voltage. 
Ans: 1000 
The resistance of the human body is typically around _____ ohms. 
Ans: 500 
_____ mA - shock is felt. 
Ans: 1 
_____ mA - a person may be unable to let go. 
Ans: 10 
_____ mA - shock may be fatal if it lasts for one second or more. 
Ans: 100 
PPE is required for energized work ...
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NFPA 70E FINAL ACTUAL EXAM 2024 WITH 100% CORRECT ANSWERS
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NFPA 70E FINAL ACTUAL EXAM 2024 WITH 100% CORRECT ANSWERS 
True or False: A mandatory rule can have exceptions. False True or False: Permissive rules are allowed but not required to be performed true What does NEC stand for? National Electrical Code What do chapters 1-4 of the NEC cover General electric installations What do chapters 5-7 of the NEC cover Special equipment and loctations What does chapter 8 of the NEC cover Communication systems What does chapter 9 of the NEC cover tables What is...
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NFPA70 Study Guide 2024 Questions and Answers Latest (2024 / 2025) (Verified Answers by Expert)
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NFPA70 Study Guide 2024 Questions and Answers Latest (2024 / 2025) (Verified Answers by Expert) What is an Arc Flash? 
ANS A short circuit that jumps through the air from oneexposed conductor to another. 
2. What makes an Ar Flash dangerous? 
ANS Temperatures of up to 35k' F, shrapnel,molten metal, chocks, shockwave (2k lbs/foot^2), 
soud (140 dB), burn injuries. 
3. Hazard/Risk Category 1 contains PPE requirements.What are they? 
ANS hard-hat, safety glasses, hearing protection, heavy duty lea...
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CWB Welding Inspection Test Questions With 100% Correct Answers Latest Update Graded A+
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CWB Welding Inspection Test Questions With 100% Correct Answers Latest Update Graded A+. Creating a safe working environment is strictly the responsibility of the 
employer? - Correct Answer-False, it the the joint responsibility of the employer and 
employee. 
WHMIS stands for: 
a) Workers Health Monitoring System 
b) Workplace Hazardous Materials Information System 
c) Workers for a Healthy Manufacturing Industry Society - Correct Answer-b) Workplace 
Hazardous Materials Information System 
Wh...
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NFPA70 Study Guide Questions with Correct Answers
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NFPA70 Study Guide Questions with Correct Answers 
What is an Arc Flash? - Answer-A short circuit that jumps through the air from one exposed conductor to another. 
 
What makes an Ar Flash dangerous? - Answer-Temperatures of up to 35k' F, shrapnel, molten metal, chocks, shockwave (2k lbs/foot^2), soud (140 dB), burn injuries. 
 
Hazard/Risk Category 1 contains PPE requirements. What are they? - Answer-hardhat, safety glasses, hearing protection, heavy duty leather gloves, leather work shoes. ...
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CWB Module 1 Questions With 100% Correct Answers Latest Update Graded A+
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CWB Module 1 Questions With 100% Correct Answers Latest Update Graded A+. True or False? Creating a safe working environment is strictly the responsibility of the 
employer? - Correct Answer-False, it the the joint responsibility of the employer and 
employee. 
WHMIS stands for: 
a) Workers Health Monitoring System 
b) Workplace Hazardous Materials Information System 
c) Workers for a Healthy Manufacturing Industry Society - Correct Answer-b) Workplace 
Hazardous Materials Information System 
Wh...
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NETA 2 Top Exam Questions and answers, rated A+
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NETA 2 Top Exam Questions and answers, rated A+ 
 
 
Under what considerations can tag out without lock out be permitted? - -***&If an energy isolating device is not capable of being locked 
 
For PV systems, a(n) _____ is a device that changes direct-current input to an alternating-current output. - -Inverter 
 
Identify the contact pictured above. (NC and NO separated by a node) - -Form C 
 
When applying personal protective grounds, which end is attached first? - -***&The equipment end 
 
An ...
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NFPA70 Study Guide 2024 with Complete Solutions
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What is an Arc Flash? - ANSWER-A short circuit that jumps through the air from one exposed conductor to another. 
 
What makes an Ar Flash dangerous? - ANSWER-Temperatures of up to 35k' F, shrapnel, molten metal, chocks, shockwave (2k lbs/foot^2), soud (140 dB), burn injuries. 
 
Hazard/Risk Category 1 contains PPE requirements. What are they? - ANSWER-hardhat, safety glasses, hearing protection, heavy duty leather gloves, leather work
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NFPA70 Study Guide Correct Questions & Answers(LATEST UPDATE 2024)
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What is an Arc Flash? - ANSWER A short circuit that jumps through the air from one exposed conductor to another. 
 
What makes an Ar Flash dangerous? - ANSWER Temperatures of up to 35k' F, shrapnel, molten metal, chocks, shockwave (2k lbs/foot^2), soud (140 dB), burn injuries. 
 
Hazard/Risk Category 1 contains PPE requirements. What are they? - ANSWER hardhat, safety glasses, hearing protection, heavy duty leather gloves, leather work shoes. 
 
What proper electrical PPE protect you from? - AN...
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IAAI CFI & NFPA 921 Final Exam Questions and Answers Latest Updated 2024/2025 | Graded A+
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IAAI CFI & NFPA 921 Final Exam Questions and Answers Latest Updated 2024/2025 | Graded A+. Rule of Nines" Medical concept, where major body areas are represented by increments of 
9% 
*For example the head equals 9% 
109F In hyperthermia, what core body temperature is generally fatal 
within minutes unless treated? 
4.0 to 10 w.c. The typical water column range for gas service lines 
4th Amendment The amendment concerning search and seizure 
*Remember "knocking" 
5th Amendment The amendment ...
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