b.Match the thickness of the extension cord to the thickness of the nail gun's power cord. 3 0 obj
Bob is asked to repair some overhead wiring, requiring the use a ladder.
Course 812 Module 7 OSHA Focus Four Hazards: Electrocution - OSHAcademy Electrical Hazards Electrical hazards can be found in nearly every roofing work site. The pole had not been inspected by the city and was not in compliance with code requirements (it was not grounded). The individual's perspiration-soaked clothing/body contacted bare exposed conductors on one of the cords, causing an electrocution. 0000002733 00000 n
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b.Yes, as it would be too expensive to install more permanent wiring and receptacles. Which of the following can be the result of electric shock? c.Three-prong plug d.A power tool, A GFCI is designed to: Is not painted over A Safety Electrical One Line Diagram should be used to _____ all sources of electrical energy.
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Of the following choices, which are frequent electrical hazards 1.Pain Noise, : ________ or heavy perspiration can cause electricity to take an unintended path. %
. 10,000 milliamps (10 amps) Cardiac arrest and severe burns occur. a.Yes, because the electrical shock caused the fall. A fault occurred, and with no grounding and no GFCI protection, the worker was electrocuted. endobj
4. As he removed the forms, he wrapped them with a length of cable called a choker, which was to be attached to a crane. [Flexible Cords] Cords that are not 3-wire type, not designed for hard-usage, or that have been modified, increase your risk of contacting electrical current. He may have dropped the extension cord at the site and not heard the connector break. Look for overhead power lines and buried power line indicators. 0000013716 00000 n
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OSHA-10: Avoiding Electrocution Hazards Flashcards | Quizlet Check your employee's electrical safety knowledge through an electrical safety quiz. A measure of the energy of motion of the particles in a substance is its _____. 0000005042 00000 n
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a.Your thumb. 1. The contact lasts for 5 seconds before someone is able to shut off the power. a.A small current These short objective type questions with answers are very important for competitive exams as well as Board exams. xref
Both the operator and the victim failed to notice that the boom had contacted a 2,400-volt overhead power line.
b+t6W' te+.W_{8u7Dt@1c. No GFCI's were used. [Flexible Cords and Power Tools] If there is no ground-fault protection, these can cause a ground-fault that sends current through the worker's body, resulting in electrical burns, explosions, fire, or death. A. wrap tape around the damaged spot to prevent electrical shocks. b.Not wearing insulating shoes or boots when she was handling electrical equipment 0000006152 00000 n
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Introduction To Osha Quiz Answers1) Which of the following activities PDF Electrical Safety - Occupational Safety and Health Administration Frames of non-electrically driven elevator cars to which electric conductors are attached. 1. Additionally, the ground prongs were missing from the two cords. A 20-year-old bricklayer standing on the work platform in contact with the main scaffold was electrocuted. Extension cords may become a trip hazard when: When selecting the right extension cord, a good rule of thumb is to match the thickness of the extension cord to the thickness of: Computers You discover the electrical cord on a drill has been damaged and some of the cord's insulation is missing. Short In Power Saw/Ungrounded Temporary Power Supply: On July 10, 1986, a 22-year-old carpenter was working at the construction site of large apartment complex, using a portable electric saw to construct the wooden framework of a laundry building. A co-worker disconnected the power cord to the saw, too late to save the victim. Electrical Safety Quiz Electrical safety is an important topic that you and your workers need to know about. View Best Practices with Power Lines Quiz OSHA 30.docx from OSHA 30 at Columbia Southern University. Explosion. 4. A) Identify; Castigate; C) Evaluate; D) Modify; 3. D. Have an ANSI sticker and an expiration date. The NEC C. Suggestions The victim was totally deaf in one ear and suffered diminished hearing in the other. d. heart attacks. HJ=S~68438IR/:VR C Y<7H*$F>ya)N1bTa+'OdzydV9QS]b{}(=q?pH,mt8{Ag ]wp?2N$AfnhBL!jV=6ho)5jA8H`Bkh{T[v\G%b|4| Eo*cF ]TBGjB[r6)WzCkQ;Bx(]*JG;&o0TV.P=s4Gs(&e~}j76,-6at$]r**-I!o66PqK.z
"*D OSHA Pros, LLC is an authorized provider of 360 Training, an OSHA-Accepted Provider, offering training and certification courses for NFPA 70E-Standard, and a.Yes, as it is a mobile engine testing station. Co-workers provided CPR, but were unable to revive the victim. 2 0 obj
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Explain the process that prevents the poles from steadily cooling off and the tropics from heating up over time. 2. What factors determine the severity of Dirk's injuries? The power switch on the welder was already in the "on" position, and the female end of the extension cord, which was spring loaded, had apparently been dropped and broken. ZR)!=w|; @uT C0? 0000004273 00000 n
Even when the power system is properly grounded, electrical equipment can instantly change from safe to hazardous because of extreme conditions and rough treatment. The ________ keeps the electricity on its intended path through the conductor. -Falls. The workers had removed their shirts and were sweating.
Electrical Safety Quiz - OSHA.net OSHA 10 - Exit Routes, Emergency Action Plans, The Analysis and Design of Linear Circuits, Albert J. Rosa, Gregory J. Toussaint, Roland E. Thomas. d.50,000 volts. (3,2,1), (5,4,3). 0000010603 00000 n
b. Electricity for power tools was supplied from an exterior 120-volt, grounded AC receptacle located at the back of the residence. Extension cords are used to: Both could have prevented the accident from occuring. endobj
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OSHA 10 - Electrical Flashcards | Quizlet 12 months C. 6 months D. Never Q23. 1. Is split 3.Something that causes current to flow through the . 0000001896 00000 n
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Is not broken, Question Text: Electrical tools should be grounded with a(n)________. Attaching ungrounded, two-prong adapter plugs to three-prong cords and tools. Suppose you could convert the 525525525 Calories in the cheeseburger you ate for lunch into mechanical energy with 100%100 \%100% efficiency and you throw a 0.145kg0.145~\mathrm{kg}0.145kg baseball with the energy contained in the cheeseburger. 0000007741 00000 n
d.The body of the power tool. 2.Is working properly The router's 3-wire power cord was spliced to a 2-wire cord and plug set which was not rated for hard service. OSHA 10-Hour Safety Course - Electrical Safety Page 5 of 5 Use the three-stage safety model to stay safe: recognize, evaluate, and control hazards. Before work began, the company safety director made sure that insulated line hoses were placed over sections of the the power line near the jobsite and that a safety clearance zone was marked off for arriving cement trucks. b) Staples 0000009628 00000 n
specifically addresses electrical protective devices. Find the energy required to raise an electron from the n=4n=4n=4 state to the n=5n=5n=5 state in Li2+\mathrm{Li}^{2+}Li2+ and in hydrogen atom. When used on the moon? 0000001731 00000 n
Underground electrical hazards are: A. d. No, because an extension cord would not provide enough power. It is important to note that NFPA 70E is a . 2.Using extension cords or electrical tools properly. 2.Loss of muscle control 0000012944 00000 n
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NFPA 70E: Standard for Electrical Safety in the Workplace Occupational Safety & Health Administration, Death Due to Lack of Ground-Fault Protection, Deaths Due to Missing or Discontinuous Path to Ground, Deaths Due to Equipment Not Used in Manner Prescribed, Deaths Due to Improper Use of Extension and Flexible Cords, Occupational Safety and Health Administration, Outreach Training Program (10- and 30-hour Cards), OSHA Training Institute Education Centers, Improper use of extension and flexible cords, Electrical Safety: Safety and Health for Electrical Trades Student Manual, ground-fault circuit interrupters (GFCI)s, assured equipment grounding conductor program (AEGCP), Electricity and Tree Care Work A Deadly Combination, Working Safely Around Downed Electrical Wires, Electrical Safety Hazards of Overloading Cable Trays, Small Business Safety and Health Handbook, Fire Fighters Exposed to Electrical Hazards During Wildland Fire Operations, Fatality Assessment and Control Evaluation (FACE) Program, NIOSH Face Reports Indexed by Industry or Cause of Fatality, Worker Deaths by Electrocution: A Summary of Surveillance Findings and Investigative Case Reports, Severe Storm and Flood Recovery Assistance.
Electrical Hazards - SSOE Group If the electrical conductors become exposed, there is a danger of shocks, burns, or fire.
Select the correct answer and then click DONE. As he is working on the wiring, he receives an electrical shock that knocks him backward and causes him to fall off the ladder. Using modified cords or tools, e.g., removing ground prongs, face plates, insulation, etc. 2.Yes, because he is using a portable power tool. The ground wire was not attached on the male end of the cord's plug. 2. <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 792 612] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>>
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a.Electricity 3.Loss of eyesight Electricity must follow an uninterrupted loop from the power source to the equipment and back to the power source or ________. b.811 Burns. 0000017336 00000 n
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3.The length of time the body is in contact with electricity Some of the causes of these are live wire s that may be lying around, overloaded circuits, explosions that are caused by flammable objects, etc. An examination revealed that the spring, cover plate, and part of the melamine casing were missing from the face of the female connector (the spring and some melamine fragments were found at the accident site). 0000007694 00000 n
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As the victim climbed down a makeshift ladder, he shifted the saw from his right hand to his left, and was shocked. (D) None of the above. When does electricity become hazardous to humans? Carly needs to use an extension cord with her corded nail gun. Power was supplied through two extension cords from a nearby residence. Dust To avoid injury or death, you must understand and recognize hazards. Quiz: Electrical Hazards. Which of the following are insulators of electricity? 0000018681 00000 n
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4.Flex If the insulation on the tool's power cord is damaged and you touch this area while grounded, the electricity will ________. Potential hazards of electricity are preventable if you do which of the following listed below?
Electrical Safety Multiple Choice Questions(MCQs) & Answers - gkseries Ajay needs to use a dewatering pump to drain standing water on a construction site. -Rubber. The presence of ______ can turn you, your equipment, or insulators like wood, into conductors. Fire c. No, because the electricity is needed on a long-term basis. c) Age b.Electrical tools %PDF-1.4
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OSHA 30 Construction Final Test Answer Key - Studylib Remove from service any equipment with frayed cords, missing ground prongs, cracked tool casings, etc. 2.Something to transport the electrical current -- A conductor.
OSHA 30 - Quiz 3 - Electrocution Hazards Flashcards | Quizlet The modification of the plug was not an intended use or prescribed by the manufacturer. 4. A worker was operating a " electric chisel when an electrical fault occurred in the casing of the tool, causing him to be fatally electrocuted. As a result, the ground prong of the welder plug did not insert into the ground terminal of the cord, so that as soon as a connection was made, the outside metal case of the welder became energized, electrocuting the victim. 0000000816 00000 n
1.Damaged cover or insulation 1,[-c|"&u[Fu>wjte8j:xRk )"m_!6awT J,byp?fRBf?p|b3/Um\7"|+@5vvWAa5J^y*q,l b)Ftt4 :4,-J`! 1.Using a fiberglass ladder when the possibility exists for contact with electricity. Continually audit cords on-site. What is the primary purpose of properly grounding equipment? Which of the following can be caused by exposure to an arc flash? 1452 0 obj
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Question 4: When a worker receives an electric shock, first aid must start within ___________ minutes. 0000010155 00000 n
According to NFPA 70E, job briefings must be held for those employees that will be working on or near live parts operating at ______ or more. Select the correct answer and then click DONE. hb``b``=p0X8n0lY0L#rK[V26h* @0H!XDl+!&FfUfo`h6l Since the outlet at the adjacent property had no socket for a ground prong, the extension cords were plugged into the outlet using an adapter, but the ground wire of the adapter was not grounded. %PDF-1.5
Which of these can be used as insulating live-line tools for electrical protection. Contact utilities for buried power line locations. No Ground-Fault Circuit Interrupters (GFCIs): A journeyman HVAC worker was installing metal duct work using a double-insulated drill connected to a drop light cord. Select the correct answer and then click DONE.
Electrical - Overview | Occupational Safety and Health Administration OSHA: Air Monitoring & Medical Surveillance, 5 ANO - RETOMANDO ARTIGO, SUBSTANTIVO E ADJE. Quiz Question 4: Which is a preventive measure to prevent hazards while working with power lines? Quiz Question 3: Power cords can be damaged by which of the following? Question 3: Employers are not required to enforce lock out/tag out practices in the workplaces. D. Communicate the hazard to the crew and subs, use signs and bar E. Both C and D Q22. 5. Improper Use of Extension and Flexible Cords. Electrical safety quiz answers are given below. OSHA 29 CFR 1910, Subpart P . 0000028595 00000 n
OSHA 30 Module 6: Personal Protective Equipme, OSHA 30 - Module 16: Recordkeeping & Reporting, OSHA 30 - Module 18: Safety and Health Progra, OSHA 30 - Module 11: Welding, Cutting and Bra, CRJ 200 Limitations (Official-ish) - MODDED (, SERE 100.2 Level A SERE (J3TA-US1329) (Civili, Fundamentals of Engineering Economic Analysis, David Besanko, Mark Shanley, Scott Schaefer, E. Russell Johnston, Ferdinand Beer, Phillip Cornwell. 3.Loose nuts b.burns. 0000002557 00000 n
The laborer, who was wearing leather gloves, received an electric shock and dropped the wire reinforcement, which fell across the power line and simultaneously contacted the metal rail of the scaffold, energizing the entire scaffold. The factors that determine the severity of an electrical injury include: Using multi-receptacle boxes designed to be. Question 2: Which of the following are ways employers must protect their employees on the workplace? %PDF-1.4
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4.Running through doorways. The source of the shocks -- the saw -- was not replaced. Explain the purpose and use of the MyPlate symbol. Using circuit breakers or fuses with the wrong rating for over-current protection, e.g. Take any defective equipment out of service. Outlets Select the choices that accurately define the common electrical term. H\n@0vj@/R#tnvihavopnS1>v8Z6zLpOCRU.O^6pImjgk{xv6%zp\,{|7_WqNfhu09$U?kW}: }y}]OIL5~W*8D~%W-yww;sORYbfspA.%YJV
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Fatal electrocution is the main risk, but burns and falls from elevations are also hazards. 2.The person's physical condition 1.The humidity of the environment