[29 CFR 1926.416(a)(1)]. a.Standing in water xb```VVF A10p,``Pp`hhdpn``r`L:[ I,aZ4Knj21 `ny; Ge7t@OrMx)"cx&e:[~J%aUJ\*t NFPA 70E: Standard for Electrical Safety in the Workplace (b) The same reaction can also be classified as a redox reaction. 3.Loose nuts A) 120v . Quiz Question 3: Power cords can be damaged by which of the following? 3.No, because he will not be touching any grounded material when using the tool. Apparently, his hand contracted and he was "locked" to the saw. <> . Of the following choices, which are frequent electrical hazards If the insulation on the tool's power cord is damaged and you touch this area while grounded, the electricity will ________. b. Deductive objects 0000005716 00000 n The victim was totally deaf in one ear and suffered diminished hearing in the other. Freeze 4.The amount of current, An electrical burn may affect: 1 0 obj SCENARIO: You encounter a co-worker on a residential remodeling job. 0000000816 00000 n 1.Missing or broken path to ground. -If current passes through the body near the heart or brain. 2 0 obj There were no eyewitnesses to the accident, but evidence suggests that while the victim was handling the damaged and energized extension cord, he provided a "path to ground" and was electrocuted. endobj The individual's perspiration-soaked clothing/body contacted bare exposed conductors on one of the cords, causing an electrocution. -Grounding= a conductive connection to the earth which acts as a protective measure. a.Conductive objects Which of the following can be the result of electric shock? 3.Clear Ground all power supply systems, electrical circuits, and electrical equipment. When an electric shock occurs, your muscles may: In which of the following workplace situations are you at risk for coming into contact with live electrical . If the power supply to the electrical equipment at your site is not grounded or the path has been broken, fault current may travel through a worker's body, causing electrical burns or death. The following hazards are the most frequent causes of electrical injuries Contact with Power Lines, Lack of Ground-fault Protection, Path to Ground Missing or Discontinuous, Equipment Not Used in Manner Prescribed, and Improper Use of Extension and Flexible Cords. 0000011060 00000 n OSHA Safety and Health Topics Page. D 600v. 21 Examples Of Electrical Hazards - HSEWatch 0000007427 00000 n Match the length from job to outlet. OSHA CONSTRUCTION FINAL EXAM Question and Answer Part 10. ly/homeo3b700 Which of the following is a resource within the. OSHA 30 - Module 12: Electrical Safety Flashcards | Quizlet A co-worker disconnected the power cord to the saw, too late to save the victim. 0000057373 00000 n Wearing a baseball cap The \rule{1cm}{1pt} artery carries deoxygenated blood from the heart to the lungs. Select the choices that accurately define the common electrical term. Should he use an extension cord to power it? Use only cords, connection devices, and fittings that are equipped with strain relief. stream c) Establish and enact an assured equipment grounding conductor program (AEGCP) hb``b``=p0X8n0lY0L#rK[V26h* @0H!XDl+!&FfUfo`h6l [, Use all equipment according to the manufacturer's instructions. The ground wire was not attached on the male end of the cord's plug. 0000420277 00000 n 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. 0000419562 00000 n 0000001646 00000 n <> Both the operator and the victim failed to notice that the boom had contacted a 2,400-volt overhead power line. Introduction To Osha Quiz Answers1) Which of the following activities 0000004921 00000 n NFPA 70E defines those special circumstances and sets rigid electrical safety limits on voltage exposures, work zone boundary requirements and necessary personal protective equipment (PPE). b.Yes, as it would be too expensive to install more permanent wiring and receptacles. 0000008392 00000 n It's okay to use extension cords with worn insulation, as . Electrical Safety Quiz Electrical safety is an important topic that you and your workers need to know about. PDF SAFETY HAZARDS: These are the most PHYSICAL HAZARDS: CHEMICAL HAZARDS Whether the hazard is posed by worn or damaged power tools or cords, improperly grounded tools or equipment, or the presence of standing water, it is the responsibility of the contractor to make sure the tools and equipment 0000108653 00000 n Visually inspect all electrical equipment before use. 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. Extension cords are used to: 3.Tears 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. Select the correct answer and then click DONE. Used across walkways. c.falls. Additional minimum clearance distance is required for power lines carrying over ________. 1.A source of electrical current to flow. The modification of the plug was not an intended use or prescribed by the manufacturer. Using circuit breakers or fuses with the wrong rating for over-current protection, e.g. As the victim climbed down a makeshift ladder, he shifted the saw from his right hand to his left, and was shocked. If you are touching any grounded material while using a power tool 4. Examples Of Electrical Hazards. c.Absorb any water around the area <> Protection is lost because it will not trip when the system's load has been exceeded. % The presence of ______ can turn you, your equipment, or insulators like wood, into conductors. Quiz Question 4: Which is a preventive measure to prevent hazards while working with power lines? 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. 0000005042 00000 n c. Match the color of the tool to the color of the extension cord. Be sure equipment that has been shop fabricated or altered is in compliance. d.The body of the power tool. If the electrical conductors become exposed, there is a danger of shocks, burns, or fire. Electrical Hazards - SSOE Group d/E \VZvl$Y#nH,EIm /\"BQ>Rkl6xZWtAgfs 0000002195 00000 n Select the correct answer and then click DONE. When the energized conductor made contact with the ladder, the path to ground included the worker's body, resulting in death. 0000007694 00000 n Select the correct answer and then click DONE. 0000013716 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. trailer <<11AC4BACEBCA4B32A885F1120BD3A307>]>> startxref 0 %%EOF 153 0 obj <>stream Other protective measures include guarding or insulating the lines. As he is working on the wiring, he receives an electrical shock that knocks him backward and causes him to fall off the ladder. Intentionally creating a low-resistance path that connects to the earth. De-energize and ground lines when working near them. xref OSHA 29 CFR 1910, Subpart P . Quiz Question 10: Ground-fault circuit interrupters must be used for all of the following except? If a worker has been retaliated against for using their rights, they To verify an electrically safe work condition, all these conditions should be confirmed EXCEPT: Effective training of employees includes all of the following EXCEPT: How to operate power tools in wet conditions. Visually inspect all electrical equipment before use. a.20,000 volts Electrical hazards expose workers to the following: Burns: Three types; electrical, arc flash, or thermal contact. Becoming part of the circuit exposes you to ________, the most dangerous electrical hazard. 4.Organs, The presence of ________ can turn you, your equipment, or insulators like wood into conductors. 0000002876 00000 n Ajay needs to use a dewatering pump to drain standing water on a construction site. 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. Select the correct answer and then click DONE. h|UnH}+i-. OSHA 10 General Industry Test Answer Key WALKING. 10,000 milliamps (10 amps) Cardiac arrest and severe burns occur. When inspecting extension cords, look for: 0000005632 00000 n While attempting to unplug the compressor from the extension cord, the employee was fatally shocked. Latoya is using a mixing motor to mix pool chemicals in a plastic drum. 0000001814 00000 n 2.Complete 3 OSHA requires the testing of a volt meter after a voltage test on voltage above_____. d) All of the above. 2.Using extension cords or electrical tools properly. 0000013999 00000 n Hazards are created when cords, cord connectors, receptacles, and cord- and plug connected equipment are improperly used and maintained. Question 4: When a worker receives an electric shock, first aid must start within ___________ minutes. OSHA 10 General Industry Topic Exams Answer Key TOPIC EXAM 1: INTRO TO OSHA 1. High humidity Quiz Question 1: Which of the following is not a category of electrical burns? 4.Dirt build-up, Use only approved and authorized power tools in areas where the following hazards may be present: 0000007116 00000 n 3. Ground metal parts of the following non-electrical equipment, as specified by the OSHA standard [, Frames and tracks of electrically operated. 3.ack of ground fault protection. When does electricity become hazardous to humans? trailer <]/Prev 500768/XRefStm 1495>> startxref 0 %%EOF 222 0 obj <>stream lb MKS 2.The person's physical condition 0000000816 00000 n _.9u'2G_0 Ue]e"x5|Y If electrical equipment is used in ways for which it is not designed, you can no longer depend on safety features built in by the manufacturer. 1. 0000000016 00000 n d. heart attacks. ZR)!=w|; @uT C0? 1,[-c|"&u[Fu>wjte8j:xRk )"m_!6awT J,byp?fRBf?p|b3/Um\7"|+@5vvWAa5J^y*q,l b)Ftt4 :4,-J`! 3.Needs to be reset 2. c.Three-prong plug 4 0 obj %PDF-1.4 % b.The tool's power cord. 0000010155 00000 n 0000006893 00000 n (a) Describe the reaction between the hydride ion and water in terms of a Bronsted acid-base reaction. Short Confined spaces Machinery-related hazards (lockout/tagout, boiler safety, forklifts, etc.) The first worker knocked the auger off the victim, but saw that the electric cord was wrapped around the victim's thigh. View Answer Answer: 600v 4 . Draw a line from the item on the left that corresponds to the match on the right. BE SAFE! (D) None of the above. d.50,000 volts. -Glass. View Best Practices with Power Lines Quiz OSHA 30.docx from OSHA 30 at Columbia Southern University. What is the minimum clearance distance you must maintain from the power lines? 0000003413 00000 n 4.Good condition of moveable parts, Items that could encourage overheating and cause tools to malfunction or start a fire include: The insulation on the extension cord was cut through and exposed bare, energized conductors which made contact with the ladder. 0000004208 00000 n a.related to muscle damage. This caused him to fall from the ladder and land in a puddle of water, still holding the saw. b.10 feet Fatal electrocution is the main risk, but burns and falls from elevations are also hazards. c.A measurement of electricity 2 0 obj 4.Cardiac arrest As he removed the forms, he wrapped them with a length of cable called a choker, which was to be attached to a crane. The source of the shocks -- the saw -- was not replaced. 4.Must be replaced, Always use a GFCI: 4.Damaged cover or insulation, When using electric-powered hand tools, do not overload:
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