0000001495 00000 n Visually inspect all electrical equipment before use. b.Ground Fault Critical Interrupter Dirk, a 28-year-old mechanic, is performing maintenance on a piece of equipment when he is shocked. Explain the process that prevents the poles from steadily cooling off and the tropics from heating up over time. 0 Question 1: Which of the following is a danger of electricity? Using tools and equipment that can contact power lines increases the risk. 4 0 obj endobj Co-workers provided CPR, but were unable to revive the victim. <> Among all of the safety measures that can and should be used to prevent electrical shock, which one is the most essential? 2 0 obj As he began to pull away, the crew supervisor yelled to him, asking if the crew could use his water hose to wash out their cement bucket suspended from the crane. D. Communicate the hazard to the crew and subs, use signs and bar E. Both C and D Q22. The length of time the body is in the circuit, in contact with electricity - Factor determining the severity of an electrical . 1452 0 obj <> endobj endobj DHPP0MHLHIPPXc f2LXL"dgJ:@ ys`llr-shH,Y@Z 23J0a_TXD;X,;&0i,i&f&T8h R/ v`,l. 440!2D9482q={LPXs +( endstream endobj 129 0 obj <> endobj 130 0 obj <> endobj 131 0 obj <>/ColorSpace<>/Font<>/ProcSet[/PDF/Text/ImageB]/ExtGState<>>> endobj 132 0 obj <> endobj 133 0 obj <> endobj 134 0 obj <> endobj 135 0 obj <>stream Others, such as office workers and sales people, work with electricity indirectly and may also be exposed to electrical hazards. Electricity must follow an uninterrupted loop from the power source to the equipment and back to the power source or ________. If a defective power tool gives you an electric shock, how might your muscles react? The normal wear and tear on extension and flexible cords at your site can loosen or expose wires, creating hazardous conditions. After the wall was poured, one driver cleaned the loading chute of his cement truck with a water hose mounted on the truck. 0000017163 00000 n 2.Loose bolts Looking for NFPA 70E Certification? 0000003771 00000 n d.Metal, Over half of all deaths caused by electricity result from contact with ________. Potential hazards of electricity are preventable if you: Electricity must always travel in a(n) ________, ________ circuit. As she is adding in the chemicals, her hand touches the motor and it becomes energized. a.Conductive objects <> A. wrap tape around the damaged spot to prevent electrical shocks. b.Metal 2.Skin a.Extension cords 2. 0000004686 00000 n 0000022637 00000 n Potential hazards of electricity are preventable if you do which of the following listed below? Supply power for tools or equipment on a long-term basis. An OSHA inspection revealed that the tool's original power cord had been replaced with a flat cord, which was not designated for hard service, and that strain relief was not provided at the point where the cord entered the tool. Damaged Extension Cord Leaves Arc Welder Ungrounded: A 29-year-old welder attempted to connect a portable arc welder to an electrical outlet using an extension cord. Electrical current travels through insulated ________. 0000024814 00000 n Select the correct answer and then click DONE. 4 0 obj Frequently inspect electrical systems to insure that the path to ground is continuous. [Power Tools]. Is split Question 3: Employers are not required to enforce lock out/tag out practices in the workplaces. The factors that determine the severity of an electrical injury include: <> Electrical Hazards Electrical hazards can be found in nearly every roofing work site. The victim was totally deaf in one ear and suffered diminished hearing in the other. <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> specifically addresses electrical protective devices. (D) None of the above. Question 1: Which of these is a type of Ground Fault Circuit Adapter? uVNSF!UTRQ91uR,6@hCH}]GAlaPh)NeT$iQ89S9|?4wahU ltz9 PH[$I&VX9WG%K~1{u8M:D"+HLEy 3@NR^z!rB^?RyOj;'Lof. Unless you know otherwise, assume that overhead lines are energized. c.Touching the motor 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. List the four main types of electrical injuries, Using the illustration, select the answer that matches the picture, Identify the illustration by selecting the appropriate answer. -Voltage= a measure of electrical force. The first worker knocked the auger off the victim, but saw that the electric cord was wrapped around the victim's thigh. ( What is the primary purpose of properly grounding equipment? a.Yes, as it is a mobile engine testing station. 2.Grease 0000006866 00000 n Which of these can be used as insulating live-line tools for electrical protection. 0000005050 00000 n 0000420564 00000 n 3.Loss of eyesight The presence of ______ can turn you, your equipment, or insulators like wood, into conductors. 2.Using an aluminum ladder when the possibility exists for contact with electricity. Overhead and buried power lines at your site are especially hazardous because they carry extremely high voltage. 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. 3.Clear a.Ground Fault Circuit Insulator Flexible Cord Not 3-Wire, Hard Service Variety: A worker received a fatal shock when he was cutting drywall with a metal casing router. 0000007116 00000 n A) Identify; Castigate; C) Evaluate; D) Modify; 3. 0000414648 00000 n B. Equipment used in manner prescribed. b.Electrical tools The pole had not been inspected by the city and was not in compliance with code requirements (it was not grounded). 4. All of the following are essential considerations for the safe use of cords and wiring EXCEPT: Which one of these methods is not acceptable for putting out an electrical fire? 2. What are the 4 main type of hazards? [Ultimate Guide!] Water 4.No, because he does not need to use an extension cord. b.10 feet 0000005632 00000 n Death. A laborer carried a piece of wire reinforcement (10 feet long by 8 inches wide) along the top section of the scaffold and contacted the power line with it. c.911 The insulation on the extension cord was cut through and exposed bare, energized conductors which made contact with the ladder. Which of the following are insulators of electricity? 2. Additionally, the ground prongs were missing from the two cords. (See NFPA 70E-2021 Article 130 and OSHA subpart S part 1910.333 (a) (1)- (2) and (c) for complete details.) x_HSqnwmky54YLzeStJi# TZObFT*.#BQF/Q Frames of non-electrically driven elevator cars to which electric conductors are attached. Test your knowledge with our electrical safety quiz below. Fatal electrocution is the main risk, but burns and falls from elevations are also hazards. 4.Running through doorways. Electricity becomes hazardous when it takes an unintended path to complete the ________. [, Use all equipment according to the manufacturer's instructions. (E) a, b, and c. 2. 1.Cuts d. 20 feet. 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. What three things must be present for a current to flow through a conductor. 1.Fingernails 1. endobj The plug of the compressor and an extension cord had been modified to fit a wall outlet for a common household clothes dryer (220 V). 0000012360 00000 n Question 3: A/an ____________ is a unit of measurement for electrical resistance. I;C`_;LV'd,|#H--e`( ')'RpAgA7O`?%68SB Use the terms (freezing, gas, liquid, physical changes, solubility, solution, temperature, volume) to complete the sentence. Is not broken, Question Text: Electrical tools should be grounded with a(n)________. Follow manufacturers' recommended testing procedure to insure GFCI is working correctly. <>>> Select the choices that accurately define the common electrical term. Electrocution. This may damage your equipment and cause employee injuries. b) By supplying GFCIs, or ground-fault circuit interrupters Additionally, the ground prong was missing and there was no GFCI protection. d. Match the outlet prongs to the extension cord. OSHA Safety and Health Topics Page. Lx*jWP# /c2)|]NXqAx>=~'[ qnde>9!.,T2 :hw5 #OaPxkx=y7]J-yv*'H$jmVCq$ sx:R2$9SY+D!!LJ:n+.\#Hu~2VI O? [29 CFR 1926.416(a)(1)]. [. 0000002150 00000 n Best Practices with Power Lines 1. OSHA: Air Monitoring & Medical Surveillance, 5 ANO - RETOMANDO ARTIGO, SUBSTANTIVO E ADJE. 0000018681 00000 n d/E \VZvl$Y#nH,EIm /\"BQ>Rkl6xZWtAgfs Select the correct answer and then click DONE. 0000028595 00000 n b) Staples 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. As he is working on the wiring, he receives an electrical shock that knocks him backward and causes him to fall off the ladder. q>NmnLNmb$"Iyx1bD9.~Ll. Identify the oxidizing and reducing agents. a. OSHA 10 - Exit Routes, Emergency Action Plans, The Analysis and Design of Linear Circuits, Albert J. Rosa, Gregory J. Toussaint, Roland E. Thomas. OSHA will keep all identities confidential. 0000421920 00000 n d.Adapter, What is a GFCI? . Apparently, his hand contracted and he was "locked" to the saw. 2. [Flexible Cords and Power Tools] If there is no ground-fault protection, these can cause a ground-fault that sends current through the worker's body, resulting in electrical burns, explosions, fire, or death. d) All of the above. b.Not wearing insulating shoes or boots when she was handling electrical equipment c.Guaranteed Fault Circuit Interrupter 2.Flooding Electrocution was the second leading cause of worker deaths on construction sites in the United States in 2011. Which group would be more accurate when used in an accelerating spaceship? b.Rod Since the outlet at the adjacent property had no socket for a ground prong, the extension cords were plugged into the outlet using an adapter, but the ground wire of the adapter was not grounded. 1.When you are using electricity near water b.811 1.Is faulty :$#k9BPnZ{Qqe/reKy,'ZlB# Know glove capability VS hazard anticipated (exposure to chemicals, heat, or flames). One handle has a deadman's switch. 0000002385 00000 n 0000003900 00000 n c.40,000 volts 2. Do not remove ground prongs from cord- and plug-connected equipment or extension cords. 0000004273 00000 n 128 0 obj <> endobj xref 128 26 0000000016 00000 n 2.Loose screws Select the correct answer and then click DONE. eTool : Construction - Electrical Incidents | Occupational Safety and Remove from service any equipment with frayed cords, missing ground prongs, cracked tool casings, etc. c.Wood Use non-conductive wood or fiberglass ladders when working near power lines. b.30,000 volts d.50,000 volts. This standard also includes safe work practices for employees performing other work activities that can expose them to electrical hazards as well as safe work practices for the following: (1) Installation of conductors and equipment that connect to the supply of electricity (2) Installations used by the electric utility, such as office . b. In addition to contact with power lines, the top electrical hazards include: 4.The amount of current, An electrical burn may affect: 3 0 obj Other protective measures include guarding or insulating the lines. % BIOLOGICAL HAZARDS: term effects) and strain (longAssociated with working with animals, people, or infectious plant materials. It is important to note that NFPA 70E is a . 2.Is working properly Select the correct answer and then click DONE. a.Yes, because the electrical shock caused the fall. D. near other electrical equipment. PDF OSHA Safety - Electrical Safety - Red Vector Besides personal bodily injury, what other electrical hazards can be found in the workplace? This is action is also known as creating or completing an electrical circuit. Isolating, Power lines may be located underground. )KL3C?e%Y92$,]^)kmR/!8\ JF N'bT\U1+tc+&:'ZuGi!UeUrE [?CrU.&|#@Ed,=2UF]r/n/{v-;v>%/~;[*AxBU,-#!uyFGR,Wv[ cOzObnZfI4ob:pf "~ .iBE@mOs:Os5U9cnU` Vd"F'4Bm?>}hyRQyrX0U026h7#L'. 12 months C. 6 months D. Never Q23. Noise, : ________ or heavy perspiration can cause electricity to take an unintended path. Improper Use of Extension and Flexible Cords. (A) Shotgun sticks. 21 Examples Of Electrical Hazards - HSEWatch Power was supplied through two extension cords from a nearby residence. Adapter For 3-Prong Cord Not Grounded To Outlet: On May 27, 1986, two workers were using a 110-volt auger to install tie-down rods for a manufactured home. 4.On equipment that must run unattended for long periods of time, Manufacturing equipment may be grounded using a wire connected to a rod driven into the earth. b.Yes, as it would be too expensive to install more permanent wiring and receptacles. trailer <<11AC4BACEBCA4B32A885F1120BD3A307>]>> startxref 0 %%EOF 153 0 obj <>stream 1.Is firmly connected Burns. -Severe skin burns. 4,600. Electricity to operate portable power tools was supplied by a temporary service pole 50 feet away. 3.No, because he will not be touching any grounded material when using the tool. endobj Cardiac arrest or death - A result of electrical shock. Post warning signs. 3.Cramp c. No, because the electricity is needed on a long-term basis. _5JKy. s\A0W+GA?~G?nnnnnnnnnnnn>>{Wrbrbrbrb sbZef'N(:QvD":1vbo7o7o7W*_bTs6ivyU,;dFW` { endstream endobj 191 0 obj [/ICCBased 211 0 R] endobj 192 0 obj <> endobj 193 0 obj <> endobj 194 0 obj <> endobj 195 0 obj <> endobj 196 0 obj <>stream Using multi-receptacle boxes designed to be. H. 3. Metal partitions, grill work, and similar metal enclosures around equipment of over 1kV between conductors. 0000004444 00000 n @*@;z}IAH@3MsgU1Dnf@agLahpCn@&b|-^;b0k*!3VYy,jy%( Z%|\Jg"dRp-Wbz3QJS%k9p_WtZ A. indoors. Electrical hazards expose workers to the following: Burns: Three types; electrical, arc flash, or thermal contact. b.Shut off power within five minutes of the imbalance Hazards are created when cords, cord connectors, receptacles, and cord- and plug connected equipment are improperly used and maintained. Be sure equipment that has been shop fabricated or altered is in compliance. 0000420277 00000 n 0000011060 00000 n Select the correct answer and then click DONE. High humidity As the victim climbed down a makeshift ladder, he shifted the saw from his right hand to his left, and was shocked. 1 0 obj 0000013716 00000 n Two of the extension cords had no ground prongs, and some of them were repaired with electrical tape. 0000422244 00000 n a. Ground metal parts of the following non-electrical equipment, as specified by the OSHA standard [29 CFR 1926.404(f)(7)(v)]: Frames and tracks of electrically operated cranes. *Effects are for voltages less than about 600 volts. A fan connected to a 120-volt electrical system via an extension cord provided ventilation for a worker performing a chipping operation from an aluminum stepladder. using a 30-amp breaker in a system with 15- or 20-amp receptacles. 0000002557 00000 n Use only equipment that is approved to meet OSHA standards. 3 OSHA requires the testing of a volt meter after a voltage test on voltage above_____. Determine duration, frequency, degree of exposure to hazards and physical stress. -If current passes through the body near the heart or brain. 3.Something that causes current to flow through the . A worker was operating a " electric chisel when an electrical fault occurred in the casing of the tool, causing him to be fatally electrocuted. The auger has a one-quarter horsepower motor encased in a metal housing with two handles. Many workers are unaware of the potential electrical hazards present in their work environment, which makes them more vulnerable to the danger of electrocution. Extension cords had poor splices, no grounds, and reversed polarity. Intentionally creating a low-resistance path that connects to the earth. 30 days B. (3,2,1), (5,4,3). 1. (B) Switch sticks. stream a.Two-prong plug Using circuit breakers or fuses with the wrong rating for over-current protection, e.g. ZR)!=w|; @uT C0? Lockout/tagout procedures. 4. 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. 4.Must be replaced, Always use a GFCI: The victim was part of a crew that was constructing a concrete wall. 2. The auger then fell across the other worker, the 24-year-old victim. 4. %PDF-1.4 % When he grasped the handle of the bucket to pull it down, the crane cable came into contact with the overhead line. Which of the following can be the result of electric shock? View Best Practices with Power Lines Quiz OSHA 30.docx from OSHA 30 at Columbia Southern University. 1.A source of electrical current to flow. Quiz Question 4: Which is a preventive measure to prevent hazards while working with power lines? OSHA 30 - Module 12: Electrical Safety Flashcards | Quizlet c) Establish and enact an assured equipment grounding conductor program (AEGCP) Underground electrical hazards are: A. The workers administered CPR to the victim, but to no avail. Only after a rescue squad arrived about 4 minutes later did anyone realize that the crane was in contact with a power line -- all those present had assumed that the victim had suffered a heart attack. 0000001731 00000 n Fire 0000007427 00000 n c.Absorb any water around the area x=k6S *ywvkDyb_w rg&@Q5/^4O_~w/]7[xqs7Zt?LK-,>W\W`Mb?n8\.vpOJA7~5R%.oJd|Bbv7biQH%^~C=m3_ov{8] }C.Se={o7H[w@/^j BgXRC/O/eiLHiN\4~7x=^J@|]zu"x]lQ-+.xF=oY +B?jSl|(agF_].+UH\!/;AU .cG!h@42 iqnkZtdc#^)AX96(wFZ,RP{[\j\aJgc) diV;BNzZge(}=0Pj Qp@"]yOnNw89 3.Maintaining a safe distance of at least 10 feet from all overhead power lines. Outlets The NEC C. Suggestions 0000004921 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. hbb``b``3N0  endstream endobj 183 0 obj <>/Metadata 28 0 R/Names 184 0 R/Outlines 23 0 R/Pages 27 0 R/StructTreeRoot 30 0 R/Type/Catalog/ViewerPreferences<>>> endobj 184 0 obj <> endobj 185 0 obj <>/ExtGState<>/Font<>/ProcSet[/PDF/Text]/Properties<>>>/Rotate 0/StructParents 0/TrimBox[0.0 0.0 612.0 792.0]/Type/Page>> endobj 186 0 obj <> endobj 187 0 obj <> endobj 188 0 obj <>stream trailer a.Supply power for tools or equipment on a temporary or short-term basis. a.Standing in water c.Three-prong plug The victim collapsed into the lake and sank 4-1/2 feet to the bottom. What type of burns are the result of current flowing through and exiting the body? Used across walkways. a.20,000 volts Carly needs to use an extension cord with her corded nail gun. 2.Something to transport the electrical current -- A conductor. The ________ keeps the electricity on its intended path through the conductor. 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. The floor is covered in water and she is barefoot. b. Question 1: Each year, approximately __________ workers suffer from electricity related injuries. d.The body of the power tool. OSHA: Common Electrical Hazards Flashcards | Quizlet Best practices with power lines include: OSHA 10 General Industry Test Answer Key WALKING. 2.Complete Provides information about the hazards that electrical workers may experience as a part of their jobs. When current travels through your body - Definition of electric shock. b.A fast-acting switch monitoring current flow 3.Needs to be reset OSHA-10: Avoiding Electrocution Hazards Flashcards | Quizlet NFPA 70E: Standard for Electrical Safety in the Workplace What is the output of the program in Exercise 17, if first = 26 and second = 8? True. 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). Quiz Question 1: Which of the following is not a category of electrical burns? Freeze You discover the electrical cord on a drill has been damaged and some of the cord's insulation is missing. Effective means of controlling power line hazards include: Question 2: Which of the following are ways . 2.The person's physical condition . a. Gaseous matter 3.Body tissue 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. How might this event affect the ability of animals to obtain energy to live? 0000419562 00000 n -Grounding= a conductive connection to the earth which acts as a protective measure. Muscular contraction and nerve damage occur; death likely. This caused him to fall from the ladder and land in a puddle of water, still holding the saw. 1) The _____ created the Occupational Safety and Health Administration (OSHA) to set and enforce protective workplace safety and health standards. 4.Broken. When selecting the right extension cord, a good rule of thumb is to match the thickness of the extension cord to the thickness of: An employee was texturing a wall using an air compressor. 1. 1.Damaged cover or insulation Work performed on an electrical system within reaching distance of energized components is_____work. Electrical hazards like frayed cords, missing ground pins, improper wiring or the harm that these hazards pose. 0000008392 00000 n b.burns. -Conductor= permits the free flow of electricity. -Falls. A measure of the energy of motion of the particles in a substance is its _____. If a worker has been retaliated against for using their rights, they Electrical safety quiz answers are given below. vpfuI)],s Match the length from job to outlet. When you plug in a device (e.g., a power tool), the electricity takes the easiest path from the plug-in, to the tool, and back to the power source. The contact lasts for 5 seconds before someone is able to shut off the power. Does the fall qualify as an electrical accident? <> c.Gasoline 3. 0000014257 00000 n d) All of the above. 0000004208 00000 n startxref De-energize and ground lines when working near them. c.A measurement of electricity When current travels through your body - Definition of electric shock, Choose the primary cause of an electric shock, Electric shock is caused when current travels through the body, the exits the ground. Draw a line from the item on the left that corresponds to the match on the right. 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. 0000420887 00000 n Extension cords are used to: Electrical Contractors Industry. Contact utilities for buried power line locations. Electrical Safety Standards in the Workplace - NFPA 70E - Grainger KnowHow The driver stopped the truck under the power line, and the victim, not realizing that the truck had moved, swung the boom to position the bucket behind the truck. The \rule{1cm}{1pt} artery carries deoxygenated blood from the heart to the lungs. There are many types of hazards - chemical, ergonomic, physical, and psychosocial, to name a few - which can cause harm or adverse effects in the workplace. d. Not checking to make sure that the motor was properly grounded, If the circuit does not turn off when testing the GFCI, the GFCI: In which of the following workplace situations are you at risk for coming into contact with live electrical . gYpV:+ endobj Electrical Safety Quiz-Test Your Electrical Safety Knowledge Electricity for power tools was supplied from an exterior 120-volt, grounded AC receptacle located at the back of the residence. Look for overhead power lines and buried power line indicators. 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. Wearing a baseball cap Any cords found not to be marked for hard or extra-hard use, or which have been modified, must be taken out of service immediately. Question 4: Which of the following is a type of burn caused by electrical hazards? a.311 OSHA 29 CFR 1910.147 . 4.Damaged cover or insulation, When using electric-powered hand tools, do not overload: Study with Quizlet and memorize flashcards containing terms like OSHA's electrical standards are based on: A. ANSI standards B. Quiz Question 5: A/an ___________ is a unit of measurement for electrical resistance. How will she choose the correct cord? _.9u'2G_0 Ue]e"x5|Y What is the minimum clearance distance you must maintain from the power lines? BE SAFE! It's okay to use extension cords with worn insulation, as . Ground metal parts of the following non-electrical equipment, as specified by the OSHA standard [, Frames and tracks of electrically operated. he most common shock-related injuries are: d.Water, Other electrical hazards in the workplace include: !DP#vr-\DM<6V-2'I5l6)Z@^m=}c3-aUOo6rr V-Y3d6HABmjD $TQCvK*eg&|Y596#H\ 0000421627 00000 n Safe operation of hand and portable powered tools and other hand-held equipment. d.Constructive objects, Select all answers that apply to the following statement and then click DONE. 0000002122 00000 n 0000000016 00000 n Most of the hydrides of Group 1A and Group 2A metals are ionic. 1.Missing or broken path to ground. Electricity to the auger was supplied by a series of 50-foot extension cords running to an adjacent property. 0000004965 00000 n Electrical Safety Multiple Choice Questions(MCQs) & Answers - gkseries 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. <>>> Yes, because he will be using electricity near water. Quiz Question 10: Ground-fault circuit interrupters must be used for all of the following except? Arc Flash. 1,[-c|"&u[Fu>wjte8j:xRk )"m_!6awT J,byp?fRBf?p|b3/Um\7"|+@5vvWAa5J^y*q,l b)Ftt4 :4,-J`! h|UnH}+i-. The workers had removed their shirts and were sweating. Ground all exposed metal parts of equipment. Visually inspect all electrical equipment before use. These short objective type questions with answers are very important for competitive exams as well as Board exams. He plans to use it over a period of at least six months. 10,000 milliamps (10 amps) Cardiac arrest and severe burns occur. Which of the following part of you body can burn if you come in contact with electricity? PDF Electrical Hazards - Occupational Safety and Health Administration She has an older drill with a steel housing and a 3-prong plug. Handling Damaged Extension Cord When Energized: A 19-year-old construction laborer was working with his foreman and another laborer to construct a waterfront bulkhead for a lakeside residence. On the day of the incident, the victim plugged in a damaged extension cord and laid it out towards the bulkhead. xref Use tools and equipment according to the instructions included in their listing, labeling or certification. The source of the electricity was apparently a short in a receptacle, but examination revealed that the electrical equipment used by the contractor was in such poor condition that it was impossible to make a certain determination of the source of the short.

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