Electrical Hazards Electrical hazards can be found in nearly every roofing work site. The presence of ______ can turn you, your equipment, or insulators like wood, into conductors. |tYny@YE>LkNj4-czZf"Usw>j\sv3fn},>},KeA s specifically addresses electrical protective devices. Ground all exposed metal parts of equipment. d.Water, Other electrical hazards in the workplace include: 0000002386 00000 n 1,[-c|"&u[Fu>wjte8j:xRk )"m_!6awT J,byp?fRBf?p|b3/Um\7"|+@5vvWAa5J^y*q,l b)Ftt4 :4,-J`! 4.Good condition of moveable parts, Items that could encourage overheating and cause tools to malfunction or start a fire include: The floor is covered in water and she is barefoot. A Safety Electrical One Line Diagram should be used to _____ all sources of electrical energy. %PDF-1.5 0000004444 00000 n Question 3: Employers are not required to enforce lock out/tag out practices in the workplaces. 1452 25 0000001861 00000 n d. No, because an extension cord would not provide enough power. Latoya is using a mixing motor to mix pool chemicals in a plastic drum. 0000001495 00000 n %PDF-1.4 % Get resources on specific hazards and their control, including identification, risk assessment and inspections, to keep your workplace healthy and safe. Examples Of Electrical Hazards. OSHA Safety and Health Topics Page. 0000002479 00000 n 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. The auger then fell across the other worker, the 24-year-old victim. Outlets Does the fall qualify as an electrical accident? Using circuit breakers or fuses with the wrong rating for over-current protection, e.g. Intentionally creating a low-resistance path that connects to the earth. 3.Clear (a) Describe the reaction between the hydride ion and water in terms of a Bronsted acid-base reaction. RZyd 0000008392 00000 n Take any defective equipment out of service. The scaffold had been constructed only 21 horizontal inches across from a 7,620-volt power line. 3. 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. a.311 Both could have prevented the accident from occuring. The victim collapsed into the lake and sank 4-1/2 feet to the bottom. Looking for NFPA 70E Certification? Reportedly, he was shocked throughout the morning, and he had replaced one of the extension cords in an effort to eliminate the shocks. Suppose a volcano threw so much ash into the air that it blocked much of the sunlight. 0000003715 00000 n The modification of the plug was not an intended use or prescribed by the manufacturer. Use the terms (freezing, gas, liquid, physical changes, solubility, solution, temperature, volume) to complete the sentence. Study with Quizlet and memorize flashcards containing terms like OSHA's electrical standards are based on: A. ANSI standards B. Computers 4.Cardiac arrest 4 0 obj 1. -Damage to internal organs. To be safe, you must think about your job and plan for hazards. 4.Damaged cover or insulation, When using electric-powered hand tools, do not overload: Electricity becomes hazardous when it takes an unintended path to complete the ________. SECTION #4 | Participant Guide 2 Electrical Safety mELECTRICAL SAFETYm mACTIVITY 1 - GROUNDINGm In your small group, read fact sheets A and B, and the following scenario. Question 1: Which of the following is a danger of electricity? A. wrap tape around the damaged spot to prevent electrical shocks. A 20-year-old bricklayer standing on the work platform in contact with the main scaffold was electrocuted. Remove from service any equipment with frayed cords, missing ground prongs, cracked tool casings, etc. B. outdoors. Select the correct answer and then click DONE. 0000005734 00000 n b.Not wearing insulating shoes or boots when she was handling electrical equipment 4.Must be replaced, Always use a GFCI: endobj 0000001646 00000 n _5JKy. c. No, because the electricity is needed on a long-term basis. Select the correct answer and then click DONE. Select the correct answer and then click DONE. a) Ensure overhead power line safety Electricity will form a "path" or "loop". If a defective power tool gives you an electric shock, how might your muscles react? Safe operation of hand and portable powered tools and other hand-held equipment. c) Establish and enact an assured equipment grounding conductor program (AEGCP) 1. 0000001896 00000 n Which of the following can be the result of electric shock? Frames of non-electrically driven elevator cars to which electric conductors are attached. Match the length from job to outlet. 2.Loose screws 5.Twitch, Electrical shock may result in: and more. 3. Which of the following are caused by contact with electricity? 0000007694 00000 n 0000002385 00000 n 1. Be sure equipment that has been shop fabricated or altered is in compliance. 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. %%EOF How fast would the ball be moving at the moment of release? 0000002122 00000 n De-energizing 0000001908 00000 n d. heart attacks. b.A fast-acting switch monitoring current flow The ground wire was not attached on the male end of the cord's plug. %PDF-1.5 0000010155 00000 n 0000007427 00000 n The victim used two extension cords to supply power: a home-made cord plugged into an ungrounded receptacle on the pole, and a UL-approved cord extending from the homemade cord to the saw. b.Shut off power within five minutes of the imbalance 1. Electricity must follow an uninterrupted loop from the power source to the equipment and back to the power source or ________. hb``b``=p0X8n0lY0L#rK[V26h* @0H!XDl+!&FfUfo`h6l -If current passes through the body near the heart or brain. Which one of these methods MOST effectively protects machines, tools, and operators against damage from electrical current? In which of the following workplace situations are you at risk for coming into contact with live electrical . High humidity -Voltage= a measure of electrical force. The auger has a one-quarter horsepower motor encased in a metal housing with two handles. Additionally, the ground prong was missing and there was no GFCI protection. 0000024814 00000 n 5>vB35Plm$\4{U[lU`t~.vJGmFO^@+ cGPzNY*oS(m%q{Agp he most common shock-related injuries are: Potential hazards of electricity are preventable if you: Electricity must always travel in a(n) ________, ________ circuit. The workers administered CPR to the victim, but to no avail. Electrical safety requirements necessary for the practical safeguarding of employees in the workplace. d.Constructive objects, Select all answers that apply to the following statement and then click DONE. 0000006152 00000 n 0000419562 00000 n Look for overhead power lines and buried power line indicators. Select the correct answer and then click DONE. The victim provided a path to ground and was electrocuted. When does electricity become hazardous to humans? 0000003603 00000 n A 120v. One worker, holding the deadman's switch, received a shock from a ground fault in the auger and was knocked back from the machine. 2. endobj 3.The length of time the body is in contact with electricity Short In Power Saw/Ungrounded Temporary Power Supply: On July 10, 1986, a 22-year-old carpenter was working at the construction site of large apartment complex, using a portable electric saw to construct the wooden framework of a laundry building. Lockout/tagout procedures. 3. (See NFPA 70E-2021 Article 130 and OSHA subpart S part . An 18-year-old worker at a construction site was electrocuted when he touched a light fixture while descending from a scaffold for his afternoon break. 1 0 obj [Flexible Cords and Power Tools]. 0000010603 00000 n c.A measurement of electricity a.Two-prong plug Leaving or using electrical appliances near water - As electric current is transmitted faster in on wet surfaces, you stand a chance of getting an electric shock. V1?`T`P``ya W3 |"H36K1A@, rO(V[|NAT30 qI? endstream endobj 221 0 obj <>/Filter/FlateDecode/Index[30 152]/Length 27/Size 182/Type/XRef/W[1 1 1]>>stream OSHA: Air Monitoring & Medical Surveillance, WebQuest: Biomes, Ecosystems and Habitats. uVNSF!UTRQ91uR,6@hCH}]GAlaPh)NeT$iQ89S9|?4wahU ltz9 PH[$I&VX9WG%K~1{u8M:D"+HLEy 3@NR^z!rB^?RyOj;'Lof. Explosion Using a dry wood ladder when the possibility exists for contact with electricity. 0000012360 00000 n Effective means of controlling power line hazards include: <> Occupational Safety & Health Administration, Death Due to Lack of Ground-Fault Protection, Deaths Due to Missing or Discontinuous Path to Ground, Deaths Due to Equipment Not Used in Manner Prescribed, Deaths Due to Improper Use of Extension and Flexible Cords, Occupational Safety and Health Administration, Outreach Training Program (10- and 30-hour Cards), OSHA Training Institute Education Centers, Improper use of extension and flexible cords, Electrical Safety: Safety and Health for Electrical Trades Student Manual, ground-fault circuit interrupters (GFCI)s, assured equipment grounding conductor program (AEGCP), Electricity and Tree Care Work A Deadly Combination, Working Safely Around Downed Electrical Wires, Electrical Safety Hazards of Overloading Cable Trays, Small Business Safety and Health Handbook, Fire Fighters Exposed to Electrical Hazards During Wildland Fire Operations, Fatality Assessment and Control Evaluation (FACE) Program, NIOSH Face Reports Indexed by Industry or Cause of Fatality, Worker Deaths by Electrocution: A Summary of Surveillance Findings and Investigative Case Reports, Severe Storm and Flood Recovery Assistance. Electrical hazards expose workers to the following: Burns: Three types; electrical, arc flash, or thermal contact. Work performed on an electrical system within reaching distance of energized components is_____work. g]+fn_m{mja_0Y w endstream endobj 189 0 obj <> endobj 190 0 obj <>stream Any cords found not to be marked for hard or extra-hard use, or which have been modified, must be taken out of service immediately. 0000414648 00000 n 0000420564 00000 n 0000021516 00000 n HJ=S~68438IR/:VR C Y<7H*$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 3. (D) None of the above. Which of the following are insulators of electricity? It is important to note that NFPA 70E is a . Quiz Question 4: Which is a preventive measure to prevent hazards while working with power lines? 4.No, because he does not need to use an extension cord. Ajay needs to use a dewatering pump to drain standing water on a construction site. 0000055319 00000 n Short Confined spaces Machinery-related hazards (lockout/tagout, boiler safety, forklifts, etc.) xref Draw a line from the item on the left that corresponds to the match on the right. Select the correct answer and then click DONE. 1.Fingernails <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> 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. 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. (3,2,1), (5,4,3). 1.Missing or broken path to ground. d.Metal, Over half of all deaths caused by electricity result from contact with ________. 0000006893 00000 n vpfuI)],s The following references aid in recognizing hazards associated with electrical work. 2.Is working properly Using multi-receptacle boxes designed to be. The victim was part of a crew that was constructing a concrete wall. lb MKS 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. Use only equipment that is approved to meet OSHA standards. xb```VVF A10p,``Pp`hhdpn``r`L:[ I,aZ4Knj21 `ny; Ge7t@OrMx)"cx&e:[~J%aUJ\*t Electrical current travels through insulated ________. Quiz Question 6: Which of these is not a type of Ground Fault Circuit Adapter? Draw a line from the item on the left that corresponds to the match on the right. SCENARIO: You encounter a co-worker on a residential remodeling job. 0000012944 00000 n Use non-conductive wood or fiberglass ladders when working near power lines. 4. Which of the following factors determine how severe an electrical injury might be? 0000001731 00000 n Do not remove ground prongs from cord- and plug-connected equipment or extension cords. True. Bob is asked to repair some overhead wiring, requiring the use a ladder. 0000421920 00000 n When an electric shock occurs, your muscles may: She finds several available in the shop. 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 C 277v. Flexible Cord Not 3-Wire, Hard Service Variety: A worker received a fatal shock when he was cutting drywall with a metal casing router. % 4.Circuit breakers, When inspecting power tools, look for: Which of the following are conductor of electricity? c.The outlet. Fatal electrocution is the main risk, but burns and falls from elevations are also hazards. 3.Loss of eyesight Quiz Question 5: A/an ___________ is a unit of measurement for electrical resistance. using a 30-amp breaker in a system with 15- or 20-amp receptacles. 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 A 29-year-old worker was electrocuted when he pushed a crane cable into a 7,200-volt power line. Hazards are created when cords, cord connectors, receptacles, and cord- and plug connected equipment are improperly used and maintained. Is the west coast of Africa a plate boundary? 12 months C. 6 months D. Never Q23. d/E \VZvl$Y#nH,EIm /\"BQ>Rkl6xZWtAgfs OSHA 10 General Industry Topic Exams Answer Key TOPIC EXAM 1: INTRO TO OSHA 1. d) All of the above. b.Ground Fault Critical Interrupter The router's 3-wire power cord was spliced to a 2-wire cord and plug set which was not rated for hard service. Others, such as office workers and sales people, work with electricity indirectly and may also be exposed to electrical hazards. 1.When you are using electricity near water 0000004274 00000 n 1.Damaged cover or insulation Whether the hazard is posed by worn or damaged power tools or cords, improperly grounded tools or equipment, or the presence of standing water, it is the responsibility of the contractor to make sure the tools and equipment In addition to contact with power lines, the top electrical hazards include: Burns. Find the energy required to raise an electron from the n=4n=4n=4 state to the n=5n=5n=5 state in Li2+\mathrm{Li}^{2+}Li2+ and in hydrogen atom. 2.Skin 2.Using extension cords or electrical tools properly. Becoming part of the circuit exposes you to ________, the most dangerous electrical hazard. What is the most common, non-fatal, electrical shock-related injury? 3.Maintaining a safe distance of at least 10 feet from all overhead power lines. Select the correct answer and then click DONE. Death. Explain the process that prevents the poles from steadily cooling off and the tropics from heating up over time. 2.Yes, because he is using a portable power tool. H\n@0vj@/R#tnvihavopnS1>v8Z6zLpOCRU.O^6pImjgk{xv6%zp\,{|7_WqNfhu09$U?kW}: }y}]OIL5~W*8D~%W-yww;sORYbfspA.%YJV L%=Kx&0W+ D. near other electrical equipment. OSHA requires the testing of a volt meter after a voltage test on voltage above_____. 0000003413 00000 n 1.Flammable liquids d. Match the outlet prongs to the extension cord. (A) Shotgun sticks. Power was supplied through two extension cords from a nearby residence. Know glove capability VS hazard anticipated (exposure to chemicals, heat, or flames). [Power Tools]. Electrical safety quiz answers are given below. a.20,000 volts 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 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. 0000003900 00000 n One hand drill was not grounded, and the other had no safety plate. D. Have an ANSI sticker and an expiration date. Continually audit cords on-site. Attaching ungrounded, two-prong adapter plugs to three-prong cords and tools. Select the correct answer and then click DONE. Electric current cannot exist without an unbroken path to and from the conductor. Use tools and equipment according to the instructions included in their listing, labeling or certification. Is not painted over <> Select the correct answer and then click DONE. b. Select the correct answer and then click DONE. Remove cords from receptacles by pulling on the plugs, not the cords. Equipment used in manner prescribed. 0000015549 00000 n d.Adapter, What is a GFCI? c.falls. The source of the shocks -- the saw -- was not replaced. d.A power tool, A GFCI is designed to: 2. 0000018681 00000 n A measure of the energy of motion of the particles in a substance is its _____. . 0000421627 00000 n Electrical Safety Quiz Electrical safety is an important topic that you and your workers need to know about. -Current= the movement of electrical charge. The individual's perspiration-soaked clothing/body contacted bare exposed conductors on one of the cords, causing an electrocution. 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. b.The tool's power cord. Explosion. [, Do not modify cords or use them incorrectly. Electricity for power tools was supplied from an exterior 120-volt, grounded AC receptacle located at the back of the residence. OSHA CONSTRUCTION FINAL EXAM Question and Answer Part 10. ly/homeo3b700 Which of the following is a resource within the. 0000005632 00000 n gYpV:+ Using the wrong light bulb wattage; Overloading power strips and outlets; Unprotected electrical outlets; Poor wiring; Defective electrical wires Question 1: Each year, approximately __________ workers suffer from electricity related injuries. You discover the electrical cord on a drill has been damaged and some of the cord's insulation is missing. On the day of the incident, the victim plugged in a damaged extension cord and laid it out towards the bulkhead. 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. 10,000 milliamps (10 amps) Cardiac arrest and severe burns occur. Overview. 3.When you are using portable power tools 3.Loose nuts endobj 1. Study with Quizlet and memorize flashcards containing terms like Bob is asked to repair some overhead wiring, requiring the use a ladder. The victim was totally deaf in one ear and suffered diminished hearing in the other. Switch OSHA 29 CFR 1910, Subpart S . 1.Extension cords Contact utilities for buried power line locations. 0000004273 00000 n (See NFPA 70E-2021 Article 130 and OSHA subpart S part 1910.333 (a) (1)- (2) and (c) for complete details.) Should Ajay use a GFCI? Besides personal bodily injury, what other electrical hazards can be found in the workplace? b.Rod Find the volume of the parallelepiped determined by the vertices (1,1,1),(4,7,2) . You need to evaluate the situation you are in and assess your . 1452 0 obj <> endobj 2. No GFCI's were used. Then answer the questions below. De-energize and ground lines when working near them. Additionally, the ground prongs were missing from the two cords. ( Quiz Question 2: Which is acceptable when using powdered tools? 0000004884 00000 n 0000002403 00000 n 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. b.Match the thickness of the extension cord to the thickness of the nail gun's power cord. 3.Draped over equipment. Muscular contraction and nerve damage occur; death likely. 15,000 milliamps (15 amps) Lowest overcurrent at which a typical fuse or circuit breaker opens a circuit! After the wall was poured, one driver cleaned the loading chute of his cement truck with a water hose mounted on the truck. 4.Combustible dust, Fundamentals of Engineering Economic Analysis, David Besanko, Mark Shanley, Scott Schaefer. 2 0 obj 0000011060 00000 n 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. Exercise their rights under the law without retaliation, including reporting an injury or raising health and safety concerns with their employer or OSHA. 182 0 obj <> endobj xref 182 41 0000000016 00000 n 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. Select the correct answer and then click DONE. 0000004686 00000 n H. The NEC C. Suggestions c.911 HWMo#7v#h>6,Z4- Protection is lost because it will not trip when the system's load has been exceeded. ZR)!=w|; @uT C0? 1.Pain (b) The same reaction can also be classified as a redox reaction. (C) Hot sticks. %PDF-1.4 % 2. 30 days B. B. Isolating, Power lines may be located underground. 0000003254 00000 n A worker was removing a metal antenna when it made electrical contact with a 7200-volt power transmission line. Select the choices that accurately define the common electrical term. You should? b.burns. Two of the extension cords had no ground prongs, and some of them were repaired with electrical tape. c) Age d.The body of the power tool. )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'. 2. He plans to use it over a period of at least six months. What is the minimum clearance distance you must maintain from the power lines? 2.Using an aluminum ladder when the possibility exists for contact with electricity. Question 4: Which of the following is a type of burn caused by electrical hazards? A worker was operating a " electric chisel when an electrical fault occurred in the casing of the tool, causing him to be fatally electrocuted. Select the choices that accurately define the common electrical term. d.Alert workers of any water in the area, GFCI is an acronym for: Lx*jWP# /c2)|]NXqAx>=~'[ If the electrical conductors become exposed, there is a danger of shocks, burns, or fire. Extension cords had poor splices, no grounds, and reversed polarity. b. Deductive objects Wearing a baseball cap stream 4.Organs, The presence of ________ can turn you, your equipment, or insulators like wood into conductors. Apparently, his hand contracted and he was "locked" to the saw. The first worker knocked the auger off the victim, but saw that the electric cord was wrapped around the victim's thigh. I;C`_;LV'd,|#H--e`( ')'RpAgA7O`?%68SB Is split <>>> Dirk, a 28-year-old mechanic, is performing maintenance on a piece of equipment when he is shocked. Quiz Question 7: Which is not an insulator? 0000004946 00000 n 1 0 obj 0000007741 00000 n Electrical Safety Multiple Choice Questions and Answers for competitive exams. 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. What do tripped circuit breakers and blown fuses indicate? 3.No, because he will not be touching any grounded material when using the tool. Improper Use of Extension and Flexible Cords. 2.Grease a.Yes, because the electrical shock caused the fall. When inspecting extension cords, look for: Dust =EAn`u!d, |\~Y>ZF( dnLN\2vP6 >sSjgh2:Lmqx#a[G2{h$zW]_:@Lvr)2T:R-/ `&~O4j)>1P*M 5>F:1B.g!AR [, Use all equipment according to the manufacturer's instructions. 2.Grounding trailer 0000000816 00000 n 0000002195 00000 n hazard or that their employer is not following OSHA's rules. OSHA 10 General Industry Test Answer Key WALKING. b.10 feet H\n0)M) 0Ir(,?FoKhdklz6zHG;mOqOh-tv.]NGv~d.m\S{|Fo-x-\"1X/niCYeq"ol8D~&?Kr V_/9yf 9JV%J899s{_G#R0="dL5,p: c.Three-prong plug Provides information about the hazards that electrical workers may experience as a part of their jobs. Using cords or tools with worn insulation or exposed wires. Extension cords are used to: 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. What type of burns are the result of current flowing through and exiting the body? When used on the moon? OSHA 29 CFR 1910, Subpart P . [. c.Guaranteed Fault Circuit Interrupter D 600v. Quiz Question 10: Ground-fault circuit interrupters must be used for all of the following except? c. Extend the reach of the power tool. Overhead and buried power lines at your site are especially hazardous because they carry extremely high voltage. b.Yes, because Bob was on . 0000017163 00000 n When the energized conductor made contact with the ladder, the path to ground included the worker's body, resulting in death. Visually inspect all electrical equipment before use. This is action is also known as creating or completing an electrical circuit. OSHA: Air Monitoring & Medical Surveillance, 5 ANO - RETOMANDO ARTIGO, SUBSTANTIVO E ADJE. As he is working on the wiring, he receives an electrical shock that knocks him backward and causes him to fall off the ladder. 3.Tears What was Latoya's first mistake? The light fixture, which served as a ground, was known to be faulty for at least 5 months before the incident. 2.Loss of muscle control s\A0W+ Gloves used for electrical work must be inspected and tested prior to use, and be certified every: A. 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. !DP#vr-\DM<6V-2'I5l6)Z@^m=}c3-aUOo6rr V-Y3d6HABmjD $TQCvK*eg&|Y596#H\ 0000004208 00000 n a.Electricity Seven employees of a masonry company were erecting a brick wall from a tubular, welded-frame scaffold approximately 24 feet high. -Severe skin burns. A co-worker disconnected the power cord to the saw, too late to save the victim. Before work began, the company safety director made sure that insulated line hoses were placed over sections of the the power line near the jobsite and that a safety clearance zone was marked off for arriving cement trucks. Post warning signs. d. 411, You are working with a 10-foot section of a conductive pipe near power lines. You can classify scales for weighing objects as those that use springs and those that use standard masses to balance unknown masses. b.Yes, as it would be too expensive to install more permanent wiring and receptacles. Working with electricity can be dangerous. Supply power for tools or equipment on a long-term basis. Before using the equipment, be sure that the ground wire: 0000001116 00000 n Which of the following are insulators of electricity? qnde>9!.,T2 :hw5 #OaPxkx=y7]J-yv*'H$jmVCq$ sx:R2$9SY+D!!LJ:n+.\#Hu~2VI O? *Effects are for voltages less than about 600 volts. 4.Running through doorways. Due to the dynamic, rugged nature of construction work, normal use of electrical equipment at your site causes wear and tear that results in insulation breaks, short-circuits, and exposed wires. Explain the purpose and use of the MyPlate symbol. [29 CFR 1926.416(a)(1)]. 4. Potential hazards of electricity are preventable if you do which of the following listed below? -Conductor= permits the free flow of electricity. q>NmnLNmb$"Iyx1bD9.~Ll. 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. Among all of the safety measures that can and should be used to prevent electrical shock, which one is the most essential? a.Shut off power within a fraction of a second 0000108920 00000 n How will she choose the correct cord? Used across walkways. A) Identify; Castigate; C) Evaluate; D) Modify; 3. d.Ground Fault Circuit Interrupter, : Another electrical hazard that can cause injury or death in the workplace is a ________ path to ground. gYpV:+ Death is probable. <>>> 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 1.Is firmly connected Select the correct answer and then click DONE. View Best Practices with Power Lines Quiz OSHA 30.docx from OSHA 30 at Columbia Southern University.
