# which of the following are electrical hazards osha quizlet

The accident site was wet; also, humidity was high and the victim was sweating. Short Confined spaces Machinery-related hazards (lockout/tagout, boiler safety, forklifts, etc.) You discover the electrical cord on a drill has been damaged and some of the cord's insulation is missing. 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. b+t6W' te+.W_{8u7Dt@1c. 1.Cuts d. No, because an extension cord would not provide enough power. When he grasped the handle of the bucket to pull it down, the crane cable came into contact with the overhead line. BE SAFE! %PDF-1.5 <> When current travels through your body - Definition of electric shock. 1452 25 The \rule{1cm}{1pt} artery carries deoxygenated blood from the heart to the lungs. 4 0 obj Which of the following are insulators of electricity? 0000009628 00000 n You can classify scales for weighing objects as those that use springs and those that use standard masses to balance unknown masses. Electrical safety requirements necessary for the practical safeguarding of employees in the workplace. If you are touching any grounded material while using a power tool 1.The humidity of the environment 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: )KL3C?e%Y92$,]^)kmR/!8\ JF N'bT\U1+tc+&:'ZuGi!UeUrE [?CrU.&|#@Ed,=2UF]r/n/{v-;v>%/~;[*AxBU,-#!uyFGR,Wv[ cOzObnZfI4ob:pf "~ .iBE@mOs:Os5U9cnU Vd"F'4Bm?>}hyRQyrX0U026h7#L'. <>>> Of the following choices, which are frequent electrical hazards DHPP0MHLHIPPXc f2LXL"dgJ:@ ysllr-shH,Y@Z 23J0a_TXD;X,;&0i,i&f&T8h R/ v,l. 440!2D9482q={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 The normal wear and tear on extension and flexible cords at your site can loosen or expose wires, creating hazardous conditions. A doubly ionized lithium atom (Li2+,Z=3)\left(\mathrm{Li}^{2+}, \mathrm{Z}=3\right)(Li2+,Z=3) is in n=4n=4n=4 Bohr orbit. 0000022637 00000 n Question 4: When a worker receives an electric shock, first aid must start within ___________ minutes. 0000017163 00000 n vpfuI)],s Overhead and buried power lines at your site are especially hazardous because they carry extremely high voltage. a.related to muscle damage. c.Absorb any water around the area A) Identify; Castigate; C) Evaluate; D) Modify; 3. 0000001672 00000 n 1 0 obj 0000003771 00000 n 0000017336 00000 n he most common shock-related injuries are: 12 months C. 6 months D. Never Q23. 3. Extension cords had poor splices, no grounds, and reversed polarity. Using tools and equipment that can contact power lines increases the risk. d.Water, Other electrical hazards in the workplace include: 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. Electrocution. trailer <]/Prev 500768/XRefStm 1495>> startxref 0 %%EOF 222 0 obj <>stream (See NFPA 70E-2021 Article 130 and OSHA subpart S part 1910.333 (a) (1)- (2) and (c) for complete details.) 0000004793 00000 n Using circuit breakers or fuses with the wrong rating for over-current protection, e.g. 0000420277 00000 n 3.ack of ground fault protection. 3.The length of time the body is in contact with electricity OSHA Safety and Health Topics Page. What is the most common, non-fatal, electrical shock-related injury? As the victim climbed down a makeshift ladder, he shifted the saw from his right hand to his left, and was shocked. V1?TPya 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 c.falls. An employee was texturing a wall using an air compressor. D. Communicate the hazard to the crew and subs, use signs and bar E. Both C and D Q22. 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. 0000003254 00000 n In addition to contact with power lines, the top electrical hazards include: Does the fall qualify as an electrical accident? 0000004686 00000 n 0000001495 00000 n 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 0 obj Select the correct answer and then click DONE. %PDF-1.5 a. 3.Maintaining a safe distance of at least 10 feet from all overhead power lines. <> I;C_;LV'd,|#H--e( ')'RpAgA7O?%68SB 0000001908 00000 n OSHA: Air Monitoring & Medical Surveillance, WebQuest: Biomes, Ecosystems and Habitats. 1. 3.Tears The length of time the body is in the circuit, in contact with electricity - Factor determining the severity of an electrical . As he is working on the wiring, he receives an electrical shock that knocks him backward and causes him to fall off the ladder. Electric current cannot exist without an unbroken path to and from the conductor. 3. 0000018681 00000 n Then answer the questions below. 4.Organs, The presence of ________ can turn you, your equipment, or insulators like wood into conductors. Question 2: Which of the following are ways employers must protect their employees on the workplace? c.A measurement of electricity 0000001896 00000 n [Power Tools]. Burns. c. Extend the reach of the power tool. 1452 0 obj <> endobj 0000421920 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. Using the wrong light bulb wattage; Overloading power strips and outlets; Unprotected electrical outlets; Poor wiring; Defective electrical wires 0000004444 00000 n 1. Explain the process that prevents the poles from steadily cooling off and the tropics from heating up over time. hazard or that their employer is not following OSHA's rules. 2.Complete 2.Using an aluminum ladder when the possibility exists for contact with electricity. Select the correct answer and then click DONE. -Voltage= a measure of electrical force. If a worker has been retaliated against for using their rights, they stream (3,2,1), (5,4,3). 2.Skin OSHA 29 CFR 1910.147 . 0000012360 00000 n 3. d) All of the above. 0000002150 00000 n Latoya is using a mixing motor to mix pool chemicals in a plastic drum. He may have dropped the extension cord at the site and not heard the connector break. 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. SCENARIO: You encounter a co-worker on a residential remodeling job. To be safe, you must think about your job and plan for hazards. 1.Missing or broken path to ground. Lockout/tagout procedures. endobj The floor is covered in water and she is barefoot. 0000002386 00000 n 0000013716 00000 n 0000419562 00000 n 0000005716 00000 n 4. Electricity must follow an uninterrupted loop from the power source to the equipment and back to the power source or ________. HJ=S~68438IR/:VR C Y<7H*$F>ya)N1bTa+'OdzydV9QS]b{}(=q?pH,mt8{Ag ]wp?2N$AfnhBL!jV=6ho)5jA8HBkh{T[v\G%b|4| Eo*cF ]TBGjB[r6)WzCkQ;Bx(]*JG;&o0TV.P=s4Gs(&e~}j76,-6at$]r**-I!o66PqK.z "*D 3. Question 1: Which of these is a type of Ground Fault Circuit Adapter? 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. 1.A source of electrical current to flow. (B) Switch sticks. 128 0 obj <> endobj xref 128 26 0000000016 00000 n Electricity to operate portable power tools was supplied by a temporary service pole 50 feet away. 1.Missing To avoid injury or death, you must understand and recognize hazards. c.15 feet 0000420564 00000 n It's okay to use extension cords with worn insulation, as . % 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. 1) The _____ created the Occupational Safety and Health Administration (OSHA) to set and enforce protective workplace safety and health standards. 0000001731 00000 n Quiz: Electrical Hazards. Using a dry wood ladder when the possibility exists for contact with electricity. Electrical Hazards Electrical hazards can be found in nearly every roofing work site. Metal partitions, grill work, and similar metal enclosures around equipment of over 1kV between conductors. Using cords or tools with worn insulation or exposed wires. What is the minimum clearance distance you must maintain from the power lines? Both the operator and the victim failed to notice that the boom had contacted a 2,400-volt overhead power line. The modification of the plug was not an intended use or prescribed by the manufacturer. Intentionally creating a low-resistance path that connects to the earth. 0000003640 00000 n Ground all power supply systems, electrical circuits, and electrical equipment. d. 20 feet. Both could have prevented the accident from occuring. 3. 0000001116 00000 n 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: 0000004884 00000 n 0000021516 00000 n H\n@0vj@/R#tnvihavopnS1>v8Z6zLpOCRU.O^6pImjgk{xv6%zp\,{|7_WqNfhu09$U?kW}: }y}]OIL5~W*8D~%W-yww;sORYbfspA.%YJV L%=Kx&0W+ Which of the following can be the result of electric shock? endobj Electrical Contractors Industry. Provide a safe path to earth ground for electricity. 4.Must be replaced, Always use a GFCI: <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> The victim provided a path to ground and was electrocuted. Which of the following are conductor of electricity? d.Add more outlets. 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. -If current passes through the body near the heart or brain. 0000427811 00000 n OSHA 10 General Industry Topic Exams Answer Key TOPIC EXAM 1: INTRO TO OSHA 1. 0000003900 00000 n Additionally, the ground prongs were missing from the two cords. A co-worker disconnected the power cord to the saw, too late to save the victim. lex has set up a mobile engine testing station in the maintenance area. Attaching ungrounded, two-prong adapter plugs to three-prong cords and tools. 3.Clear 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. % d.50,000 volts. q>NmnLNmb$"Iyx1bD9.~Ll. As he is working on the wiring, he receives an electrical shock that knocks him backward and causes him to fall off the ladder. Water While attempting to unplug the compressor from the extension cord, the employee was fatally shocked. If the insulation on the tool's power cord is damaged and you touch this area while grounded, the electricity will ________. b) Staples 0000010603 00000 n Does the fall qualify as an electrical accident? -Glass. The victim signaled the operator of the crane to extend the boom and lower the hoist cable. 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). 3.When you are using portable power tools 0000056642 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! 0000002403 00000 n 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. trailer <<11AC4BACEBCA4B32A885F1120BD3A307>]>> startxref 0 %%EOF 153 0 obj <>stream 1. a.20,000 volts No GFCI's were used. Test your knowledge with our electrical safety quiz below. xref Question 2: Which of the following is NOT a category of electrical burns? Use tools and equipment according to the instructions included in their listing, labeling or certification. b.811 As he removed the forms, he wrapped them with a length of cable called a choker, which was to be attached to a crane. b.Yes, as it would be too expensive to install more permanent wiring and receptacles. One hand drill was not grounded, and the other had no safety plate. 5.Twitch, Electrical shock may result in: -Conductor= permits the free flow of electricity. a.Conductive objects endobj Death is probable. 0000422244 00000 n Study with Quizlet and memorize flashcards containing terms like Bob is asked to repair some overhead wiring, requiring the use a ladder. b.The tool's power cord. 0000005050 00000 n 0000007116 00000 n Ground metal parts of the following non-electrical equipment, as specified by the OSHA standard [, Frames and tracks of electrically operated. _.9u'2G_0 Ue]e"x5|Y c.Guaranteed Fault Circuit Interrupter Fatal electrocution is the main risk, but burns and falls from elevations are also hazards. <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 792 612] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> 0000001814 00000 n Many workers are unaware of the potential electrical hazards present in their work environment, which makes them more vulnerable to the danger of electrocution. The workers administered CPR to the victim, but to no avail. Seven employees of a masonry company were erecting a brick wall from a tubular, welded-frame scaffold approximately 24 feet high. 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. Electrical current travels through insulated ________. Use only extension cords that are marked with a designation code for hard or extra-hard usage. 4.Good condition of moveable parts, Items that could encourage overheating and cause tools to malfunction or start a fire include: Work performed on an electrical system within reaching distance of energized components is_____work. 0000000816 00000 n Others, such as office workers and sales people, work with electricity indirectly and may also be exposed to electrical hazards. How will she choose the correct cord? 4. Question 1: Which of the following is a danger of electricity? Use non-conductive wood or fiberglass ladders when working near power lines. Becoming part of the circuit exposes you to ________, the most dangerous electrical hazard. B. outdoors. Frames of non-electrically driven elevator cars to which electric conductors are attached. OSHA 29 CFR 1910, Subpart S . 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. 0000414648 00000 n a.Shut off power within a fraction of a second B. Freeze 4.Circuit breakers, When inspecting power tools, look for: Dirk, a 28-year-old mechanic, is performing maintenance on a piece of equipment when he is shocked. Examples of Equipment That Can Contact Power Lines. d.Alert workers of any water in the area, GFCI is an acronym for: Carly needs to use an extension cord with her corded nail gun. 0000012944 00000 n Electrical Safety Quiz Electrical safety is an important topic that you and your workers need to know about. Quiz Question 5: A/an ___________ is a unit of measurement for electrical resistance. c) Age 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. 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. Select the correct answer and then click DONE. Additionally, the ground prong was missing and there was no GFCI protection. Stay at least 10 feet away from overhead power lines. Select the correct answer and then click DONE. What factors determine the severity of Dirk's injuries? You need to evaluate the situation you are in and assess your . Take any defective equipment out of service. The auger has a one-quarter horsepower motor encased in a metal housing with two handles. Ground all exposed metal parts of equipment. s\A0W+ c. Inductive objects b.10 feet When selecting the right extension cord, a good rule of thumb is to match the thickness of the extension cord to the thickness of: 5. -Damage to internal organs. The contact lasts for 5 seconds before someone is able to shut off the power. 1. 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. 1.When you are using electricity near water a. A measure of the energy of motion of the particles in a substance is its _____. c.911 View Answer Answer: 600v 4 . -Rubber. When does electricity become hazardous to humans? Match the length from job to outlet. Electrical Safety Multiple Choice Questions and Answers for competitive exams. C 277v. -Wood. The following are electrical hazards: Shock. 0000003603 00000 n 0000004208 00000 n 2.Placed along a wall. Flexible Cord Not 3-Wire, Hard Service Variety: A worker received a fatal shock when he was cutting drywall with a metal casing router. Select the correct answer and then click DONE. b. Select the correct answer and then click DONE. <> 0000004273 00000 n Muscular contraction and nerve damage occur; death likely. Be sure equipment that has been shop fabricated or altered is in compliance. 3.Draped over equipment. The most dangerous place to use electrical equipment is? Use only cords, connection devices, and fittings that are equipped with strain relief. 2.Grease b) By supplying GFCIs, or ground-fault circuit interrupters |tYny@YE>LkNj4-czZf"Usw>j\sv3fn},>},KeA s 2.Using extension cords or electrical tools properly. Unless you know otherwise, assume that overhead lines are energized. [, Do not modify cords or use them incorrectly. 0000002733 00000 n Question 4: Which of the following is a type of burn caused by electrical hazards? 0000002876 00000 n Know glove capability VS hazard anticipated (exposure to chemicals, heat, or flames). d.Ground Fault Circuit Interrupter, : Another electrical hazard that can cause injury or death in the workplace is a ________ path to ground. 1476 0 obj <>stream Continually audit cords on-site. Which of the following injuries can occur when muscles flex or twitch from an electrical shock? The ________ keeps the electricity on its intended path through the conductor. Do not remove ground prongs from cord- and plug-connected equipment or extension cords. xbVVF A10p,PphhdpnrL:[ I,aZ4Knj21 ny; Ge7t@OrMx)"cx&e:[~J%aUJ\*t Draw a line from the item on the left that corresponds to the match on the right. Question 3: Employers are not required to enforce lock out/tag out practices in the workplaces. 1.Flammable liquids 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. 0000014257 00000 n 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? She finds several available in the shop. 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 iqnkZtdc#^)AX96(wFZ,RP{[\j\aJgc) diV;BNzZge(}=0Pj Qp@"]yOnNw89 Isolating, Power lines may be located underground. 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. Quiz Question 4: Which is a preventive measure to prevent hazards while working with power lines? Select the correct answer and then click DONE. 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. Additional minimum clearance distance is required for power lines carrying over ________. OSHA 10 General Industry Test Answer Key WALKING. Easy to identify 1.Damaged cover or insulation b.Shut off power within five minutes of the imbalance Fire 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. 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 OSHA CONSTRUCTION FINAL EXAM Question and Answer Part 10. ly/homeo3b700 Which of the following is a resource within the. Effective means of controlling power line hazards include: 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. Study with Quizlet and memorize flashcards containing terms like Among all of the safety measures that can and should be used to prevent electrical shock, which one is the most essential?, 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., When does electricity become hazardous to humans? Switch 3.No, because he will not be touching any grounded material when using the tool. The auger then fell across the other worker, the 24-year-old victim. Using multi-receptacle boxes designed to be. Among all of the safety measures that can and should be used to prevent electrical shock, which one is the most essential? 2. Most of the hydrides of Group 1A and Group 2A metals are ionic. 0000007427 00000 n (E) a, b, and c. 2. !DP#vr-\DM<6V-2'I5l6)Z@^m=}c3-aUOo6rr V-Y3d6HABmjD \$TQCvK*eg&|Y596#H\ 0000055319 00000 n Question 2: It's okay to use extension cords with worn insulation, as long as you are careful about it. 2.Something to transport the electrical current -- A conductor. 0000004946 00000 n trailer 1. 4.No, because he does not need to use an extension cord. Electricity for power tools was supplied from an exterior 120-volt, grounded AC receptacle located at the back of the residence. A worker was operating a " electric chisel when an electrical fault occurred in the casing of the tool, causing him to be fatally electrocuted. 2 0 obj Electrical hazards expose workers to the following: Burns: Three types; electrical, arc flash, or thermal contact. a.Your thumb. Call ________ prior to digging to be connected with your local One Call Center to have all underground lines located by the utility company. Gloves used for electrical work must be inspected and tested prior to use, and be certified every: A. 4.Damaged cover or insulation, When using electric-powered hand tools, do not overload: 0000000816 00000 n These short objective type questions with answers are very important for competitive exams as well as Board exams. 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. 0000005520 00000 n Out of several possible scenarios, the most likely was contact between the exposed wires of an extension cord and a screw that protruded from the receptacle, which had its face plate removed. OSHA: Air Monitoring & Medical Surveillance, 5 ANO - RETOMANDO ARTIGO, SUBSTANTIVO E ADJE. 0000002122 00000 n *Effects are for voltages less than about 600 volts. 2.The person's physical condition