which of the following are electrical hazards osha quizlet

Isolating, Power lines may be located underground. c. No, because the electricity is needed on a long-term basis. 3. and more. 0000004946 00000 n 3 0 obj 4.Good condition of moveable parts, Items that could encourage overheating and cause tools to malfunction or start a fire include: Gloves used for electrical work must be inspected and tested prior to use, and be certified every: A. 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: She has an older drill with a steel housing and a 3-prong plug. a.Shut off power within a fraction of a second Which of the following can be caused by exposure to an arc flash? Electrical Hazards Electrical hazards can be found in nearly every roofing work site. Protection is lost because it will not trip when the system's load has been exceeded. What do tripped circuit breakers and blown fuses indicate? 3. 0000013716 00000 n When selecting the right extension cord, a good rule of thumb is to match the thickness of the extension cord to the thickness of: 0000002150 00000 n 0000024814 00000 n 0000006893 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? [, Do not modify cords or use them incorrectly. Does the fall qualify as an electrical accident? OSHA requires the testing of a volt meter after a voltage test on voltage above_____. OSHA 29 CFR 1910, Subpart S . a.Conductive objects 4.Broken. Besides personal bodily injury, what other electrical hazards can be found in the workplace? 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 Safety Electrical One Line Diagram should be used to _____ all sources of electrical energy. (3,2,1), (5,4,3). xYmo -ER/&@[D,_! Question 3: If following lock out/tag out procedures, what step should be taken BEFORE you shut down the equipment? 0000420887 00000 n . Underground electrical hazards are: A. 0000004884 00000 n Electricity to the auger was supplied by a series of 50-foot extension cords running to an adjacent property. 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+ SCENARIO: You encounter a co-worker on a residential remodeling job. 0000001116 00000 n 0000002386 00000 n In 2017, there were over ______________ electrical related violations cited by OSHA in the workplace. The victim signaled the operator of the crane to extend the boom and lower the hoist cable. 0000108920 00000 n View Best Practices with Power Lines Quiz OSHA 30.docx from OSHA 30 at Columbia Southern University. Explain the process that prevents the poles from steadily cooling off and the tropics from heating up over time. Easy to identify 2.Yes, because he is using a portable power tool. b.Yes, because Bob was on . <> Electrical Safety Multiple Choice Questions and Answers for competitive exams. 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: 4.Damaged cover or insulation, When using electric-powered hand tools, do not overload: Other protective measures include guarding or insulating the lines. Is not broken, Question Text: Electrical tools should be grounded with a(n)________. Select the correct answer and then click DONE. 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. Select the correct answer and then click DONE. 0000002385 00000 n A 120v. When current travels through your body - Definition of electric shock. In which of the following workplace situations are you at risk for coming into contact with live electrical . using a 30-amp breaker in a system with 15- or 20-amp receptacles. d. heart attacks. Select the correct answer and then click DONE. Select the correct answer and then click DONE. [Power Tools]. 0000004274 00000 n Quiz Question 1: Which of the following is not a category of electrical burns? 1.Damaged cover or insulation 3.When you are using portable power tools b.burns. Use only cords, connection devices, and fittings that are equipped with strain relief. 0000003715 00000 n 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. 0000005716 00000 n An employee was texturing a wall using an air compressor. 3.Vapor 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. 0000004444 00000 n . Then answer the questions below. d.A power tool, A GFCI is designed to: Study with Quizlet and memorize flashcards containing terms like OSHA's electrical standards are based on: A. ANSI standards B. The ________ keeps the electricity on its intended path through the conductor. 128 0 obj <> endobj xref 128 26 0000000016 00000 n Others, such as office workers and sales people, work with electricity indirectly and may also be exposed to electrical hazards. 1.A source of electrical current to flow. Switch endobj specifically addresses electrical protective devices. 2 0 obj b. OSHA 29 CFR 1910, Subpart P . You should? Carly needs to use an extension cord with her corded nail gun. Using the wrong light bulb wattage; Overloading power strips and outlets; Unprotected electrical outlets; Poor wiring; Defective electrical wires b.Rod 0000089142 00000 n a.related to muscle damage. When inspecting extension cords, look for: Select the correct answer and then click DONE. 1. (A) Shotgun sticks. Question 4: When a worker receives an electric shock, first aid must start within ___________ minutes. % 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. 2.Using an aluminum ladder when the possibility exists for contact with electricity. xb```VVF A10p,``Pp`hhdpn``r`L:[ I,aZ4Knj21 `ny; Ge7t@OrMx)"cx&e:[~J%aUJ\*t 1. 2.Loose bolts d) All of the above. Quiz Question 3: Power cords can be damaged by which of the following? Bob is asked to repair some overhead wiring, requiring the use a ladder. 1. Electrical Safety Quiz Electrical safety is an important topic that you and your workers need to know about. The individual's perspiration-soaked clothing/body contacted bare exposed conductors on one of the cords, causing an electrocution. 0000000816 00000 n 1.Missing Among all of the safety measures that can and should be used to prevent electrical shock, which one is the most essential? Regarding hand protection employers should: A. If the electrical conductors become exposed, there is a danger of shocks, burns, or fire. 2.Loss of muscle control Additional minimum clearance distance is required for power lines carrying over ________. If the insulation on the tool's power cord is damaged and you touch this area while grounded, the electricity will ________. 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 factors that determine the severity of an electrical injury include: 2.Placed along a wall. Take any defective equipment out of service. c.Touching the motor d.Add more outlets. uVNSF!UTRQ91uR,6@hCH}]GAlaPh)NeT$iQ89S9|?4wahU ltz9 PH[$I&VX9WG%K~1{u8M:D"+HLEy 3@NR^z!rB^?RyOj;'Lof. The workers had removed their shirts and were sweating. 1452 0 obj <> endobj Since the outlet at the adjacent property had no socket for a ground prong, the extension cords were plugged into the outlet using an adapter, but the ground wire of the adapter was not grounded. 0000028595 00000 n Which of the following are caused by contact with electricity? Additionally, the ground prong was missing and there was no GFCI protection. qnde>9!.,T2 :hw5 #OaPxkx=y7]J-yv*'H$jmVCq$ sx:R2$9SY+D!!LJ:n+.\#Hu~2VI O? View Answer Answer: 600v 4 . After the wall was poured, one driver cleaned the loading chute of his cement truck with a water hose mounted on the truck. The length of time the body is in the circuit, in contact with electricity - Factor determining the severity of an electrical . c.Gasoline Electrocution. De-energizing 0000068035 00000 n b.Shut off power within five minutes of the imbalance This may damage your equipment and cause employee injuries. Muscular contraction and nerve damage occur; death likely. Use only extension cords that are marked with a designation code for hard or extra-hard usage. 0000002876 00000 n a.Ground Fault Circuit Insulator Which of the following can be the result of electric shock? Burns. 0000002195 00000 n 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. 0000003254 00000 n Ground all power supply systems, electrical circuits, and electrical equipment. 0000012360 00000 n H. 0000420277 00000 n Dust The NEC C. Suggestions Examples Of Electrical Hazards. When does electricity become hazardous to humans? 0 Use non-conductive wood or fiberglass ladders when working near power lines. 3.Something that causes current to flow through the . What was Latoya's first mistake? 1.Is firmly connected a.Yes, as it is a mobile engine testing station. endobj Select the choices that accurately define the common electrical term. c.Wood Ground metal parts of the following non-electrical equipment, as specified by the OSHA standard [, Frames and tracks of electrically operated. Improper Use of Extension and Flexible Cords. 0000001672 00000 n 0000001731 00000 n d. No, because an extension cord would not provide enough power. 4. |tYny@YE>LkNj4-czZf"Usw>j\sv3fn},>},KeA s The accident site was wet; also, humidity was high and the victim was sweating. Frames of non-electrically driven elevator cars to which electric conductors are attached. 2. The auger then fell across the other worker, the 24-year-old victim. 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. d.50,000 volts. d.Constructive objects, Select all answers that apply to the following statement and then click DONE. 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. The source of the shocks -- the saw -- was not replaced. Does the fall qualify as an electrical accident? 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 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. Computers Best practices with power lines include: Electrical safety requirements necessary for the practical safeguarding of employees in the workplace. 0000427811 00000 n OSHA will keep all identities confidential. trailer <]/Prev 500768/XRefStm 1495>> startxref 0 %%EOF 222 0 obj <>stream Question 1: Each year, approximately __________ workers suffer from electricity related injuries. 0000419562 00000 n How will she choose the correct cord? Quiz Question 6: Which of these is not a type of Ground Fault Circuit Adapter? Electric current cannot exist without an unbroken path to and from the conductor. 0000420564 00000 n Using multi-receptacle boxes designed to be. What is the most common, non-fatal, electrical shock-related injury? 0000414648 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). 3.Loss of eyesight A fault occurred, and with no grounding and no GFCI protection, the worker was electrocuted. 0000000016 00000 n (D) None of the above. b+t6W' te+.W_{8u7Dt@1c. Seven employees of a masonry company were erecting a brick wall from a tubular, welded-frame scaffold approximately 24 feet high. Identify the oxidizing and reducing agents. b.Ground Fault Critical Interrupter 2. 0000421920 00000 n The most dangerous place to use electrical equipment is? endobj 0000000816 00000 n Using tools and equipment that can contact power lines increases the risk. 5>vB35Plm$\4{U[lU`t~.vJGmFO^@+ cGPzNY*oS(m%q{Agp Arc Flash. Metal partitions, grill work, and similar metal enclosures around equipment of over 1kV between conductors. g]+fn_m{mja_0Y w endstream endobj 189 0 obj <> endobj 190 0 obj <>stream 0000003413 00000 n 0000010155 00000 n 2 0 obj 0000006152 00000 n C. near water. Determine duration, frequency, degree of exposure to hazards and physical stress. 0000017336 00000 n The normal wear and tear on extension and flexible cords at your site can loosen or expose wires, creating hazardous conditions. Be sure equipment that has been shop fabricated or altered is in compliance. 182 0 obj <> endobj xref 182 41 0000000016 00000 n D. near other electrical equipment. 0000004965 00000 n 1.Fingernails 2.Is working properly 3.Tears 2.Grease Wearing a baseball cap Ajay needs to use a dewatering pump to drain standing water on a construction site. Electricity to operate portable power tools was supplied by a temporary service pole 50 feet away. d. Match the outlet prongs to the extension cord. Power was supplied through two extension cords from a nearby residence. Electrical current travels through insulated ________. You discover the electrical cord on a drill has been damaged and some of the cord's insulation is missing. She finds several available in the shop. HWMo#7v#h>6,Z4- OSHA: Air Monitoring & Medical Surveillance, WebQuest: Biomes, Ecosystems and Habitats. 0000006866 00000 n Contact utilities for buried power line locations. Hazards are created when cords, cord connectors, receptacles, and cord- and plug connected equipment are improperly used and maintained. <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> -If current passes through the body near the heart or brain. (E) a, b, and c. 2. Select the correct answer and then click DONE. 0000004921 00000 n OSHA 29 CFR 1910.147 . 3. D. Communicate the hazard to the crew and subs, use signs and bar E. Both C and D Q22. The ground wire was not attached on the male end of the cord's plug. 2.Loose screws d.Water, Other electrical hazards in the workplace include: Which of the following are insulators of electricity? A) 120v . Is not painted over 0000004273 00000 n He may have dropped the extension cord at the site and not heard the connector break. Effective means of controlling power line hazards include: Attaching ungrounded, two-prong adapter plugs to three-prong cords and tools. 0000004208 00000 n (a) Describe the reaction between the hydride ion and water in terms of a Bronsted acid-base reaction. The victim provided a path to ground and was electrocuted. . 4.Circuit breakers, When inspecting power tools, look for: %PDF-1.5 How fast would the ball be moving at the moment of release? 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. 0000001861 00000 n Provide a safe path to earth ground for electricity. Select the correct answer and then click DONE. Many workers are unaware of the potential electrical hazards present in their work environment, which makes them more vulnerable to the danger of electrocution. vpfuI)],s Quiz Question 5: A/an ___________ is a unit of measurement for electrical resistance. Which of the following injuries can occur when muscles flex or twitch from an electrical shock? 0000001646 00000 n A 20-year-old bricklayer standing on the work platform in contact with the main scaffold was electrocuted. Extension cords may become a trip hazard when: The presence of ______ can turn you, your equipment, or insulators like wood, into conductors. It's okay to use extension cords with worn insulation, as . Call ________ prior to digging to be connected with your local One Call Center to have all underground lines located by the utility company. b.Metal He plans to use it over a period of at least six months. _5JKy. ( 2.The person's physical condition b.30,000 volts <> 0000001908 00000 n a.20,000 volts Which one of these methods MOST effectively protects machines, tools, and operators against damage from electrical current? Remove from service any equipment with frayed cords, missing ground prongs, cracked tool casings, etc. Select the correct answer and then click DONE. 0000001604 00000 n Explosion a.Supply power for tools or equipment on a temporary or short-term basis. The contact lasts for 5 seconds before someone is able to shut off the power. 3.The length of time the body is in contact with electricity (See NFPA 70E-2021 Article 130 and OSHA subpart S part 1910.333 (a) (1)- (2) and (c) for complete details.) Is the west coast of Africa a plate boundary? The following are electrical hazards: Shock. 0000007741 00000 n I;C`_;LV'd,|#H--e`( ')'RpAgA7O`?%68SB OSHA Pros, LLC is an authorized provider of 360 Training, an OSHA-Accepted Provider, offering training and certification courses for NFPA 70E-Standard, and

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