which of the following are electrical hazards osha quizlet

0000002150 00000 n Muscular contraction and nerve damage occur; death likely. Select the correct answer and then click DONE. 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. a.Conductive objects Select the correct answer and then click DONE. Supply power for tools or equipment on a long-term basis. Freeze Continually audit cords on-site. :$#k9BPnZ{Qqe/reKy,'ZlB# The router's 3-wire power cord was spliced to a 2-wire cord and plug set which was not rated for hard service. b. ZR)!=w|; @uT C0? The small electrical current enters his body through his left leg. <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 792 612] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> 0000001646 00000 n 3. Stay at least 10 feet away from overhead power lines. 4.Circuit breakers, When inspecting power tools, look for: 4.Organs, The presence of ________ can turn you, your equipment, or insulators like wood into conductors. 0000002557 00000 n When an electric shock occurs, your muscles may: 2.Grounding 0000011060 00000 n hb``b``=p0X8n0lY0L#rK[V26h* @0H!XDl+!&FfUfo`h6l 0000068035 00000 n HWMo#7v#h>6,Z4- 3 0 obj 2.Grease 0000006893 00000 n c.40,000 volts OSHA 10 General Industry Test Answer Key WALKING. 4.On equipment that must run unattended for long periods of time, Manufacturing equipment may be grounded using a wire connected to a rod driven into the earth. 0000420887 00000 n Co-workers provided CPR, but were unable to revive the victim. 0000002479 00000 n 4.Cardiac arrest 4,600. Flexible Cord Not 3-Wire, Hard Service Variety: A worker received a fatal shock when he was cutting drywall with a metal casing router. OSHA: Air Monitoring & Medical Surveillance, 5 ANO - RETOMANDO ARTIGO, SUBSTANTIVO E ADJE. 2. )KL3C?e%Y92$,]^)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'. 0000004274 00000 n (b) The same reaction can also be classified as a redox reaction. Electricity will form a "path" or "loop". Seven employees of a masonry company were erecting a brick wall from a tubular, welded-frame scaffold approximately 24 feet high. OSHA 10 - Exit Routes, Emergency Action Plans, The Analysis and Design of Linear Circuits, Albert J. Rosa, Gregory J. Toussaint, Roland E. Thomas. -Rubber. c.Absorb any water around the area As he removed the forms, he wrapped them with a length of cable called a choker, which was to be attached to a crane. How fast would the ball be moving at the moment of release? <> Which of the following are caused by contact with electricity? A co-worker disconnected the power cord to the saw, too late to save the victim. 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. As he is working on the wiring, he receives an electrical shock that knocks him backward and causes him to fall off the ladder. b.Electrical tools %PDF-1.5 b.Rod Electrical Hazards Electrical hazards can be found in nearly every roofing work site. Identify the oxidizing and reducing agents. b.Ground Fault Critical Interrupter Becoming part of the circuit exposes you to ________, the most dangerous electrical hazard. Quiz Question 3: Power cords can be damaged by which of the following? lex has set up a mobile engine testing station in the maintenance area. 0 0000018681 00000 n b.Shut off power within five minutes of the imbalance 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. a. 1. d. 411, You are working with a 10-foot section of a conductive pipe near power lines. Study with Quizlet and memorize flashcards containing terms like Bob is asked to repair some overhead wiring, requiring the use a ladder. OSHA: Air Monitoring & Medical Surveillance, WebQuest: Biomes, Ecosystems and Habitats. stream Explosion. <>>> -Falls. 0000007741 00000 n 0000003900 00000 n Overview. Visually inspect all electrical equipment before use. a.Two-prong plug B. outdoors. OSHA Safety and Health Topics Page. If you are touching any grounded material while using a power tool 3.No, because he will not be touching any grounded material when using the tool. Question 2: It's okay to use extension cords with worn insulation, as long as you are careful about it. -Voltage= a measure of electrical force. a.Your thumb. Question 3: Employers are not required to enforce lock out/tag out practices in the workplaces. D. Communicate the hazard to the crew and subs, use signs and bar E. Both C and D Q22. 1. When it completes a circuit through the body. c.Power lines Should he use an extension cord to power it? 0000001896 00000 n He yelled for his co-workers to disconnect the power, which they did. a.20,000 volts The auger has a one-quarter horsepower motor encased in a metal housing with two handles. Is not broken, Question Text: Electrical tools should be grounded with a(n)________. OSHA Pros, LLC is an authorized provider of 360 Training, an OSHA-Accepted Provider, offering training and certification courses for NFPA 70E-Standard, and he most common shock-related injuries are: Question 1: Each year, approximately __________ workers suffer from electricity related injuries. a.311 Both the operator and the victim failed to notice that the boom had contacted a 2,400-volt overhead power line. -Grounding= a conductive connection to the earth which acts as a protective measure. 3. A 120v. 0000422244 00000 n g]+fn_m{mja_0Y w endstream endobj 189 0 obj <> endobj 190 0 obj <>stream 0000005406 00000 n As he is working on the wiring, he receives an electrical shock that knocks him backward and causes him to fall off the ladder. He may have dropped the extension cord at the site and not heard the connector break. 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 2.The person's physical condition You can classify scales for weighing objects as those that use springs and those that use standard masses to balance unknown masses. Working with electricity can be dangerous. The NEC C. Suggestions A measure of the energy of motion of the particles in a substance is its _____. Electrocution. Quiz Question 1: Which of the following is not a category of electrical burns? C. near water. 4.No, because he does not need to use an extension cord. The workers administered CPR to the victim, but to no avail. Which of the following factors determine how severe an electrical injury might be? 0000021516 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. 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+ 1476 0 obj <>stream 3.Vapor trailer <]/Prev 500768/XRefStm 1495>> startxref 0 %%EOF 222 0 obj <>stream Electrical Safety Multiple Choice Questions and Answers for competitive exams. To avoid injury or death, you must understand and recognize hazards. Frames of non-electrically driven elevator cars to which electric conductors are attached. Dirk, a 28-year-old mechanic, is performing maintenance on a piece of equipment when he is shocked. 3. 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. Be sure equipment that has been shop fabricated or altered is in compliance. 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. 0000017163 00000 n I;C`_;LV'd,|#H--e`( ')'RpAgA7O`?%68SB Explain the purpose and use of the MyPlate symbol. Which of the following are insulators of electricity? 4. a.Supply power for tools or equipment on a temporary or short-term basis. To be safe, you must think about your job and plan for hazards. Quiz Question 2: Which is acceptable when using powdered tools? Engineers, electricians, and other professionals work with electricity directly, including working on overhead lines, cable harnesses, and circuit assemblies. Remove from service any equipment with frayed cords, missing ground prongs, cracked tool casings, etc. %%EOF 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. 1452 0 obj <> endobj Potential hazards of electricity are preventable if you: Electricity must always travel in a(n) ________, ________ circuit. 1452 25 b.Not wearing insulating shoes or boots when she was handling electrical equipment Hazards are created when cords, cord connectors, receptacles, and cord- and plug connected equipment are improperly used and maintained. Reportedly, he was shocked throughout the morning, and he had replaced one of the extension cords in an effort to eliminate the shocks. q>NmnLNmb$"Iyx1bD9.~Ll. 1.Clench Regarding hand protection employers should: A. <> 1. 0000056642 00000 n 0000005716 00000 n Explain the process that prevents the poles from steadily cooling off and the tropics from heating up over time. d.Alert workers of any water in the area, GFCI is an acronym for: Overhead and buried power lines at your site are especially hazardous because they carry extremely high voltage. Unless you know otherwise, assume that overhead lines are energized. 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 0000007427 00000 n Which of the following part of you body can burn if you come in contact with electricity? 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 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. a. OSHA 29 CFR 1910, Subpart S . 3.Loss of eyesight 0000003640 00000 n -Conductor= permits the free flow of electricity. b.burns. The first worker knocked the auger off the victim, but saw that the electric cord was wrapped around the victim's thigh. c.Three-prong plug 4.Running through doorways. 0000003254 00000 n This caused him to fall from the ladder and land in a puddle of water, still holding the saw. What is the minimum clearance distance you must maintain from the power lines? Which of the following can be the result of electric shock? Question 1: Employers must ensure that every electric utilization system and all utilization equipment installed, majorly modified, or replaced after March 15, 1972, complies with the standards for electricity set by the National Fire Protection Association, which have been adopted by OSHA. The following are electrical hazards: Shock. Extension cords had poor splices, no grounds, and reversed polarity. BE SAFE! Effective means of controlling power line hazards include: If a worker has been retaliated against for using their rights, they !DP#vr-\DM<6V-2'I5l6)Z@^m=}c3-aUOo6rr V-Y3d6HABmjD $TQCvK*eg&|Y596#H\ Does the fall qualify as an electrical accident? (See NFPA 70E-2021 Article 130 and OSHA subpart S part 1910.333 (a) (1)- (2) and (c) for complete details.) % He plans to use it over a period of at least six months. 0000003715 00000 n 3.ack of ground fault protection. Is split %PDF-1.4 % 1. Hand-operated metal shifting ropes or cables of electric elevators. Ground all power supply systems, electrical circuits, and electrical equipment. Provide a safe path to earth ground for electricity. 0000005520 00000 n Noise, : ________ or heavy perspiration can cause electricity to take an unintended path. If electrical equipment is used in ways for which it is not designed, you can no longer depend on safety features built in by the manufacturer. 1.Using a fiberglass ladder when the possibility exists for contact with electricity. 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. Which of the following are conductor of electricity? Quiz Question 7: Which is not an insulator? The light fixture, which served as a ground, was known to be faulty for at least 5 months before the incident.

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