which of the following are electrical hazards osha quizlet

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. c.Three-prong plug If a worker has been retaliated against for using their rights, they 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. An employee was texturing a wall using an air compressor. 2.Loose screws Which of the following are electrical hazards? - Brainly.com 0000421920 00000 n 0000000816 00000 n True. 0000012360 00000 n 0000017163 00000 n Burns. 1.Flammable liquids Electricity must follow an uninterrupted loop from the power source to the equipment and back to the power source or ________. 4. 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. gYpV:+ The insulation on the extension cord was cut through and exposed bare, energized conductors which made contact with the ladder. Question 2: It's okay to use extension cords with worn insulation, as long as you are careful about it. Additional minimum clearance distance is required for power lines carrying over ________. A. indoors. 0000004444 00000 n NFPA 70E: Standard for Electrical Safety in the Workplace 3. Course 812 Module 7 OSHA Focus Four Hazards: Electrocution - OSHAcademy Select the correct answer and then click DONE. Flexible Cord Not 3-Wire, Hard Service Variety: A worker received a fatal shock when he was cutting drywall with a metal casing router. It's okay to use extension cords with worn insulation, as . Quiz Question 6: Which of these is not a type of Ground Fault Circuit Adapter? 4. 3.Cramp d.Ground Fault Circuit Interrupter, : Another electrical hazard that can cause injury or death in the workplace is a ________ path to ground. gYpV:+ Electrical - Overview | Occupational Safety and Health Administration 3 OSHA requires the testing of a volt meter after a voltage test on voltage above_____. 0000018681 00000 n 0000002150 00000 n d. No, because an extension cord would not provide enough power. Fire 0000005406 00000 n You should? Use only extension cords that are 3-wire type. Electric current cannot exist without an unbroken path to and from the conductor. You discover the electrical cord on a drill has been damaged and some of the cord's insulation is missing. which of the following are electrical hazards osha quizlet To avoid injury or death, you must understand and recognize hazards. The ground wire was not attached on the male end of the cord's plug. Select the correct answer and then click DONE. 12 months C. 6 months D. Never Q23. Which group would be more accurate when used in an accelerating spaceship? d.Metal, Over half of all deaths caused by electricity result from contact with ________. a. Study with Quizlet and memorize flashcards containing terms like OSHA's electrical standards are based on: A. ANSI standards B. c. No, because the electricity is needed on a long-term basis. The presence of ______ can turn you, your equipment, or insulators like wood, into conductors. 3.The length of time the body is in contact with electricity 1.When you are using electricity near water 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 floor is covered in water and she is barefoot. 0000006152 00000 n Question 3: A/an ____________ is a unit of measurement for electrical resistance. True. (D) None of the above. Apply a warning tag to any defective tool and do not use it until the problem has been corrected. 2.Yes, because he is using a portable power tool. -Falls. Electrical Safety Assessment Quiz Answers | ISHN ZR)!=w|; @uT C0? b.Match the thickness of the extension cord to the thickness of the nail gun's power cord. Test your knowledge with our electrical safety quiz below. 3. 2.Skin An examination revealed that the spring, cover plate, and part of the melamine casing were missing from the face of the female connector (the spring and some melamine fragments were found at the accident site). What is the output of the program in Exercise 17, if first = 26 and second = 8? If the electrical conductors become exposed, there is a danger of shocks, burns, or fire. c.falls. D. near other electrical equipment. 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 This caused him to fall from the ladder and land in a puddle of water, still holding the saw. B 208v. 1. Electrical Contractors Industry. -Rubber. Introduction To Osha Quiz Answers1) Which of the following activities trailer <<11AC4BACEBCA4B32A885F1120BD3A307>]>> startxref 0 %%EOF 153 0 obj <>stream Overview. startxref Question 3: If following lock out/tag out procedures, what step should be taken BEFORE you shut down the equipment? Select the correct answer and then click DONE. Equipment used in manner prescribed. 0000002733 00000 n endobj Electrical Safety Quiz - OSHA.net Frequently inspect electrical systems to insure that the path to ground is continuous. Lx*jWP# /c2)|]NXqAx>=~'[ The light fixture, which served as a ground, was known to be faulty for at least 5 months before the incident. Which of the following are conductor of electricity? b+t6W' te+.W_{8u7Dt@1c. Supply power for tools or equipment on a long-term basis. (See NFPA 70E-2021 Article 130 and OSHA subpart S part . OSHA will keep all identities confidential. B. b) Staples After the wall was poured, one driver cleaned the loading chute of his cement truck with a water hose mounted on the truck. <> Even when the power system is properly grounded, electrical equipment can instantly change from safe to hazardous because of extreme conditions and rough treatment. 0000108653 00000 n Electrocution was the second leading cause of worker deaths on construction sites in the United States in 2011. The NEC C. Suggestions <> De-energizing 2.Loose bolts Select the correct answer and then click DONE. [Power Tools]. 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. 0000008392 00000 n Dirk, a 28-year-old mechanic, is performing maintenance on a piece of equipment when he is shocked. 0000002479 00000 n 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. 2.Something to transport the electrical current -- A conductor. 0000002557 00000 n b.Ground Fault Critical Interrupter D. Communicate the hazard to the crew and subs, use signs and bar E. Both C and D Q22. Most of the hydrides of Group 1A and Group 2A metals are ionic. 1.Clench 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. Which of the following factors determine how severe an electrical injury might be? 0000003771 00000 n Using modified cords or tools, e.g., removing ground prongs, face plates, insulation, etc. Effective means of controlling power line hazards include: OSHA CONSTRUCTION FINAL EXAM Question and Answer Part 10. ly/homeo3b700 Which of the following is a resource within the. The following are electrical hazards: Shock. 1. Select the choices that accurately define the common electrical term. d) All of the above. Question 4: When a worker receives an electric shock, first aid must start within ___________ minutes. 1476 0 obj <>stream Find the volume of the parallelepiped determined by the vertices (1,1,1),(4,7,2) . Switch 0000002195 00000 n The \rule{1cm}{1pt} artery carries deoxygenated blood from the heart to the lungs. 3.Draped over equipment. 2. PDF Electrical Safety - Occupational Safety and Health Administration a.Electricity 0000012944 00000 n The victim was totally deaf in one ear and suffered diminished hearing in the other. Use non-conductive wood or fiberglass ladders when working near power lines. s\A0W+ c.The outlet. The source of the shocks -- the saw -- was not replaced. Look for overhead power lines and buried power line indicators. PDF Working Safely with Electricity - Occupational Safety and Health Which of the following are caused by contact with electricity? Identify the oxidizing and reducing agents. Electrical Safety Standards in the Workplace - NFPA 70E - Grainger KnowHow OSHA 10 General Industry Topic Exams Answer Key TOPIC EXAM 1: INTRO TO OSHA 1. b.10 feet 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. [29 CFR 1926.416(a)(1)]. . Electrical current travels through insulated ________. OSHA: Electrical Hazards Flashcards | Quizlet [. -Severe skin burns. Apparently, his hand contracted and he was "locked" to the saw. What factors determine the severity of Dirk's injuries? In which of the following workplace situations are you at risk for coming into contact with live electrical . a.related to muscle damage. When the victim reached down to connect the choker to the hoist cable, he suddenly collapsed. 2. 2. b.30,000 volts x_HSqnwmky54YLzeStJi# TZObFT*.#BQF/Q c) Age 0000007464 00000 n <>>> 2. SCENARIO: You encounter a co-worker on a residential remodeling job. Underground electrical hazards are: A. c. Inductive objects 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. If the insulation on the tool's power cord is damaged and you touch this area while grounded, the electricity will ________. 0000015549 00000 n 0000414648 00000 n 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? 1.Damaged cover or insulation 2.Using an aluminum ladder when the possibility exists for contact with electricity. Hand-operated metal shifting ropes or cables of electric elevators. 0000017336 00000 n 0000004686 00000 n 4.No, because he does not need to use an extension cord. 3. Easy to identify 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). 1.Pain A 29-year-old worker was electrocuted when he pushed a crane cable into a 7,200-volt power line. 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. stream Quiz Question 7: Which is not an insulator? Arc Flash. %%EOF 1.Missing or broken path to ground. 0000028595 00000 n c.Guaranteed Fault Circuit Interrupter 0000021516 00000 n Metal partitions, grill work, and similar metal enclosures around equipment of over 1kV between conductors. d.The body of the power tool. 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. The victim provided a path to ground and was electrocuted. d.Add more outlets. 0000420277 00000 n The small electrical current enters his body through his left leg. Additionally, the ground prong was missing and there was no GFCI protection. If you are touching any grounded material while using a power tool Match the length from job to outlet. Which of the following can be caused by exposure to an arc flash? 1.Missing 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. Select the correct answer and then click DONE. The victim collapsed into the lake and sank 4-1/2 feet to the bottom. d) All of the above. Gloves used for electrical work must be inspected and tested prior to use, and be certified every: A. vpfuI)],s 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$]r**-I!o66PqK.z "*D Potential hazards of electricity are preventable if you: Electricity must always travel in a(n) ________, ________ circuit. 2.Grounding Electrical Safety Quiz Electrical safety is an important topic that you and your workers need to know about. %PDF-1.4 % 0000013999 00000 n List the four main types of electrical injuries, Using the illustration, select the answer that matches the picture, Identify the illustration by selecting the appropriate answer. 2 0 obj stream 182 0 obj <> endobj xref 182 41 0000000016 00000 n 10,000 milliamps (10 amps) Cardiac arrest and severe burns occur. She finds several available in the shop. The normal wear and tear on extension and flexible cords at your site can loosen or expose wires, creating hazardous conditions. Short Confined spaces Machinery-related hazards (lockout/tagout, boiler safety, forklifts, etc.) Select the correct answer and then click DONE. qnde>9!.,T2 :hw5 #OaPxkx=y7]J-yv*'H$jmVCq$ sx:R2$9SY+D!!LJ:n+.\#Hu~2VI O? Which of these can be used as insulating live-line tools for electrical protection. xb```VVF A10p,``Pp`hhdpn``r`L:[ I,aZ4Knj21 `ny; Ge7t@OrMx)"cx&e:[~J%aUJ\*t 2.Loss of muscle control 4.Combustible dust, Fundamentals of Engineering Economic Analysis, David Besanko, Mark Shanley, Scott Schaefer. 1.A source of electrical current to flow. 4.Must be replaced, Always use a GFCI: 0000000016 00000 n When it completes a circuit through the body. electrical safety part 1 Flashcards | Quizlet Used across walkways. 4. 0000005716 00000 n As the victim climbed down a makeshift ladder, he shifted the saw from his right hand to his left, and was shocked. Electrical hazards like frayed cords, missing ground pins, improper wiring or the harm that these hazards pose. When he grasped the handle of the bucket to pull it down, the crane cable came into contact with the overhead line. You need to evaluate the situation you are in and assess your . The victim signaled the operator of the crane to extend the boom and lower the hoist cable. Only after a rescue squad arrived about 4 minutes later did anyone realize that the crane was in contact with a power line -- all those present had assumed that the victim had suffered a heart attack. The power switch on the welder was already in the "on" position, and the female end of the extension cord, which was spring loaded, had apparently been dropped and broken. =EAn`u!d, |\~Y>ZF( dnLN\2vP6 >sSjgh2:Lmqx#a[G2{h$zW]_:@Lvr)2T:R-/ `&~O4j)>1P*M 5>F:1B.g!AR Question 4: Which of the following is a type of burn caused by electrical hazards? 0000007116 00000 n 1. When does electricity become hazardous to humans? trailer <]/Prev 500768/XRefStm 1495>> startxref 0 %%EOF 222 0 obj <>stream Becoming part of the circuit exposes you to ________, the most dangerous electrical hazard. Select the correct answer and then click DONE. Electrical Safety Multiple Choice Questions(MCQs) & Answers - gkseries 1. As he is working on the wiring, he receives an electrical shock that knocks him backward and causes him to fall off the ladder. Outlets a.20,000 volts Best Practices with Power Lines 1. a) Door or window edges The factors that determine the severity of an electrical injury include: When selecting the right extension cord, a good rule of thumb is to match the thickness of the extension cord to the thickness of: -Grounding= a conductive connection to the earth which acts as a protective measure. Examples of Equipment That Can Contact Power Lines. Use only cords, connection devices, and fittings that are equipped with strain relief. 3.Tears 1. A 120v. Select the correct answer and then click DONE. Select the correct answer and then click DONE. Electrical Safety Multiple Choice Questions and Answers for competitive exams. lex has set up a mobile engine testing station in the maintenance area. Is split Select the correct answer and then click DONE. uVNSF!UTRQ91uR,6@hCH}]GAlaPh)NeT$iQ89S9|?4wahU ltz9 PH[$I&VX9WG%K~1{u8M:D"+HLEy 3@NR^z!rB^?RyOj;'Lof. a.Standing in water b.Electrical tools b. 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. OSHA: Common Electrical Hazards Flashcards | Quizlet 1.The humidity of the environment B. outdoors. [, Do not modify cords or use them incorrectly. 0000005520 00000 n 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. OSHA: Air Monitoring & Medical Surveillance, 5 ANO - RETOMANDO ARTIGO, SUBSTANTIVO E ADJE. 3.No, because he will not be touching any grounded material when using the tool. You can classify scales for weighing objects as those that use springs and those that use standard masses to balance unknown masses. Exercise their rights under the law without retaliation, including reporting an injury or raising health and safety concerns with their employer or OSHA. 0000421627 00000 n OSHA 10 - Exit Routes, Emergency Action Plans, The Analysis and Design of Linear Circuits, Albert J. Rosa, Gregory J. Toussaint, Roland E. Thomas. c.40,000 volts 0000003715 00000 n 1 0 obj 1. Quiz Question 4: Which is a preventive measure to prevent hazards while working with power lines? The scaffold had been constructed only 21 horizontal inches across from a 7,620-volt power line. a.Yes, as it is a mobile engine testing station. Question 2: Which of the following are ways employers must protect their employees on the workplace? -Wood. Should he use an extension cord to power it? 0000002876 00000 n a. Do not remove ground prongs from cord- and plug-connected equipment or extension cords. Electricity to the auger was supplied by a series of 50-foot extension cords running to an adjacent property. 4.Dirt build-up, Use only approved and authorized power tools in areas where the following hazards may be present: Quiz Question 10: Ground-fault circuit interrupters must be used for all of the following except? 0000007427 00000 n Water 0000001861 00000 n 0000005050 00000 n The first worker knocked the auger off the victim, but saw that the electric cord was wrapped around the victim's thigh. 0000110659 00000 n b.Yes, as it would be too expensive to install more permanent wiring and receptacles. 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. Use the terms (freezing, gas, liquid, physical changes, solubility, solution, temperature, volume) to complete the sentence. 0000420564 00000 n Be sure equipment that has been shop fabricated or altered is in compliance. 4.The amount of current, An electrical burn may affect: A co-worker disconnected the power cord to the saw, too late to save the victim. Explain the purpose and use of the MyPlate symbol. 4. Electrical Hazards - SSOE Group 0000002386 00000 n 0000002403 00000 n Select the correct answer and then click DONE. @*@;z}IAH@3MsgU1Dnf@agLahpCn@&b|-^;b0k*!3VYy,jy%( Z%|\Jg"dRp-Wbz3QJS%k9p_WtZ 0000068035 00000 n b.Rod endobj Besides personal bodily injury, what other electrical hazards can be found in the workplace? 3.Loose nuts 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. No GFCI's were used. Electricity for power tools was supplied from an exterior 120-volt, grounded AC receptacle located at the back of the residence. Select the correct answer and then click on DONE. OSHA requires the testing of a volt meter after a voltage test on voltage above_____. Continually audit cords on-site. 0000427811 00000 n 128 0 obj <> endobj xref 128 26 0000000016 00000 n Get All Answers to OSHA 30 Construction Final Exam. %PDF-1.5 3. 0000006893 00000 n . The pole had not been inspected by the city and was not in compliance with code requirements (it was not grounded). 2.Placed along a wall. The workers had removed their shirts and were sweating. 0000003603 00000 n PDF OSHA Safety - Electrical Safety - Red Vector C 277v. eTool : Construction - Electrical Incidents | Occupational Safety and <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> A worker was removing a metal antenna when it made electrical contact with a 7200-volt power transmission line. 0000420887 00000 n Provide a safe path to earth ground for electricity. d. Power outlets, ________ are anything that can transmit electrical current. 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 endobj Additionally, the ground prongs were missing from the two cords. 2.Flooding Draw a line from the item on the left that corresponds to the match on the right. 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. 0000022637 00000 n Which of the following injuries can occur when muscles flex or twitch from an electrical shock? Using equipment outdoors that is labeled for use only in dry, indoor locations. Engineers, electricians, and other professionals work with electricity directly, including working on overhead lines, cable harnesses, and circuit assemblies. %PDF-1.4 % 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. d.Constructive objects, Select all answers that apply to the following statement and then click DONE. 0000013716 00000 n The most dangerous place to use electrical equipment is? Intentionally creating a low-resistance path that connects to the earth. a.Conductive objects Examples Of Electrical Hazards. 0000001908 00000 n 0000057373 00000 n (A) Shotgun sticks. Does the fall qualify as an electrical accident? d. 20 feet. 0000024814 00000 n Potential hazards of electricity are preventable if you do which of the following listed below? c. Match the color of the tool to the color of the extension cord. -If current passes through the body near the heart or brain. 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 router's 3-wire power cord was spliced to a 2-wire cord and plug set which was not rated for hard service. H. The modification of the plug was not an intended use or prescribed by the manufacturer. How will she choose the correct cord? Draw a line from the item on the left that corresponds to the match on the right. Using a dry wood ladder when the possibility exists for contact with electricity. 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 29 CFR 1910, Subpart S . 0000004274 00000 n What is the minimum clearance distance you must maintain from the power lines? b.Shut off power within five minutes of the imbalance The accident site was wet; also, humidity was high and the victim was sweating. ( 4.Circuit breakers, When inspecting power tools, look for: 1 0 obj Is not broken, Question Text: Electrical tools should be grounded with a(n)________. 1. !DP#vr-\DM<6V-2'I5l6)Z@^m=}c3-aUOo6rr V-Y3d6HABmjD $TQCvK*eg&|Y596#H\ h|UnH}+i-. 2 0 obj OSHA 30 Construction Final Test Answer Key - Studylib c.Gasoline Working with electricity can be dangerous. As she is adding in the chemicals, her hand touches the motor and it becomes energized. a.Shut off power within a fraction of a second 1,[-c|"&u[Fu>wjte8j:xRk )"m_!6awT J,byp?fRBf?p|b3/Um\7"|+@5vvWAa5J^y*q,l b)Ftt4 :4,-J`! When current travels through your body - Definition of electric shock. (See NFPA 70E-2021 Article 130 and OSHA subpart S part 1910.333 (a) (1)- (2) and (c) for complete details.) The ________ keeps the electricity on its intended path through the conductor. Electrical Hazards Electrical hazards can be found in nearly every roofing work site. 5. He plans to use it over a period of at least six months. Quiz Question 3: Power cords can be damaged by which of the following? (C) Hot sticks. 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.

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