The victim was part of a crew that was constructing a concrete wall. OSHA: Air Monitoring & Medical Surveillance, 5 ANO - RETOMANDO ARTIGO, SUBSTANTIVO E ADJE. When does electricity become hazardous to humans? <> How fast would the ball be moving at the moment of release? Post warning signs. Electrical hazards are life threatening incidents that could happen due to electricity. 0000004921 00000 n 0000005632 00000 n Find the volume of the parallelepiped determined by the vertices (1,1,1),(4,7,2) . Extension cords may become a trip hazard when: How will she choose the correct cord? 0000007741 00000 n Used across walkways. (See NFPA 70E-2021 Article 130 and OSHA subpart S part . PDF Name: Date: Test Electrical Safety Quiz SELECT THE BEST ANSWER. xb```VVF A10p,``Pp`hhdpn``r`L:[ I,aZ4Knj21 `ny; Ge7t@OrMx)"cx&e:[~J%aUJ\*t Electrical Safety Assessment Quiz Answers | ISHN Explosion. 3. 3.The length of time the body is in contact with electricity Select the correct answer and then click DONE. True. 1.Extension cords Electricity becomes hazardous when it takes an unintended path to complete the ________. [Flexible Cords] Cords that are not 3-wire type, not designed for hard-usage, or that have been modified, increase your risk of contacting electrical current. Extension cords are used to: When he grasped the handle of the bucket to pull it down, the crane cable came into contact with the overhead line. Which one of these methods MOST effectively protects machines, tools, and operators against damage from electrical current? Seven employees of a masonry company were erecting a brick wall from a tubular, welded-frame scaffold approximately 24 feet high. The accident site was wet; also, humidity was high and the victim was sweating. a.Ground Fault Circuit Insulator To be safe, you must think about your job and plan for hazards. 5.Twitch, Electrical shock may result in: Question 1: Which of the following is a danger of electricity? 3.Something that causes current to flow through the . d.The body of the power tool. Additionally, the ground prongs were missing from the two cords. As she is adding in the chemicals, her hand touches the motor and it becomes energized. OSHA: Common Electrical Hazards Flashcards | Quizlet Best Practices with Power Lines Quiz OSHA 30 - Best Study with Quizlet and memorize flashcards containing terms like Bob is asked to repair some overhead wiring, requiring the use a ladder. Remove from service any equipment with frayed cords, missing ground prongs, cracked tool casings, etc. 2 0 obj When the victim reached down to connect the choker to the hoist cable, he suddenly collapsed. a) Ensure overhead power line safety You should? 0000001116 00000 n HWMo#7v#h>6,Z4- Others, such as office workers and sales people, work with electricity indirectly and may also be exposed to electrical hazards. 0000001814 00000 n (C) Hot sticks. The first worker knocked the auger off the victim, but saw that the electric cord was wrapped around the victim's thigh. Additional minimum clearance distance is required for power lines carrying over ________. Explain the purpose and use of the MyPlate symbol. 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. d.Metal, Over half of all deaths caused by electricity result from contact with ________. 0000007427 00000 n d.Alert workers of any water in the area, GFCI is an acronym for: What is the output of the program in Exercise 17, if first = 26 and second = 8? c.A measurement of electricity %PDF-1.4 % Should Ajay use a GFCI? 0000001672 00000 n Use only cords, connection devices, and fittings that are equipped with strain relief. Freeze Which of the following are insulators of electricity? 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. 3.No, because he will not be touching any grounded material when using the tool. Noise, : ________ or heavy perspiration can cause electricity to take an unintended path. Use only extension cords that are marked with a designation code for hard or extra-hard usage. OSHA 30 - Module 12: Electrical Safety Flashcards | Quizlet 1.Flammable liquids 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. d. No, because an extension cord would not provide enough power. endobj Match the length from job to outlet. a.Two-prong plug Test your knowledge with our electrical safety quiz below. The scaffold had been constructed only 21 horizontal inches across from a 7,620-volt power line. Select the correct answer and then click DONE. -If current passes through the body near the heart or brain. Electricity to the auger was supplied by a series of 50-foot extension cords running to an adjacent property. Select the correct answer and then click DONE. OSHA 30 - Quiz 3 - Electrocution Hazards Flashcards | Quizlet 0000056642 00000 n 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. 4. 2.The person's physical condition NFPA 70E: Standard for Electrical Safety in the Workplace 1. 4,600. hazard or that their employer is not following OSHA's rules. trailer <]/Prev 500768/XRefStm 1495>> startxref 0 %%EOF 222 0 obj <>stream 0000012944 00000 n One handle has a deadman's switch. A) Identify; Castigate; C) Evaluate; D) Modify; 3. PDF OSHA Safety - Electrical Safety - Red Vector 1.Missing or broken path to ground. A 20-year-old bricklayer standing on the work platform in contact with the main scaffold was electrocuted. -Rubber. Electricity to operate portable power tools was supplied by a temporary service pole 50 feet away. 0000002403 00000 n Quiz Question 3: Power cords can be damaged by which of the following? 3.Needs to be reset 0000000816 00000 n a.20,000 volts Remove cords from receptacles by pulling on the plugs, not the cords. Using circuit breakers or fuses with the wrong rating for over-current protection, e.g. Quiz Question 10: Ground-fault circuit interrupters must be used for all of the following except? Extension cords had poor splices, no grounds, and reversed polarity. The insulation on the extension cord was cut through and exposed bare, energized conductors which made contact with the ladder. 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. 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) Age Reportedly, he was shocked throughout the morning, and he had replaced one of the extension cords in an effort to eliminate the shocks. [Power Tools]. (E) a, b, and c. 2. c.Absorb any water around the area 0000002150 00000 n d.A power tool, A GFCI is designed to: When it completes a circuit through the body. Switch A) 120v . % 0000003715 00000 n 15,000 milliamps (15 amps) Lowest overcurrent at which a typical fuse or circuit breaker opens a circuit! 0000001646 00000 n Regarding hand protection employers should: A. PDF ODULE 1 INTRODUCTION TO E SAFETY - Occupational Safety and Health The victim was totally deaf in one ear and suffered diminished hearing in the other. b. As he is working on the wiring, he receives an electrical shock that knocks him backward and causes him to fall off the ladder. Isolating, Power lines may be located underground. 5. d) All of the above. Electrical Safety Quiz Electrical safety is an important topic that you and your workers need to know about. 0000004884 00000 n b. Deductive objects PDF C. Which group would be more accurate when used in an accelerating spaceship? 3.ack of ground fault protection. Electricity for power tools was supplied from an exterior 120-volt, grounded AC receptacle located at the back of the residence. Of the following choices, which are frequent electrical hazards <> OSHA will keep all identities confidential. a) Door or window edges using a 30-amp breaker in a system with 15- or 20-amp receptacles. Using tools and equipment that can contact power lines increases the risk. 3. 2 0 obj B. outdoors. Dirk, a 28-year-old mechanic, is performing maintenance on a piece of equipment when he is shocked. 0000420887 00000 n Select the correct answer and then click DONE. 3 0 obj <>>> 0000003603 00000 n 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. 0000001896 00000 n lex has set up a mobile engine testing station in the maintenance area. (a) Describe the reaction between the hydride ion and water in terms of a Bronsted acid-base reaction. OSHA 30 Construction Final Test Answer Key - Studylib One worker, holding the deadman's switch, received a shock from a ground fault in the auger and was knocked back from the machine. 21 Examples Of Electrical Hazards - HSEWatch I;C`_;LV'd,|#H--e`( ')'RpAgA7O`?%68SB 0000110659 00000 n which of the following are electrical hazards osha quizlet 1. You discover the electrical cord on a drill has been damaged and some of the cord's insulation is missing. Frequently inspect electrical systems to insure that the path to ground is continuous. After the wall was poured, one driver cleaned the loading chute of his cement truck with a water hose mounted on the truck. Muscular contraction and nerve damage occur; death likely. Quiz: Electrical Hazards. OSHA 29 CFR 1910, Subpart S . xref 0000108653 00000 n Using multi-receptacle boxes designed to be. 4.Broken. 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. 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. 4.Good condition of moveable parts, Items that could encourage overheating and cause tools to malfunction or start a fire include: 2.Is working properly In addition to contact with power lines, the top electrical hazards include: The following references aid in recognizing hazards associated with electrical work. RZyd 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. qnde>9!.,T2 :hw5 #OaPxkx=y7]J-yv*'H$jmVCq$ sx:R2$9SY+D!!LJ:n+.\#Hu~2VI O? Use only extension cords that are 3-wire type. CCOHS: Electrical Safety - Basic Information c.falls. Fatal electrocution is the main risk, but burns and falls from elevations are also hazards. Potential hazards of electricity are preventable if you do which of the following listed below? Engineers, electricians, and other professionals work with electricity directly, including working on overhead lines, cable harnesses, and circuit assemblies. 182 0 obj <> endobj xref 182 41 0000000016 00000 n NFPA 70E defines those special circumstances and sets rigid electrical safety limits on voltage exposures, work zone boundary requirements and necessary personal protective equipment (PPE). (b) The same reaction can also be classified as a redox reaction. . -Conductor= permits the free flow of electricity. trailer 0000008392 00000 n 0000007694 00000 n 0000002876 00000 n Even when the power system is properly grounded, electrical equipment can instantly change from safe to hazardous because of extreme conditions and rough treatment. =EAn`u!d, |\~Y>ZF( dnLN\2vP6 >sSjgh2:Lmqx#a[G2{h$zW]_:@Lvr)2T:R-/ `&~O4j)>1P*M 5>F:1B.g!AR As he removed the forms, he wrapped them with a length of cable called a choker, which was to be attached to a crane. Select the correct answer and then click DONE. The NEC C. Suggestions c.15 feet The most dangerous place to use electrical equipment is? eTool : Construction - Electrical Incidents | Occupational Safety and Becoming part of the circuit exposes you to ________, the most dangerous electrical hazard. Metal partitions, grill work, and similar metal enclosures around equipment of over 1kV between conductors. (D) None of the above. Protection is lost because it will not trip when the system's load has been exceeded. OSHA: How Electricity Works Flashcards | Quizlet C. near water. 2.Loss of muscle control 0000421920 00000 n b.burns. 0000414648 00000 n Question 1: Each year, approximately __________ workers suffer from electricity related injuries. c.Power lines 4.The amount of current, An electrical burn may affect: 0000011060 00000 n b.10 feet Ground all power supply systems, electrical circuits, and electrical equipment. 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. Lockout/tagout procedures. 0000012360 00000 n 4.Running through doorways. (A) Shotgun sticks. 0000015549 00000 n She finds several available in the shop. The presence of ______ can turn you, your equipment, or insulators like wood, into conductors. Select the choices that accurately define the common electrical term. Select the correct answer and then click DONE. Select the correct answer and then click DONE. Study with Quizlet and memorize flashcards containing terms like OSHA's electrical standards are based on: A. ANSI standards B. 1.A source of electrical current to flow. 4. 2. -Glass. Does the fall qualify as an electrical accident? 2.Loose screws 3 OSHA requires the testing of a volt meter after a voltage test on voltage above_____. Power was supplied through two extension cords from a nearby residence. 0000022637 00000 n Using modified cords or tools, e.g., removing ground prongs, face plates, insulation, etc. 1.Is firmly connected Quiz Question 7: Which is not an insulator? Overview. 4.No, because he does not need to use an extension cord. Select the correct answer and then click DONE. Which of the following factors determine how severe an electrical injury might be? OSHA 10 - Electrical Flashcards | Quizlet 3. a.Shut off power within a fraction of a second 0000002733 00000 n a.Conductive objects 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. Select the correct answer and then click DONE. xYmo -ER/&@[D,_! Quiz Question 1: Which of the following is not a category of electrical burns? 30 days B. Select the correct answer and then click DONE. 4.Cardiac arrest 0000005734 00000 n Using cords or tools with worn insulation or exposed wires. Visually inspect all electrical equipment before use. 1.Clench 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. Both could have prevented the accident from occuring. Use non-conductive wood or fiberglass ladders when working near power lines. Flexible Cord Not 3-Wire, Hard Service Variety: A worker received a fatal shock when he was cutting drywall with a metal casing router. Question 3: If following lock out/tag out procedures, what step should be taken BEFORE you shut down the equipment? As he is working on the wiring, he receives an electrical shock that knocks him backward and causes him to fall off the ladder. Yes, because he will be using electricity near water. endobj 1.Missing When used on the moon? Underground electrical hazards are: A. 2.Grease OSHA: Air Monitoring & Medical Surveillance, WebQuest: Biomes, Ecosystems and Habitats. 0000005042 00000 n 0000004965 00000 n uVNSF!UTRQ91uR,6@hCH}]GAlaPh)NeT$iQ89S9|?4wahU ltz9 PH[$I&VX9WG%K~1{u8M:D"+HLEy 3@NR^z!rB^?RyOj;'Lof. d.Adapter, What is a GFCI? 0000028595 00000 n Cardiac arrest or death - A result of electrical shock. Contact utilities for buried power line locations. 1. Death. What is the primary purpose of properly grounding equipment? 1.Pain hb``b``=p0X8n0lY0L#rK[V26h* @0H!XDl+!&FfUfo`h6l 3.Loose nuts [. and more. The factors that determine the severity of an electrical injury include: 0000005406 00000 n Which of the following are electrical hazards? - Brainly.com %%EOF He plans to use it over a period of at least six months. 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. 1.When you are using electricity near water 0000006152 00000 n Be sure equipment that has been shop fabricated or altered is in compliance. 3.Maintaining a safe distance of at least 10 feet from all overhead power lines. If a defective power tool gives you an electric shock, how might your muscles react? 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. SCENARIO: You encounter a co-worker on a residential remodeling job. Which of the following are conductor of electricity? 0000006893 00000 n Quiz Question 6: Which of these is not a type of Ground Fault Circuit Adapter? Electrical Safety Multiple Choice Questions and Answers for competitive exams. One hand drill was not grounded, and the other had no safety plate. PDF SAFETY HAZARDS: These are the most PHYSICAL HAZARDS: CHEMICAL HAZARDS The light fixture, which served as a ground, was known to be faulty for at least 5 months before the incident. Burns. endobj D. Have an ANSI sticker and an expiration date. Outlets 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 length of time the body is in the circuit, in contact with electricity - Factor determining the severity of an electrical . Quiz Question 2: Which is acceptable when using powdered tools? The victim provided a path to ground and was electrocuted. Water endobj (3,2,1), (5,4,3). b.Yes, as it would be too expensive to install more permanent wiring and receptacles. -Voltage= a measure of electrical force. Question 2: Which of the following are ways employers must protect their employees on the workplace? 2.Something to transport the electrical current -- A conductor. The \rule{1cm}{1pt} artery carries deoxygenated blood from the heart to the lungs. To avoid injury or death, you must understand and recognize hazards. 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. PDF Electrical Hazards - Occupational Safety and Health Administration Is not broken, Question Text: Electrical tools should be grounded with a(n)________. <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 792 612] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> 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. No GFCI's were used. 0000000016 00000 n d. Match the outlet prongs to the extension cord. D. Communicate the hazard to the crew and subs, use signs and bar E. Both C and D Q22. 0000002195 00000 n Electrical hazards expose workers to the following: Burns: Three types; electrical, arc flash, or thermal contact. Latoya is using a mixing motor to mix pool chemicals in a plastic drum. d. 20 feet. 4.Flex OSHA 10 General Industry Test Answer Key WALKING. A worker was removing a metal antenna when it made electrical contact with a 7200-volt power transmission line. c.Three-prong plug 0000427811 00000 n 0000013999 00000 n 2. 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). Carly needs to use an extension cord with her corded nail gun. Use tools and equipment according to the instructions included in their listing, labeling or certification. electrical safety part 1 Flashcards | Quizlet Question 3: Employers are not required to enforce lock out/tag out practices in the workplaces. A co-worker disconnected the power cord to the saw, too late to save the victim. 5 feet 0000003771 00000 n startxref 2.Complete 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. High humidity Electrical current travels through insulated ________. 4.Combustible dust, Fundamentals of Engineering Economic Analysis, David Besanko, Mark Shanley, Scott Schaefer. Attaching ungrounded, two-prong adapter plugs to three-prong cords and tools. _5JKy. Question 4: When a worker receives an electric shock, first aid must start within ___________ minutes. Get resources on specific hazards and their control, including identification, risk assessment and inspections, to keep your workplace healthy and safe. 3. 5>vB35Plm$\4{U[lU`t~.vJGmFO^@+ cGPzNY*oS(m%q{Agp 1452 0 obj <> endobj 0000004793 00000 n 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 1. 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