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Muscular contraction and nerve damage occur; death likely. 4 0 obj Yes, because he will be using electricity near water. 0000022637 00000 n 0000013716 00000 n 0000011060 00000 n Select the correct answer and then click DONE. 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. 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. When used on the moon? A 120v. 1.Extension cords 4.Broken. b.Ground Fault Critical Interrupter OSHA-10: Avoiding Electrocution Hazards Flashcards | Quizlet %PDF-1.5 B. outdoors. =EAn`u!d, |\~Y>ZF( dnLN\2vP6 >sSjgh2:Lmqx#a[G2{h$zW]_:@Lvr)2T:R-/ `&~O4j)>1P*M 5>F:1B.g!AR Attaching ungrounded, two-prong adapter plugs to three-prong cords and tools. a.Conductive objects Be sure equipment that has been shop fabricated or altered is in compliance. d) All of the above. endobj Question 3: A/an ____________ is a unit of measurement for electrical resistance. %PDF-1.4 % a.Standing in water OSHA: How Electricity Works Flashcards | Quizlet 12 months C. 6 months D. Never Q23. 4.Circuit breakers, When inspecting power tools, look for: 2. Quiz Question 2: Which is acceptable when using powdered tools? a) Ensure overhead power line safety 0000009628 00000 n Supply power for tools or equipment on a long-term basis. Used across walkways. 0000007464 00000 n 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 contact lasts for 5 seconds before someone is able to shut off the power. b. Deductive objects Electrical current travels through insulated ________. 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 One worker, holding the deadman's switch, received a shock from a ground fault in the auger and was knocked back from the machine. Which of the following are caused by contact with electricity? The presence of ______ can turn you, your equipment, or insulators like wood, into conductors. If you are touching any grounded material while using a power tool Use only equipment that is approved to meet OSHA standards. He yelled for his co-workers to disconnect the power, which they did. A) 120v . OSHA requires the testing of a volt meter after a voltage test on voltage above_____. 3.Cramp Work performed on an electrical system within reaching distance of energized components is_____work. The small electrical current enters his body through his left leg. 1.Pain Quiz Question 1: Which of the following is not a category of electrical burns? 4.Must be replaced, Always use a GFCI: Power was supplied through two extension cords from a nearby residence. De-energizing What is the output of the program in Exercise 17, if first = 26 and second = 8? View Answer Answer: 600v 4 . [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. :$#k9BPnZ{Qqe/reKy,'ZlB# 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. 1476 0 obj <>stream 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? Post warning signs. 4,600. c. Inductive objects Match the length from job to outlet. 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. Using modified cords or tools, e.g., removing ground prongs, face plates, insulation, etc. Select the correct answer and then click DONE. Select the correct answer and then click DONE. Bob is asked to repair some overhead wiring, requiring the use a ladder. Do not remove ground prongs from cord- and plug-connected equipment or extension cords. Use tools and equipment according to the instructions included in their listing, labeling or certification. 1. 4.Good condition of moveable parts, Items that could encourage overheating and cause tools to malfunction or start a fire include: -Current= the movement of electrical charge. 0000014257 00000 n a) Door or window edges Using tools and equipment that can contact power lines increases the risk. hazard or that their employer is not following OSHA's rules. Co-workers provided CPR, but were unable to revive the victim. Dust 0000005716 00000 n BIOLOGICAL HAZARDS: term effects) and strain (longAssociated with working with animals, people, or infectious plant materials. a. b.Yes, as it would be too expensive to install more permanent wiring and receptacles. 3.Something that causes current to flow through the . Which of the following are insulators of electricity? lex has set up a mobile engine testing station in the maintenance area. c.Wood 5 feet 4. 0000108920 00000 n Electricity becomes hazardous when it takes an unintended path to complete the ________. 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. Using equipment outdoors that is labeled for use only in dry, indoor locations. Even when the power system is properly grounded, electrical equipment can instantly change from safe to hazardous because of extreme conditions and rough treatment. d. 20 feet. The victim provided a path to ground and was electrocuted. 3.Maintaining a safe distance of at least 10 feet from all overhead power lines. 0000028595 00000 n %%EOF a.Shut off power within a fraction of a second Question 4: Which of the following is a type of burn caused by electrical hazards? OSHA: Air Monitoring & Medical Surveillance, 5 ANO - RETOMANDO ARTIGO, SUBSTANTIVO E ADJE. eTool : Construction - Electrical Incidents | Occupational Safety and Check your employee's electrical safety knowledge through an electrical safety quiz. Quiz Question 3: Power cords can be damaged by which of the following? Electricity will form a "path" or "loop". (D) None of the above. 2.The person's physical condition Death. 0000414648 00000 n Underground electrical hazards are: A. Select the choices that accurately define the common electrical term. 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. The modification of the plug was not an intended use or prescribed by the manufacturer. Quiz Question 7: Which is not an insulator? OSHA 29 CFR 1910.147 . . 3.Tears Select the correct answer and then click DONE. A 56-year-old construction laborer was removing forms from a concrete wall poured several days earlier. Quiz Question 10: Ground-fault circuit interrupters must be used for all of the following except? 1.Missing 182 0 obj <> endobj xref 182 41 0000000016 00000 n Select the correct answer and then click DONE. 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 Ajay needs to use a dewatering pump to drain standing water on a construction site. b.10 feet Additionally, the ground prongs were missing from the two cords. PDF Name: Date: Test Electrical Safety Quiz SELECT THE BEST ANSWER. Electrical Safety Multiple Choice Questions and Answers for competitive exams. 0000002876 00000 n A. wrap tape around the damaged spot to prevent electrical shocks. Is split The first worker knocked the auger off the victim, but saw that the electric cord was wrapped around the victim's thigh. using a 30-amp breaker in a system with 15- or 20-amp receptacles. 0000007694 00000 n What factors determine the severity of Dirk's injuries? Is the west coast of Africa a plate boundary? How fast would the ball be moving at the moment of release? h|UnH}+i-. Flexible Cord Not 3-Wire, Hard Service Variety: A worker received a fatal shock when he was cutting drywall with a metal casing router. H. 1.Fingernails a.related to muscle damage. Electric current cannot exist without an unbroken path to and from the conductor. You should? d.Ground Fault Circuit Interrupter, : Another electrical hazard that can cause injury or death in the workplace is a ________ path to ground. c.falls. 0000421627 00000 n 0000001814 00000 n 0000003771 00000 n Both could have prevented the accident from occuring. -Falls. 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 Quiz: Electrical Hazards. Should he use an extension cord to power it? Electrical Safety Multiple Choice Questions(MCQs) & Answers - gkseries endobj 0000012360 00000 n Osha 10 test answers 2021 quizlet - Math Questions <> 0000005520 00000 n 3.The length of time the body is in contact with electricity 0000002195 00000 n A. indoors. 0000004686 00000 n 2.Yes, because he is using a portable power tool. d.Water, Other electrical hazards in the workplace include: Apparently, his hand contracted and he was "locked" to the saw. Question 2: It's okay to use extension cords with worn insulation, as long as you are careful about it. As he removed the forms, he wrapped them with a length of cable called a choker, which was to be attached to a crane. These short objective type questions with answers are very important for competitive exams as well as Board exams. 0000005042 00000 n qnde>9!.,T2 :hw5 #OaPxkx=y7]J-yv*'H$jmVCq$ sx:R2$9SY+D!!LJ:n+.\#Hu~2VI O? d.50,000 volts. The insulation on the extension cord was cut through and exposed bare, energized conductors which made contact with the ladder. he most common shock-related injuries are: 0000004965 00000 n 3. . 1452 25 0000004946 00000 n % (B) Switch sticks. Quiz Question 5: A/an ___________ is a unit of measurement for electrical resistance. Lockout/tagout procedures. 1452 0 obj <> endobj Hand-operated metal shifting ropes or cables of electric elevators. 0000002122 00000 n Which of the following can be caused by exposure to an arc flash? 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. The auger then fell across the other worker, the 24-year-old victim. 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. (A) Shotgun sticks. trailer 4.Running through doorways. Other protective measures include guarding or insulating the lines. Electrical - Overview | Occupational Safety and Health Administration No GFCI's were used. Take any defective equipment out of service. Computers 3. 3.Vapor hb``b``=p0X8n0lY0L#rK[V26h* @0H!XDl+!&FfUfo`h6l b.Electrical tools D. Have an ANSI sticker and an expiration date. Of the following choices, which are frequent electrical hazards 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. c.Power lines 1. x_HSqnwmky54YLzeStJi# TZObFT*.#BQF/Q The following references aid in recognizing hazards associated with electrical work. <>>> c.40,000 volts 1. Remove from service any equipment with frayed cords, missing ground prongs, cracked tool casings, etc. Select the correct answer and then click DONE. 0000004921 00000 n You can classify scales for weighing objects as those that use springs and those that use standard masses to balance unknown masses. 0000420564 00000 n 2.Skin Fire HWMo#7v#h>6,Z4- c) Age a.Yes, because the electrical shock caused the fall. Most of the hydrides of Group 1A and Group 2A metals are ionic. 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. 0000010603 00000 n 0000056642 00000 n ZR)!=w|; @uT C0? 4. 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. 4.The amount of current, An electrical burn may affect: OSHA: Air Monitoring & Medical Surveillance, WebQuest: Biomes, Ecosystems and Habitats. The ________ keeps the electricity on its intended path through the conductor. 2.Loss of muscle control d.A power tool, A GFCI is designed to: Course 812 Module 7 OSHA Focus Four Hazards: Electrocution - OSHAcademy 0000002385 00000 n Electricity for power tools was supplied from an exterior 120-volt, grounded AC receptacle located at the back of the residence. CCOHS: Electrical Safety - Basic Information d.Metal, Over half of all deaths caused by electricity result from contact with ________. 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 OSHA 30 - Quiz 3 - Electrocution Hazards Flashcards | Quizlet Short Confined spaces Machinery-related hazards (lockout/tagout, boiler safety, forklifts, etc.) If a worker has been retaliated against for using their rights, they 3.Loose nuts NFPA 70E: Standard for Electrical Safety in the Workplace Noise, : ________ or heavy perspiration can cause electricity to take an unintended path. 3.No, because he will not be touching any grounded material when using the tool. In addition to contact with power lines, the top electrical hazards include: 1.A source of electrical current to flow. Gloves used for electrical work must be inspected and tested prior to use, and be certified every: A. 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). She finds several available in the shop. %PDF-1.4 % The NEC C. Suggestions Becoming part of the circuit exposes you to ________, the most dangerous electrical hazard. 2. %PDF-1.5 4.Combustible dust, Fundamentals of Engineering Economic Analysis, David Besanko, Mark Shanley, Scott Schaefer. Arc Flash. 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. 2 0 obj 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. 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+ The floor is covered in water and she is barefoot. 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. b.811 0000003715 00000 n b+t6W' te+.W_{8u7Dt@1c. 1 0 obj 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. Select the correct answer and then click DONE. The most dangerous place to use electrical equipment is? 2.Loose bolts d.Constructive objects, Select all answers that apply to the following statement and then click DONE. 2.Complete 2. 0000057373 00000 n Select the correct answer and then click on DONE. As he is working on the wiring, he receives an electrical shock that knocks him backward and causes him to fall off the ladder. c.Guaranteed Fault Circuit Interrupter 0000006866 00000 n Which of the following injuries can occur when muscles flex or twitch from an electrical shock?