which of the following are electrical hazards osha quizlet

When the victim reached down to connect the choker to the hoist cable, he suddenly collapsed. Quiz Question 5: A/an ___________ is a unit of measurement for electrical resistance. One hand drill was not grounded, and the other had no safety plate. I;C`_;LV'd,|#H--e`( ')'RpAgA7O`?%68SB Question 4: When a worker receives an electric shock, first aid must start within ___________ minutes. 0000005520 00000 n Which one of these methods MOST effectively protects machines, tools, and operators against damage from electrical current? Hand-operated metal shifting ropes or cables of electric elevators. a. Gaseous matter The floor is covered in water and she is barefoot. -Conductor= permits the free flow of electricity. 0000012360 00000 n What is the most common, non-fatal, electrical shock-related injury? 0000017163 00000 n Use only extension cords that are marked with a designation code for hard or extra-hard usage. Match the length from job to outlet. <<7628BB2D46738F42B2FC6393656F4718>]>> 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. In addition to contact with power lines, the top electrical hazards include: Of the following choices, which are frequent electrical hazards Select the correct answer and then click DONE. b.811 Continually audit cords on-site. What do tripped circuit breakers and blown fuses indicate? These short objective type questions with answers are very important for competitive exams as well as Board exams. 0000006152 00000 n 0000001116 00000 n %PDF-1.4 % When used on the moon? 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: 1.Fingernails Lockout/tagout procedures. 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 h|UnH}+i-. Best Practices with Power Lines 1. 4,600. 0000010603 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. . Frames of non-electrically driven elevator cars to which electric conductors are attached. b.Match the thickness of the extension cord to the thickness of the nail gun's power cord. 0000421627 00000 n 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. Select the correct answer and then click DONE. Look for overhead power lines and buried power line indicators. 1. b.Rod Quiz: Electrical Hazards. Select the correct answer and then click DONE. hazard or that their employer is not following OSHA's rules. 3.Clear 0000001861 00000 n he most common shock-related injuries are: 1452 25 b.A fast-acting switch monitoring current flow 0000022637 00000 n Additionally, the ground prong was missing and there was no GFCI protection. 3. 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 b.Electrical tools 0000003771 00000 n 3. c. Extend the reach of the power tool. 1. 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. endobj 5 feet %PDF-1.5 @*@;z}IAH@3MsgU1Dnf@agLahpCn@&b|-^;b0k*!3VYy,jy%( Z%|\Jg"dRp-Wbz3QJS%k9p_WtZ Electrocution was the second leading cause of worker deaths on construction sites in the United States in 2011. The most dangerous place to use electrical equipment is? gYpV:+ 1. d/E \VZvl$Y#nH,EIm /\"BQ>Rkl6xZWtAgfs No Ground-Fault Circuit Interrupters (GFCIs): A journeyman HVAC worker was installing metal duct work using a double-insulated drill connected to a drop light cord. H\n@0vj@/R#tnvihavopnS1>v8Z6zLpOCRU.O^6pImjgk{xv6%zp\,{|7_WqNfhu09$U?kW}: }y}]OIL5~W*8D~%W-yww;sORYbfspA.%YJV L%=Kx&0W+ In which of the following workplace situations are you at risk for coming into contact with live electrical . Unless you know otherwise, assume that overhead lines are energized. BE SAFE! It is important to note that NFPA 70E is a . Additionally, the ground prongs were missing from the two cords. c.Guaranteed Fault Circuit Interrupter (See NFPA 70E-2021 Article 130 and OSHA subpart S part 1910.333 (a) (1)- (2) and (c) for complete details.) Safe operation of hand and portable powered tools and other hand-held equipment. 2.Loose screws qnde>9!.,T2 :hw5 #OaPxkx=y7]J-yv*'H$jmVCq$ sx:R2$9SY+D!!LJ:n+.\#Hu~2VI O? 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 OSHA 29 CFR 1910, Subpart S . Engineers, electricians, and other professionals work with electricity directly, including working on overhead lines, cable harnesses, and circuit assemblies. 0000004686 00000 n Question 1: Which of these is a type of Ground Fault Circuit Adapter? 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 Find the energy required to raise an electron from the n=4n=4n=4 state to the n=5n=5n=5 state in Li2+\mathrm{Li}^{2+}Li2+ and in hydrogen atom. 3. b.30,000 volts 0000108653 00000 n 0000004946 00000 n True. Should Ajay use a GFCI? Provide a safe path to earth ground for electricity. Ground metal parts of the following non-electrical equipment, as specified by the OSHA standard [, Frames and tracks of electrically operated. If you are touching any grounded material while using a power tool b) Staples 4.Running through doorways. 0000004884 00000 n Gloves used for electrical work must be inspected and tested prior to use, and be certified every: A. Examples of Equipment That Can Contact Power Lines. a.Your thumb. You should? Which of these can be used as insulating live-line tools for electrical protection. d.Adapter, What is a GFCI? De-energize and ground lines when working near them. c.A measurement of electricity The victim signaled the operator of the crane to extend the boom and lower the hoist cable. Seven employees of a masonry company were erecting a brick wall from a tubular, welded-frame scaffold approximately 24 feet high. The small electrical current enters his body through his left leg. Use non-conductive wood or fiberglass ladders when working near power lines. . Explain the process that prevents the poles from steadily cooling off and the tropics from heating up over time. 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. Electrical hazards like frayed cords, missing ground pins, improper wiring or the harm that these hazards pose. 0000001646 00000 n 0000003715 00000 n D. near other electrical equipment. 1.The humidity of the environment Visually inspect all electrical equipment before use. When the energized conductor made contact with the ladder, the path to ground included the worker's body, resulting in death. 0000007464 00000 n A laborer carried a piece of wire reinforcement (10 feet long by 8 inches wide) along the top section of the scaffold and contacted the power line with it. [Flexible Cords and Power Tools] If there is no ground-fault protection, these can cause a ground-fault that sends current through the worker's body, resulting in electrical burns, explosions, fire, or death. This standard also includes safe work practices for employees performing other work activities that can expose them to electrical hazards as well as safe work practices for the following: (1) Installation of conductors and equipment that connect to the supply of electricity (2) Installations used by the electric utility, such as office . Draw a line from the item on the left that corresponds to the match on the right. 0000001908 00000 n 0000002150 00000 n 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. Is the west coast of Africa a plate boundary? 0000012944 00000 n 3.Draped over equipment. Electrical Safety Quiz Electrical safety is an important topic that you and your workers need to know about. Effective means of controlling power line hazards include: (B) Switch sticks. A measure of the energy of motion of the particles in a substance is its _____. Computers d.Constructive objects, Select all answers that apply to the following statement and then click DONE. It's okay to use extension cords with worn insulation, as . OSHA 10 - Exit Routes, Emergency Action Plans, The Analysis and Design of Linear Circuits, Albert J. Rosa, Gregory J. Toussaint, Roland E. Thomas. Get resources on specific hazards and their control, including identification, risk assessment and inspections, to keep your workplace healthy and safe. What type of burns are the result of current flowing through and exiting the body? 1.Extension cords 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. Both the operator and the victim failed to notice that the boom had contacted a 2,400-volt overhead power line. a.311 C. near water. The normal wear and tear on extension and flexible cords at your site can loosen or expose wires, creating hazardous conditions. The following are electrical hazards: Shock. 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. 0000420887 00000 n 2.Grounding Ajay needs to use a dewatering pump to drain standing water on a construction site. a.Ground Fault Circuit Insulator Ground all power supply systems, electrical circuits, and electrical equipment. Question 2: It's okay to use extension cords with worn insulation, as long as you are careful about it. How might this event affect the ability of animals to obtain energy to live? 0000001814 00000 n d. No, because an extension cord would not provide enough power. 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? 0000002403 00000 n Apply a warning tag to any defective tool and do not use it until the problem has been corrected. Besides personal bodily injury, what other electrical hazards can be found in the workplace? Using multi-receptacle boxes designed to be. a.Standing in water 1.Missing or broken path to ground. Question 4: Which of the following is a type of burn caused by electrical hazards? d.Metal, Over half of all deaths caused by electricity result from contact with ________. Which of the following injuries can occur when muscles flex or twitch from an electrical shock? 0000003900 00000 n 2.Complete The workers had removed their shirts and were sweating. What three things must be present for a current to flow through a conductor. 0000003254 00000 n [, Do not modify cords or use them incorrectly. Quiz Question 3: Power cords can be damaged by which of the following? OSHA requires the testing of a volt meter after a voltage test on voltage above_____. Co-workers provided CPR, but were unable to revive the victim. 0000002386 00000 n Follow manufacturers' recommended testing procedure to insure GFCI is working correctly. Fatal electrocution is the main risk, but burns and falls from elevations are also hazards. 0000004444 00000 n The length of time the body is in the circuit, in contact with electricity - Factor determining the severity of an electrical . How fast would the ball be moving at the moment of release? 0000420277 00000 n Protection is lost because it will not trip when the system's load has been exceeded. <>>> 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. Quiz Question 9: Conductor insulation must be approved for the ___________ of use? An employee was texturing a wall using an air compressor. Which of the following are insulators of electricity? Electrical safety requirements necessary for the practical safeguarding of employees in the workplace. c. No, because the electricity is needed on a long-term basis. D. Have an ANSI sticker and an expiration date. trailer Select the correct answer and then click DONE. 0000006893 00000 n The accident site was wet; also, humidity was high and the victim was sweating. Ground all exposed metal parts of equipment. 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. Electrical Safety Multiple Choice Questions and Answers for competitive exams. Short Confined spaces Machinery-related hazards (lockout/tagout, boiler safety, forklifts, etc.) *Effects are for voltages less than about 600 volts. %PDF-1.5 A Safety Electrical One Line Diagram should be used to _____ all sources of electrical energy. d. Match the outlet prongs to the extension cord. The first worker knocked the auger off the victim, but saw that the electric cord was wrapped around the victim's thigh. -Grounding= a conductive connection to the earth which acts as a protective measure. 0000001495 00000 n 0000002876 00000 n Used across walkways. _5JKy. The modification of the plug was not an intended use or prescribed by the manufacturer. Carly needs to use an extension cord with her corded nail gun. OSHA Pros, LLC is an authorized provider of 360 Training, an OSHA-Accepted Provider, offering training and certification courses for NFPA 70E-Standard, and Is not broken, Question Text: Electrical tools should be grounded with a(n)________. 2.The person's physical condition Before using the equipment, be sure that the ground wire: :$#k9BPnZ{Qqe/reKy,'ZlB# 0000004921 00000 n 2. 0000004208 00000 n 0000007116 00000 n Isolating, Power lines may be located underground. ZR)!=w|; @uT C0? 0000007427 00000 n 1) The _____ created the Occupational Safety and Health Administration (OSHA) to set and enforce protective workplace safety and health standards. 2 0 obj endobj OSHA 10 General Industry Test Answer Key WALKING. 2. c. Inductive objects (D) None of the above. Ground metal parts of the following non-electrical equipment, as specified by the OSHA standard [29 CFR 1926.404(f)(7)(v)]: Frames and tracks of electrically operated cranes. Select the correct answer and then click DONE. Frequently inspect electrical systems to insure that the path to ground is continuous. What factors determine the severity of Dirk's injuries? Additional minimum clearance distance is required for power lines carrying over ________.