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a.Electricity Quiz Question 6: Which of these is not a type of Ground Fault Circuit Adapter? 3.No, because he will not be touching any grounded material when using the tool. Question 1: Which of the following is a danger of electricity? <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> Safe operation of hand and portable powered tools and other hand-held equipment. -Falls. True. B 208v. Electrical safety quiz answers are given below. 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. Short Confined spaces Machinery-related hazards (lockout/tagout, boiler safety, forklifts, etc.) d.50,000 volts. Post warning signs. The light fixture, which served as a ground, was known to be faulty for at least 5 months before the incident. What is the output of the program in Exercise 17, if first = 26 and second = 8? 0000004686 00000 n 0000002122 00000 n Look for overhead power lines and buried power line indicators. Latoya is using a mixing motor to mix pool chemicals in a plastic drum. 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. 2.Loose screws 2.Placed along a wall. PDF ODULE 1 INTRODUCTION TO E SAFETY - Occupational Safety and Health c. Match the color of the tool to the color of the extension cord. 0000002557 00000 n HWMo#7v#h>6,Z4- Contact utilities for buried power line locations. H\n0)M) 0Ir(,?FoKhdklz6zHG;mOqOh-tv.]NGv~d.m\S{|Fo-x-\"1X/niCYeq"ol8D~&?Kr V_/9yf 9JV%J899s{_G#R0="dL5,p: On the day of the incident, the victim plugged in a damaged extension cord and laid it out towards the bulkhead. 2.Yes, because he is using a portable power tool. 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 c.Touching the motor The victim was totally deaf in one ear and suffered diminished hearing in the other. One handle has a deadman's switch. Death. 0000421627 00000 n 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? 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. 4.The amount of current, An electrical burn may affect: Damaged Extension Cord Leaves Arc Welder Ungrounded: A 29-year-old welder attempted to connect a portable arc welder to an electrical outlet using an extension cord. b) By supplying GFCIs, or ground-fault circuit interrupters 0000108920 00000 n Electrical Safety Quiz-Test Your Electrical Safety Knowledge OSHA 30 - Module 12: Electrical Safety Flashcards | Quizlet d) All of the above. 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. Co-workers provided CPR, but were unable to revive the victim. Electrical Safety Standards in the Workplace - NFPA 70E - Grainger KnowHow (3,2,1), (5,4,3). 0000028595 00000 n A worker was removing a metal antenna when it made electrical contact with a 7200-volt power transmission line. 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 Electric current cannot exist without an unbroken path to and from the conductor. <> trailer <<11AC4BACEBCA4B32A885F1120BD3A307>]>> startxref 0 %%EOF 153 0 obj <>stream The first worker knocked the auger off the victim, but saw that the electric cord was wrapped around the victim's thigh. Find the volume of the parallelepiped determined by the vertices (1,1,1),(4,7,2) . d.Adapter, What is a GFCI? c) Establish and enact an assured equipment grounding conductor program (AEGCP) Then answer the questions below. Flexible Cord Not 3-Wire, Hard Service Variety: A worker received a fatal shock when he was cutting drywall with a metal casing router. Which of the following are caused by contact with electricity? Electrical hazards like frayed cords, missing ground pins, improper wiring or the harm that these hazards pose. Electrical Safety Quiz - OSHA.net -Grounding= a conductive connection to the earth which acts as a protective measure. 182 0 obj <> endobj xref 182 41 0000000016 00000 n Engineers, electricians, and other professionals work with electricity directly, including working on overhead lines, cable harnesses, and circuit assemblies. 0000002150 00000 n She finds several available in the shop. A worker was operating a " electric chisel when an electrical fault occurred in the casing of the tool, causing him to be fatally electrocuted. -Current= the movement of electrical charge. Using equipment outdoors that is labeled for use only in dry, indoor locations. The NEC C. Suggestions <> Electrocution was the second leading cause of worker deaths on construction sites in the United States in 2011. %PDF-1.4 % Additionally, the ground prongs were missing from the two cords. Overview. Looking for NFPA 70E Certification? 2. The workers administered CPR to the victim, but to no avail. 2.Using extension cords or electrical tools properly. Best practices with power lines include: 4.Combustible dust, Fundamentals of Engineering Economic Analysis, David Besanko, Mark Shanley, Scott Schaefer. 0000003771 00000 n 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. PDF SAFETY HAZARDS: These are the most PHYSICAL HAZARDS: CHEMICAL HAZARDS Quiz: Electrical Hazards. 1.Clench Intentionally creating a low-resistance path that connects to the earth. What factors determine the severity of Dirk's injuries? Continually audit cords on-site. 2. 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. Explain the process that prevents the poles from steadily cooling off and the tropics from heating up over time. 0000057373 00000 n (D) None of the above. Which of the following injuries can occur when muscles flex or twitch from an electrical shock? Outlets % In 2017, there were over ______________ electrical related violations cited by OSHA in the workplace. d/E \VZvl$Y#nH,EIm /\"BQ>Rkl6xZWtAgfs 1.Damaged cover or insulation s\A0W+ c.Guaranteed Fault Circuit Interrupter Question 4: Which of the following is a type of burn caused by electrical hazards? PDF Electrical Safety - Occupational Safety and Health Administration Use only equipment that is approved to meet OSHA standards. The individual's perspiration-soaked clothing/body contacted bare exposed conductors on one of the cords, causing an electrocution. Is not painted over Which of the following are insulators of electricity? Electrical Hazards - SSOE Group 0000110659 00000 n Take any defective equipment out of service. No Ground-Fault Circuit Interrupters (GFCIs): A journeyman HVAC worker was installing metal duct work using a double-insulated drill connected to a drop light cord. 1. a.Two-prong plug hb``b``=p0X8n0lY0L#rK[V26h* @0H!XDl+!&FfUfo`h6l c.Power lines 0000414648 00000 n Attaching ungrounded, two-prong adapter plugs to three-prong cords and tools. A. indoors. Out of several possible scenarios, the most likely was contact between the exposed wires of an extension cord and a screw that protruded from the receptacle, which had its face plate removed. d. Not checking to make sure that the motor was properly grounded, If the circuit does not turn off when testing the GFCI, the GFCI: C 277v. HJ=S~68438IR/:VR C Y<7H*$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 If you are touching any grounded material while using a power tool You discover the electrical cord on a drill has been damaged and some of the cord's insulation is missing. 1.Missing or broken path to ground. g]+fn_m{mja_0Y w endstream endobj 189 0 obj <> endobj 190 0 obj <>stream 1.Pain 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. and more. Should Ajay use a GFCI? 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. [, Use all equipment according to the manufacturer's instructions. Using circuit breakers or fuses with the wrong rating for over-current protection, e.g. 3.Clear No GFCI's were used. 0000003254 00000 n Electrical hazards are life threatening incidents that could happen due to electricity. Extension cords may become a trip hazard when: b+t6W' te+.W_{8u7Dt@1c. Examples Of Electrical Hazards. <> Which of these can be used as insulating live-line tools for electrical protection. Yes, because he will be using electricity near water. Study with Quizlet and memorize flashcards containing terms like Bob is asked to repair some overhead wiring, requiring the use a ladder. Use the terms (freezing, gas, liquid, physical changes, solubility, solution, temperature, volume) to complete the sentence. 0000005050 00000 n Regarding hand protection employers should: A. Power was supplied through two extension cords from a nearby residence. Extension cords are used to: 0000001495 00000 n Other protective measures include guarding or insulating the lines. After the wall was poured, one driver cleaned the loading chute of his cement truck with a water hose mounted on the truck. Match the length from job to outlet. Fatal electrocution is the main risk, but burns and falls from elevations are also hazards. d.Metal, Over half of all deaths caused by electricity result from contact with ________. 0000002479 00000 n Quiz Question 2: Which is acceptable when using powdered tools? 0000011060 00000 n 4.Running through doorways. <> 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. he most common shock-related injuries are: 0000004793 00000 n The auger has a one-quarter horsepower motor encased in a metal housing with two handles. qnde>9!.,T2 :hw5 #OaPxkx=y7]J-yv*'H$jmVCq$ sx:R2$9SY+D!!LJ:n+.\#Hu~2VI O? (a) Describe the reaction between the hydride ion and water in terms of a Bronsted acid-base reaction. 1452 25 [Flexible Cords and Power Tools]. H\n@0vj@/R#tnvihavopnS1>v8Z6zLpOCRU.O^6pImjgk{xv6%zp\,{|7_WqNfhu09$U?kW}: }y}]OIL5~W*8D~%W-yww;sORYbfspA.%YJV L%=Kx&0W+ 1.Flammable liquids H. 5. Ajay needs to use a dewatering pump to drain standing water on a construction site. xb```VVF A10p,``Pp`hhdpn``r`L:[ I,aZ4Knj21 `ny; Ge7t@OrMx)"cx&e:[~J%aUJ\*t b.Metal Noise, : ________ or heavy perspiration can cause electricity to take an unintended path. The auger then fell across the other worker, the 24-year-old victim. Select the correct answer and then click DONE. b.Shut off power within five minutes of the imbalance 3 OSHA requires the testing of a volt meter after a voltage test on voltage above_____. The presence of ______ can turn you, your equipment, or insulators like wood, into conductors. c. Extend the reach of the power tool. Electrical Hazards Electrical hazards can be found in nearly every roofing work site. Electricity will form a "path" or "loop". 4.Circuit breakers, When inspecting power tools, look for: Draw a line from the item on the left that corresponds to the match on the right. 0000003413 00000 n eTool : Construction - Electrical Incidents | Occupational Safety and