(E) a, b, and c. 2. 0000002122 00000 n Ground metal parts of the following non-electrical equipment, as specified by the OSHA standard [, Frames and tracks of electrically operated. 4 0 obj Using equipment outdoors that is labeled for use only in dry, indoor locations. Do not remove ground prongs from cord- and plug-connected equipment or extension cords. 1.Fingernails [, Use all equipment according to the manufacturer's instructions. qnde>9!.,T2 :hw5 #OaPxkx=y7]J-yv*'H$jmVCq$ sx:R2$9SY+D!!LJ:n+.\#Hu~2VI O? Select the correct answer and then click DONE. *Effects are for voltages less than about 600 volts. d.Metal, Over half of all deaths caused by electricity result from contact with ________. c.Gasoline 2.Loose screws 0000024814 00000 n Used across walkways. 2 0 obj [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. Using tools and equipment that can contact power lines increases the risk. 2.Grounding -Damage to internal organs. 0000004884 00000 n View Answer Answer: 600v 4 . The source of the electricity was apparently a short in a receptacle, but examination revealed that the electrical equipment used by the contractor was in such poor condition that it was impossible to make a certain determination of the source of the short. This caused him to fall from the ladder and land in a puddle of water, still holding the saw. After the wall was poured, one driver cleaned the loading chute of his cement truck with a water hose mounted on the truck. Improper Use of Extension and Flexible Cords. Use non-conductive wood or fiberglass ladders when working near power lines. How will she choose the correct cord? 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). 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. Carly needs to use an extension cord with her corded nail gun. A. wrap tape around the damaged spot to prevent electrical shocks. -If current passes through the body near the heart or brain. Potential hazards of electricity are preventable if you do which of the following listed below? 3.Vapor 1. a) Door or window edges Select the correct answer and then click DONE. d.A power tool, A GFCI is designed to: Select the correct answer and then click DONE. b. 0000422244 00000 n What is the output of the program in Exercise 17, if first = 26 and second = 8? 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. 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. %PDF-1.4 % Death is probable. OSHA 29 CFR 1910, Subpart S . endobj 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. Select the correct answer and then click DONE. 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. 1. Electricity will form a "path" or "loop". 3.Body tissue D. Have an ANSI sticker and an expiration date. stream OSHA 29 CFR 1910, Subpart P . These short objective type questions with answers are very important for competitive exams as well as Board exams. Find the volume of the parallelepiped determined by the vertices (1,1,1),(4,7,2) . A 20-year-old bricklayer standing on the work platform in contact with the main scaffold was electrocuted. Question 4: Which of the following is a type of burn caused by electrical hazards? The NEC C. Suggestions When used on the moon? Switch True. 0000001116 00000 n The victim provided a path to ground and was electrocuted. Select the correct answer and then click DONE. specifically addresses electrical protective devices. Best Practices with Power Lines 1. %PDF-1.4 % a.Yes, as it is a mobile engine testing station. 0000008392 00000 n 1476 0 obj <>stream 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. hazard or that their employer is not following OSHA's rules. c. No, because the electricity is needed on a long-term basis. 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). 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: uVNSF!UTRQ91uR,6@hCH}]GAlaPh)NeT$iQ89S9|?4wahU ltz9 PH[$I&VX9WG%K~1{u8M:D"+HLEy 3@NR^z!rB^?RyOj;'Lof. Electrocution. d.The body of the power tool. When the energized conductor made contact with the ladder, the path to ground included the worker's body, resulting in death. Only after a rescue squad arrived about 4 minutes later did anyone realize that the crane was in contact with a power line -- all those present had assumed that the victim had suffered a heart attack. 0000011060 00000 n Electrical safety requirements necessary for the practical safeguarding of employees in the workplace. OSHA 10-Hour Safety Course - Electrical Safety Page 5 of 5 Use the three-stage safety model to stay safe: recognize, evaluate, and control hazards. ZR)!=w|; @uT C0? xb```VVF A10p,``Pp`hhdpn``r`L:[ I,aZ4Knj21 `ny; Ge7t@OrMx)"cx&e:[~J%aUJ\*t It is important to note that NFPA 70E is a . (3,2,1), (5,4,3). While attempting to unplug the compressor from the extension cord, the employee was fatally shocked. Both the operator and the victim failed to notice that the boom had contacted a 2,400-volt overhead power line. 0000002386 00000 n What is the most common, non-fatal, electrical shock-related injury? OSHA 10 - Exit Routes, Emergency Action Plans, The Analysis and Design of Linear Circuits, Albert J. Rosa, Gregory J. Toussaint, Roland E. Thomas. 4.The amount of current, An electrical burn may affect: trailer 1. The contact lasts for 5 seconds before someone is able to shut off the power. d/E \VZvl$Y#nH,EIm /\"BQ>Rkl6xZWtAgfs B. outdoors. Electrocution was the second leading cause of worker deaths on construction sites in the United States in 2011. The length of time the body is in the circuit, in contact with electricity - Factor determining the severity of an electrical . 0000420887 00000 n hb``b``=p0X8n0lY0L#rK[V26h* @0H!XDl+!&FfUfo`h6l 4.No, because he does not need to use an extension cord. 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. c.Three-prong plug 2. 3.Needs to be reset 0000420277 00000 n endobj Both could have prevented the accident from occuring. 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. Quiz Question 10: Ground-fault circuit interrupters must be used for all of the following except? 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 OSHA Pros, LLC is an authorized provider of 360 Training, an OSHA-Accepted Provider, offering training and certification courses for NFPA 70E-Standard, and Equipment used in manner prescribed. 1452 25 2.Yes, because he is using a portable power tool. b.Electrical tools Extension cords are used to: 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. Unless you know otherwise, assume that overhead lines are energized. Additionally, the ground prong was missing and there was no GFCI protection. 0000005406 00000 n Which of the following can be the result of electric shock? Most of the hydrides of Group 1A and Group 2A metals are ionic. Question 3: If following lock out/tag out procedures, what step should be taken BEFORE you shut down the equipment? 0000427811 00000 n 0000001495 00000 n 0000057373 00000 n Electricity for power tools was supplied from an exterior 120-volt, grounded AC receptacle located at the back of the residence. b) By supplying GFCIs, or ground-fault circuit interrupters Suppose a volcano threw so much ash into the air that it blocked much of the sunlight. [, Do not modify cords or use them incorrectly. 2 0 obj Fatal electrocution is the main risk, but burns and falls from elevations are also hazards. b.Ground Fault Critical Interrupter Select the correct answer and then click DONE. -Grounding= a conductive connection to the earth which acts as a protective measure. Co-workers provided CPR, but were unable to revive the victim. Does the fall qualify as an electrical accident? g]+fn_m{mja_0Y w endstream endobj 189 0 obj <> endobj 190 0 obj <>stream 1.Missing 0000006152 00000 n This may damage your equipment and cause employee injuries. 4.Must be replaced, Always use a GFCI: <> <>>> The ________ keeps the electricity on its intended path through the conductor. Two of the extension cords had no ground prongs, and some of them were repaired with electrical tape. x_HSqnwmky54YLzeStJi# TZObFT*.#BQF/Q )KL3C?e%Y92$,]^)kmR/!8\ JF N'bT\U1+tc+&:'ZuGi!UeUrE [?CrU.&|#@Ed,=2UF]r/n/{v-;v>%/~;[*AxBU,-#!uyFGR,Wv[ cOzObnZfI4ob:pf "~ .iBE@mOs:Os5U9cnU` Vd"F'4Bm?>}hyRQyrX0U026h7#L'. 0000002385 00000 n endobj Out of several possible scenarios, the most likely was contact between the exposed wires of an extension cord and a screw that protruded from the receptacle, which had its face plate removed. Which of the following factors determine how severe an electrical injury might be? 0000108920 00000 n Select the choices that accurately define the common electrical term. 0000012360 00000 n Water 1.The humidity of the environment Of the following choices, which are frequent electrical hazards 2. She finds several available in the shop. 1) The _____ created the Occupational Safety and Health Administration (OSHA) to set and enforce protective workplace safety and health standards. gYpV:+ (See NFPA 70E-2021 Article 130 and OSHA subpart S part . Bob is asked to repair some overhead wiring, requiring the use a ladder. Becoming part of the circuit exposes you to ________, the most dangerous electrical hazard. Attaching ungrounded, two-prong adapter plugs to three-prong cords and tools. Identify the oxidizing and reducing agents. 0000013999 00000 n Even when the power system is properly grounded, electrical equipment can instantly change from safe to hazardous because of extreme conditions and rough treatment. 1.A source of electrical current to flow. One hand drill was not grounded, and the other had no safety plate. H\n@0vj@/R#tnvihavopnS1>v8Z6zLpOCRU.O^6pImjgk{xv6%zp\,{|7_WqNfhu09$U?kW}: }y}]OIL5~W*8D~%W-yww;sORYbfspA.%YJV L%=Kx&0W+ 0000013716 00000 n [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. 4.Circuit breakers, When inspecting power tools, look for: 2.Using an aluminum ladder when the possibility exists for contact with electricity. When the victim reached down to connect the choker to the hoist cable, he suddenly collapsed. 0000005042 00000 n c.The outlet. 4. Dust If you are touching any grounded material while using a power tool OSHA: Air Monitoring & Medical Surveillance, WebQuest: Biomes, Ecosystems and Habitats. q>NmnLNmb$"Iyx1bD9.~Ll. Computers 1.Pain 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. h|UnH}+i-. Muscular contraction and nerve damage occur; death likely. One handle has a deadman's switch. a.Electricity <>>> 4.Broken. Look for overhead power lines and buried power line indicators. 2. 2.Something to transport the electrical current -- A conductor. OSHA will keep all identities confidential. 3.Maintaining a safe distance of at least 10 feet from all overhead power lines. 3 0 obj D. Communicate the hazard to the crew and subs, use signs and bar E. Both C and D Q22. 4. Quiz Question 5: A/an ___________ is a unit of measurement for electrical resistance.
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