which of the following are electrical hazards osha quizletupenn fall 2022 courses

0000003715 00000 n Question 3: Employers are not required to enforce lock out/tag out practices in the workplaces. %PDF-1.4 % The scaffold had been constructed only 21 horizontal inches across from a 7,620-volt power line. The first worker knocked the auger off the victim, but saw that the electric cord was wrapped around the victim's thigh. 4 0 obj Attaching ungrounded, two-prong adapter plugs to three-prong cords and tools. 0000028595 00000 n 3.Tears De-energize and ground lines when working near them. The normal wear and tear on extension and flexible cords at your site can loosen or expose wires, creating hazardous conditions. Using a dry wood ladder when the possibility exists for contact with electricity. a) Ensure overhead power line safety Explain the purpose and use of the MyPlate symbol. Fire Ground all power supply systems, electrical circuits, and electrical equipment. 4.No, because he does not need to use an extension cord. 2.Yes, because he is using a portable power tool. Electricity will form a "path" or "loop". When the victim reached down to connect the choker to the hoist cable, he suddenly collapsed. c.15 feet a.Conductive objects Leaving or using electrical appliances near water - As electric current is transmitted faster in on wet surfaces, you stand a chance of getting an electric shock. Power was supplied through two extension cords from a nearby residence. 0000420277 00000 n Electrocution was the second leading cause of worker deaths on construction sites in the United States in 2011. 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. The \rule{1cm}{1pt} artery carries deoxygenated blood from the heart to the lungs. Flexible Cord Not 3-Wire, Hard Service Variety: A worker received a fatal shock when he was cutting drywall with a metal casing router. Get All Answers to OSHA 30 Construction Final Exam. OSHA: Air Monitoring & Medical Surveillance, 5 ANO - RETOMANDO ARTIGO, SUBSTANTIVO E ADJE. (C) Hot sticks. hb``b``=p0X8n0lY0L#rK[V26h* @0H!XDl+!&FfUfo`h6l 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. Death is probable. x_HSqnwmky54YLzeStJi# TZObFT*.#BQF/Q Electricity for power tools was supplied from an exterior 120-volt, grounded AC receptacle located at the back of the residence. Contact utilities for buried power line locations. 0000015549 00000 n endobj 3.Maintaining a safe distance of at least 10 feet from all overhead power lines. Explosion. a.Yes, as it is a mobile engine testing station. b.811 You can classify scales for weighing objects as those that use springs and those that use standard masses to balance unknown masses. 1.Using a fiberglass ladder when the possibility exists for contact with electricity. Frequently inspect electrical systems to insure that the path to ground is continuous. Is not broken, Question Text: Electrical tools should be grounded with a(n)________. 10,000 milliamps (10 amps) Cardiac arrest and severe burns occur. c. No, because the electricity is needed on a long-term basis. 0000013716 00000 n Quiz Question 2: Which is acceptable when using powdered tools? 0000001495 00000 n Ground metal parts of the following non-electrical equipment, as specified by the OSHA standard [, Frames and tracks of electrically operated. c) Age d. Power outlets, ________ are anything that can transmit electrical current. Dirk, a 28-year-old mechanic, is performing maintenance on a piece of equipment when he is shocked. Which group would be more accurate when used in an accelerating spaceship? 0000007464 00000 n 1.Is firmly connected Short In Power Saw/Ungrounded Temporary Power Supply: On July 10, 1986, a 22-year-old carpenter was working at the construction site of large apartment complex, using a portable electric saw to construct the wooden framework of a laundry building. To be safe, you must think about your job and plan for hazards. (A) Shotgun sticks. 3 0 obj De-energizing OSHA Pros, LLC is an authorized provider of 360 Training, an OSHA-Accepted Provider, offering training and certification courses for NFPA 70E-Standard, and 2.Is working properly A worker was removing a metal antenna when it made electrical contact with a 7200-volt power transmission line. s\A0W+ 1.Pain 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. Question 3: A/an ____________ is a unit of measurement for electrical resistance. Select the correct answer and then click DONE. Identify the oxidizing and reducing agents. hazard or that their employer is not following OSHA's rules. 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. Select the choices that accurately define the common electrical term. 3 0 obj gYpV:+ Potential hazards of electricity are preventable if you: Electricity must always travel in a(n) ________, ________ circuit. Among all of the safety measures that can and should be used to prevent electrical shock, which one is the most essential? The floor is covered in water and she is barefoot. 4.Circuit breakers, When inspecting power tools, look for: <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> 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. 1.Extension cords A Safety Electrical One Line Diagram should be used to _____ all sources of electrical energy. Look for overhead power lines and buried power line indicators. Potential hazards of electricity are preventable if you do which of the following listed below? Electrical safety quiz answers are given below. Select the correct answer and then click on DONE. 0000010155 00000 n b.Not wearing insulating shoes or boots when she was handling electrical equipment 2 0 obj Use the terms (freezing, gas, liquid, physical changes, solubility, solution, temperature, volume) to complete the sentence. Get resources on specific hazards and their control, including identification, risk assessment and inspections, to keep your workplace healthy and safe. -Wood. Explosion b. A doubly ionized lithium atom (Li2+,Z=3)\left(\mathrm{Li}^{2+}, \mathrm{Z}=3\right)(Li2+,Z=3) is in n=4n=4n=4 Bohr orbit. b.30,000 volts b.The tool's power cord. 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.10 feet 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 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. 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. 1. qnde>9!.,T2 :hw5 #OaPxkx=y7]J-yv*'H$jmVCq$ sx:R2$9SY+D!!LJ:n+.\#Hu~2VI O? 2. 1 0 obj An employee was texturing a wall using an air compressor. OSHA 10 - Exit Routes, Emergency Action Plans, The Analysis and Design of Linear Circuits, Albert J. Rosa, Gregory J. Toussaint, Roland E. Thomas. Use only equipment that is approved to meet OSHA standards. Most of the hydrides of Group 1A and Group 2A metals are ionic. When used on the moon? c. Inductive objects Which of the following are insulators of electricity? When an electric shock occurs, your muscles may: Question 3: If following lock out/tag out procedures, what step should be taken BEFORE you shut down the equipment? h|UnH}+i-. Find the volume of the parallelepiped determined by the vertices (1,1,1),(4,7,2) . trailer HJ=S~68438IR/:VR C Y<7H*$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 0000018681 00000 n 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. 0000006893 00000 n <> 1. Freeze 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. c. Extend the reach of the power tool. 1452 25 a) Door or window edges The auger has a one-quarter horsepower motor encased in a metal housing with two handles. a.Yes, because the electrical shock caused the fall. @*@;z}IAH@3MsgU1Dnf@agLahpCn@&b|-^;b0k*!3VYy,jy%( Z%|\Jg"dRp-Wbz3QJS%k9p_WtZ 0000003771 00000 n 1.Is faulty (See NFPA 70E-2021 Article 130 and OSHA subpart S part . Be sure equipment that has been shop fabricated or altered is in compliance. 2.Something to transport the electrical current -- A conductor. endobj A. wrap tape around the damaged spot to prevent electrical shocks. <<7628BB2D46738F42B2FC6393656F4718>]>> 0000014257 00000 n % To avoid injury or death, you must understand and recognize hazards. Question 2: Which of the following are ways . Co-workers provided CPR, but were unable to revive the victim. endobj A) Identify; Castigate; C) Evaluate; D) Modify; 3. xref [Flexible Cords and Power Tools]. Select the correct answer and then click DONE. Select the choices that accurately define the common electrical term. Outlets -Damage to internal organs. Select the correct answer and then click DONE. Before using the equipment, be sure that the ground wire: c.falls. Dust Provides information about the hazards that electrical workers may experience as a part of their jobs. 5>vB35Plm$\4{U[lU`t~.vJGmFO^@+ cGPzNY*oS(m%q{Agp The following are electrical hazards: Shock. !DP#vr-\DM<6V-2'I5l6)Z@^m=}c3-aUOo6rr V-Y3d6HABmjD $TQCvK*eg&|Y596#H\ c.911 Examples of Equipment That Can Contact Power Lines. Arc Flash. Select the correct answer and then click DONE. 0000004921 00000 n 0000001672 00000 n 0000004946 00000 n An OSHA inspection revealed that the tool's original power cord had been replaced with a flat cord, which was not designated for hard service, and that strain relief was not provided at the point where the cord entered the tool. Wearing a baseball cap . 3. Additionally, the ground prongs were missing from the two cords. 0000004274 00000 n Remove cords from receptacles by pulling on the plugs, not the cords. Is the west coast of Africa a plate boundary? Both could have prevented the accident from occuring. Use only cords, connection devices, and fittings that are equipped with strain relief. Occupational Safety & Health Administration, Death Due to Lack of Ground-Fault Protection, Deaths Due to Missing or Discontinuous Path to Ground, Deaths Due to Equipment Not Used in Manner Prescribed, Deaths Due to Improper Use of Extension and Flexible Cords, Occupational Safety and Health Administration, Outreach Training Program (10- and 30-hour Cards), OSHA Training Institute Education Centers, Improper use of extension and flexible cords, Electrical Safety: Safety and Health for Electrical Trades Student Manual, ground-fault circuit interrupters (GFCI)s, assured equipment grounding conductor program (AEGCP), Electricity and Tree Care Work A Deadly Combination, Working Safely Around Downed Electrical Wires, Electrical Safety Hazards of Overloading Cable Trays, Small Business Safety and Health Handbook, Fire Fighters Exposed to Electrical Hazards During Wildland Fire Operations, Fatality Assessment and Control Evaluation (FACE) Program, NIOSH Face Reports Indexed by Industry or Cause of Fatality, Worker Deaths by Electrocution: A Summary of Surveillance Findings and Investigative Case Reports, Severe Storm and Flood Recovery Assistance. =EAn`u!d, |\~Y>ZF( dnLN\2vP6 >sSjgh2:Lmqx#a[G2{h$zW]_:@Lvr)2T:R-/ `&~O4j)>1P*M 5>F:1B.g!AR RZyd 0000001604 00000 n [29 CFR 1926.416(a)(1)]. 2.Skin 3. As he removed the forms, he wrapped them with a length of cable called a choker, which was to be attached to a crane. a.311 )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'. 3.Vapor When it completes a circuit through the body. Electricity becomes hazardous when it takes an unintended path to complete the ________. 0000005632 00000 n 4 0 obj 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. Cardiac arrest or death - A result of electrical shock. When selecting the right extension cord, a good rule of thumb is to match the thickness of the extension cord to the thickness of: 2.Loose bolts 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. b.Electrical tools 0000005050 00000 n Which of the following injuries can occur when muscles flex or twitch from an electrical shock? 0000000816 00000 n A. indoors. Test your knowledge with our electrical safety quiz below. 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. The individual's perspiration-soaked clothing/body contacted bare exposed conductors on one of the cords, causing an electrocution. It is important to note that NFPA 70E is a . 0000006152 00000 n Work performed on an electrical system within reaching distance of energized components is_____work. Two of the extension cords had no ground prongs, and some of them were repaired with electrical tape. Lx*jWP# /c2)|]NXqAx>=~'[ specifically addresses electrical protective devices. 3.Loose nuts 0000000816 00000 n Ground all exposed metal parts of equipment. As she is adding in the chemicals, her hand touches the motor and it becomes energized. Electric current cannot exist without an unbroken path to and from the conductor. 1.Fingernails 0000008392 00000 n 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. :$#k9BPnZ{Qqe/reKy,'ZlB# x=k6S *ywvkDyb_w rg&@Q5/^4O_~w/]7[xqs7Zt?LK-,>W\W`Mb?n8\.vpOJA7~5R%.oJd|Bbv7biQH%^~C=m3_ov{8] }C.Se={o7H[w@/^j BgXRC/O/eiLHiN\4~7x=^J@|]zu"x]lQ-+.xF=oY +B?jSl|(agF_].+UH\!/;AU .cG!h@42 iqnkZtdc#^)AX96(wFZ,RP{[\j\aJgc) diV;BNzZge(}=0Pj Qp@"]yOnNw89

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