which of the following are electrical hazards osha quizlet

BIOLOGICAL HAZARDS: term effects) and strain (longAssociated with working with animals, people, or infectious plant materials. [, Do not modify cords or use them incorrectly. 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. 3.Cramp It is important to note that NFPA 70E is a . To be safe, you must think about your job and plan for hazards. 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. 0000002733 00000 n She finds several available in the shop. A. indoors. Using modified cords or tools, e.g., removing ground prongs, face plates, insulation, etc. hazard or that their employer is not following OSHA's rules. An examination revealed that the spring, cover plate, and part of the melamine casing were missing from the face of the female connector (the spring and some melamine fragments were found at the accident site). 1.Fingernails Which of the following injuries can occur when muscles flex or twitch from an electrical shock? 0000001896 00000 n When he grasped the handle of the bucket to pull it down, the crane cable came into contact with the overhead line. 2.Something to transport the electrical current -- A conductor. Adapter For 3-Prong Cord Not Grounded To Outlet: On May 27, 1986, two workers were using a 110-volt auger to install tie-down rods for a manufactured home. 3.The length of time the body is in contact with electricity 0000010603 00000 n In addition to contact with power lines, the top electrical hazards include: 1.Is faulty 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. d.Metal, Over half of all deaths caused by electricity result from contact with ________. What three things must be present for a current to flow through a conductor. OSHA will keep all identities confidential. 0000003640 00000 n Which group would be more accurate when used in an accelerating spaceship? 0000002403 00000 n Select the correct answer and then click DONE. 0000421627 00000 n Question 2: Which of the following are ways . No GFCI's were used. Examples Of Electrical Hazards. Electrical hazards expose workers to the following: Burns: Three types; electrical, arc flash, or thermal contact. 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 Cardiac arrest or death - A result of electrical shock. Use only cords, connection devices, and fittings that are equipped with strain relief. 0000012944 00000 n <<7628BB2D46738F42B2FC6393656F4718>]>> The pole had not been inspected by the city and was not in compliance with code requirements (it was not grounded). Electricity to operate portable power tools was supplied by a temporary service pole 50 feet away. vpfuI)],s ZR)!=w|; @uT C0? <> 2.Loss of muscle control Use only extension cords that are 3-wire type. b.Electrical tools 0000017163 00000 n Electrical hazards are life threatening incidents that could happen due to electricity. a.Shut off power within a fraction of a second The individual's perspiration-soaked clothing/body contacted bare exposed conductors on one of the cords, causing an electrocution. 1. b.Yes, because Bob was on . 4. gYpV:+ Ajay needs to use a dewatering pump to drain standing water on a construction site. Gloves used for electrical work must be inspected and tested prior to use, and be certified every: A. 0000005716 00000 n Easy to identify OSHA 10 General Industry Topic Exams Answer Key TOPIC EXAM 1: INTRO TO OSHA 1. Freeze Get resources on specific hazards and their control, including identification, risk assessment and inspections, to keep your workplace healthy and safe. If you are touching any grounded material while using a power tool 0000005050 00000 n View Answer Answer: 600v 4 . 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. This caused him to fall from the ladder and land in a puddle of water, still holding the saw. 0000013999 00000 n Is not painted over Then answer the questions below. 0000017336 00000 n 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. Both could have prevented the accident from occuring. Select the choices that accurately define the common electrical term. 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. Select the correct answer and then click DONE. Unless you know otherwise, assume that overhead lines are energized. )KL3C?e%Y92$,]^)kmR/!8\ JF N'bT\U1+tc+&:'ZuGi!UeUrE [?CrU.&|#@Ed,=2UF]r/n/{v-;v>%/~;[*AxBU,-#!uyFGR,Wv[ cOzObnZfI4ob:pf "~ .iBE@mOs:Os5U9cnU` Vd"F'4Bm?>}hyRQyrX0U026h7#L'. 1.Clench As the victim climbed down a makeshift ladder, he shifted the saw from his right hand to his left, and was shocked. . Stay at least 10 feet away from overhead power lines. Electrical hazards like frayed cords, missing ground pins, improper wiring or the harm that these hazards pose. ( A worker was removing a metal antenna when it made electrical contact with a 7200-volt power transmission line. Becoming part of the circuit exposes you to ________, the most dangerous electrical hazard. Death is probable. The \rule{1cm}{1pt} artery carries deoxygenated blood from the heart to the lungs. Which of the following are conductor of electricity? <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 792 612] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> a.Conductive objects Additionally, the ground prong was missing and there was no GFCI protection. 0000420564 00000 n Select the correct answer and then click DONE. Question 4: Which of the following is a type of burn caused by electrical hazards? a) Door or window edges The source of the electricity was apparently a short in a receptacle, but examination revealed that the electrical equipment used by the contractor was in such poor condition that it was impossible to make a certain determination of the source of the short. RZyd 2.Grease 2. 5.Twitch, Electrical shock may result in: a.related to muscle damage. 5>vB35Plm$\4{U[lU`t~.vJGmFO^@+ cGPzNY*oS(m%q{Agp OSHA 10 - Exit Routes, Emergency Action Plans, The Analysis and Design of Linear Circuits, Albert J. Rosa, Gregory J. Toussaint, Roland E. Thomas. 0000089142 00000 n specifically addresses electrical protective devices. 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. . -Falls. 0000004274 00000 n 0000057373 00000 n Select the correct answer and then click DONE. [. Best practices with power lines include: Hazards are created when cords, cord connectors, receptacles, and cord- and plug connected equipment are improperly used and maintained. The NEC C. Suggestions Electricity for power tools was supplied from an exterior 120-volt, grounded AC receptacle located at the back of the residence. Select the choices that accurately define the common electrical term. 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. Frequently inspect electrical systems to insure that the path to ground is continuous. c.A measurement of electricity 1. BE SAFE! 4.Organs, The presence of ________ can turn you, your equipment, or insulators like wood into conductors. Burns. 0000005406 00000 n There were no eyewitnesses to the accident, but evidence suggests that while the victim was handling the damaged and energized extension cord, he provided a "path to ground" and was electrocuted. 12 months C. 6 months D. Never Q23. a.20,000 volts 0000009628 00000 n Electrical Safety Quiz Electrical safety is an important topic that you and your workers need to know about. h|UnH}+i-. The auger has a one-quarter horsepower motor encased in a metal housing with two handles. OSHA 29 CFR 1910.147 . A. wrap tape around the damaged spot to prevent electrical shocks. a.A small current 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. Take any defective equipment out of service. Select the correct answer and then click DONE. [Power Tools]. a.Supply power for tools or equipment on a temporary or short-term basis. 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: 3. stream 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. Using multi-receptacle boxes designed to be. Extension cords may become a trip hazard when: Using circuit breakers or fuses with the wrong rating for over-current protection, e.g. 0000002479 00000 n 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. Question 2: Which of the following are ways employers must protect their employees on the workplace? Besides personal bodily injury, what other electrical hazards can be found in the workplace? Electrical safety quiz answers are given below. (See NFPA 70E-2021 Article 130 and OSHA subpart S part 1910.333 (a) (1)- (2) and (c) for complete details.) Study with Quizlet and memorize flashcards containing terms like Bob is asked to repair some overhead wiring, requiring the use a ladder. B. stream Using equipment outdoors that is labeled for use only in dry, indoor locations. 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. Before using the equipment, be sure that the ground wire: a.Standing in water b.burns. The workers administered CPR to the victim, but to no avail. Regarding hand protection employers should: A. Check your employee's electrical safety knowledge through an electrical safety quiz. a.Electricity b.811 0000001814 00000 n 0000006893 00000 n 4.Combustible dust, Fundamentals of Engineering Economic Analysis, David Besanko, Mark Shanley, Scott Schaefer. Question 3: Employers are not required to enforce lock out/tag out practices in the workplaces. 0000001604 00000 n As she is adding in the chemicals, her hand touches the motor and it becomes energized. c. No, because the electricity is needed on a long-term basis. 0000414648 00000 n uVNSF!UTRQ91uR,6@hCH}]GAlaPh)NeT$iQ89S9|?4wahU ltz9 PH[$I&VX9WG%K~1{u8M:D"+HLEy 3@NR^z!rB^?RyOj;'Lof. Electricity will form a "path" or "loop". Select the correct answer and then click DONE. Protection is lost because it will not trip when the system's load has been exceeded. 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. The insulation on the extension cord was cut through and exposed bare, energized conductors which made contact with the ladder. %PDF-1.4 % Effective means of controlling power line hazards include: %PDF-1.4 % *Effects are for voltages less than about 600 volts. The length of time the body is in the circuit, in contact with electricity - Factor determining the severity of an electrical . 2.Grounding 0000055319 00000 n Continually audit cords on-site. Provides information about the hazards that electrical workers may experience as a part of their jobs. 1.Pain Attaching ungrounded, two-prong adapter plugs to three-prong cords and tools. c.The outlet. 4 0 obj It's okay to use extension cords with worn insulation, as . 4.Damaged cover or insulation, When using electric-powered hand tools, do not overload: The presence of ______ can turn you, your equipment, or insulators like wood, into conductors. 0000003771 00000 n d. 20 feet. The small electrical current enters his body through his left leg. d.Ground Fault Circuit Interrupter, : Another electrical hazard that can cause injury or death in the workplace is a ________ path to ground. d.Alert workers of any water in the area, GFCI is an acronym for: 2. a) Ensure overhead power line safety Computers Be sure equipment that has been shop fabricated or altered is in compliance. How might this event affect the ability of animals to obtain energy to live? Electricity to the auger was supplied by a series of 50-foot extension cords running to an adjacent property. Quiz: Electrical Hazards. 0000002876 00000 n The normal wear and tear on extension and flexible cords at your site can loosen or expose wires, creating hazardous conditions. 2.The person's physical condition %PDF-1.4 % c.15 feet 2. Two of the extension cords had no ground prongs, and some of them were repaired with electrical tape. When the victim reached down to connect the choker to the hoist cable, he suddenly collapsed. 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. Electricity becomes hazardous when it takes an unintended path to complete the ________. De-energizing Quiz Question 7: Which is not an insulator? 0000421920 00000 n lex has set up a mobile engine testing station in the maintenance area. d.50,000 volts. Identify the oxidizing and reducing agents. xb```VVF A10p,``Pp`hhdpn``r`L:[ I,aZ4Knj21 `ny; Ge7t@OrMx)"cx&e:[~J%aUJ\*t d.The body of the power tool. Quiz Question 5: A/an ___________ is a unit of measurement for electrical resistance. Follow manufacturers' recommended testing procedure to insure GFCI is working correctly. How will she choose the correct cord? Electrical current travels through insulated ________. a.Two-prong plug 0000007464 00000 n Question 1: Which of the following is a danger of electricity? endobj 2.Yes, because he is using a portable power tool. Water he most common shock-related injuries are: 2.Loose bolts Best Practices with Power Lines 1. 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. <>>> 2. c.40,000 volts c. Inductive objects He plans to use it over a period of at least six months. 3.Maintaining a safe distance of at least 10 feet from all overhead power lines. 1.Using a fiberglass ladder when the possibility exists for contact with electricity. qnde>9!.,T2 :hw5 #OaPxkx=y7]J-yv*'H$jmVCq$ sx:R2$9SY+D!!LJ:n+.\#Hu~2VI O? 0000007427 00000 n Quiz Question 9: Conductor insulation must be approved for the ___________ of use? 3.No, because he will not be touching any grounded material when using the tool. Which of the following part of you body can burn if you come in contact with electricity? b.30,000 volts 0000005632 00000 n c.Guaranteed Fault Circuit Interrupter Used across walkways. Switch Question 3: If following lock out/tag out procedures, what step should be taken BEFORE you shut down the equipment? 4. When it completes a circuit through the body. Most of the hydrides of Group 1A and Group 2A metals are ionic. 4 0 obj hb``b``=p0X8n0lY0L#rK[V26h* @0H!XDl+!&FfUfo`h6l Other protective measures include guarding or insulating the lines. When inspecting extension cords, look for: Flexible Cord Not 3-Wire, Hard Service Variety: A worker received a fatal shock when he was cutting drywall with a metal casing router. You should? %PDF-1.5 I;C`_;LV'd,|#H--e`( ')'RpAgA7O`?%68SB 0000419562 00000 n 0000024814 00000 n endobj 4.Cardiac arrest 4.Running through doorways. The following are electrical hazards: Shock. 0000004793 00000 n Dirk, a 28-year-old mechanic, is performing maintenance on a piece of equipment when he is shocked. The victim was totally deaf in one ear and suffered diminished hearing in the other. One worker, holding the deadman's switch, received a shock from a ground fault in the auger and was knocked back from the machine. 0000004946 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. The victim provided a path to ground and was electrocuted. The auger then fell across the other worker, the 24-year-old victim. 0000005042 00000 n d. Power outlets, ________ are anything that can transmit electrical current. A) 120v . What is the minimum clearance distance you must maintain from the power lines? Electrical safety requirements necessary for the practical safeguarding of employees in the workplace. xref 0000000816 00000 n Carly needs to use an extension cord with her corded nail gun. d. heart attacks. 1.The humidity of the environment 3.Needs to be reset 3.Draped over equipment. Which of the following are insulators of electricity? Match the length from job to outlet. 1. 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. Look for overhead power lines and buried power line indicators. Apparently, his hand contracted and he was "locked" to the saw. 2.Flooding -Rubber. trailer b+t6W' te+.W_{8u7Dt@1c. 5 feet Select the correct answer and then click DONE. (B) Switch sticks. 3.Vapor c.Three-prong plug -Glass. -Conductor= permits the free flow of electricity. 1. 0000001672 00000 n What was Latoya's first mistake? 3. 0000007694 00000 n Draw a line from the item on the left that corresponds to the match on the right. :$#k9BPnZ{Qqe/reKy,'ZlB# Intentionally creating a low-resistance path that connects to the earth. Remove cords from receptacles by pulling on the plugs, not the cords. Equipment used in manner prescribed. Work performed on an electrical system within reaching distance of energized components is_____work. 0000002150 00000 n Lockout/tagout procedures. Using the wrong light bulb wattage; Overloading power strips and outlets; Unprotected electrical outlets; Poor wiring; Defective electrical wires trailer <<11AC4BACEBCA4B32A885F1120BD3A307>]>> startxref 0 %%EOF 153 0 obj <>stream d.Constructive objects, Select all answers that apply to the following statement and then click DONE. The light fixture, which served as a ground, was known to be faulty for at least 5 months before the incident. -Severe skin burns. (A) Shotgun sticks. 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? d/E \VZvl$Y#nH,EIm /\"BQ>Rkl6xZWtAgfs Select the correct answer and then click DONE. The victim was part of a crew that was constructing a concrete wall. 0000011060 00000 n Looking for NFPA 70E Certification? Many workers are unaware of the potential electrical hazards present in their work environment, which makes them more vulnerable to the danger of electrocution. 1 0 obj As he is working on the wiring, he receives an electrical shock that knocks him backward and causes him to fall off the ladder. 3. The following references aid in recognizing hazards associated with electrical work. If the electrical conductors become exposed, there is a danger of shocks, burns, or fire. Study with Quizlet and memorize flashcards containing terms like OSHA's electrical standards are based on: A. ANSI standards B. 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. Noise, : ________ or heavy perspiration can cause electricity to take an unintended path. a.311 [Flexible Cords and Power Tools]. a.Your thumb. !DP#vr-\DM<6V-2'I5l6)Z@^m=}c3-aUOo6rr V-Y3d6HABmjD $TQCvK*eg&|Y596#H\

which of the following are electrical hazards osha quizlet 2023