% 0000003715 00000 n d. heart attacks. s\A0W+ She has an older drill with a steel housing and a 3-prong plug. 0000427811 00000 n 3.Cramp a.Supply power for tools or equipment on a temporary or short-term basis. Intentionally creating a low-resistance path that connects to the earth. b) By supplying GFCIs, or ground-fault circuit interrupters Electrical Hazards Electrical hazards can be found in nearly every roofing work site. [. 30 days B. Using tools and equipment that can contact power lines increases the risk. When the victim reached down to connect the choker to the hoist cable, he suddenly collapsed. gYpV:+ 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. 0000009628 00000 n SCENARIO: You encounter a co-worker on a residential remodeling job. 3.ack of ground fault protection. Question 4: When a worker receives an electric shock, first aid must start within ___________ minutes. @*@;z}IAH@3MsgU1Dnf@agLahpCn@&b|-^;b0k*!3VYy,jy%( Z%|\Jg"dRp-Wbz3QJS%k9p_WtZ 12 months C. 6 months D. Never Q23. 0000003900 00000 n b) Staples The factors that determine the severity of an electrical injury include: Is not painted over BIOLOGICAL HAZARDS: term effects) and strain (longAssociated with working with animals, people, or infectious plant materials. Working with electricity can be dangerous. 0000003640 00000 n b.Shut off power within five minutes of the imbalance lb MKS a.Two-prong plug Question 3: If following lock out/tag out procedures, what step should be taken BEFORE you shut down the equipment? c. Inductive objects 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. Select the correct answer and then click DONE. 4.Cardiac arrest The following are electrical hazards: Shock. 0000007427 00000 n Electrical hazards expose workers to the following: Burns: Three types; electrical, arc flash, or thermal contact. b.811 0000002386 00000 n 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. Extension cords may become a trip hazard when: 3.Loss of eyesight 4.Broken. -Grounding= a conductive connection to the earth which acts as a protective measure. d.Add more outlets. 5.Twitch, Electrical shock may result in: 1.Missing or broken path to ground. [, Do not modify cords or use them incorrectly. Muscular contraction and nerve damage occur; death likely. 0000003603 00000 n OSHA CONSTRUCTION FINAL EXAM Question and Answer Part 10. ly/homeo3b700 Which of the following is a resource within the. hb``b``=p0X8n0lY0L#rK[V26h* @0H!XDl+!&FfUfo`h6l 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. 4.No, because he does not need to use an extension cord. Water Question 4: Which of the following is a type of burn caused by electrical hazards? OSHA 29 CFR 1910, Subpart P . What is the output of the program in Exercise 17, if first = 26 and second = 8? 2.Yes, because he is using a portable power tool. The victim collapsed into the lake and sank 4-1/2 feet to the bottom. b.burns. Determine duration, frequency, degree of exposure to hazards and physical stress. 0000003771 00000 n Additional minimum clearance distance is required for power lines carrying over ________. 4,600. 0000421920 00000 n 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 She finds several available in the shop. 2 0 obj 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. 0000000016 00000 n 3. The modification of the plug was not an intended use or prescribed by the manufacturer. d.50,000 volts. Additionally, the ground prongs were missing from the two cords. 1.Using a fiberglass ladder when the possibility exists for contact with electricity. When current travels through your body - Definition of electric shock. a.Ground Fault Circuit Insulator Use only equipment that is approved to meet OSHA standards. 4. 3.Draped over equipment. 0000014257 00000 n Select the correct answer and then click on DONE. 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. 3 0 obj When used on the moon? c) Age 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. Dirk, a 28-year-old mechanic, is performing maintenance on a piece of equipment when he is shocked. 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. [, Use all equipment according to the manufacturer's instructions. A Safety Electrical One Line Diagram should be used to _____ all sources of electrical energy. Ground metal parts of the following non-electrical equipment, as specified by the OSHA standard [, Frames and tracks of electrically operated. 0000001908 00000 n Electrical current travels through insulated ________. 0000012360 00000 n H\n@0vj@/R#tnvihavopnS1>v8Z6zLpOCRU.O^6pImjgk{xv6%zp\,{|7_WqNfhu09$U?kW}: }y}]OIL5~W*8D~%W-yww;sORYbfspA.%YJV L%=Kx&0W+ =EAn`u!d, |\~Y>ZF( dnLN\2vP6 >sSjgh2:Lmqx#a[G2{h$zW]_:@Lvr)2T:R-/ `&~O4j)>1P*M 5>F:1B.g!AR OSHA Safety and Health Topics Page. When he grasped the handle of the bucket to pull it down, the crane cable came into contact with the overhead line. 2.Loss of muscle control <> A 56-year-old construction laborer was removing forms from a concrete wall poured several days earlier. The victim signaled the operator of the crane to extend the boom and lower the hoist cable. 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. RZyd 1.When you are using electricity near water 3 0 obj [Power Tools]. 1. 3.Vapor 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. One worker, holding the deadman's switch, received a shock from a ground fault in the auger and was knocked back from the machine. 2.Loose bolts The source of the shocks -- the saw -- was not replaced. c.falls. :$#k9BPnZ{Qqe/reKy,'ZlB# 2. A. wrap tape around the damaged spot to prevent electrical shocks. startxref Ajay needs to use a dewatering pump to drain standing water on a construction site. Improper Use of Extension and Flexible Cords. Does the fall qualify as an electrical accident? Electrical safety quiz answers are given below. Examples of Equipment That Can Contact Power Lines. d) All of the above. As she is adding in the chemicals, her hand touches the motor and it becomes energized. trailer <<11AC4BACEBCA4B32A885F1120BD3A307>]>> startxref 0 %%EOF 153 0 obj <>stream Post warning signs. Explain the purpose and use of the MyPlate symbol. specifically addresses electrical protective devices. 0000004444 00000 n d.A power tool, A GFCI is designed to: <> Most of the hydrides of Group 1A and Group 2A metals are ionic. c.Power lines 2. 0000018681 00000 n D 600v. 0000420564 00000 n Best Practices with Power Lines 1. 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. Looking for NFPA 70E Certification? 2. 2. c.Touching the motor 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: 3.Clear stream 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. The scaffold had been constructed only 21 horizontal inches across from a 7,620-volt power line. 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 . 2.Skin If a worker has been retaliated against for using their rights, they HWMo#7v#h>6,Z4- 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 d.Metal, Over half of all deaths caused by electricity result from contact with ________. 4.Organs, The presence of ________ can turn you, your equipment, or insulators like wood into conductors. d.Ground Fault Circuit Interrupter, : Another electrical hazard that can cause injury or death in the workplace is a ________ path to ground. 4. Contact utilities for buried power line locations. Identify the oxidizing and reducing agents. xYmo -ER/&@[D,_! C 277v. b. What is the minimum clearance distance you must maintain from the power lines? True. 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. 1. Select the correct answer and then click DONE. d/E \VZvl$Y#nH,EIm /\"BQ>Rkl6xZWtAgfs a.A small current Overview. Draw a line from the item on the left that corresponds to the match on the right. A worker was removing a metal antenna when it made electrical contact with a 7200-volt power transmission line. Select the correct answer and then click DONE. 1.Is firmly connected b.Not wearing insulating shoes or boots when she was handling electrical equipment What was Latoya's first mistake? Hand-operated metal shifting ropes or cables of electric elevators. Additionally, the ground prong was missing and there was no GFCI protection. 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). Take any defective equipment out of service. Electricity becomes hazardous when it takes an unintended path to complete the ________. 1.Is faulty Fatal electrocution is the main risk, but burns and falls from elevations are also hazards. 0000004208 00000 n Work performed on an electrical system within reaching distance of energized components is_____work. (See NFPA 70E-2021 Article 130 and OSHA subpart S part 1910.333 (a) (1)- (2) and (c) for complete details.) Ground all exposed metal parts of equipment. 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. 1452 0 obj <> endobj 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. 0000005734 00000 n Apparently, his hand contracted and he was "locked" to the saw. This may damage your equipment and cause employee injuries. Remove from service any equipment with frayed cords, missing ground prongs, cracked tool casings, etc. 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. (a) Describe the reaction between the hydride ion and water in terms of a Bronsted acid-base reaction. 0000006152 00000 n The router's 3-wire power cord was spliced to a 2-wire cord and plug set which was not rated for hard service. If the insulation on the tool's power cord is damaged and you touch this area while grounded, the electricity will ________. Visually inspect all electrical equipment before use. 2.Placed along a wall. A. indoors. 0000004273 00000 n C. near water. To avoid injury or death, you must understand and recognize hazards. 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. Study with Quizlet and memorize flashcards containing terms like OSHA's electrical standards are based on: A. ANSI standards B. <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 792 612] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> 0000414648 00000 n Electricity to the auger was supplied by a series of 50-foot extension cords running to an adjacent property. A) 120v . 0000024814 00000 n 182 0 obj <> endobj xref 182 41 0000000016 00000 n 0000007694 00000 n 2.The person's physical condition Carly needs to use an extension cord with her corded nail gun. H. 0000001604 00000 n 0000108920 00000 n -Voltage= a measure of electrical force. 0000005050 00000 n Frames of non-electrically driven elevator cars to which electric conductors are attached. 0000068035 00000 n lex has set up a mobile engine testing station in the maintenance area. 3. Explosion. A 29-year-old worker was electrocuted when he pushed a crane cable into a 7,200-volt power line. 0000110659 00000 n 0000006866 00000 n Best practices with power lines include: c. Extend the reach of the power tool. 0000421627 00000 n 1.Pain The ________ keeps the electricity on its intended path through the conductor. Select the correct answer and then click DONE. He yelled for his co-workers to disconnect the power, which they did. Fire 1. Even when the power system is properly grounded, electrical equipment can instantly change from safe to hazardous because of extreme conditions and rough treatment. Freeze One hand drill was not grounded, and the other had no safety plate. 0000001495 00000 n b.Match the thickness of the extension cord to the thickness of the nail gun's power cord. hazard or that their employer is not following OSHA's rules. When it completes a circuit through the body. d. Power outlets, ________ are anything that can transmit electrical current. c.15 feet What is the primary purpose of properly grounding equipment? h|UnH}+i-. 0000001116 00000 n When selecting the right extension cord, a good rule of thumb is to match the thickness of the extension cord to the thickness of: 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. 0000005406 00000 n 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. The ground wire was not attached on the male end of the cord's plug. What factors determine the severity of Dirk's injuries? c.Wood Select the correct answer and then click DONE. a. Use the terms (freezing, gas, liquid, physical changes, solubility, solution, temperature, volume) to complete the sentence. Short Confined spaces Machinery-related hazards (lockout/tagout, boiler safety, forklifts, etc.) 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. Electricity will form a "path" or "loop". 2 0 obj Quiz Question 7: Which is not an insulator? Select the correct answer and then click DONE. The \rule{1cm}{1pt} artery carries deoxygenated blood from the heart to the lungs. 4 0 obj 0000012944 00000 n 0000005042 00000 n The contact lasts for 5 seconds before someone is able to shut off the power. How fast would the ball be moving at the moment of release? Cardiac arrest or death - A result of electrical shock. 0000108653 00000 n You need to evaluate the situation you are in and assess your . 0000001896 00000 n . 0000419562 00000 n c.The outlet. The presence of ______ can turn you, your equipment, or insulators like wood, into conductors. Using cords or tools with worn insulation or exposed wires. <>>> Select the correct answer and then click DONE. A) Identify; Castigate; C) Evaluate; D) Modify; 3. 1. 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. d. No, because an extension cord would not provide enough power. a.311 3. 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. 1. a.Conductive objects 0000005520 00000 n When inspecting extension cords, look for: . 0000007464 00000 n 1.The humidity of the environment 4.Dirt build-up, Use only approved and authorized power tools in areas where the following hazards may be present: d. 20 feet. Question 2: Which of the following is NOT a category of electrical burns? 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. trailer <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> Quiz Question 6: Which of these is not a type of Ground Fault Circuit Adapter? Provides information about the hazards that electrical workers may experience as a part of their jobs. Question 1: Each year, approximately __________ workers suffer from electricity related injuries. -Wood. True. 0000017336 00000 n A measure of the energy of motion of the particles in a substance is its _____. 0000011060 00000 n Regarding hand protection employers should: A. Visually inspect all electrical equipment before use. b.Electrical tools 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. Dust Outlets Exercise their rights under the law without retaliation, including reporting an injury or raising health and safety concerns with their employer or OSHA. )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'. 0000420277 00000 n Electrical Safety Multiple Choice Questions and Answers for competitive exams. You discover the electrical cord on a drill has been damaged and some of the cord's insulation is missing. Stay at least 10 feet away from overhead power lines. Yes, because he will be using electricity near water. c.Absorb any water around the area Potential hazards of electricity are preventable if you: Electricity must always travel in a(n) ________, ________ circuit. 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. While attempting to unplug the compressor from the extension cord, the employee was fatally shocked. 0000001672 00000 n Unless you know otherwise, assume that overhead lines are energized. 3.Body tissue Noise, : ________ or heavy perspiration can cause electricity to take an unintended path. Use non-conductive wood or fiberglass ladders when working near power lines. He may have dropped the extension cord at the site and not heard the connector break. |tYny@YE>LkNj4-czZf"Usw>j\sv3fn},>},KeA s 0000013716 00000 n 4. This caused him to fall from the ladder and land in a puddle of water, still holding the saw. he most common shock-related injuries are: 0000010603 00000 n 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. Question 2: It's okay to use extension cords with worn insulation, as long as you are careful about it. The light fixture, which served as a ground, was known to be faulty for at least 5 months before the incident. Many workers are unaware of the potential electrical hazards present in their work environment, which makes them more vulnerable to the danger of electrocution. Lockout/tagout procedures. 0000008392 00000 n 0000004965 00000 n Which of the following are conductor of electricity? Quiz Question 4: Which is a preventive measure to prevent hazards while working with power lines? 0000002385 00000 n Besides personal bodily injury, what other electrical hazards can be found in the workplace? uVNSF!UTRQ91uR,6@hCH}]GAlaPh)NeT$iQ89S9|?4wahU ltz9 PH[$I&VX9WG%K~1{u8M:D"+HLEy 3@NR^z!rB^?RyOj;'Lof. B 208v. Electrical Contractors Industry. To verify an electrically safe work condition, all these conditions should be confirmed EXCEPT: Effective training of employees includes all of the following EXCEPT: How to operate power tools in wet conditions. DHPP0MHLHIPPXc f2LXL"dgJ:@ ys`llr-shH,Y@Z 23J0a_TXD;X,;&0i,i&f&T8h R/ v`,l. 440!2D9482q={LPXs +( endstream endobj 129 0 obj <> endobj 130 0 obj <> endobj 131 0 obj <>/ColorSpace<>/Font<>/ProcSet[/PDF/Text/ImageB]/ExtGState<>>> endobj 132 0 obj <> endobj 133 0 obj <> endobj 134 0 obj <> endobj 135 0 obj <>stream 0000056642 00000 n 0000055319 00000 n 5>vB35Plm$\4{U[lU`t~.vJGmFO^@+ cGPzNY*oS(m%q{Agp gYpV:+ 0000000816 00000 n Attaching ungrounded, two-prong adapter plugs to three-prong cords and tools. 4.The amount of current, An electrical burn may affect: Becoming part of the circuit exposes you to ________, the most dangerous electrical hazard. a.Electricity 2.Complete 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. c.Gasoline g]+fn_m{mja_0Y w endstream endobj 189 0 obj <> endobj 190 0 obj <>stream 2.Using an aluminum ladder when the possibility exists for contact with electricity. 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). The victim was part of a crew that was constructing a concrete wall. . Test your knowledge with our electrical safety quiz below. As he removed the forms, he wrapped them with a length of cable called a choker, which was to be attached to a crane. xref -Conductor= permits the free flow of electricity. Quiz Question 5: A/an ___________ is a unit of measurement for electrical resistance. Use only cords, connection devices, and fittings that are equipped with strain relief. 0000002479 00000 n d.Adapter, What is a GFCI? As he is working on the wiring, he receives an electrical shock that knocks him backward and causes him to fall off the ladder. c.911 2.Loose screws As he is working on the wiring, he receives an electrical shock that knocks him backward and causes him to fall off the ladder. a.Shut off power within a fraction of a second Question 1: Which of these is a type of Ground Fault Circuit Adapter? Bob is asked to repair some overhead wiring, requiring the use a ladder. Examples Of Electrical Hazards. Using a dry wood ladder when the possibility exists for contact with electricity. Using equipment outdoors that is labeled for use only in dry, indoor locations. Arc Flash. 3.Something that causes current to flow through the . (D) None of the above. -Severe skin burns. Extension cords had poor splices, no grounds, and reversed polarity. What type of burns are the result of current flowing through and exiting the body? 4. A 120v. An employee was texturing a wall using an air compressor. Select the correct answer and then click DONE. The accident site was wet; also, humidity was high and the victim was sweating. Underground electrical hazards are: A. %%EOF 0000002557 00000 n 1476 0 obj <>stream 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. Using modified cords or tools, e.g., removing ground prongs, face plates, insulation, etc. Which of the following can be the result of electric shock? Select the choices that accurately define the common electrical term. 2.Grounding [Flexible Cords and Power Tools]. 4.Flex 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. Communicate the hazard to the crew and subs, use signs and bar E. Both C and D Q22. In addition to contact with power lines, the top electrical hazards include: stream Question 2: Which of the following are ways . -Rubber. and more. c.Three-prong plug (See NFPA 70E-2021 Article 130 and OSHA subpart S part . -Current= the movement of electrical charge. 1.Fingernails Others, such as office workers and sales people, work with electricity indirectly and may also be exposed to electrical hazards. View Answer Answer: 600v 4 . A co-worker disconnected the power cord to the saw, too late to save the victim. 3 OSHA requires the testing of a volt meter after a voltage test on voltage above_____. To be safe, you must think about your job and plan for hazards. He plans to use it over a period of at least six months. It is important to note that NFPA 70E is a . 3.No, because he will not be touching any grounded material when using the tool. 0000015549 00000 n 0000007741 00000 n Is split Electricity must follow an uninterrupted loop from the power source to the equipment and back to the power source or ________. It's okay to use extension cords with worn insulation, as . b.Yes, because Bob was on . 2.Grease 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). 1.Clench 1.Damaged cover or insulation If a defective power tool gives you an electric shock, how might your muscles react? 4.Must be replaced, Always use a GFCI: Before using the equipment, be sure that the ground wire: 3.Maintaining a safe distance of at least 10 feet from all overhead power lines. The small electrical current enters his body through his left leg. Computers 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. Other protective measures include guarding or insulating the lines. Switch Question 3: A/an ____________ is a unit of measurement for electrical resistance. De-energize and ground lines when working near them. Which of the following can be caused by exposure to an arc flash? grand isle ferry schedule,