a.Shut off power within a fraction of a second 1. 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. -Grounding= a conductive connection to the earth which acts as a protective measure. a. Gaseous matter 0000002733 00000 n 3.Something that causes current to flow through the . <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 792 612] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> Question 1: Each year, approximately __________ workers suffer from electricity related injuries. c.Touching the motor As he is working on the wiring, he receives an electrical shock that knocks him backward and causes him to fall off the ladder. Select the correct answer and then click DONE. Examples of Equipment That Can Contact Power Lines. I;C`_;LV'd,|#H--e`( ')'RpAgA7O`?%68SB 2.Skin Contact utilities for buried power line locations. When an electric shock occurs, your muscles may: (See NFPA 70E-2021 Article 130 and OSHA subpart S part 1910.333 (a) (1)- (2) and (c) for complete details.) 0000001672 00000 n 0000010155 00000 n You discover the electrical cord on a drill has been damaged and some of the cord's insulation is missing. a.Ground Fault Circuit Insulator Yes, because he will be using electricity near water. Question 2: Which of the following are ways . Quiz: Electrical Hazards. The workers administered CPR to the victim, but to no avail. 3. Electrical hazards like frayed cords, missing ground pins, improper wiring or the harm that these hazards pose. When he grasped the handle of the bucket to pull it down, the crane cable came into contact with the overhead line. Electrical current travels through insulated ________. What is the output of the program in Exercise 17, if first = 26 and second = 8? 0000001646 00000 n Water Frequently inspect electrical systems to insure that the path to ground is continuous. 4,600. The victim used two extension cords to supply power: a home-made cord plugged into an ungrounded receptacle on the pole, and a UL-approved cord extending from the homemade cord to the saw. 0000004965 00000 n Co-workers provided CPR, but were unable to revive the victim. Ground all exposed metal parts of equipment. 4.Running through doorways. On the day of the incident, the victim plugged in a damaged extension cord and laid it out towards the bulkhead. qnde>9!.,T2 :hw5 #OaPxkx=y7]J-yv*'H$jmVCq$ sx:R2$9SY+D!!LJ:n+.\#Hu~2VI O? 1476 0 obj <>stream d. heart attacks. 0000001814 00000 n Electricity must follow an uninterrupted loop from the power source to the equipment and back to the power source or ________. Identify the oxidizing and reducing agents. 4.Damaged cover or insulation, When using electric-powered hand tools, do not overload: (C) Hot sticks. Electricity becomes hazardous when it takes an unintended path to complete the ________. c.Gasoline d.50,000 volts. The floor is covered in water and she is barefoot. A) 120v . a.Standing in water De-energizing d/E \VZvl$Y#nH,EIm /\"BQ>Rkl6xZWtAgfs 2 0 obj 1. 1.Clench Cardiac arrest or death - A result of electrical shock. %%EOF View Best Practices with Power Lines Quiz OSHA 30.docx from OSHA 30 at Columbia Southern University. [Flexible Cords and Power Tools]. a.Conductive objects 15,000 milliamps (15 amps) Lowest overcurrent at which a typical fuse or circuit breaker opens a circuit! 3. [. Looking for NFPA 70E Certification? Fatal electrocution is the main risk, but burns and falls from elevations are also hazards. endobj Use only extension cords that are marked with a designation code for hard or extra-hard usage. 0000024814 00000 n H. d.Adapter, What is a GFCI? One handle has a deadman's switch. 0000005632 00000 n b.Rod Gloves used for electrical work must be inspected and tested prior to use, and be certified every: A. B 208v. What is the primary purpose of properly grounding equipment? How fast would the ball be moving at the moment of release? 0000001861 00000 n 0000421627 00000 n Frames of non-electrically driven elevator cars to which electric conductors are attached. Improper Use of Extension and Flexible Cords. 30 days B. Draw a line from the item on the left that corresponds to the match on the right. Electrical Hazards Electrical hazards can be found in nearly every roofing work site. c.Guaranteed Fault Circuit Interrupter 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. Best practices with power lines include: Others, such as office workers and sales people, work with electricity indirectly and may also be exposed to electrical hazards. Noise, : ________ or heavy perspiration can cause electricity to take an unintended path. 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. hb``b``=p0X8n0lY0L#rK[V26h* @0H!XDl+!&FfUfo`h6l c. No, because the electricity is needed on a long-term basis. 4.Combustible dust, Fundamentals of Engineering Economic Analysis, David Besanko, Mark Shanley, Scott Schaefer. Overview. Attaching ungrounded, two-prong adapter plugs to three-prong cords and tools. 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. Overhead and buried power lines at your site are especially hazardous because they carry extremely high voltage. 5. d.Ground Fault Circuit Interrupter, : Another electrical hazard that can cause injury or death in the workplace is a ________ path to ground. The accident site was wet; also, humidity was high and the victim was sweating. a.Yes, because the electrical shock caused the fall. 3 OSHA requires the testing of a volt meter after a voltage test on voltage above_____. Question 3: Employers are not required to enforce lock out/tag out practices in the workplaces. 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? 4.Broken. It's okay to use extension cords with worn insulation, as . Select the correct answer and then click DONE. Additionally, the ground prong was missing and there was no GFCI protection. No GFCI's were used. 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: 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 . 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. 0000420277 00000 n The victim provided a path to ground and was electrocuted. Exercise their rights under the law without retaliation, including reporting an injury or raising health and safety concerns with their employer or OSHA. Which of the following part of you body can burn if you come in contact with electricity? stream 2.The person's physical condition View Answer Answer: 600v 4 . Using equipment outdoors that is labeled for use only in dry, indoor locations. d.The body of the power tool. Supply power for tools or equipment on a long-term basis. Use the terms (freezing, gas, liquid, physical changes, solubility, solution, temperature, volume) to complete the sentence. Question 3: If following lock out/tag out procedures, what step should be taken BEFORE you shut down the equipment? De-energize and ground lines when working near them. Question 1: Which of the following is a danger of electricity? OSHA 29 CFR 1910, Subpart S . _5JKy. and more. %PDF-1.4 % SCENARIO: You encounter a co-worker on a residential remodeling job. 3.Needs to be reset 0000004208 00000 n 0000004793 00000 n Using a dry wood ladder when the possibility exists for contact with electricity. 0000012360 00000 n 0000002876 00000 n The victim was totally deaf in one ear and suffered diminished hearing in the other. a.Electricity The following are electrical hazards: Shock. 0000005042 00000 n [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. trailer OSHA: Air Monitoring & Medical Surveillance, WebQuest: Biomes, Ecosystems and Habitats. (B) Switch sticks. Fire 1 0 obj Working with electricity can be dangerous. 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. 0 Which of the following can be the result of electric shock? Follow manufacturers' recommended testing procedure to insure GFCI is working correctly. The normal wear and tear on extension and flexible cords at your site can loosen or expose wires, creating hazardous conditions. 2.Grease 4. C 277v. A measure of the energy of motion of the particles in a substance is its _____. Select the correct answer and then click DONE. b.Electrical tools 0000003603 00000 n Use only cords, connection devices, and fittings that are equipped with strain relief. Unless you know otherwise, assume that overhead lines are energized. When selecting the right extension cord, a good rule of thumb is to match the thickness of the extension cord to the thickness of: b.A fast-acting switch monitoring current flow endobj A. wrap tape around the damaged spot to prevent electrical shocks. 2. Quiz Question 3: Power cords can be damaged by which of the following? Which one of these methods MOST effectively protects machines, tools, and operators against damage from electrical current? Select the correct answer and then click DONE. Select the correct answer and then click DONE. Match the length from job to outlet. 0000017336 00000 n OSHA 10 General Industry Test Answer Key WALKING. 0000007694 00000 n If you are touching any grounded material while using a power tool The small electrical current enters his body through his left leg. Arc Flash. Extension cords are used to: Reportedly, he was shocked throughout the morning, and he had replaced one of the extension cords in an effort to eliminate the shocks. Engineers, electricians, and other professionals work with electricity directly, including working on overhead lines, cable harnesses, and circuit assemblies. (3,2,1), (5,4,3). Quiz Question 10: Ground-fault circuit interrupters must be used for all of the following except? Isolating, Power lines may be located underground. B. outdoors. If a worker has been retaliated against for using their rights, they Remove from service any equipment with frayed cords, missing ground prongs, cracked tool casings, etc. xb```VVF A10p,``Pp`hhdpn``r`L:[ I,aZ4Knj21 `ny; Ge7t@OrMx)"cx&e:[~J%aUJ\*t Select the correct answer and then click DONE. 0000005716 00000 n Quiz Question 6: Which of these is not a type of Ground Fault Circuit Adapter? Additional minimum clearance distance is required for power lines carrying over ________. She finds several available in the shop. The factors that determine the severity of an electrical injury include: a.20,000 volts <>>> 2.Placed along a wall. 4. What is the minimum clearance distance you must maintain from the power lines? Electricity will form a "path" or "loop". High humidity 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. This caused him to fall from the ladder and land in a puddle of water, still holding the saw. Protection is lost because it will not trip when the system's load has been exceeded. -Wood. Potential hazards of electricity are preventable if you: Electricity must always travel in a(n) ________, ________ circuit. a.Two-prong plug Is not broken, Question Text: Electrical tools should be grounded with a(n)________. 3. d.Water, Other electrical hazards in the workplace include: Besides personal bodily injury, what other electrical hazards can be found in the workplace? Extension cords may become a trip hazard when: 0000002385 00000 n 0000014257 00000 n One worker, holding the deadman's switch, received a shock from a ground fault in the auger and was knocked back from the machine. Select the correct answer and then click DONE. Is the west coast of Africa a plate boundary? 0000414648 00000 n h|UnH}+i-. 3.Loose nuts Get resources on specific hazards and their control, including identification, risk assessment and inspections, to keep your workplace healthy and safe. When inspecting extension cords, look for: Before using the equipment, be sure that the ground wire: 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. Select the correct answer and then click DONE. 0000108653 00000 n 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 Hazards are created when cords, cord connectors, receptacles, and cord- and plug connected equipment are improperly used and maintained. 0000003715 00000 n 10,000 milliamps (10 amps) Cardiac arrest and severe burns occur. 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. s\A0W+ Suppose a volcano threw so much ash into the air that it blocked much of the sunlight. Electrical hazards are life threatening incidents that could happen due to electricity. c.falls. A 29-year-old worker was electrocuted when he pushed a crane cable into a 7,200-volt power line. 0000419562 00000 n 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. Get All Answers to OSHA 30 Construction Final Exam. 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. A worker was operating a " electric chisel when an electrical fault occurred in the casing of the tool, causing him to be fatally electrocuted. c.Three-prong plug Use non-conductive wood or fiberglass ladders when working near power lines. OSHA: Air Monitoring & Medical Surveillance, 5 ANO - RETOMANDO ARTIGO, SUBSTANTIVO E ADJE. As she is adding in the chemicals, her hand touches the motor and it becomes energized. 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). You can classify scales for weighing objects as those that use springs and those that use standard masses to balance unknown masses. a.Supply power for tools or equipment on a temporary or short-term basis. Then answer the questions below. 4. 1.Flammable liquids Post warning signs. BE SAFE! 4 0 obj Question 2: It's okay to use extension cords with worn insulation, as long as you are careful about it. 1) The _____ created the Occupational Safety and Health Administration (OSHA) to set and enforce protective workplace safety and health standards. 0000011060 00000 n 4 0 obj 3.Draped over equipment. In addition to contact with power lines, the top electrical hazards include: 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. 1.Fingernails . 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 Use tools and equipment according to the instructions included in their listing, labeling or certification. Using cords or tools with worn insulation or exposed wires. Power was supplied through two extension cords from a nearby residence. endobj -Damage to internal organs. 0000001908 00000 n 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. -Severe skin burns. 0000012944 00000 n Carly needs to use an extension cord with her corded nail gun. 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. 3.No, because he will not be touching any grounded material when using the tool. OSHA Safety and Health Topics Page. b.Yes, because Bob was on . Apparently, his hand contracted and he was "locked" to the saw. Latoya is using a mixing motor to mix pool chemicals in a plastic drum. After the wall was poured, one driver cleaned the loading chute of his cement truck with a water hose mounted on the truck. 0000006152 00000 n 1. 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 2.Complete 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. 4. 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. 0000007116 00000 n 3. c) Age Both could have prevented the accident from occuring. 0000018681 00000 n xYmo -ER/&@[D,_! 1.Is firmly connected Study with Quizlet and memorize flashcards containing terms like OSHA's electrical standards are based on: A. ANSI standards B. Equipment used in manner prescribed. The victim signaled the operator of the crane to extend the boom and lower the hoist cable. OSHA Pros, LLC is an authorized provider of 360 Training, an OSHA-Accepted Provider, offering training and certification courses for NFPA 70E-Standard, and -Rubber. c.Wood 4.Good condition of moveable parts, Items that could encourage overheating and cause tools to malfunction or start a fire include: 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. Electrical safety requirements necessary for the practical safeguarding of employees in the workplace. 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+ 0000004444 00000 n Other protective measures include guarding or insulating the lines. d. Power outlets, ________ are anything that can transmit electrical current. 2. Study with Quizlet and memorize flashcards containing terms like Bob is asked to repair some overhead wiring, requiring the use a ladder. Which of these can be used as insulating live-line tools for electrical protection. Extension cords had poor splices, no grounds, and reversed polarity. 0000017163 00000 n 0000004273 00000 n 4.Must be replaced, Always use a GFCI: Most of the hydrides of Group 1A and Group 2A metals are ionic. %PDF-1.4 % 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: 0000022637 00000 n Use only extension cords that are 3-wire type. endobj 2.Grounding Question 4: When a worker receives an electric shock, first aid must start within ___________ minutes. 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. -If current passes through the body near the heart or brain. 1. OSHA CONSTRUCTION FINAL EXAM Question and Answer Part 10. ly/homeo3b700 Which of the following is a resource within the. [Power Tools]. D. Communicate the hazard to the crew and subs, use signs and bar E. Both C and D Q22. Use only equipment that is approved to meet OSHA standards. Select the choices that accurately define the common electrical term. Quiz Question 1: Which of the following is not a category of electrical burns? What factors determine the severity of Dirk's injuries? 3.Cramp OSHA requires the testing of a volt meter after a voltage test on voltage above_____. 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. 3 0 obj 3. You should? 0000057373 00000 n D. near other electrical equipment. The pole had not been inspected by the city and was not in compliance with code requirements (it was not grounded). These short objective type questions with answers are very important for competitive exams as well as Board exams. a) Door or window edges b.Not wearing insulating shoes or boots when she was handling electrical equipment The workers had removed their shirts and were sweating. 3.Tears trailer <<11AC4BACEBCA4B32A885F1120BD3A307>]>> startxref 0 %%EOF 153 0 obj <>stream 0000006893 00000 n Which of the following factors determine how severe an electrical injury might be? 0000005050 00000 n stream Remove cords from receptacles by pulling on the plugs, not the cords. 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 3.Body tissue 3.The length of time the body is in contact with electricity RZyd Explosion. lb MKS Quiz Question 2: Which is acceptable when using powdered tools? The presence of ______ can turn you, your equipment, or insulators like wood, into conductors. 0000002557 00000 n b. When used on the moon? gYpV:+ 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. 0000068035 00000 n 1.Extension cords %PDF-1.4 % 1.Pain =EAn`u!d, |\~Y>ZF( dnLN\2vP6 >sSjgh2:Lmqx#a[G2{h$zW]_:@Lvr)2T:R-/ `&~O4j)>1P*M 5>F:1B.g!AR <> Switch Electricity to operate portable power tools was supplied by a temporary service pole 50 feet away. b+t6W' te+.W_{8u7Dt@1c. 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. 0000007464 00000 n 3.When you are using portable power tools d. No, because an extension cord would not provide enough power. Is not painted over 0000015549 00000 n 4.No, because he does not need to use an extension cord. 0000420887 00000 n 1. c.Absorb any water around the area Call ________ prior to digging to be connected with your local One Call Center to have all underground lines located by the utility company. a.Extension cords (D) None of the above. An 18-year-old worker at a construction site was electrocuted when he touched a light fixture while descending from a scaffold for his afternoon break. Regarding hand protection employers should: A. d.A power tool, A GFCI is designed to: Select the correct answer and then click DONE. b.The tool's power cord. He may have dropped the extension cord at the site and not heard the connector break. 2. B. When the victim reached down to connect the choker to the hoist cable, he suddenly collapsed. An employee was texturing a wall using an air compressor. Provide a safe path to earth ground for electricity. 0000028595 00000 n Burns. Quiz Question 7: Which is not an insulator? q>NmnLNmb$"Iyx1bD9.~Ll. Short In Power Saw/Ungrounded Temporary Power Supply: On July 10, 1986, a 22-year-old carpenter was working at the construction site of large apartment complex, using a portable electric saw to construct the wooden framework of a laundry building. <> HJ=S~68438IR/:VR C Y<7H*$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 5.Twitch, Electrical shock may result in: The insulation on the extension cord was cut through and exposed bare, energized conductors which made contact with the ladder. b.Metal )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'. Ground all power supply systems, electrical circuits, and electrical equipment. a. % 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. The auger then fell across the other worker, the 24-year-old victim. a.Your thumb. Two of the extension cords had no ground prongs, and some of them were repaired with electrical tape. 0000000016 00000 n Be sure equipment that has been shop fabricated or altered is in compliance. Electricity to the auger was supplied by a series of 50-foot extension cords running to an adjacent property. 128 0 obj <> endobj xref 128 26 0000000016 00000 n Using multi-receptacle boxes designed to be. The contact lasts for 5 seconds before someone is able to shut off the power. OSHA 10 General Industry Topic Exams Answer Key TOPIC EXAM 1: INTRO TO OSHA 1. b.Shut off power within five minutes of the imbalance The victim was part of a crew that was constructing a concrete wall. Question 4: Which of the following is a type of burn caused by electrical hazards? 0000001116 00000 n D 600v. Seven employees of a masonry company were erecting a brick wall from a tubular, welded-frame scaffold approximately 24 feet high. How might this event affect the ability of animals to obtain energy to live? 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. 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. x_HSqnwmky54YLzeStJi# TZObFT*.#BQF/Q using a 30-amp breaker in a system with 15- or 20-amp receptacles. d.Constructive objects, Select all answers that apply to the following statement and then click DONE. Death is probable. 0000008392 00000 n Question 2: Which of the following is NOT a category of electrical burns? Short Confined spaces Machinery-related hazards (lockout/tagout, boiler safety, forklifts, etc.) Apply a warning tag to any defective tool and do not use it until the problem has been corrected. One hand drill was not grounded, and the other had no safety plate. 3.Maintaining a safe distance of at least 10 feet from all overhead power lines. 0000002479 00000 n 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. 2.Something to transport the electrical current -- A conductor. Take any defective equipment out of service. Wearing a baseball cap <<7628BB2D46738F42B2FC6393656F4718>]>>
