Quiz Question 5: A/an ___________ is a unit of measurement for electrical resistance. Follow manufacturers' recommended testing procedure to insure GFCI is working correctly. 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. c. Extend the reach of the power tool. Question 2: Which of the following is NOT a category of electrical burns? % D. Have an ANSI sticker and an expiration date. 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 -Grounding= a conductive connection to the earth which acts as a protective measure. 182 0 obj <> endobj xref 182 41 0000000016 00000 n 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. he most common shock-related injuries are: -Conductor= permits the free flow of electricity. Select the correct answer and then click DONE. Select the correct answer and then click DONE. Ground metal parts of the following non-electrical equipment, as specified by the OSHA standard [29 CFR 1926.404(f)(7)(v)]: Frames and tracks of electrically operated cranes. Is the west coast of Africa a plate boundary? Most of the hydrides of Group 1A and Group 2A metals are ionic. Additionally, the ground prong was missing and there was no GFCI protection. Use only extension cords that are 3-wire type. 2.Skin OSHA 29 CFR 1910, Subpart P . 0000004921 00000 n Select the choices that accurately define the common electrical term. 1.Missing or broken path to ground. Remove cords from receptacles by pulling on the plugs, not the cords. Becoming part of the circuit exposes you to ________, the most dangerous electrical hazard. Select the correct answer and then click DONE. 0000012944 00000 n d.Ground Fault Circuit Interrupter, : Another electrical hazard that can cause injury or death in the workplace is a ________ path to ground. stream It is important to note that NFPA 70E is a . Outlets c. Inductive objects 2.Using extension cords or electrical tools properly. Protection is lost because it will not trip when the system's load has been exceeded. 0000000816 00000 n Electrical safety quiz answers are given below. Provide a safe path to earth ground for electricity. xYmo -ER/&@[D,_! 4. Overhead and buried power lines at your site are especially hazardous because they carry extremely high voltage. ZR)!=w|; @uT C0? c. No, because the electricity is needed on a long-term basis. You discover the electrical cord on a drill has been damaged and some of the cord's insulation is missing. OSHA requires the testing of a volt meter after a voltage test on voltage above_____. endobj d.Alert workers of any water in the area, GFCI is an acronym for: 2.Something to transport the electrical current -- A conductor. Test your knowledge with our electrical safety quiz below. *Effects are for voltages less than about 600 volts. a.Your thumb. d/E \VZvl$Y#nH,EIm /\"BQ>Rkl6xZWtAgfs Use only extension cords that are marked with a designation code for hard or extra-hard usage. Which of these can be used as insulating live-line tools for electrical protection. 1.Clench hazard or that their employer is not following OSHA's rules. c.Power lines Know glove capability VS hazard anticipated (exposure to chemicals, heat, or flames). 0000420887 00000 n Question 1: Employers must ensure that every electric utilization system and all utilization equipment installed, majorly modified, or replaced after March 15, 1972, complies with the standards for electricity set by the National Fire Protection Association, which have been adopted by OSHA. 0000005632 00000 n Find the volume of the parallelepiped determined by the vertices (1,1,1),(4,7,2) . As he began to pull away, the crew supervisor yelled to him, asking if the crew could use his water hose to wash out their cement bucket suspended from the crane. OSHA 10 - Exit Routes, Emergency Action Plans, The Analysis and Design of Linear Circuits, Albert J. Rosa, Gregory J. Toussaint, Roland E. Thomas. a.20,000 volts Continually audit cords on-site. 1. hb``b``=p0X8n0lY0L#rK[V26h* @0H!XDl+!&FfUfo`h6l b+t6W' te+.W_{8u7Dt@1c. Computers 2.Grease (a) Describe the reaction between the hydride ion and water in terms of a Bronsted acid-base reaction. <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> 0000015549 00000 n The victim was totally deaf in one ear and suffered diminished hearing in the other. 0000002122 00000 n Visually inspect all electrical equipment before use. Question 2: Which of the following are ways . Explosion 3.No, because he will not be touching any grounded material when using the tool. 3. B. 0000001604 00000 n 1.When you are using electricity near water To be safe, you must think about your job and plan for hazards. H\n@0vj@/R#tnvihavopnS1>v8Z6zLpOCRU.O^6pImjgk{xv6%zp\,{|7_WqNfhu09$U?kW}: }y}]OIL5~W*8D~%W-yww;sORYbfspA.%YJV L%=Kx&0W+ How might this event affect the ability of animals to obtain energy to live? Study with Quizlet and memorize flashcards containing terms like Among all of the safety measures that can and should be used to prevent electrical shock, which one is the most essential?, 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., When does electricity become hazardous to humans? 1. SCENARIO: You encounter a co-worker on a residential remodeling job. 1.Missing b.A fast-acting switch monitoring current flow Death is probable. 2 0 obj 0000056642 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. 0000001116 00000 n endobj Bob is asked to repair some overhead wiring, requiring the use a ladder. 0000420564 00000 n When inspecting extension cords, look for: <>>> b.Shut off power within five minutes of the imbalance Using equipment outdoors that is labeled for use only in dry, indoor locations. 15,000 milliamps (15 amps) Lowest overcurrent at which a typical fuse or circuit breaker opens a circuit! 3.Body tissue Others, such as office workers and sales people, work with electricity indirectly and may also be exposed to electrical hazards. A 20-year-old bricklayer standing on the work platform in contact with the main scaffold was electrocuted. 0000422244 00000 n Latoya is using a mixing motor to mix pool chemicals in a plastic drum. b.Electrical tools Fire Get All Answers to OSHA 30 Construction Final Exam. You need to evaluate the situation you are in and assess your . What do tripped circuit breakers and blown fuses indicate? 0000001814 00000 n 0000001896 00000 n _5JKy. 0000004208 00000 n The source of the shocks -- the saw -- was not replaced. Co-workers provided CPR, but were unable to revive the victim. 12 months C. 6 months D. Never Q23. Electrical hazards are life threatening incidents that could happen due to electricity. How fast would the ball be moving at the moment of release? 2 0 obj d. Power outlets, ________ are anything that can transmit electrical current. Select the correct answer and then click DONE. 0000024814 00000 n Examples of Equipment That Can Contact Power Lines. 0000002195 00000 n specifically addresses electrical protective devices. The router's 3-wire power cord was spliced to a 2-wire cord and plug set which was not rated for hard service. 0000419562 00000 n 1452 25 In 2017, there were over ______________ electrical related violations cited by OSHA in the workplace. stream qnde>9!.,T2 :hw5 #OaPxkx=y7]J-yv*'H$jmVCq$ sx:R2$9SY+D!!LJ:n+.\#Hu~2VI O? Ground all exposed metal parts of equipment. OSHA Pros, LLC is an authorized provider of 360 Training, an OSHA-Accepted Provider, offering training and certification courses for NFPA 70E-Standard, and 0000014257 00000 n 0000001672 00000 n As he removed the forms, he wrapped them with a length of cable called a choker, which was to be attached to a crane. Which of the following are conductor of electricity? Electricity must follow an uninterrupted loop from the power source to the equipment and back to the power source or ________. The victim signaled the operator of the crane to extend the boom and lower the hoist cable. Gloves used for electrical work must be inspected and tested prior to use, and be certified every: A. Does the fall qualify as an electrical accident? Use tools and equipment according to the instructions included in their listing, labeling or certification. Use only equipment that is approved to meet OSHA standards. -Current= the movement of electrical charge. 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. 3.Tears Quiz Question 4: Which is a preventive measure to prevent hazards while working with power lines? a. 0000108920 00000 n %PDF-1.5 2.Loss of muscle control 0000018681 00000 n Before using the equipment, be sure that the ground wire: 1. 4. Does the fall qualify as an electrical accident? 0000414648 00000 n As he is working on the wiring, he receives an electrical shock that knocks him backward and causes him to fall off the ladder. 0000028595 00000 n The individual's perspiration-soaked clothing/body contacted bare exposed conductors on one of the cords, causing an electrocution. 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. What was Latoya's first mistake? 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. True. Contact utilities for buried power line locations. 0000006893 00000 n 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). 0000017163 00000 n One handle has a deadman's switch. ( d. No, because an extension cord would not provide enough power. (C) Hot sticks. 0000007694 00000 n a. Gaseous matter 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: Metal partitions, grill work, and similar metal enclosures around equipment of over 1kV between conductors. Equipment used in manner prescribed. <> Draw a line from the item on the left that corresponds to the match on the right. % Lx*jWP# /c2)|]NXqAx>=~'[ 3. Burns. 3.Vapor 1.Is firmly connected OSHA Safety and Health Topics Page. 5. lb MKS 1452 0 obj <> endobj Switch a.Extension cords 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 When he grasped the handle of the bucket to pull it down, the crane cable came into contact with the overhead line. When it completes a circuit through the body. 1.Using a fiberglass ladder when the possibility exists for contact with electricity. 0000007427 00000 n 1.Pain d. heart attacks. . The presence of ______ can turn you, your equipment, or insulators like wood, into conductors. This is action is also known as creating or completing an electrical circuit. Using cords or tools with worn insulation or exposed wires. %PDF-1.4 % 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.Extension cords 0000008392 00000 n Using the wrong light bulb wattage; Overloading power strips and outlets; Unprotected electrical outlets; Poor wiring; Defective electrical wires Visually inspect all electrical equipment before use. Frames of non-electrically driven elevator cars to which electric conductors are attached. Electrocution was the second leading cause of worker deaths on construction sites in the United States in 2011. [29 CFR 1926.416(a)(1)]. endobj As she is adding in the chemicals, her hand touches the motor and it becomes energized. 5>vB35Plm$\4{U[lU`t~.vJGmFO^@+ cGPzNY*oS(m%q{Agp c. Match the color of the tool to the color of the extension cord. 0000005042 00000 n After the wall was poured, one driver cleaned the loading chute of his cement truck with a water hose mounted on the truck. If you are touching any grounded material while using a power tool Additionally, the ground prongs were missing from the two cords. 1. 0000089142 00000 n Explosion. d. Match the outlet prongs to the extension cord. a.related to muscle damage. On the day of the incident, the victim plugged in a damaged extension cord and laid it out towards the bulkhead. 0000057373 00000 n %%EOF H. 0000000816 00000 n d.Metal, Over half of all deaths caused by electricity result from contact with ________. b.Ground Fault Critical Interrupter C 277v. 0000108653 00000 n 4.Broken. Other protective measures include guarding or insulating the lines. 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 c.40,000 volts The normal wear and tear on extension and flexible cords at your site can loosen or expose wires, creating hazardous conditions. using a 30-amp breaker in a system with 15- or 20-amp receptacles. Electrical hazards expose workers to the following: Burns: Three types; electrical, arc flash, or thermal contact. Then answer the questions below. 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. Select the correct answer and then click DONE. 0000010155 00000 n 10,000 milliamps (10 amps) Cardiac arrest and severe burns occur. In addition to contact with power lines, the top electrical hazards include: The small electrical current enters his body through his left leg. The workers administered CPR to the victim, but to no avail. 2. 2.Grounding BE SAFE! a.Yes, because the electrical shock caused the fall. A) 120v . When does electricity become hazardous to humans? Looking for NFPA 70E Certification? Frequently inspect electrical systems to insure that the path to ground is continuous. Seven employees of a masonry company were erecting a brick wall from a tubular, welded-frame scaffold approximately 24 feet high. . 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. Question 4: Which of the following is a type of burn caused by electrical hazards? 0000005520 00000 n c.A measurement of electricity -If current passes through the body near the heart or brain. As the victim climbed down a makeshift ladder, he shifted the saw from his right hand to his left, and was shocked. 4 0 obj . C. near water. 0000421920 00000 n When an electric shock occurs, your muscles may:
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