Determine duration, frequency, degree of exposure to hazards and physical stress. 0000005632 00000 n [. 3.Clear Select the choices that accurately define the common electrical term. Using equipment outdoors that is labeled for use only in dry, indoor locations. What was Latoya's first mistake? b.10 feet Use only equipment that is approved to meet OSHA standards. 2 0 obj a.Extension cords <> Fire (D) None of the above. The scaffold had been constructed only 21 horizontal inches across from a 7,620-volt power line. a.311 4.Organs, The presence of ________ can turn you, your equipment, or insulators like wood into conductors. As he removed the forms, he wrapped them with a length of cable called a choker, which was to be attached to a crane. 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. 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. 4. % Match the length from job to outlet. 0000004274 00000 n hazard or that their employer is not following OSHA's rules. [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. endobj 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 Quiz Question 7: Which is not an insulator? 10,000 milliamps (10 amps) Cardiac arrest and severe burns occur. The first worker knocked the auger off the victim, but saw that the electric cord was wrapped around the victim's thigh. 0000001672 00000 n 15,000 milliamps (15 amps) Lowest overcurrent at which a typical fuse or circuit breaker opens a circuit! Quiz Question 10: Ground-fault circuit interrupters must be used for all of the following except? 0000015549 00000 n [Power Tools]. d. 20 feet. Take any defective equipment out of service. b.burns. endobj Using circuit breakers or fuses with the wrong rating for over-current protection, e.g. Draw a line from the item on the left that corresponds to the match on the right. a.A small current BE SAFE! 0000013716 00000 n Stay at least 10 feet away from overhead power lines. High humidity 0000003603 00000 n OSHA 29 CFR 1910, Subpart P . 12 months C. 6 months D. Never Q23. 1. Looking for NFPA 70E Certification? 3.Needs to be reset trailer Dust 0000004946 00000 n Electrical safety quiz answers are given below. A co-worker disconnected the power cord to the saw, too late to save the victim. Working with electricity can be dangerous. 0000055319 00000 n 3. a.Conductive objects Do not remove ground prongs from cord- and plug-connected equipment or extension cords. 1. I;C`_;LV'd,|#H--e`( ')'RpAgA7O`?%68SB Metal partitions, grill work, and similar metal enclosures around equipment of over 1kV between conductors. One hand drill was not grounded, and the other had no safety plate. d.Constructive objects, Select all answers that apply to the following statement and then click DONE. _5JKy. 1.Is firmly connected BIOLOGICAL HAZARDS: term effects) and strain (longAssociated with working with animals, people, or infectious plant materials. 0000108653 00000 n 1.Using a fiberglass ladder when the possibility exists for contact with electricity. 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. 0000007741 00000 n a.Ground Fault Circuit Insulator 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: 4. (A) Shotgun sticks. 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. C 277v. 4.The amount of current, An electrical burn may affect: 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. Select the correct answer and then click DONE. Select the correct answer and then click DONE. b) By supplying GFCIs, or ground-fault circuit interrupters %PDF-1.5 Burns. d.50,000 volts. Should Ajay use a GFCI? Should he use an extension cord to power it? If the electrical conductors become exposed, there is a danger of shocks, burns, or fire. endobj 0000007116 00000 n The pole had not been inspected by the city and was not in compliance with code requirements (it was not grounded). Yes, because he will be using electricity near water. It's okay to use extension cords with worn insulation, as . hb``b``=p0X8n0lY0L#rK[V26h* @0H!XDl+!&FfUfo`h6l 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. 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. Latoya is using a mixing motor to mix pool chemicals in a plastic drum. 3. Intentionally creating a low-resistance path that connects to the earth. Suppose a volcano threw so much ash into the air that it blocked much of the sunlight. RZyd 1) The _____ created the Occupational Safety and Health Administration (OSHA) to set and enforce protective workplace safety and health standards. 2. Select the correct answer and then click DONE. Before using the equipment, be sure that the ground wire: Underground electrical hazards are: A. a) Door or window edges endobj (b) The same reaction can also be classified as a redox reaction. H. 4.Broken. Outlets -If current passes through the body near the heart or brain. 0000003715 00000 n 0000002150 00000 n 1 0 obj Question 4: When a worker receives an electric shock, first aid must start within ___________ minutes. Follow manufacturers' recommended testing procedure to insure GFCI is working correctly. 0000001861 00000 n Isolating, Power lines may be located underground. 0000007427 00000 n The individual's perspiration-soaked clothing/body contacted bare exposed conductors on one of the cords, causing an electrocution. What is the most common, non-fatal, electrical shock-related injury? 4.No, because he does not need to use an extension cord. 2.Using an aluminum ladder when the possibility exists for contact with electricity. Water Select the correct answer and then click DONE. Examples Of Electrical Hazards. Is the west coast of Africa a plate boundary? he most common shock-related injuries are: 2.Grease When it completes a circuit through the body. Regarding hand protection employers should: A. Seven employees of a masonry company were erecting a brick wall from a tubular, welded-frame scaffold approximately 24 feet high. The \rule{1cm}{1pt} artery carries deoxygenated blood from the heart to the lungs. View Best Practices with Power Lines Quiz OSHA 30.docx from OSHA 30 at Columbia Southern University. 0000000016 00000 n 3.Draped over equipment. Supply power for tools or equipment on a long-term basis. 1.Extension cords Quiz Question 2: Which is acceptable when using powdered tools? (See NFPA 70E-2021 Article 130 and OSHA subpart S part . c.Guaranteed Fault Circuit Interrupter Hazards are created when cords, cord connectors, receptacles, and cord- and plug connected equipment are improperly used and maintained. 4 0 obj xref -Damage to internal organs. As he is working on the wiring, he receives an electrical shock that knocks him backward and causes him to fall off the ladder. 0000010155 00000 n Explosion d.A power tool, A GFCI is designed to: True. c. No, because the electricity is needed on a long-term basis. Select the correct answer and then click DONE. 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). Other protective measures include guarding or insulating the lines. 3. b.A fast-acting switch monitoring current flow Short Confined spaces Machinery-related hazards (lockout/tagout, boiler safety, forklifts, etc.) Work performed on an electrical system within reaching distance of energized components is_____work. Of the following choices, which are frequent electrical hazards Use only extension cords that are 3-wire type. Dirk, a 28-year-old mechanic, is performing maintenance on a piece of equipment when he is shocked. 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.The humidity of the environment Question 3: Employers are not required to enforce lock out/tag out practices in the workplaces. 0000006893 00000 n 0000004884 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. x_HSqnwmky54YLzeStJi# TZObFT*.#BQF/Q What three things must be present for a current to flow through a conductor. When an electric shock occurs, your muscles may: 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. 0000005520 00000 n b.Yes, because Bob was on . q>NmnLNmb$"Iyx1bD9.~Ll. 4.Must be replaced, Always use a GFCI: Electricity must follow an uninterrupted loop from the power source to the equipment and back to the power source or ________. A 120v. Question 3: A/an ____________ is a unit of measurement for electrical resistance. 4.Flex In 2017, there were over ______________ electrical related violations cited by OSHA in the workplace. [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. Additionally, the ground prong was missing and there was no GFCI protection. 3.Body tissue Freeze Lockout/tagout procedures. h|UnH}+i-. He yelled for his co-workers to disconnect the power, which they did. Draw a line from the item on the left that corresponds to the match on the right. d.Adapter, What is a GFCI? When he grasped the handle of the bucket to pull it down, the crane cable came into contact with the overhead line. c. Match the color of the tool to the color of the extension cord. Electric current cannot exist without an unbroken path to and from the conductor. True. startxref Gloves used for electrical work must be inspected and tested prior to use, and be certified every: A. OSHA 10 General Industry Test Answer Key WALKING. Electrical hazards like frayed cords, missing ground pins, improper wiring or the harm that these hazards pose. 5.Twitch, Electrical shock may result in: D. Communicate the hazard to the crew and subs, use signs and bar E. Both C and D Q22. Electrical Safety Multiple Choice Questions and Answers for competitive exams. a. D. near other electrical equipment. The victim signaled the operator of the crane to extend the boom and lower the hoist cable. When inspecting extension cords, look for: (See NFPA 70E-2021 Article 130 and OSHA subpart S part 1910.333 (a) (1)- (2) and (c) for complete details.) 3 0 obj c.Three-prong plug . OSHA 29 CFR 1910, Subpart S . If the insulation on the tool's power cord is damaged and you touch this area while grounded, the electricity will ________. 2. Arc Flash. |tYny@YE>LkNj4-czZf"Usw>j\sv3fn},>},KeA s You can classify scales for weighing objects as those that use springs and those that use standard masses to balance unknown masses. Muscular contraction and nerve damage occur; death likely. Select the correct answer and then click DONE. 2.Something to transport the electrical current -- A conductor. OSHA: Air Monitoring & Medical Surveillance, 5 ANO - RETOMANDO ARTIGO, SUBSTANTIVO E ADJE. 0000017163 00000 n Computers Electrical current travels through insulated ________. stream De-energize and ground lines when working near them. 0000011060 00000 n She has an older drill with a steel housing and a 3-prong plug. B. 2.Complete 0000002385 00000 n 4.Running through doorways. What type of burns are the result of current flowing through and exiting the body? Electrical Contractors Industry. The following are electrical hazards: Shock. b.The tool's power cord. (C) Hot sticks. endobj Does the fall qualify as an electrical accident? 0000089142 00000 n a. Gaseous matter The router's 3-wire power cord was spliced to a 2-wire cord and plug set which was not rated for hard service. 1476 0 obj <>stream Carly needs to use an extension cord with her corded nail gun. (3,2,1), (5,4,3). A 29-year-old worker was electrocuted when he pushed a crane cable into a 7,200-volt power line. s\A0W+ Quiz Question 3: Power cords can be damaged by which of the following? Select the correct answer and then click DONE. 1.Pain -Rubber. 0000057373 00000 n Electricity will form a "path" or "loop". %PDF-1.4 % 0000004965 00000 n *Effects are for voltages less than about 600 volts. a.Yes, because the electrical shock caused the fall. Electrical Safety Quiz Electrical safety is an important topic that you and your workers need to know about. Best practices with power lines include: Which one of these methods MOST effectively protects machines, tools, and operators against damage from electrical current? Which of the following are insulators of electricity? Death. 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. Select the correct answer and then click DONE. 0000004921 00000 n 0000004686 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. Does the fall qualify as an electrical accident? The accident site was wet; also, humidity was high and the victim was sweating. a.20,000 volts Question 2: Which of the following are ways . How will she choose the correct cord? Remove cords from receptacles by pulling on the plugs, not the cords. 0000005716 00000 n 1.Damaged cover or insulation 3.ack of ground fault protection. d.Metal, Over half of all deaths caused by electricity result from contact with ________. De-energizing A. wrap tape around the damaged spot to prevent electrical shocks. 0000008392 00000 n =EAn`u!d, |\~Y>ZF( dnLN\2vP6 >sSjgh2:Lmqx#a[G2{h$zW]_:@Lvr)2T:R-/ `&~O4j)>1P*M 5>F:1B.g!AR <> a.Shut off power within a fraction of a second qnde>9!.,T2 :hw5 #OaPxkx=y7]J-yv*'H$jmVCq$ sx:R2$9SY+D!!LJ:n+.\#Hu~2VI O? Quiz Question 1: Which of the following is not a category of electrical burns? 1.When you are using electricity near water 0000002479 00000 n 0000421920 00000 n This may damage your equipment and cause employee injuries. (B) Switch sticks. [29 CFR 1926.416(a)(1)]. 0000005050 00000 n 1.Missing or broken path to ground. trailer <]/Prev 500768/XRefStm 1495>> startxref 0 %%EOF 222 0 obj <>stream 3. Ground metal parts of the following non-electrical equipment, as specified by the OSHA standard [, Frames and tracks of electrically operated. 2.Skin 0000017336 00000 n 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. 4. 0000420887 00000 n How might this event affect the ability of animals to obtain energy to live? Which of the following are insulators of electricity? 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. Switch Easy to identify The auger then fell across the other worker, the 24-year-old victim. 1.Is faulty xYmo -ER/&@[D,_! 1. Which of the following can be the result of electric shock? 4.Dirt build-up, Use only approved and authorized power tools in areas where the following hazards may be present: 0000012944 00000 n Question 1: Which of these is a type of Ground Fault Circuit Adapter? 0000012360 00000 n b. OSHA Pros, LLC is an authorized provider of 360 Training, an OSHA-Accepted Provider, offering training and certification courses for NFPA 70E-Standard, and 0000001495 00000 n Select the correct answer and then click on DONE. -Glass. 1,[-c|"&u[Fu>wjte8j:xRk )"m_!6awT J,byp?fRBf?p|b3/Um\7"|+@5vvWAa5J^y*q,l b)Ftt4 :4,-J`! c.The outlet. 0000009628 00000 n % Unless you know otherwise, assume that overhead lines are energized. 2. The small electrical current enters his body through his left leg. 128 0 obj <> endobj xref 128 26 0000000016 00000 n When the energized conductor made contact with the ladder, the path to ground included the worker's body, resulting in death. lex has set up a mobile engine testing station in the maintenance area. 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+ specifically addresses electrical protective devices. Which of the following part of you body can burn if you come in contact with electricity? d. Match the outlet prongs to the extension cord. a.Your thumb. <>>> Electrical hazards are life threatening incidents that could happen due to electricity. Provides information about the hazards that electrical workers may experience as a part of their jobs. 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. 4. 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. Question 2: Which of the following are ways employers must protect their employees on the workplace? 2.Placed along a wall. 2. The following references aid in recognizing hazards associated with electrical work. c.40,000 volts a.Supply power for tools or equipment on a temporary or short-term basis. The floor is covered in water and she is barefoot. d.Alert workers of any water in the area, GFCI is an acronym for: 3 0 obj 30 days B. Death is probable. Question 4: Which of the following is a type of burn caused by electrical hazards? B. outdoors. 0000013999 00000 n 3.Maintaining a safe distance of at least 10 feet from all overhead power lines. Ground all exposed metal parts of equipment. b.Rod 1.Cuts The victim was part of a crew that was constructing a concrete wall. Cardiac arrest or death - A result of electrical shock. 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. A 20-year-old bricklayer standing on the work platform in contact with the main scaffold was electrocuted. 0000007464 00000 n 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. 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 5. Post warning signs. 3.Cramp and more. 1452 25 He plans to use it over a period of at least six months. 3.Loose nuts Quiz Question 5: A/an ___________ is a unit of measurement for electrical resistance. c. Inductive objects Which of the following injuries can occur when muscles flex or twitch from an electrical shock? How fast would the ball be moving at the moment of release? a. Select the correct answer and then click DONE.