Which of the following are electrical hazards? - Brainly.com If the electrical conductors become exposed, there is a danger of shocks, burns, or fire. 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. 128 0 obj <> endobj xref 128 26 0000000016 00000 n The following references aid in recognizing hazards associated with electrical work. [Power Tools]. When does electricity become hazardous to humans? c.Guaranteed Fault Circuit Interrupter Select the correct answer and then click DONE. 0000017163 00000 n The contact lasts for 5 seconds before someone is able to shut off the power. trailer <<11AC4BACEBCA4B32A885F1120BD3A307>]>> startxref 0 %%EOF 153 0 obj <>stream Select the correct answer and then click DONE. 3.Loose nuts What do tripped circuit breakers and blown fuses indicate? He may have dropped the extension cord at the site and not heard the connector break. 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). Using the wrong light bulb wattage; Overloading power strips and outlets; Unprotected electrical outlets; Poor wiring; Defective electrical wires NFPA 70E: Standard for Electrical Safety in the Workplace a.Yes, as it is a mobile engine testing station. 0000014257 00000 n The small electrical current enters his body through his left leg. OSHA: Electrical Hazards Flashcards | Quizlet Select the correct answer and then click on DONE. Look for overhead power lines and buried power line indicators. 0000000816 00000 n 3.Something that causes current to flow through the . Which of the following can be caused by exposure to an arc flash? 1. 0000001861 00000 n 1.Pain I;C`_;LV'd,|#H--e`( ')'RpAgA7O`?%68SB D. Communicate the hazard to the crew and subs, use signs and bar E. Both C and D Q22. OSHA: How Electricity Works Flashcards | Quizlet Quiz Question 5: A/an ___________ is a unit of measurement for electrical resistance. 1. A co-worker disconnected the power cord to the saw, too late to save the victim. b.Yes, because Bob was on . 0000010603 00000 n <> She finds several available in the shop. In addition to contact with power lines, the top electrical hazards include: Quiz Question 10: Ground-fault circuit interrupters must be used for all of the following except? 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 Do not remove ground prongs from cord- and plug-connected equipment or extension cords. 3.ack of ground fault protection. 0000015549 00000 n Take any defective equipment out of service. 0000005406 00000 n -Current= the movement of electrical charge. 4.Broken. %PDF-1.5 Draw a line from the item on the left that corresponds to the match on the right. 4 0 obj Find the volume of the parallelepiped determined by the vertices (1,1,1),(4,7,2) . 2.Loose bolts Use only extension cords that are 3-wire type. In 2017, there were over ______________ electrical related violations cited by OSHA in the workplace. What was Latoya's first mistake? 3.No, because he will not be touching any grounded material when using the tool. 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). 21 Examples Of Electrical Hazards - HSEWatch When selecting the right extension cord, a good rule of thumb is to match the thickness of the extension cord to the thickness of: The ________ keeps the electricity on its intended path through the conductor. When current travels through your body - Definition of electric shock. Power was supplied through two extension cords from a nearby residence. c.40,000 volts uVNSF!UTRQ91uR,6@hCH}]GAlaPh)NeT$iQ89S9|?4wahU ltz9 PH[$I&VX9WG%K~1{u8M:D"+HLEy 3@NR^z!rB^?RyOj;'Lof. The ground wire was not attached on the male end of the cord's plug. c. Match the color of the tool to the color of the extension cord. Death. 3. Contact utilities for buried power line locations. Bob is asked to repair some overhead wiring, requiring the use a ladder. . 0000018681 00000 n 3 OSHA requires the testing of a volt meter after a voltage test on voltage above_____. stream 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: 0000001116 00000 n 1,[-c|"&u[Fu>wjte8j:xRk )"m_!6awT J,byp?fRBf?p|b3/Um\7"|+@5vvWAa5J^y*q,l b)Ftt4 :4,-J`! 1 0 obj OSHA 10 - Exit Routes, Emergency Action Plans, The Analysis and Design of Linear Circuits, Albert J. Rosa, Gregory J. Toussaint, Roland E. Thomas. d. No, because an extension cord would not provide enough power. Examples Of Electrical Hazards. <> 4. Equipment used in manner prescribed. 1.Damaged cover or insulation Electrical Safety Multiple Choice Questions(MCQs) & Answers - gkseries 10,000 milliamps (10 amps) Cardiac arrest and severe burns occur. 0000421627 00000 n -Rubber. which of the following are electrical hazards osha quizlet c) Age a.Conductive objects Others, such as office workers and sales people, work with electricity indirectly and may also be exposed to electrical hazards. 3.Loss of eyesight c.Power lines 3.Cramp d.Adapter, What is a GFCI? Question 3: A/an ____________ is a unit of measurement for electrical resistance. 2. 4 0 obj s\A0W+GA?~G?nnnnnnnnnnnn>>{Wrbrbrbrb sbZef'N(:QvD":1vbo7o7o7W*_bTs6ivyU,;dFW` { endstream endobj 191 0 obj [/ICCBased 211 0 R] endobj 192 0 obj <> endobj 193 0 obj <> endobj 194 0 obj <> endobj 195 0 obj <> endobj 196 0 obj <>stream Question 1: Which of the following is a danger of electricity? 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. startxref OSHA 29 CFR 1910.147 . 2 0 obj 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 -If current passes through the body near the heart or brain. High humidity b.Metal d. 20 feet. De-energize and ground lines when working near them. 4,600. 0000004793 00000 n . No GFCI's were used. Fire C 277v. Is not broken, Question Text: Electrical tools should be grounded with a(n)________. Electrical hazards are life threatening incidents that could happen due to electricity. c. Extend the reach of the power tool. using a 30-amp breaker in a system with 15- or 20-amp receptacles. d. Power outlets, ________ are anything that can transmit electrical current. gYpV:+ OSHA: Common Electrical Hazards Flashcards | Quizlet 0000001814 00000 n It's okay to use extension cords with worn insulation, as . Both the operator and the victim failed to notice that the boom had contacted a 2,400-volt overhead power line. When the energized conductor made contact with the ladder, the path to ground included the worker's body, resulting in death. Then answer the questions below. 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 Electrical Safety Quiz - OSHA.net 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. ( Frequently inspect electrical systems to insure that the path to ground is continuous. specifically addresses electrical protective devices. 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. B 208v. Does the fall qualify as an electrical accident? True. a.Your thumb. 0000003900 00000 n endobj 0000001646 00000 n 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. 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. The \rule{1cm}{1pt} artery carries deoxygenated blood from the heart to the lungs. Safe operation of hand and portable powered tools and other hand-held equipment. 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. 2. What three things must be present for a current to flow through a conductor. Quiz Question 4: Which is a preventive measure to prevent hazards while working with power lines? [. Using multi-receptacle boxes designed to be. Exercise their rights under the law without retaliation, including reporting an injury or raising health and safety concerns with their employer or OSHA. c.15 feet 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. One hand drill was not grounded, and the other had no safety plate. Co-workers provided CPR, but were unable to revive the victim. (B) Switch sticks. %%EOF c.A measurement of electricity These short objective type questions with answers are very important for competitive exams as well as Board exams. c.Gasoline Electrical Safety Assessment Quiz Answers | ISHN _5JKy. Overhead and buried power lines at your site are especially hazardous because they carry extremely high voltage. Select the correct answer and then click DONE. c.Wood 2. 4.Circuit breakers, When inspecting power tools, look for: 4.Dirt build-up, Use only approved and authorized power tools in areas where the following hazards may be present: Protection is lost because it will not trip when the system's load has been exceeded. 0000002479 00000 n 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. (See NFPA 70E-2021 Article 130 and OSHA subpart S part . 3 0 obj The pole had not been inspected by the city and was not in compliance with code requirements (it was not grounded). -Voltage= a measure of electrical force. :$#k9BPnZ{Qqe/reKy,'ZlB# Match the length from job to outlet. Engineers, electricians, and other professionals work with electricity directly, including working on overhead lines, cable harnesses, and circuit assemblies. 0000004686 00000 n Select the correct answer and then click DONE. 0000011060 00000 n The victim provided a path to ground and was electrocuted. a.311 182 0 obj <> endobj xref 182 41 0000000016 00000 n Cardiac arrest or death - A result of electrical shock. endobj hb``b``=p0X8n0lY0L#rK[V26h* @0H!XDl+!&FfUfo`h6l As she is adding in the chemicals, her hand touches the motor and it becomes energized. 2.Yes, because he is using a portable power tool. Electrocution. Seven employees of a masonry company were erecting a brick wall from a tubular, welded-frame scaffold approximately 24 feet high. HWMo#7v#h>6,Z4- 1. No Ground-Fault Circuit Interrupters (GFCIs): A journeyman HVAC worker was installing metal duct work using a double-insulated drill connected to a drop light cord. b. Deductive objects As he is working on the wiring, he receives an electrical shock that knocks him backward and causes him to fall off the ladder. Among all of the safety measures that can and should be used to prevent electrical shock, which one is the most essential? 0000002733 00000 n a.Standing in water What is the primary purpose of properly grounding equipment? s\A0W+ Switch OSHA: Air Monitoring & Medical Surveillance, WebQuest: Biomes, Ecosystems and Habitats. 30 days B. 2.Grounding d/E \VZvl$Y#nH,EIm /\"BQ>Rkl6xZWtAgfs b) Staples You should? 0000427811 00000 n |tYny@YE>LkNj4-czZf"Usw>j\sv3fn},>},KeA s Use non-conductive wood or fiberglass ladders when working near power lines. 4. Death is probable. 0000024814 00000 n Working with electricity can be dangerous. a.Ground Fault Circuit Insulator 2.Grease Becoming part of the circuit exposes you to ________, the most dangerous electrical hazard. b.Match the thickness of the extension cord to the thickness of the nail gun's power cord. a. Gaseous matter PDF C. Both could have prevented the accident from occuring. Which of the following part of you body can burn if you come in contact with electricity? As he is working on the wiring, he receives an electrical shock that knocks him backward and causes him to fall off the ladder. 3.Tears Quiz Question 6: Which of these is not a type of Ground Fault Circuit Adapter? 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. 1.Is faulty Select the correct answer and then click DONE. c.Three-prong plug 0000420887 00000 n Used across walkways. A measure of the energy of motion of the particles in a substance is its _____. <> 0000005050 00000 n g]+fn_m{mja_0Y w endstream endobj 189 0 obj <> endobj 190 0 obj <>stream 0000007694 00000 n 0000422244 00000 n To avoid injury or death, you must understand and recognize hazards. % View Answer Answer: 600v 4 . One handle has a deadman's switch. PDF SAFETY HAZARDS: These are the most PHYSICAL HAZARDS: CHEMICAL HAZARDS a) Door or window edges Using circuit breakers or fuses with the wrong rating for over-current protection, e.g. c. Inductive objects trailer One worker, holding the deadman's switch, received a shock from a ground fault in the auger and was knocked back from the machine. As the victim climbed down a makeshift ladder, he shifted the saw from his right hand to his left, and was shocked. Question 2: Which of the following is NOT a category of electrical burns? Check your employee's electrical safety knowledge through an electrical safety quiz. 3. 0000006866 00000 n 2.Loss of muscle control The accident site was wet; also, humidity was high and the victim was sweating. Quiz: Electrical Hazards. Noise, : ________ or heavy perspiration can cause electricity to take an unintended path. The normal wear and tear on extension and flexible cords at your site can loosen or expose wires, creating hazardous conditions. Which of the following are insulators of electricity? A 120v. B. outdoors. 0000000016 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. 1.Using a fiberglass ladder when the possibility exists for contact with electricity. The first worker knocked the auger off the victim, but saw that the electric cord was wrapped around the victim's thigh. <>>> If you are touching any grounded material while using a power tool Quiz Question 9: Conductor insulation must be approved for the ___________ of use? 0000007427 00000 n OSHA 30 - Module 12: Electrical Safety Flashcards | Quizlet b) By supplying GFCIs, or ground-fault circuit interrupters Electricity will form a "path" or "loop". How will she choose the correct cord? OSHA Safety and Health Topics Page. After the wall was poured, one driver cleaned the loading chute of his cement truck with a water hose mounted on the truck. Question 2: Which of the following are ways . 4.Must be replaced, Always use a GFCI: Electrical Safety Quiz-Test Your Electrical Safety Knowledge Work performed on an electrical system within reaching distance of energized components is_____work. Electrical Contractors Industry. Regarding hand protection employers should: A. a.Shut off power within a fraction of a second 0000005520 00000 n b+t6W' te+.W_{8u7Dt@1c. A fan connected to a 120-volt electrical system via an extension cord provided ventilation for a worker performing a chipping operation from an aluminum stepladder. The auger then fell across the other worker, the 24-year-old victim. c.Absorb any water around the area Apparently, his hand contracted and he was "locked" to the saw. Quiz Question 7: Which is not an insulator? d.Ground Fault Circuit Interrupter, : Another electrical hazard that can cause injury or death in the workplace is a ________ path to ground. Best practices with power lines include: 0000004884 00000 n Hazards are created when cords, cord connectors, receptacles, and cord- and plug connected equipment are improperly used and maintained. trailer <]/Prev 500768/XRefStm 1495>> startxref 0 %%EOF 222 0 obj <>stream OSHA 10 - Electrical Flashcards | Quizlet OSHA 29 CFR 1910, Subpart S . Is not painted over Flexible Cord Not 3-Wire, Hard Service Variety: A worker received a fatal shock when he was cutting drywall with a metal casing router. Frames of non-electrically driven elevator cars to which electric conductors are attached. 0000010155 00000 n d.Constructive objects, Select all answers that apply to the following statement and then click DONE. %PDF-1.4 % 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. Select the choices that accurately define the common electrical term. BIOLOGICAL HAZARDS: term effects) and strain (longAssociated with working with animals, people, or infectious plant materials. OSHA 29 CFR 1910, Subpart P . 0000108653 00000 n Is the west coast of Africa a plate boundary? Electricity must follow an uninterrupted loop from the power source to the equipment and back to the power source or ________. endobj Which of these can be used as insulating live-line tools for electrical protection. 0000108920 00000 n You need to evaluate the situation you are in and assess your . Easy to identify Use only extension cords that are marked with a designation code for hard or extra-hard usage. 0000089142 00000 n d.A power tool, A GFCI is designed to: electrical safety part 1 Flashcards | Quizlet 0000068035 00000 n b. Before using the equipment, be sure that the ground wire: <<7628BB2D46738F42B2FC6393656F4718>]>> Gloves used for electrical work must be inspected and tested prior to use, and be certified every: A. Arc Flash. PDF OSHA Safety - Electrical Safety - Red Vector OSHA Pros, LLC is an authorized provider of 360 Training, an OSHA-Accepted Provider, offering training and certification courses for NFPA 70E-Standard, and Electrical - Overview | Occupational Safety and Health Administration True. 0000001604 00000 n Select the correct answer and then click DONE. 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. 0000420277 00000 n 0000013716 00000 n Attaching ungrounded, two-prong adapter plugs to three-prong cords and tools. b.Ground Fault Critical Interrupter 3. a.Extension cords Which group would be more accurate when used in an accelerating spaceship? If a worker has been retaliated against for using their rights, they Which one of these methods MOST effectively protects machines, tools, and operators against damage from electrical current?