which of the following are electrical hazards osha quizlet

Use the terms (freezing, gas, liquid, physical changes, solubility, solution, temperature, volume) to complete the sentence. 1. gYpV:+ 0000001896 00000 n 0000004946 00000 n 4.On equipment that must run unattended for long periods of time, Manufacturing equipment may be grounded using a wire connected to a rod driven into the earth. OSHA 10 General Industry Test Answer Key WALKING. He plans to use it over a period of at least six months. b.Yes, as it would be too expensive to install more permanent wiring and receptacles. Supply power for tools or equipment on a long-term basis. Noise, : ________ or heavy perspiration can cause electricity to take an unintended path. Effective means of controlling power line hazards include: 2.Loose bolts Should Ajay use a GFCI? Test your knowledge with our electrical safety quiz below. On the day of the incident, the victim plugged in a damaged extension cord and laid it out towards the bulkhead. If a defective power tool gives you an electric shock, how might your muscles react? Which of the following can be caused by exposure to an arc flash? [, Use all equipment according to the manufacturer's instructions. lex has set up a mobile engine testing station in the maintenance area. Examples of Equipment That Can Contact Power Lines. Electric current cannot exist without an unbroken path to and from the conductor. 4.Organs, The presence of ________ can turn you, your equipment, or insulators like wood into conductors. 1.A source of electrical current to flow. When the energized conductor made contact with the ladder, the path to ground included the worker's body, resulting in death. The factors that determine the severity of an electrical injury include: Looking for NFPA 70E Certification? a) Door or window edges xb```VVF A10p,``Pp`hhdpn``r`L:[ I,aZ4Knj21 `ny; Ge7t@OrMx)"cx&e:[~J%aUJ\*t You need to evaluate the situation you are in and assess your . Explosion. 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. 4.Cardiac arrest The individual's perspiration-soaked clothing/body contacted bare exposed conductors on one of the cords, causing an electrocution. 0000005632 00000 n 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. b.Match the thickness of the extension cord to the thickness of the nail gun's power cord. 4 0 obj 1.Is firmly connected c.Wood a.Yes, as it is a mobile engine testing station. b.The tool's power cord. )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'. When an electric shock occurs, your muscles may: High humidity a.Electricity a) Ensure overhead power line safety Quiz Question 9: Conductor insulation must be approved for the ___________ of use? 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. 1452 25 d) All of the above. 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. 1.Fingernails Does the fall qualify as an electrical accident? The victim signaled the operator of the crane to extend the boom and lower the hoist cable. Reportedly, he was shocked throughout the morning, and he had replaced one of the extension cords in an effort to eliminate the shocks. 0000002876 00000 n Select the correct answer and then click DONE. a.Your thumb. 0000007464 00000 n -Falls. Which of the following are caused by contact with electricity? Draw a line from the item on the left that corresponds to the match on the right. c. No, because the electricity is needed on a long-term basis. D. Communicate the hazard to the crew and subs, use signs and bar E. Both C and D Q22. De-energizing Ajay needs to use a dewatering pump to drain standing water on a construction site. 3.The length of time the body is in contact with electricity Wearing a baseball cap 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 . 0000010155 00000 n d. Power outlets, ________ are anything that can transmit electrical current. Use only extension cords that are marked with a designation code for hard or extra-hard usage. xref 0000089142 00000 n 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. Quiz Question 4: Which is a preventive measure to prevent hazards while working with power lines? stream The normal wear and tear on extension and flexible cords at your site can loosen or expose wires, creating hazardous conditions. I;C`_;LV'd,|#H--e`( ')'RpAgA7O`?%68SB Quiz: Electrical Hazards. 0000004686 00000 n <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 792 612] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> Bob is asked to repair some overhead wiring, requiring the use a ladder. 0000022637 00000 n Ground metal parts of the following non-electrical equipment, as specified by the OSHA standard [, Frames and tracks of electrically operated. View Best Practices with Power Lines Quiz OSHA 30.docx from OSHA 30 at Columbia Southern University. Flexible Cord Not 3-Wire, Hard Service Variety: A worker received a fatal shock when he was cutting drywall with a metal casing router. Engineers, electricians, and other professionals work with electricity directly, including working on overhead lines, cable harnesses, and circuit assemblies. Be sure equipment that has been shop fabricated or altered is in compliance. 4.Circuit breakers, When inspecting power tools, look for: Electricity to the auger was supplied by a series of 50-foot extension cords running to an adjacent property. 4,600. Select the correct answer and then click DONE. 1.Using a fiberglass ladder when the possibility exists for contact with electricity. Is the west coast of Africa a plate boundary? 0000004793 00000 n When used on the moon? d.A power tool, A GFCI is designed to: In addition to contact with power lines, the top electrical hazards include: Which of the following are insulators of electricity? (a) Describe the reaction between the hydride ion and water in terms of a Bronsted acid-base reaction. hazard or that their employer is not following OSHA's rules. and more. -Rubber. Apparently, his hand contracted and he was "locked" to the saw. Potential hazards of electricity are preventable if you do which of the following listed below? 0000421920 00000 n 1476 0 obj <>stream a.20,000 volts d.The body of the power tool. <>>> 4.The amount of current, An electrical burn may affect: 30 days B. Co-workers provided CPR, but were unable to revive the victim. %PDF-1.4 % 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. -Severe skin burns. 1. Lx*jWP# /c2)|]NXqAx>=~'[ c.Absorb any water around the area Electricity becomes hazardous when it takes an unintended path to complete the ________. 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. Of the following choices, which are frequent electrical hazards 0000420277 00000 n The victim was totally deaf in one ear and suffered diminished hearing in the other. <> Question 1: Which of the following is a danger of electricity? 3.Vapor b+t6W' te+.W_{8u7Dt@1c. (b) The same reaction can also be classified as a redox reaction. The modification of the plug was not an intended use or prescribed by the manufacturer. 2. 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. 1.Flammable liquids You can classify scales for weighing objects as those that use springs and those that use standard masses to balance unknown masses. 182 0 obj <> endobj xref 182 41 0000000016 00000 n Quiz Question 10: Ground-fault circuit interrupters must be used for all of the following except? 0000001672 00000 n b.Metal 0000010603 00000 n [Power Tools]. Besides personal bodily injury, what other electrical hazards can be found in the workplace? When inspecting extension cords, look for: 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. b) By supplying GFCIs, or ground-fault circuit interrupters endobj C 277v. Use non-conductive wood or fiberglass ladders when working near power lines. -If current passes through the body near the heart or brain. endobj Select the choices that accurately define the common electrical term. 2. The most dangerous place to use electrical equipment is? Protection is lost because it will not trip when the system's load has been exceeded. 0000001646 00000 n OSHA will keep all identities confidential. d. 411, You are working with a 10-foot section of a conductive pipe near power lines. The NEC C. Suggestions <>>> endobj d.50,000 volts. If the insulation on the tool's power cord is damaged and you touch this area while grounded, the electricity will ________. Explain the purpose and use of the MyPlate symbol. 0000007116 00000 n A co-worker disconnected the power cord to the saw, too late to save the victim. Many workers are unaware of the potential electrical hazards present in their work environment, which makes them more vulnerable to the danger of electrocution. Select the correct answer and then click DONE. 4.No, because he does not need to use an extension cord. A. wrap tape around the damaged spot to prevent electrical shocks. Damaged Extension Cord Leaves Arc Welder Ungrounded: A 29-year-old welder attempted to connect a portable arc welder to an electrical outlet using an extension cord. % 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? BE SAFE! Follow manufacturers' recommended testing procedure to insure GFCI is working correctly. Select the correct answer and then click on DONE. endobj Electrical hazards expose workers to the following: Burns: Three types; electrical, arc flash, or thermal contact. 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. Question 1: Which of these is a type of Ground Fault Circuit Adapter? 0000005042 00000 n 15,000 milliamps (15 amps) Lowest overcurrent at which a typical fuse or circuit breaker opens a circuit! Power was supplied through two extension cords from a nearby residence. Other protective measures include guarding or insulating the lines. 4.Good condition of moveable parts, Items that could encourage overheating and cause tools to malfunction or start a fire include: 2.Yes, because he is using a portable power tool. Ground all power supply systems, electrical circuits, and electrical equipment. Know glove capability VS hazard anticipated (exposure to chemicals, heat, or flames). 0000021516 00000 n 1.Damaged cover or insulation Question 2: It's okay to use extension cords with worn insulation, as long as you are careful about it. A 20-year-old bricklayer standing on the work platform in contact with the main scaffold was electrocuted. These short objective type questions with answers are very important for competitive exams as well as Board exams. 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: 5.Twitch, Electrical shock may result in: Select the correct answer and then click DONE. Frames of non-electrically driven elevator cars to which electric conductors are attached. Two of the extension cords had no ground prongs, and some of them were repaired with electrical tape. Work performed on an electrical system within reaching distance of energized components is_____work. Which of the following part of you body can burn if you come in contact with electricity? a.Standing in water 3. Others, such as office workers and sales people, work with electricity indirectly and may also be exposed to electrical hazards. B. outdoors. Question 2: Which of the following is NOT a category of electrical burns? Electrical safety requirements necessary for the practical safeguarding of employees in the workplace. The workers administered CPR to the victim, but to no avail. How will she choose the correct cord? D. Have an ANSI sticker and an expiration date. OSHA: Air Monitoring & Medical Surveillance, WebQuest: Biomes, Ecosystems and Habitats. Select the correct answer and then click DONE. 4 0 obj Ground all exposed metal parts of equipment. a.Shut off power within a fraction of a second 0000002386 00000 n c.The outlet. 3. q>NmnLNmb$"Iyx1bD9.~Ll. Carly needs to use an extension cord with her corded nail gun. gYpV:+ 0000007427 00000 n The source of the electricity was apparently a short in a receptacle, but examination revealed that the electrical equipment used by the contractor was in such poor condition that it was impossible to make a certain determination of the source of the short. 0000018681 00000 n 0000002733 00000 n Burns. . 3.When you are using portable power tools 0000008392 00000 n A fault occurred, and with no grounding and no GFCI protection, the worker was electrocuted. Remove cords from receptacles by pulling on the plugs, not the cords. g]+fn_m{mja_0Y w endstream endobj 189 0 obj <> endobj 190 0 obj <>stream 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+ c.falls. Using cords or tools with worn insulation or exposed wires. <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> Question 3: Employers are not required to enforce lock out/tag out practices in the workplaces. Both could have prevented the accident from occuring. 0000024814 00000 n 2.Grease Which of these can be used as insulating live-line tools for electrical protection. 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. As he is working on the wiring, he receives an electrical shock that knocks him backward and causes him to fall off the ladder. endobj Electrical hazards are life threatening incidents that could happen due to electricity. 12 months C. 6 months D. Never Q23. 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. 0000017163 00000 n An employee was texturing a wall using an air compressor. OSHA Pros, LLC is an authorized provider of 360 Training, an OSHA-Accepted Provider, offering training and certification courses for NFPA 70E-Standard, and (C) Hot sticks. Then answer the questions below. The following references aid in recognizing hazards associated with electrical work. Use tools and equipment according to the instructions included in their listing, labeling or certification. Using a dry wood ladder when the possibility exists for contact with electricity. 3.Loss of eyesight Metal partitions, grill work, and similar metal enclosures around equipment of over 1kV between conductors. Electrical current travels through insulated ________. s\A0W+ Question 1: Each year, approximately __________ workers suffer from electricity related injuries. Computers 0000005520 00000 n Quiz Question 2: Which is acceptable when using powdered tools? The floor is covered in water and she is barefoot. d.Metal, Over half of all deaths caused by electricity result from contact with ________. D 600v. 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. 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

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