which of the following are electrical hazards osha quizlet

This is action is also known as creating or completing an electrical circuit. 3. Hazards are created when cords, cord connectors, receptacles, and cord- and plug connected equipment are improperly used and maintained. 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 0000013999 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. B 208v. 0000002386 00000 n Should Ajay use a GFCI? % 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: 2.Grease Quiz Question 1: Which of the following is not a category of electrical burns? 0000002403 00000 n If a defective power tool gives you an electric shock, how might your muscles react? Which of the following are conductor of electricity? The following references aid in recognizing hazards associated with electrical work. Yes, because he will be using electricity near water. Potential hazards of electricity are preventable if you: Electricity must always travel in a(n) ________, ________ circuit. Work performed on an electrical system within reaching distance of energized components is_____work. d. Match the outlet prongs to the extension cord. -Current= the movement of electrical charge. b) Staples I;C`_;LV'd,|#H--e`( ')'RpAgA7O`?%68SB c) Establish and enact an assured equipment grounding conductor program (AEGCP) 5.Twitch, Electrical shock may result in: Draw a line from the item on the left that corresponds to the match on the right. (b) The same reaction can also be classified as a redox reaction. 0000003900 00000 n Switch 1.Missing or broken path to ground. <> 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. 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. 0000024814 00000 n <> Follow manufacturers' recommended testing procedure to insure GFCI is working correctly. 0000003254 00000 n Other protective measures include guarding or insulating the lines. Then answer the questions below. The victim was totally deaf in one ear and suffered diminished hearing in the other. After the wall was poured, one driver cleaned the loading chute of his cement truck with a water hose mounted on the truck. 2. 2. %PDF-1.5 [29 CFR 1926.416(a)(1)]. 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). 3.Something that causes current to flow through the . Electrical Safety Multiple Choice Questions and Answers for competitive exams. The floor is covered in water and she is barefoot. Select the correct answer and then click DONE. Remove cords from receptacles by pulling on the plugs, not the cords. 3.Loose nuts 0000005406 00000 n 2. 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. Regarding hand protection employers should: A. What is the minimum clearance distance you must maintain from the power lines? Death. Be sure equipment that has been shop fabricated or altered is in compliance. 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. 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.Cardiac arrest Dust OSHA Safety and Health Topics Page. a.Ground Fault Circuit Insulator Get resources on specific hazards and their control, including identification, risk assessment and inspections, to keep your workplace healthy and safe. Using cords or tools with worn insulation or exposed wires. The individual's perspiration-soaked clothing/body contacted bare exposed conductors on one of the cords, causing an electrocution. b.Shut off power within five minutes of the imbalance 0000056642 00000 n Question 2: Which of the following are ways employers must protect their employees on the workplace? 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). 2.Something to transport the electrical current -- A conductor. Quiz: Electrical Hazards. Select the correct answer and then click DONE. The presence of ______ can turn you, your equipment, or insulators like wood, into conductors. 0000421627 00000 n 10,000 milliamps (10 amps) Cardiac arrest and severe burns occur. Select the choices that accurately define the common electrical term. endobj 0000004273 00000 n Computers OSHA 10 - Exit Routes, Emergency Action Plans, The Analysis and Design of Linear Circuits, Albert J. Rosa, Gregory J. Toussaint, Roland E. Thomas. _5JKy. Question 1: Which of the following is a danger of electricity? 15,000 milliamps (15 amps) Lowest overcurrent at which a typical fuse or circuit breaker opens a circuit! 0000017336 00000 n Isolating, Power lines may be located underground. Examples Of Electrical Hazards. b.Not wearing insulating shoes or boots when she was handling electrical equipment How fast would the ball be moving at the moment of release? 0000004884 00000 n Select the correct answer and then click DONE. 3.Clear The most dangerous place to use electrical equipment is? Select the correct answer and then click DONE. Out of several possible scenarios, the most likely was contact between the exposed wires of an extension cord and a screw that protruded from the receptacle, which had its face plate removed. Apply a warning tag to any defective tool and do not use it until the problem has been corrected. 0000009628 00000 n 4.No, because he does not need to use an extension cord. Electrical hazards are life threatening incidents that could happen due to electricity. Which of the following injuries can occur when muscles flex or twitch from an electrical shock? Question 3: Employers are not required to enforce lock out/tag out practices in the workplaces. 2.Flooding d.Water, Other electrical hazards in the workplace include: 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 . Which one of these methods MOST effectively protects machines, tools, and operators against damage from electrical current? It's okay to use extension cords with worn insulation, as . % A) 120v . trailer <<11AC4BACEBCA4B32A885F1120BD3A307>]>> startxref 0 %%EOF 153 0 obj <>stream c. Extend the reach of the power tool. 2.Using extension cords or electrical tools properly. Electricity must follow an uninterrupted loop from the power source to the equipment and back to the power source or ________. BE SAFE! Noise, : ________ or heavy perspiration can cause electricity to take an unintended path. Since the outlet at the adjacent property had no socket for a ground prong, the extension cords were plugged into the outlet using an adapter, but the ground wire of the adapter was not grounded. Explosion. Question 2: Which of the following are ways . 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 victim signaled the operator of the crane to extend the boom and lower the hoist cable. 2.Placed along a wall. c.The outlet. Which group would be more accurate when used in an accelerating spaceship? 1.Extension cords Is the west coast of Africa a plate boundary? Look for overhead power lines and buried power line indicators. Select the correct answer and then click DONE. a. :$#k9BPnZ{Qqe/reKy,'ZlB# The \rule{1cm}{1pt} artery carries deoxygenated blood from the heart to the lungs. 4.Damaged cover or insulation, When using electric-powered hand tools, do not overload: Supply power for tools or equipment on a long-term basis. What factors determine the severity of Dirk's injuries? 3.Maintaining a safe distance of at least 10 feet from all overhead power lines. s\A0W+ Use tools and equipment according to the instructions included in their listing, labeling or certification. [, Do not modify cords or use them incorrectly. Use the terms (freezing, gas, liquid, physical changes, solubility, solution, temperature, volume) to complete the sentence. 4 0 obj Engineers, electricians, and other professionals work with electricity directly, including working on overhead lines, cable harnesses, and circuit assemblies. Select the choices that accurately define the common electrical term. (C) Hot sticks. 0000003771 00000 n The first worker knocked the auger off the victim, but saw that the electric cord was wrapped around the victim's thigh. A) Identify; Castigate; C) Evaluate; D) Modify; 3. Reportedly, he was shocked throughout the morning, and he had replaced one of the extension cords in an effort to eliminate the shocks. d. 411, You are working with a 10-foot section of a conductive pipe near power lines. vpfuI)],s 0000000016 00000 n a. Gaseous matter Provide a safe path to earth ground for electricity. a.Supply power for tools or equipment on a temporary or short-term basis. Electrical safety quiz answers are given below. D. Communicate the hazard to the crew and subs, use signs and bar E. Both C and D Q22. 4.On equipment that must run unattended for long periods of time, Manufacturing equipment may be grounded using a wire connected to a rod driven into the earth. -Severe skin burns. The workers had removed their shirts and were sweating. 5>vB35Plm$\4{U[lU`t~.vJGmFO^@+ cGPzNY*oS(m%q{Agp 4.Dirt build-up, Use only approved and authorized power tools in areas where the following hazards may be present: 4. a.Shut off power within a fraction of a second Even when the power system is properly grounded, electrical equipment can instantly change from safe to hazardous because of extreme conditions and rough treatment. Using tools and equipment that can contact power lines increases the risk. Electricity for power tools was supplied from an exterior 120-volt, grounded AC receptacle located at the back of the residence. <>>> a.311 4.Good condition of moveable parts, Items that could encourage overheating and cause tools to malfunction or start a fire include: 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. Both could have prevented the accident from occuring. 1.Is firmly connected Select the correct answer and then click DONE. Does the fall qualify as an electrical accident? a.Your thumb. OSHA: Air Monitoring & Medical Surveillance, WebQuest: Biomes, Ecosystems and Habitats. Which of the following can be the result of electric shock? What is the most common, non-fatal, electrical shock-related injury? Explosion 0000005734 00000 n 2.Grounding No GFCI's were used. 2. Visually inspect all electrical equipment before use. 128 0 obj <> endobj xref 128 26 0000000016 00000 n These short objective type questions with answers are very important for competitive exams as well as Board exams. 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. xref 4.Combustible dust, Fundamentals of Engineering Economic Analysis, David Besanko, Mark Shanley, Scott Schaefer. Quiz Question 2: Which is acceptable when using powdered tools? -If current passes through the body near the heart or brain. 1) The _____ created the Occupational Safety and Health Administration (OSHA) to set and enforce protective workplace safety and health standards. 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. *Effects are for voltages less than about 600 volts. a.Electricity |tYny@YE>LkNj4-czZf"Usw>j\sv3fn},>},KeA s a.20,000 volts The length of time the body is in the circuit, in contact with electricity - Factor determining the severity of an electrical . d/E \VZvl$Y#nH,EIm /\"BQ>Rkl6xZWtAgfs Short Confined spaces Machinery-related hazards (lockout/tagout, boiler safety, forklifts, etc.) 0000002557 00000 n Before using the equipment, be sure that the ground wire: 1. endobj a) Door or window edges a. Outlets This caused him to fall from the ladder and land in a puddle of water, still holding the saw. Select the correct answer and then click DONE. Electrical current travels through insulated ________. 1. 0000001814 00000 n . %%EOF Best Practices with Power Lines 1. 0000008392 00000 n startxref (3,2,1), (5,4,3). Is split (A) Shotgun sticks. The accident site was wet; also, humidity was high and the victim was sweating. endobj a.Conductive objects The small electrical current enters his body through his left leg. OSHA 29 CFR 1910, Subpart P . The factors that determine the severity of an electrical injury include: h|UnH}+i-. d. 20 feet. You need to evaluate the situation you are in and assess your . 0000005716 00000 n d.Alert workers of any water in the area, GFCI is an acronym for: 3. Using modified cords or tools, e.g., removing ground prongs, face plates, insulation, etc. Additional minimum clearance distance is required for power lines carrying over ________. Electric current cannot exist without an unbroken path to and from the conductor. Use only equipment that is approved to meet OSHA standards. 2. Stay at least 10 feet away from overhead power lines. 0000414648 00000 n Question 4: When a worker receives an electric shock, first aid must start within ___________ minutes. De-energize and ground lines when working near them. 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 Select the correct answer and then click on DONE. Using circuit breakers or fuses with the wrong rating for over-current protection, e.g. Electricity will form a "path" or "loop". A 20-year-old bricklayer standing on the work platform in contact with the main scaffold was electrocuted. Flexible Cord Not 3-Wire, Hard Service Variety: A worker received a fatal shock when he was cutting drywall with a metal casing router. <>>> The ________ keeps the electricity on its intended path through the conductor. As he removed the forms, he wrapped them with a length of cable called a choker, which was to be attached to a crane. 0000021516 00000 n OSHA Pros, LLC is an authorized provider of 360 Training, an OSHA-Accepted Provider, offering training and certification courses for NFPA 70E-Standard, and (See NFPA 70E-2021 Article 130 and OSHA subpart S part 1910.333 (a) (1)- (2) and (c) for complete details.) 1452 25 Lx*jWP# /c2)|]NXqAx>=~'[ d) All of the above. 3.When you are using portable power tools 0000420564 00000 n b.Metal 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. Question 3: A/an ____________ is a unit of measurement for electrical resistance. 2 0 obj Hand-operated metal shifting ropes or cables of electric elevators. 2.Is working properly 3. Contact utilities for buried power line locations. Match the length from job to outlet. 1.Damaged cover or insulation 0000427811 00000 n (D) None of the above. View Answer Answer: 600v 4 . 0000001604 00000 n When it completes a circuit through the body. 3.Body tissue b) By supplying GFCIs, or ground-fault circuit interrupters OSHA CONSTRUCTION FINAL EXAM Question and Answer Part 10. ly/homeo3b700 Which of the following is a resource within the. Additionally, the ground prong was missing and there was no GFCI protection. c. No, because the electricity is needed on a long-term basis. 1. To avoid injury or death, you must understand and recognize hazards. 0000002876 00000 n 0000002195 00000 n 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 A worker was removing a metal antenna when it made electrical contact with a 7200-volt power transmission line. c.40,000 volts 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. 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+ Intentionally creating a low-resistance path that connects to the earth. Is not broken, Question Text: Electrical tools should be grounded with a(n)________. Muscular contraction and nerve damage occur; death likely. When selecting the right extension cord, a good rule of thumb is to match the thickness of the extension cord to the thickness of: 0000003640 00000 n A co-worker disconnected the power cord to the saw, too late to save the victim. Safe operation of hand and portable powered tools and other hand-held equipment. 4.Organs, The presence of ________ can turn you, your equipment, or insulators like wood into conductors. Metal partitions, grill work, and similar metal enclosures around equipment of over 1kV between conductors. 0000015549 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. 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. 0000057373 00000 n HWMo#7v#h>6,Z4- g]+fn_m{mja_0Y w endstream endobj 189 0 obj <> endobj 190 0 obj <>stream How will she choose the correct cord? The scaffold had been constructed only 21 horizontal inches across from a 7,620-volt power line. 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 Which of these can be used as insulating live-line tools for electrical protection. 1.Flammable liquids 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. [, Use all equipment according to the manufacturer's instructions. 0000007694 00000 n 3. 12 months C. 6 months D. Never Q23. Question 4: Which of the following is a type of burn caused by electrical hazards? Quiz Question 4: Which is a preventive measure to prevent hazards while working with power lines? The contact lasts for 5 seconds before someone is able to shut off the power. Determine duration, frequency, degree of exposure to hazards and physical stress. d.50,000 volts. 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. Select the correct answer and then click DONE. a.A small current d.Metal, Over half of all deaths caused by electricity result from contact with ________. H. B. outdoors. 0000420277 00000 n 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? Among all of the safety measures that can and should be used to prevent electrical shock, which one is the most essential? -Rubber. 0000000816 00000 n Bob is asked to repair some overhead wiring, requiring the use a ladder. hazard or that their employer is not following OSHA's rules. 0000004444 00000 n c. Match the color of the tool to the color of the extension cord. 5. lb MKS 0000004686 00000 n If you are touching any grounded material while using a power tool 0000002733 00000 n 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? b.Ground Fault Critical Interrupter Ground all power supply systems, electrical circuits, and electrical equipment. 4.Circuit breakers, When inspecting power tools, look for:

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