The NEC C. Suggestions Carly needs to use an extension cord with her corded nail gun. d.Ground Fault Circuit Interrupter, : Another electrical hazard that can cause injury or death in the workplace is a ________ path to ground. OSHA 10 - Electrical Flashcards | Quizlet Both could have prevented the accident from occuring. (See NFPA 70E-2021 Article 130 and OSHA subpart S part 1910.333 (a) (1)- (2) and (c) for complete details.) Which of the following factors determine how severe an electrical injury might be? 0000001861 00000 n a) Ensure overhead power line safety 0000007116 00000 n A 29-year-old worker was electrocuted when he pushed a crane cable into a 7,200-volt power line. Explosion 3. Question 4: Which of the following is a type of burn caused by electrical hazards? 2.The person's physical condition 4.No, because he does not need to use an extension cord. Select the correct answer and then click DONE. Is split Electrical Safety Standards in the Workplace - NFPA 70E - Grainger KnowHow Electrical Contractors Industry. The following are electrical hazards: Shock. Use the terms (freezing, gas, liquid, physical changes, solubility, solution, temperature, volume) to complete the sentence. HWMo#7v#h>6,Z4- endobj 2.Using extension cords or electrical tools properly. Metal partitions, grill work, and similar metal enclosures around equipment of over 1kV between conductors. a.311 A measure of the energy of motion of the particles in a substance is its _____. !DP#vr-\DM<6V-2'I5l6)Z@^m=}c3-aUOo6rr V-Y3d6HABmjD $TQCvK*eg&|Y596#H\ OSHA 29 CFR 1910.147 . <> 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: d.50,000 volts. xb```VVF A10p,``Pp`hhdpn``r`L:[ I,aZ4Knj21 `ny; Ge7t@OrMx)"cx&e:[~J%aUJ\*t D. near other electrical equipment. The workers had removed their shirts and were sweating. The contact lasts for 5 seconds before someone is able to shut off the power. hazard or that their employer is not following OSHA's rules. (a) Describe the reaction between the hydride ion and water in terms of a Bronsted acid-base reaction. 0000002386 00000 n Electricity to operate portable power tools was supplied by a temporary service pole 50 feet away. c.911 The router's 3-wire power cord was spliced to a 2-wire cord and plug set which was not rated for hard service. 1. Before work began, the company safety director made sure that insulated line hoses were placed over sections of the the power line near the jobsite and that a safety clearance zone was marked off for arriving cement trucks. 0000055319 00000 n D 600v. Does the fall qualify as an electrical accident? Dirk, a 28-year-old mechanic, is performing maintenance on a piece of equipment when he is shocked. Use only extension cords that are 3-wire type. Quiz Question 3: Power cords can be damaged by which of the following? xYmo -ER/&@[D,_! CCOHS: Electrical Safety - Basic Information 1.Is firmly connected What is the most common, non-fatal, electrical shock-related injury? 2. c.15 feet 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. Unless you know otherwise, assume that overhead lines are energized. 5 feet 3.No, because he will not be touching any grounded material when using the tool. 0000420564 00000 n -If current passes through the body near the heart or brain. 2. b.30,000 volts 0000003254 00000 n You should? (B) Switch sticks. 0000002876 00000 n 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. a.Supply power for tools or equipment on a temporary or short-term basis. Select the correct answer and then click DONE. When inspecting extension cords, look for: he most common shock-related injuries are: 1 0 obj 0000005716 00000 n 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: 0000028595 00000 n Power was supplied through two extension cords from a nearby residence. Ground all exposed metal parts of equipment. Electrical - Overview | Occupational Safety and Health Administration 2.Something to transport the electrical current -- A conductor. Outlets In addition to contact with power lines, the top electrical hazards include: A 56-year-old construction laborer was removing forms from a concrete wall poured several days earlier. 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. The modification of the plug was not an intended use or prescribed by the manufacturer. Extension cords are used to: 0000002479 00000 n 0000006152 00000 n 3.The length of time the body is in contact with electricity What do tripped circuit breakers and blown fuses indicate? b.Metal This is action is also known as creating or completing an electrical circuit. -Glass. Co-workers provided CPR, but were unable to revive the victim. Best Practices with Power Lines 1. 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 277v. 3. Question 3: A/an ____________ is a unit of measurement for electrical resistance. 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. eTool : Construction - Electrical Incidents | Occupational Safety and OSHA 10 General Industry Topic Exams Answer Key TOPIC EXAM 1: INTRO TO OSHA 1. 0000110659 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. endobj 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. OSHA: How Electricity Works Flashcards | Quizlet Stay at least 10 feet away from overhead power lines. H. Select the correct answer and then click DONE. b.Yes, because Bob was on . a.Conductive objects 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. 0000108920 00000 n OSHA 10 General Industry Test Answer Key WALKING. Even when the power system is properly grounded, electrical equipment can instantly change from safe to hazardous because of extreme conditions and rough treatment. Gloves used for electrical work must be inspected and tested prior to use, and be certified every: A. A) Identify; Castigate; C) Evaluate; D) Modify; 3. 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). 0000002403 00000 n When current travels through your body - Definition of electric shock. Frames of non-electrically driven elevator cars to which electric conductors are attached. d.Water, Other electrical hazards in the workplace include: trailer <<11AC4BACEBCA4B32A885F1120BD3A307>]>> startxref 0 %%EOF 153 0 obj <>stream using a 30-amp breaker in a system with 15- or 20-amp receptacles. The source of the shocks -- the saw -- was not replaced. c.Guaranteed Fault Circuit Interrupter -Conductor= permits the free flow of electricity. Quiz Question 4: Which is a preventive measure to prevent hazards while working with power lines? Study with Quizlet and memorize flashcards containing terms like OSHA's electrical standards are based on: A. ANSI standards B. Extension cords may become a trip hazard when: If a defective power tool gives you an electric shock, how might your muscles react? c.The outlet. a.A small current Among all of the safety measures that can and should be used to prevent electrical shock, which one is the most essential? Test your knowledge with our electrical safety quiz below. Switch 4. 2.Flooding 3. =EAn`u!d, |\~Y>ZF( dnLN\2vP6 >sSjgh2:Lmqx#a[G2{h$zW]_:@Lvr)2T:R-/ `&~O4j)>1P*M 5>F:1B.g!AR Which of the following are insulators of electricity? 4,600. a. Gaseous matter Contact utilities for buried power line locations. 1.Damaged cover or insulation d.Add more outlets. BIOLOGICAL HAZARDS: term effects) and strain (longAssociated with working with animals, people, or infectious plant materials. b.Yes, as it would be too expensive to install more permanent wiring and receptacles. D. Communicate the hazard to the crew and subs, use signs and bar E. Both C and D Q22. Question 2: Which of the following are ways employers must protect their employees on the workplace? 0000004884 00000 n [, Use all equipment according to the manufacturer's instructions. 4 0 obj OSHA 30 Construction Final Test Answer Key - Studylib Question 1: Each year, approximately __________ workers suffer from electricity related injuries. Select the correct answer and then click DONE. 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. Fatal electrocution is the main risk, but burns and falls from elevations are also hazards. 0000068035 00000 n 0000420277 00000 n View Best Practices with Power Lines Quiz OSHA 30.docx from OSHA 30 at Columbia Southern University. 4. 1.When you are using electricity near water 0000014257 00000 n b.Electrical tools (b) The same reaction can also be classified as a redox reaction. V1?`T`P``ya W3 |"H36K1A@, rO(V[|NAT30 qI? endstream endobj 221 0 obj <>/Filter/FlateDecode/Index[30 152]/Length 27/Size 182/Type/XRef/W[1 1 1]>>stream PDF Working Safely with Electricity - Occupational Safety and Health Identify the oxidizing and reducing agents. Exercise their rights under the law without retaliation, including reporting an injury or raising health and safety concerns with their employer or OSHA. 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. Quiz: Electrical Hazards. Match the length from job to outlet. 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? a.Electricity 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 Best practices with power lines include: 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. Others, such as office workers and sales people, work with electricity indirectly and may also be exposed to electrical hazards. and more. The factors that determine the severity of an electrical injury include:
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