4.Good condition of moveable parts, Items that could encourage overheating and cause tools to malfunction or start a fire include: 0000006152 00000 n The scaffold had been constructed only 21 horizontal inches across from a 7,620-volt power line. 1.Damaged cover or insulation Burns. Quiz Question 5: A/an ___________ is a unit of measurement for electrical resistance. 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. 4.Must be replaced, Always use a GFCI: 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. Use only equipment that is approved to meet OSHA standards. 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. Electrocution. Effective means of controlling power line hazards include: Select the correct answer and then click DONE. <>>> OSHA CONSTRUCTION FINAL EXAM Question and Answer Part 10. ly/homeo3b700 Which of the following is a resource within the. Electrical Safety Assessment Quiz Answers | ISHN 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. 0000007427 00000 n 3.Something that causes current to flow through the . 4.Circuit breakers, When inspecting power tools, look for: When an electric shock occurs, your muscles may: OSHA 10 General Industry Test Answer Key WALKING. Match the length from job to outlet. 3.When you are using portable power tools a.Ground Fault Circuit Insulator OSHA 30 - Quiz 3 - Electrocution Hazards Flashcards | Quizlet 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. Electricity to operate portable power tools was supplied by a temporary service pole 50 feet away. Use only extension cords that are 3-wire type. As he is working on the wiring, he receives an electrical shock that knocks him backward and causes him to fall off the ladder. What type of burns are the result of current flowing through and exiting the body? Ajay needs to use a dewatering pump to drain standing water on a construction site. Besides personal bodily injury, what other electrical hazards can be found in the workplace? Osha 10 test answers 2021 quizlet - Math Questions 0000001731 00000 n HWMo#7v#h>6,Z4- c.15 feet Even when the power system is properly grounded, electrical equipment can instantly change from safe to hazardous because of extreme conditions and rough treatment. The first worker knocked the auger off the victim, but saw that the electric cord was wrapped around the victim's thigh. -Wood. As she is adding in the chemicals, her hand touches the motor and it becomes energized. a.Electricity Electrical Safety Multiple Choice Questions and Answers for competitive exams. 3.The length of time the body is in contact with electricity High humidity 2.Is working properly PDF Electrical Safety - Occupational Safety and Health Administration 0000001908 00000 n Use non-conductive wood or fiberglass ladders when working near power lines. 1.When you are using electricity near water Muscular contraction and nerve damage occur; death likely. [Power Tools]. BE SAFE! 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. b.Electrical tools 1. 0000007116 00000 n A fault occurred, and with no grounding and no GFCI protection, the worker was electrocuted. Of the following choices, which are frequent electrical hazards d.Constructive objects, Select all answers that apply to the following statement and then click DONE. In addition to contact with power lines, the top electrical hazards include: 2.Yes, because he is using a portable power tool. b.The tool's power cord. 2.Using an aluminum ladder when the possibility exists for contact with electricity. 3.Loss of eyesight Using cords or tools with worn insulation or exposed wires. You need to evaluate the situation you are in and assess your . What is the primary purpose of properly grounding equipment? B 208v. 2.Placed along a wall. b.Match the thickness of the extension cord to the thickness of the nail gun's power cord. c.A measurement of electricity C. near water. BIOLOGICAL HAZARDS: term effects) and strain (longAssociated with working with animals, people, or infectious plant materials. Wearing a baseball cap a. Which of the following injuries can occur when muscles flex or twitch from an electrical shock? The source of the shocks -- the saw -- was not replaced. Electrical hazards expose workers to the following: Burns: Three types; electrical, arc flash, or thermal contact. Select the correct answer and then click on DONE. Should Ajay use a GFCI? 1452 0 obj <> endobj Bob is asked to repair some overhead wiring, requiring the use a ladder. d.Metal, Over half of all deaths caused by electricity result from contact with ________. 1. which of the following are electrical hazards osha quizlet xb```VVF A10p,``Pp`hhdpn``r`L:[ I,aZ4Knj21 `ny; Ge7t@OrMx)"cx&e:[~J%aUJ\*t De-energize and ground lines when working near them. 4.The amount of current, An electrical burn may affect: Does the fall qualify as an electrical accident? How might this event affect the ability of animals to obtain energy to live? Select the correct answer and then click DONE. The length of time the body is in the circuit, in contact with electricity - Factor determining the severity of an electrical . Latoya is using a mixing motor to mix pool chemicals in a plastic drum. 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: Electrical hazards like frayed cords, missing ground pins, improper wiring or the harm that these hazards pose. OSHA: Common Electrical Hazards Flashcards | Quizlet Potential hazards of electricity are preventable if you do which of the following listed below? 10,000 milliamps (10 amps) Cardiac arrest and severe burns occur. The light fixture, which served as a ground, was known to be faulty for at least 5 months before the incident. Electrical Safety Quiz - OSHA.net Identify the oxidizing and reducing agents. 1. a. Gaseous matter Best Practices with Power Lines 1. 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. 0000001814 00000 n Unless you know otherwise, assume that overhead lines are energized. Stay at least 10 feet away from overhead power lines. The victim was totally deaf in one ear and suffered diminished hearing in the other. The presence of ______ can turn you, your equipment, or insulators like wood, into conductors. 4. (See NFPA 70E-2021 Article 130 and OSHA subpart S part 1910.333 (a) (1)- (2) and (c) for complete details.) Ground metal parts of the following non-electrical equipment, as specified by the OSHA standard [29 CFR 1926.404(f)(7)(v)]: Frames and tracks of electrically operated cranes. startxref Lx*jWP# /c2)|]NXqAx>=~'[ 0000000016 00000 n <> While attempting to unplug the compressor from the extension cord, the employee was fatally shocked. Provides information about the hazards that electrical workers may experience as a part of their jobs. 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 2.Using extension cords or electrical tools properly. 2. Quiz Question 6: Which of these is not a type of Ground Fault Circuit Adapter? a.Shut off power within a fraction of a second 0000004686 00000 n Electric current cannot exist without an unbroken path to and from the conductor. Cardiac arrest or death - A result of electrical shock. 0000420887 00000 n Supply power for tools or equipment on a long-term basis. 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. 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). 4.Flex Electrical hazards are life threatening incidents that could happen due to electricity. -Glass. (b) The same reaction can also be classified as a redox reaction. c.Guaranteed Fault Circuit Interrupter Question 2: Which of the following is NOT a category of electrical burns? 2.Loose screws Select the correct answer and then click DONE. 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. Fatal electrocution is the main risk, but burns and falls from elevations are also hazards. (3,2,1), (5,4,3). a.Yes, as it is a mobile engine testing station. Computers g]+fn_m{mja_0Y w endstream endobj 189 0 obj <> endobj 190 0 obj <>stream b.10 feet 0000427811 00000 n 3. The victim signaled the operator of the crane to extend the boom and lower the hoist cable. 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. Then answer the questions below. When he grasped the handle of the bucket to pull it down, the crane cable came into contact with the overhead line. [. 0000002122 00000 n and more. A 56-year-old construction laborer was removing forms from a concrete wall poured several days earlier. :$#k9BPnZ{Qqe/reKy,'ZlB# The auger has a one-quarter horsepower motor encased in a metal housing with two handles. Continually audit cords on-site. Quiz Question 4: Which is a preventive measure to prevent hazards while working with power lines? 0000005716 00000 n endobj Both could have prevented the accident from occuring. 4. 0000006893 00000 n In which of the following workplace situations are you at risk for coming into contact with live electrical . Using modified cords or tools, e.g., removing ground prongs, face plates, insulation, etc. 0000017163 00000 n The following references aid in recognizing hazards associated with electrical work. Electrical - Overview | Occupational Safety and Health Administration -Current= the movement of electrical charge. Determine duration, frequency, degree of exposure to hazards and physical stress. c.Wood C 277v. a. gYpV:+ Metal partitions, grill work, and similar metal enclosures around equipment of over 1kV between conductors. %PDF-1.4 % 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 1. Which of the following are caused by contact with electricity? 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. (a) Describe the reaction between the hydride ion and water in terms of a Bronsted acid-base reaction. 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. Question 3: If following lock out/tag out procedures, what step should be taken BEFORE you shut down the equipment? To avoid injury or death, you must understand and recognize hazards. 4.Running through doorways. %PDF-1.4 % Post warning signs. Select the correct answer and then click DONE. 2.The person's physical condition !DP#vr-\DM<6V-2'I5l6)Z@^m=}c3-aUOo6rr V-Y3d6HABmjD $TQCvK*eg&|Y596#H\ You can classify scales for weighing objects as those that use springs and those that use standard masses to balance unknown masses. 0000005632 00000 n Is split When selecting the right extension cord, a good rule of thumb is to match the thickness of the extension cord to the thickness of: Follow manufacturers' recommended testing procedure to insure GFCI is working correctly. Suppose a volcano threw so much ash into the air that it blocked much of the sunlight. <>>> Is not painted over PDF Electrical Hazards - Occupational Safety and Health Administration -Grounding= a conductive connection to the earth which acts as a protective measure. 1.Is firmly connected 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. Using equipment outdoors that is labeled for use only in dry, indoor locations. H. Underground electrical hazards are: A. If the power supply to the electrical equipment at your site is not grounded or the path has been broken, fault current may travel through a worker's body, causing electrical burns or death. 182 0 obj <> endobj xref 182 41 0000000016 00000 n 0000028595 00000 n Dust Gloves used for electrical work must be inspected and tested prior to use, and be certified every: A. A measure of the energy of motion of the particles in a substance is its _____. a.A small current @*@;z}IAH@3MsgU1Dnf@agLahpCn@&b|-^;b0k*!3VYy,jy%( Z%|\Jg"dRp-Wbz3QJS%k9p_WtZ b.burns. When the victim reached down to connect the choker to the hoist cable, he suddenly collapsed. b. Deductive objects c) Establish and enact an assured equipment grounding conductor program (AEGCP) endobj Call ________ prior to digging to be connected with your local One Call Center to have all underground lines located by the utility company. Additionally, the ground prongs were missing from the two cords. 2 0 obj Seven employees of a masonry company were erecting a brick wall from a tubular, welded-frame scaffold approximately 24 feet high. Contact utilities for buried power line locations. Visually inspect all electrical equipment before use. Check your employee's electrical safety knowledge through an electrical safety quiz. 0000005734 00000 n The victim was part of a crew that was constructing a concrete wall. Select the correct answer and then click DONE. c.Gasoline 3.Vapor Becoming part of the circuit exposes you to ________, the most dangerous electrical hazard. Many workers are unaware of the potential electrical hazards present in their work environment, which makes them more vulnerable to the danger of electrocution. eTool : Construction - Electrical Incidents | Occupational Safety and b) Staples Electrocution was the second leading cause of worker deaths on construction sites in the United States in 2011. Introduction To Osha Quiz Answers1) Which of the following activities qnde>9!.,T2 :hw5 #OaPxkx=y7]J-yv*'H$jmVCq$ sx:R2$9SY+D!!LJ:n+.\#Hu~2VI O? Be sure equipment that has been shop fabricated or altered is in compliance. Electrical Safety Multiple Choice Questions(MCQs) & Answers - gkseries vpfuI)],s Regarding hand protection employers should: A. 5. Co-workers provided CPR, but were unable to revive the victim. Easy to identify Protection is lost because it will not trip when the system's load has been exceeded. Two of the extension cords had no ground prongs, and some of them were repaired with electrical tape. 0000001116 00000 n -Falls. Select the correct answer and then click DONE. When current travels through your body - Definition of electric shock. B. outdoors. Freeze d.Add more outlets. Flexible Cord Not 3-Wire, Hard Service Variety: A worker received a fatal shock when he was cutting drywall with a metal casing router. Overview. PDF C. 0000004274 00000 n c. Extend the reach of the power tool. Which one of these methods MOST effectively protects machines, tools, and operators against damage from electrical current? Does the fall qualify as an electrical accident? OSHA 30 Module 6: Personal Protective Equipme, OSHA 30 - Module 16: Recordkeeping & Reporting, OSHA 30 - Module 18: Safety and Health Progra, OSHA 30 - Module 11: Welding, Cutting and Bra, CRJ 200 Limitations (Official-ish) - MODDED (, SERE 100.2 Level A SERE (J3TA-US1329) (Civili, Fundamentals of Engineering Economic Analysis, David Besanko, Mark Shanley, Scott Schaefer, E. Russell Johnston, Ferdinand Beer, Phillip Cornwell. Work performed on an electrical system within reaching distance of energized components is_____work. 12 months C. 6 months D. Never Q23. Question 3: Employers are not required to enforce lock out/tag out practices in the workplaces. Explosion 0000024814 00000 n I;C`_;LV'd,|#H--e`( ')'RpAgA7O`?%68SB Before using the equipment, be sure that the ground wire: 0000002150 00000 n Using circuit breakers or fuses with the wrong rating for over-current protection, e.g. OSHA: Air Monitoring & Medical Surveillance, WebQuest: Biomes, Ecosystems and Habitats. b.A fast-acting switch monitoring current flow One handle has a deadman's switch. To be safe, you must think about your job and plan for hazards. You discover the electrical cord on a drill has been damaged and some of the cord's insulation is missing. b.Shut off power within five minutes of the imbalance b. 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 -Conductor= permits the free flow of electricity. The individual's perspiration-soaked clothing/body contacted bare exposed conductors on one of the cords, causing an electrocution. Course 812 Module 7 OSHA Focus Four Hazards: Electrocution - OSHAcademy Ground metal parts of the following non-electrical equipment, as specified by the OSHA standard [, Frames and tracks of electrically operated. . Which of these can be used as insulating live-line tools for electrical protection. . c.Power lines 0 d.Alert workers of any water in the area, GFCI is an acronym for: View Answer Answer: 600v 4 . OSHA 29 CFR 1910, Subpart P . 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. a.Supply power for tools or equipment on a temporary or short-term basis. b.Ground Fault Critical Interrupter 0000003715 00000 n d) All of the above. Which group would be more accurate when used in an accelerating spaceship? Equipment used in manner prescribed. Lockout/tagout procedures. Additionally, the ground prong was missing and there was no GFCI protection. Select the correct answer and then click DONE. 1.Clench 2. 0000017336 00000 n Use the terms (freezing, gas, liquid, physical changes, solubility, solution, temperature, volume) to complete the sentence. SCENARIO: You encounter a co-worker on a residential remodeling job. s\A0W+ 1. 1.Fingernails As he is working on the wiring, he receives an electrical shock that knocks him backward and causes him to fall off the ladder. 0000014257 00000 n 2. 1.Missing or broken path to ground. 0000422244 00000 n The driver stopped the truck under the power line, and the victim, not realizing that the truck had moved, swung the boom to position the bucket behind the truck. A) 120v . 0000021516 00000 n 5>vB35Plm$\4{U[lU`t~.vJGmFO^@+ cGPzNY*oS(m%q{Agp Carly needs to use an extension cord with her corded nail gun. <> Use tools and equipment according to the instructions included in their listing, labeling or certification. OSHA: How Electricity Works Flashcards | Quizlet This is action is also known as creating or completing an electrical circuit. 2. Question 4: Which of the following is a type of burn caused by electrical hazards? Study with Quizlet and memorize flashcards containing terms like OSHA's electrical standards are based on: A. ANSI standards B. Find the volume of the parallelepiped determined by the vertices (1,1,1),(4,7,2) . The accident site was wet; also, humidity was high and the victim was sweating. 0000012360 00000 n OSHA 29 CFR 1910.147 . c. Match the color of the tool to the color of the extension cord. CCOHS: Electrical Safety - Basic Information Explosion. Best practices with power lines include: A 120v. A co-worker disconnected the power cord to the saw, too late to save the victim. c.The outlet. (See NFPA 70E-2021 Article 130 and OSHA subpart S part . (B) Switch sticks. Power was supplied through two extension cords from a nearby residence. d. Power outlets, ________ are anything that can transmit electrical current. d.Ground Fault Circuit Interrupter, : Another electrical hazard that can cause injury or death in the workplace is a ________ path to ground. 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. Working with electricity can be dangerous. Attaching ungrounded, two-prong adapter plugs to three-prong cords and tools. 0000005520 00000 n c.911 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. 0000012944 00000 n 30 days B. Take any defective equipment out of service. 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 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. 2 0 obj A. indoors. Provide a safe path to earth ground for electricity. 0000003603 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. 0000001646 00000 n Get resources on specific hazards and their control, including identification, risk assessment and inspections, to keep your workplace healthy and safe. -Rubber. 21 Examples Of Electrical Hazards - HSEWatch A worker was removing a metal antenna when it made electrical contact with a 7200-volt power transmission line. A 20-year-old bricklayer standing on the work platform in contact with the main scaffold was electrocuted. c.Three-prong plug Overhead and buried power lines at your site are especially hazardous because they carry extremely high voltage. Get All Answers to OSHA 30 Construction Final Exam. 0000108653 00000 n Used across walkways. OSHA-10: Avoiding Electrocution Hazards Flashcards | Quizlet The victim collapsed into the lake and sank 4-1/2 feet to the bottom. 3. trailer <<11AC4BACEBCA4B32A885F1120BD3A307>]>> startxref 0 %%EOF 153 0 obj <>stream Extension cords may become a trip hazard when: