a.Your thumb. Gloves used for electrical work must be inspected and tested prior to use, and be certified every: A. The presence of ______ can turn you, your equipment, or insulators like wood, into conductors. A) 120v . 3.Clear Reportedly, he was shocked throughout the morning, and he had replaced one of the extension cords in an effort to eliminate the shocks. [Flexible Cords and Power Tools]. qnde>9!.,T2 :hw5 #OaPxkx=y7]J-yv*'H$jmVCq$ sx:R2$9SY+D!!LJ:n+.\#Hu~2VI O? Others, such as office workers and sales people, work with electricity indirectly and may also be exposed to electrical hazards. %PDF-1.5 Which one of these methods MOST effectively protects machines, tools, and operators against damage from electrical current? Question 4: Which of the following is a type of burn caused by electrical hazards? 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. 0000010155 00000 n OSHA: Air Monitoring & Medical Surveillance, 5 ANO - RETOMANDO ARTIGO, SUBSTANTIVO E ADJE. 1476 0 obj <>stream a.Yes, because the electrical shock caused the fall. 1.Flammable liquids Select the correct answer and then click DONE. 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. d.Adapter, What is a GFCI? 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. Is the west coast of Africa a plate boundary? 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. BE SAFE! 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.Combustible dust, Fundamentals of Engineering Economic Analysis, David Besanko, Mark Shanley, Scott Schaefer. 1.Clench Water Additionally, the ground prong was missing and there was no GFCI protection. View Best Practices with Power Lines Quiz OSHA 30.docx from OSHA 30 at Columbia Southern University. b.Yes, because Bob was on . The pole had not been inspected by the city and was not in compliance with code requirements (it was not grounded). 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. b. Deductive objects a.related to muscle damage. When the victim reached down to connect the choker to the hoist cable, he suddenly collapsed. An employee was texturing a wall using an air compressor. A 20-year-old bricklayer standing on the work platform in contact with the main scaffold was electrocuted. Quiz Question 2: Which is acceptable when using powdered tools? 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. Best Practices with Power Lines 1. a.Shut off power within a fraction of a second c) Establish and enact an assured equipment grounding conductor program (AEGCP) 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: Electrical Safety Standards in the Workplace - NFPA 70E - Grainger KnowHow b) By supplying GFCIs, or ground-fault circuit interrupters hb``b``=p0X8n0lY0L#rK[V26h* @0H!XDl+!&FfUfo`h6l A co-worker disconnected the power cord to the saw, too late to save the victim. 0000007427 00000 n [. a.A small current Is not broken, Question Text: Electrical tools should be grounded with a(n)________. D. Have an ANSI sticker and an expiration date. b.Electrical tools 0000013999 00000 n Question 1: Each year, approximately __________ workers suffer from electricity related injuries. 0000420887 00000 n <>>> c. Inductive objects 0000108653 00000 n Quiz Question 7: Which is not an insulator? Using circuit breakers or fuses with the wrong rating for over-current protection, e.g. Death. 3.Maintaining a safe distance of at least 10 feet from all overhead power lines. 0000018681 00000 n 1. c.Wood 0000007694 00000 n d) All of the above. A fault occurred, and with no grounding and no GFCI protection, the worker was electrocuted. 0000414648 00000 n 0000001896 00000 n Question 3: If following lock out/tag out procedures, what step should be taken BEFORE you shut down the equipment? This is action is also known as creating or completing an electrical circuit. 0000004444 00000 n 0000002479 00000 n PDF Electrical Safety - Occupational Safety and Health Administration 0000008392 00000 n The light fixture, which served as a ground, was known to be faulty for at least 5 months before the incident. Protection is lost because it will not trip when the system's load has been exceeded. Provides information about the hazards that electrical workers may experience as a part of their jobs. Computers Looking for NFPA 70E Certification? (b) The same reaction can also be classified as a redox reaction. In 2017, there were over ______________ electrical related violations cited by OSHA in the workplace. 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? 0000004965 00000 n a. Gaseous matter You need to evaluate the situation you are in and assess your . 0000004208 00000 n OSHA requires the testing of a volt meter after a voltage test on voltage above_____. 2.Placed along a wall. Suppose a volcano threw so much ash into the air that it blocked much of the sunlight. The auger has a one-quarter horsepower motor encased in a metal housing with two handles. eTool : Construction - Electrical Incidents | Occupational Safety and 0000002386 00000 n Using multi-receptacle boxes designed to be. Use the terms (freezing, gas, liquid, physical changes, solubility, solution, temperature, volume) to complete the sentence. When the energized conductor made contact with the ladder, the path to ground included the worker's body, resulting in death. OSHA: How Electricity Works Flashcards | Quizlet BIOLOGICAL HAZARDS: term effects) and strain (longAssociated with working with animals, people, or infectious plant materials. 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 3.Vapor Used across walkways. 0000110659 00000 n 0000001495 00000 n Post warning signs. q>NmnLNmb$"Iyx1bD9.~Ll. Electrical Safety Multiple Choice Questions(MCQs) & Answers - gkseries Take any defective equipment out of service. Extension cords are used to: Question 2: Which of the following are ways employers must protect their employees on the workplace? Select the correct answer and then click DONE. Burns. a. 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. !DP#vr-\DM<6V-2'I5l6)Z@^m=}c3-aUOo6rr V-Y3d6HABmjD $TQCvK*eg&|Y596#H\ 0000002122 00000 n 0000000016 00000 n (D) None of the above. _.9u'2G_0 Ue]e"x5|Y The scaffold had been constructed only 21 horizontal inches across from a 7,620-volt power line. High humidity The following are electrical hazards: Shock. Ground all power supply systems, electrical circuits, and electrical equipment. These short objective type questions with answers are very important for competitive exams as well as Board exams. . Overhead and buried power lines at your site are especially hazardous because they carry extremely high voltage. d. 20 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. 0000005632 00000 n 0000001604 00000 n Find the volume of the parallelepiped determined by the vertices (1,1,1),(4,7,2) . % lex has set up a mobile engine testing station in the maintenance area. Electrocution. 0000003771 00000 n Short Confined spaces Machinery-related hazards (lockout/tagout, boiler safety, forklifts, etc.) True. What was Latoya's first mistake? A laborer carried a piece of wire reinforcement (10 feet long by 8 inches wide) along the top section of the scaffold and contacted the power line with it. Co-workers provided CPR, but were unable to revive the victim. 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. 0000004946 00000 n Use only extension cords that are marked with a designation code for hard or extra-hard usage. Which of the following can be caused by exposure to an arc flash? Select the correct answer and then click DONE. 4 0 obj The workers administered CPR to the victim, but to no avail. 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. OSHA 29 CFR 1910, Subpart S . =EAn`u!d, |\~Y>ZF( dnLN\2vP6 >sSjgh2:Lmqx#a[G2{h$zW]_:@Lvr)2T:R-/ `&~O4j)>1P*M 5>F:1B.g!AR 182 0 obj <> endobj xref 182 41 0000000016 00000 n 30 days B. 0000005734 00000 n 0000012360 00000 n 0000003900 00000 n A Safety Electrical One Line Diagram should be used to _____ all sources of electrical energy. Extension cords may become a trip hazard when: Use tools and equipment according to the instructions included in their listing, labeling or certification. Which of the following are electrical hazards? - Brainly.com Quiz Question 3: Power cords can be damaged by which of the following? Use only cords, connection devices, and fittings that are equipped with strain relief. c.The outlet. 2. 3 0 obj Select the correct answer and then click on DONE. Which group would be more accurate when used in an accelerating spaceship? The following references aid in recognizing hazards associated with electrical work. d.Add more outlets. 2.Loss of muscle control b. This may damage your equipment and cause employee injuries. Question 2: It's okay to use extension cords with worn insulation, as long as you are careful about it. Using modified cords or tools, e.g., removing ground prongs, face plates, insulation, etc. C 277v. c. Extend the reach of the power tool. The router's 3-wire power cord was spliced to a 2-wire cord and plug set which was not rated for hard service. 0000007116 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. The most dangerous place to use electrical equipment is? Select the correct answer and then click DONE. OSHA 10 General Industry Topic Exams Answer Key TOPIC EXAM 1: INTRO TO OSHA 1. Quiz Question 5: A/an ___________ is a unit of measurement for electrical resistance. -Severe skin burns. When used on the moon? a.Yes, as it is a mobile engine testing station. 3.Loss of eyesight 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. 3.No, because he will not be touching any grounded material when using the tool. Is split 1.Is firmly connected 0000002733 00000 n trailer <<11AC4BACEBCA4B32A885F1120BD3A307>]>> startxref 0 %%EOF 153 0 obj <>stream Get All Answers to OSHA 30 Construction Final Exam. Which of the following can be the result of electric shock? vpfuI)],s Do not remove ground prongs from cord- and plug-connected equipment or extension cords. Study with Quizlet and memorize flashcards containing terms like Bob is asked to repair some overhead wiring, requiring the use a ladder. 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. 1.Extension cords 0000015549 00000 n 0000001116 00000 n using a 30-amp breaker in a system with 15- or 20-amp receptacles. If you are touching any grounded material while using a power tool 0000002403 00000 n H. Use only extension cords that are 3-wire type. Muscular contraction and nerve damage occur; death likely. Follow manufacturers' recommended testing procedure to insure GFCI is working correctly. As the victim climbed down a makeshift ladder, he shifted the saw from his right hand to his left, and was shocked. h|UnH}+i-. What type of burns are the result of current flowing through and exiting the body? 1. and more. stream Quiz: Electrical Hazards. 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. Select the correct answer and then click DONE. Electrical current travels through insulated ________. 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: Continually audit cords on-site. c.Touching the motor How fast would the ball be moving at the moment of release? CCOHS: Electrical Safety - Basic Information Look for overhead power lines and buried power line indicators. Bob is asked to repair some overhead wiring, requiring the use a ladder. If a worker has been retaliated against for using their rights, they <<7628BB2D46738F42B2FC6393656F4718>]>> gYpV:+ -Falls. Does the fall qualify as an electrical accident? De-energize and ground lines when working near them. Using tools and equipment that can contact power lines increases the risk. What is the primary purpose of properly grounding equipment? To avoid injury or death, you must understand and recognize hazards. 2. 3.Cramp d. Power outlets, ________ are anything that can transmit electrical current. 3. 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. Among all of the safety measures that can and should be used to prevent electrical shock, which one is the most essential? c.Gasoline <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 792 612] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> trailer endobj Frequently inspect electrical systems to insure that the path to ground is continuous. he most common shock-related injuries are: The small electrical current enters his body through his left leg. 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$]r**-I!o66PqK.z "*D A. indoors. uVNSF!UTRQ91uR,6@hCH}]GAlaPh)NeT$iQ89S9|?4wahU ltz9 PH[$I&VX9WG%K~1{u8M:D"+HLEy 3@NR^z!rB^?RyOj;'Lof. He may have dropped the extension cord at the site and not heard the connector break. 3. Effective means of controlling power line hazards include: Metal partitions, grill work, and similar metal enclosures around equipment of over 1kV between conductors. The NEC C. Suggestions 2.Loose screws On the day of the incident, the victim plugged in a damaged extension cord and laid it out towards the bulkhead. Osha 10 test answers 2021 quizlet - Math Questions endobj 0000024814 00000 n a.Supply power for tools or equipment on a temporary or short-term basis. *Effects are for voltages less than about 600 volts. [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. 1.Is faulty c.911 . The modification of the plug was not an intended use or prescribed by the manufacturer. 0000420277 00000 n Select the correct answer and then click DONE. b.The tool's power cord. 0000017163 00000 n 0000001672 00000 n If the insulation on the tool's power cord is damaged and you touch this area while grounded, the electricity will ________. [, Use all equipment according to the manufacturer's instructions. Using cords or tools with worn insulation or exposed wires. Electrical Safety Quiz Electrical safety is an important topic that you and your workers need to know about. b.Yes, as it would be too expensive to install more permanent wiring and receptacles. 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. 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. Frames of non-electrically driven elevator cars to which electric conductors are attached. 0000004274 00000 n No GFCI's were used. 3.The length of time the body is in contact with electricity Most of the hydrides of Group 1A and Group 2A metals are ionic. 4.Circuit breakers, When inspecting power tools, look for: a. Which of the following are insulators of electricity? As he removed the forms, he wrapped them with a length of cable called a choker, which was to be attached to a crane. s\A0W+ Dirk, a 28-year-old mechanic, is performing maintenance on a piece of equipment when he is shocked. Question 1: Which of the following is a danger of electricity? d.Constructive objects, Select all answers that apply to the following statement and then click DONE. [29 CFR 1926.416(a)(1)]. 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. Two of the extension cords had no ground prongs, and some of them were repaired with electrical tape. Call ________ prior to digging to be connected with your local One Call Center to have all underground lines located by the utility company. Examples of Equipment That Can Contact Power Lines. 5 feet Use non-conductive wood or fiberglass ladders when working near power lines. Safe operation of hand and portable powered tools and other hand-held equipment. 0000005406 00000 n 3.Draped over equipment. Both the operator and the victim failed to notice that the boom had contacted a 2,400-volt overhead power line. This caused him to fall from the ladder and land in a puddle of water, still holding the saw. Electrocution was the second leading cause of worker deaths on construction sites in the United States in 2011. -Glass. [Flexible Cords and Power Tools] If there is no ground-fault protection, these can cause a ground-fault that sends current through the worker's body, resulting in electrical burns, explosions, fire, or death.

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