0000009628 00000 n As he removed the forms, he wrapped them with a length of cable called a choker, which was to be attached to a crane. 0000007694 00000 n High humidity b.10 feet 0000068035 00000 n )KL3C?e%Y92$,]^)kmR/!8\ JF N'bT\U1+tc+&:'ZuGi!UeUrE [?CrU.&|#@Ed,=2UF]r/n/{v-;v>%/~;[*AxBU,-#!uyFGR,Wv[ cOzObnZfI4ob:pf "~ .iBE@mOs:Os5U9cnU` Vd"F'4Bm?>}hyRQyrX0U026h7#L'. 4.Cardiac arrest b. 4.The amount of current, An electrical burn may affect: The workers administered CPR to the victim, but to no avail. 0000001116 00000 n 0000001896 00000 n Test your knowledge with our electrical safety quiz below. A. wrap tape around the damaged spot to prevent electrical shocks. 3.Something that causes current to flow through the . a.311 HJ=S~68438IR/:VR C Y<7H*$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 d.Adapter, What is a GFCI? If the electrical conductors become exposed, there is a danger of shocks, burns, or fire. 2.Loose bolts Potential hazards of electricity are preventable if you do which of the following listed below? d.50,000 volts. c) Age Identify the oxidizing and reducing agents. Electrocution was the second leading cause of worker deaths on construction sites in the United States in 2011. Outlets De-energize and ground lines when working near them. 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. H. b) Staples 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. 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. lb MKS Death. gYpV:+ 0000420564 00000 n 0000422244 00000 n Switch OSHA CONSTRUCTION FINAL EXAM Question and Answer Part 10. ly/homeo3b700 Which of the following is a resource within the. . 0000003715 00000 n 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). Visually inspect all electrical equipment before use. 12 months C. 6 months D. Never Q23. 2.Is working properly Fire 1.Is firmly connected 3. 1.A source of electrical current to flow. 0000005632 00000 n Best Practices with Power Lines 1. You should? 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. a.Yes, as it is a mobile engine testing station. Electricity to the auger was supplied by a series of 50-foot extension cords running to an adjacent property. The modification of the plug was not an intended use or prescribed by the manufacturer. OSHA 10 General Industry Topic Exams Answer Key TOPIC EXAM 1: INTRO TO OSHA 1. D. near other electrical equipment. As the victim climbed down a makeshift ladder, he shifted the saw from his right hand to his left, and was shocked. 2. Draw a line from the item on the left that corresponds to the match on the right. 3.No, because he will not be touching any grounded material when using the tool. 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. 3.The length of time the body is in contact with electricity Use the terms (freezing, gas, liquid, physical changes, solubility, solution, temperature, volume) to complete the sentence. b. Deductive objects Question 1: Which of the following is a danger of electricity? 1. Question 3: Employers are not required to enforce lock out/tag out practices in the workplaces. The source of the shocks -- the saw -- was not replaced. Electrical current travels through insulated ________. Electrical hazards expose workers to the following: Burns: Three types; electrical, arc flash, or thermal contact. 1,[-c|"&u[Fu>wjte8j:xRk )"m_!6awT J,byp?fRBf?p|b3/Um\7"|+@5vvWAa5J^y*q,l b)Ftt4 :4,-J`! 4. 3.Tears (See NFPA 70E-2021 Article 130 and OSHA subpart S part 1910.333 (a) (1)- (2) and (c) for complete details.) b.Metal 3.Loose nuts 0 d. Power outlets, ________ are anything that can transmit electrical current. 2. Electrical safety requirements necessary for the practical safeguarding of employees in the workplace. As he is working on the wiring, he receives an electrical shock that knocks him backward and causes him to fall off the ladder. Quiz Question 7: Which is not an insulator? 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: The router's 3-wire power cord was spliced to a 2-wire cord and plug set which was not rated for hard service. B 208v. 2.Flooding After the wall was poured, one driver cleaned the loading chute of his cement truck with a water hose mounted on the truck. Explain the process that prevents the poles from steadily cooling off and the tropics from heating up over time. One hand drill was not grounded, and the other had no safety plate. c. Extend the reach of the power tool. b.Shut off power within five minutes of the imbalance 4 0 obj How will she choose the correct cord? 0000010155 00000 n Select the choices that accurately define the common electrical term. The laborer, who was wearing leather gloves, received an electric shock and dropped the wire reinforcement, which fell across the power line and simultaneously contacted the metal rail of the scaffold, energizing the entire scaffold. trailer <<11AC4BACEBCA4B32A885F1120BD3A307>]>> startxref 0 %%EOF 153 0 obj <>stream 0000008392 00000 n 1.Extension cords 3 0 obj He plans to use it over a period of at least six months. 0000003413 00000 n 4.Good condition of moveable parts, Items that could encourage overheating and cause tools to malfunction or start a fire include: 3. Bob is asked to repair some overhead wiring, requiring the use a ladder. 1.Flammable liquids (b) The same reaction can also be classified as a redox reaction. OSHA 29 CFR 1910, Subpart S . d.Water, Other electrical hazards in the workplace include: Working with electricity can be dangerous. She finds several available in the shop. When it completes a circuit through the body. 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. Which of the following are conductor of electricity? d.Constructive objects, Select all answers that apply to the following statement and then click DONE. 1.When you are using electricity near water Using equipment outdoors that is labeled for use only in dry, indoor locations. The most dangerous place to use electrical equipment is? Engineers, electricians, and other professionals work with electricity directly, including working on overhead lines, cable harnesses, and circuit assemblies. Work performed on an electrical system within reaching distance of energized components is_____work. Which of the following injuries can occur when muscles flex or twitch from an electrical shock? c.Guaranteed Fault Circuit Interrupter Lockout/tagout procedures. vpfuI)],s Remove cords from receptacles by pulling on the plugs, not the cords. 1476 0 obj <>stream 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. c.40,000 volts Using tools and equipment that can contact power lines increases the risk. -Glass. B. outdoors. c. Match the color of the tool to the color of the extension cord. The victim provided a path to ground and was electrocuted. 0000421920 00000 n 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 b.Yes, because Bob was on . b.burns. . b) By supplying GFCIs, or ground-fault circuit interrupters No GFCI's were used. What was Latoya's first mistake? stream c.15 feet Is not painted over Looking for NFPA 70E Certification? What three things must be present for a current to flow through a conductor. Which of the following are insulators of electricity? 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. Select the correct answer and then click DONE. %PDF-1.5 and more. You can classify scales for weighing objects as those that use springs and those that use standard masses to balance unknown masses. 3.Vapor b.The tool's power cord. Post warning signs. 0000005042 00000 n This caused him to fall from the ladder and land in a puddle of water, still holding the saw. Which group would be more accurate when used in an accelerating spaceship? 0000000816 00000 n -Current= the movement of electrical charge. Apparently, his hand contracted and he was "locked" to the saw. Select the correct answer and then click DONE. BE SAFE! 0000028595 00000 n 2. Is the west coast of Africa a plate boundary? endobj Both the operator and the victim failed to notice that the boom had contacted a 2,400-volt overhead power line. 4.No, because he does not need to use an extension cord. What is the output of the program in Exercise 17, if first = 26 and second = 8? Underground electrical hazards are: A. Use non-conductive wood or fiberglass ladders when working near power lines. 0000001814 00000 n 0000427811 00000 n 3.ack of ground fault protection. 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. =EAn`u!d, |\~Y>ZF( dnLN\2vP6 >sSjgh2:Lmqx#a[G2{h$zW]_:@Lvr)2T:R-/ `&~O4j)>1P*M 5>F:1B.g!AR 2.Complete 4.Must be replaced, Always use a GFCI: C. near water. Which of the following are caused by contact with electricity? 0000004793 00000 n 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). 3 0 obj d. heart attacks. % If electrical equipment is used in ways for which it is not designed, you can no longer depend on safety features built in by the manufacturer. 2 0 obj 3. Select the correct answer and then click DONE. 4.Combustible dust, Fundamentals of Engineering Economic Analysis, David Besanko, Mark Shanley, Scott Schaefer. c.Absorb any water around the area As she is adding in the chemicals, her hand touches the motor and it becomes energized. 0000010603 00000 n 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. 0000419562 00000 n Explain the purpose and use of the MyPlate symbol. Before using the equipment, be sure that the ground wire: OSHA 10-Hour Safety Course - Electrical Safety Page 5 of 5 Use the three-stage safety model to stay safe: recognize, evaluate, and control hazards. !DP#vr-\DM<6V-2'I5l6)Z@^m=}c3-aUOo6rr V-Y3d6HABmjD $TQCvK*eg&|Y596#H\ 0000420887 00000 n 0000005734 00000 n The \rule{1cm}{1pt} artery carries deoxygenated blood from the heart to the lungs. Electrical Safety Quiz Electrical safety is an important topic that you and your workers need to know about. Ground all power supply systems, electrical circuits, and electrical equipment. 0000021516 00000 n d.Add more outlets. a) Door or window edges 0000024814 00000 n 0000007741 00000 n Provide a safe path to earth ground for electricity. 0000420277 00000 n The small electrical current enters his body through his left leg. a.A small current OSHA Safety and Health Topics Page. 0000003603 00000 n Electricity to operate portable power tools was supplied by a temporary service pole 50 feet away. (E) a, b, and c. 2. OSHA requires the testing of a volt meter after a voltage test on voltage above_____. 3.Cramp 4.Broken. Question 3: A/an ____________ is a unit of measurement for electrical resistance. 0000421627 00000 n 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. Electrical hazards are life threatening incidents that could happen due to electricity. 5. Visually inspect all electrical equipment before use. 1.Clench If a defective power tool gives you an electric shock, how might your muscles react? 0000007427 00000 n 3.Clear He yelled for his co-workers to disconnect the power, which they did. A co-worker disconnected the power cord to the saw, too late to save the victim. 0000002122 00000 n 0000007116 00000 n He may have dropped the extension cord at the site and not heard the connector break. Quiz Question 6: Which of these is not a type of Ground Fault Circuit Adapter? When used on the moon? Using modified cords or tools, e.g., removing ground prongs, face plates, insulation, etc. 3. 0000005050 00000 n 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. 4.Circuit breakers, When inspecting power tools, look for: <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 792 612] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> 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. In 2017, there were over ______________ electrical related violations cited by OSHA in the workplace. 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. 0000015549 00000 n b.811 _.9u'2G_0 Ue]e"x5|Y Question 2: It's okay to use extension cords with worn insulation, as long as you are careful about it. Other protective measures include guarding or insulating the lines. (3,2,1), (5,4,3). 2. These short objective type questions with answers are very important for competitive exams as well as Board exams. 4.Running through doorways. c.Wood endobj 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. trailer <]/Prev 500768/XRefStm 1495>> startxref 0 %%EOF 222 0 obj <>stream Select the correct answer and then click DONE. Dust uVNSF!UTRQ91uR,6@hCH}]GAlaPh)NeT$iQ89S9|?4wahU ltz9 PH[$I&VX9WG%K~1{u8M:D"+HLEy 3@NR^z!rB^?RyOj;'Lof. D. Communicate the hazard to the crew and subs, use signs and bar E. Both C and D Q22. When he grasped the handle of the bucket to pull it down, the crane cable came into contact with the overhead line. Which of the following factors determine how severe an electrical injury might be? 1.Cuts De-energizing When current travels through your body - Definition of electric shock. 2.Yes, because he is using a portable power tool.
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