New River Middle School Uniform, Articles W

Of the following choices, which are frequent electrical hazards After the wall was poured, one driver cleaned the loading chute of his cement truck with a water hose mounted on the truck. 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. d. 20 feet. 0000001908 00000 n xref 0000004208 00000 n Ajay needs to use a dewatering pump to drain standing water on a construction site. A fault occurred, and with no grounding and no GFCI protection, the worker was electrocuted. Muscular contraction and nerve damage occur; death likely. 1.Is firmly connected [, Do not modify cords or use them incorrectly. 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. The victim was part of a crew that was constructing a concrete wall. 2.Loss of muscle control Select the correct answer and then click DONE. 0000089142 00000 n 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. 0000003640 00000 n Is not painted over Working with electricity can be dangerous. 10,000 milliamps (10 amps) Cardiac arrest and severe burns occur. 0000003413 00000 n d. 411, You are working with a 10-foot section of a conductive pipe near power lines. 1,[-c|"&u[Fu>wjte8j:xRk )"m_!6awT J,byp?fRBf?p|b3/Um\7"|+@5vvWAa5J^y*q,l b)Ftt4 :4,-J`! Electrical hazards like frayed cords, missing ground pins, improper wiring or the harm that these hazards pose. 1452 25 3.The length of time the body is in contact with electricity 2.The person's physical condition 0000000816 00000 n OSHA: Air Monitoring & Medical Surveillance, 5 ANO - RETOMANDO ARTIGO, SUBSTANTIVO E ADJE. Find the volume of the parallelepiped determined by the vertices (1,1,1),(4,7,2) . 0000000016 00000 n Quiz Question 10: Ground-fault circuit interrupters must be used for all of the following except? This is action is also known as creating or completing an electrical circuit. It's okay to use extension cords with worn insulation, as . %PDF-1.4 % It is important to note that NFPA 70E is a . The \rule{1cm}{1pt} artery carries deoxygenated blood from the heart to the lungs. a. Gaseous matter Is the west coast of Africa a plate boundary? 4. Should he use an extension cord to power it? Using modified cords or tools, e.g., removing ground prongs, face plates, insulation, etc. Suppose a volcano threw so much ash into the air that it blocked much of the sunlight. Explosion 0000001604 00000 n Frequently inspect electrical systems to insure that the path to ground is continuous. 3.Loose nuts Is split 3. 0000012944 00000 n g]+fn_m{mja_0Y w endstream endobj 189 0 obj <> endobj 190 0 obj <>stream b) By supplying GFCIs, or ground-fault circuit interrupters 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. Overhead and buried power lines at your site are especially hazardous because they carry extremely high voltage. 3 0 obj [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. 2 0 obj -Severe skin burns. 0000001861 00000 n 4.Damaged cover or insulation, When using electric-powered hand tools, do not overload: [, Use all equipment according to the manufacturer's instructions. Electrical Safety Quiz Electrical safety is an important topic that you and your workers need to know about. 2. The source of the shocks -- the saw -- was not replaced. Select the correct answer and then click DONE. While attempting to unplug the compressor from the extension cord, the employee was fatally shocked. endobj OSHA Pros, LLC is an authorized provider of 360 Training, an OSHA-Accepted Provider, offering training and certification courses for NFPA 70E-Standard, and d.Ground Fault Circuit Interrupter, : Another electrical hazard that can cause injury or death in the workplace is a ________ path to ground. c) Age Select the correct answer and then click DONE. 4.Combustible dust, Fundamentals of Engineering Economic Analysis, David Besanko, Mark Shanley, Scott Schaefer. 3.Something that causes current to flow through the . When does electricity become hazardous to humans? Draw a line from the item on the left that corresponds to the match on the right. 3.Needs to be reset Contact utilities for buried power line locations. Power was supplied through two extension cords from a nearby residence. a.Conductive objects Quiz Question 5: A/an ___________ is a unit of measurement for electrical resistance. 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. Select the choices that accurately define the common electrical term. Using tools and equipment that can contact power lines increases the risk. Visually inspect all electrical equipment before use. How will she choose the correct cord? 0000004884 00000 n -Grounding= a conductive connection to the earth which acts as a protective measure. Check your employee's electrical safety knowledge through an electrical safety quiz. ZR)!=w|; @uT C0? Effective means of controlling power line hazards include: [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. % Which of the following can be the result of electric shock? Lx*jWP# /c2)|]NXqAx>=~'[ 0000419562 00000 n endobj Ground all exposed metal parts of equipment. 0000000816 00000 n 1452 0 obj <> endobj 0000005632 00000 n View Best Practices with Power Lines Quiz OSHA 30.docx from OSHA 30 at Columbia Southern University. 0000013999 00000 n D. near other electrical equipment. Use tools and equipment according to the instructions included in their listing, labeling or certification. xb```VVF A10p,``Pp`hhdpn``r`L:[ I,aZ4Knj21 `ny; Ge7t@OrMx)"cx&e:[~J%aUJ\*t Both could have prevented the accident from occuring. 3.Tears B 208v. Additionally, the ground prong was missing and there was no GFCI protection. 0000001731 00000 n 0000014257 00000 n What is the primary purpose of properly grounding equipment? If the insulation on the tool's power cord is damaged and you touch this area while grounded, the electricity will ________. c. Match the color of the tool to the color of the extension cord. specifically addresses electrical protective devices. You discover the electrical cord on a drill has been damaged and some of the cord's insulation is missing. As she is adding in the chemicals, her hand touches the motor and it becomes energized. -Rubber. The length of time the body is in the circuit, in contact with electricity - Factor determining the severity of an electrical . A 20-year-old bricklayer standing on the work platform in contact with the main scaffold was electrocuted. 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. 0000001672 00000 n 3.Draped over equipment. hazard or that their employer is not following OSHA's rules. 0000004273 00000 n d.Water, Other electrical hazards in the workplace include: No GFCI's were used. . A. wrap tape around the damaged spot to prevent electrical shocks. Easy to identify Provides information about the hazards that electrical workers may experience as a part of their jobs. OSHA Safety and Health Topics Page. 0000427811 00000 n 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. Leaving or using electrical appliances near water - As electric current is transmitted faster in on wet surfaces, you stand a chance of getting an electric shock. 12 months C. 6 months D. Never Q23. When the victim reached down to connect the choker to the hoist cable, he suddenly collapsed. b+t6W' te+.W_{8u7Dt@1c. 0000421627 00000 n 0000002386 00000 n The normal wear and tear on extension and flexible cords at your site can loosen or expose wires, creating hazardous conditions. 0000021516 00000 n The insulation on the extension cord was cut through and exposed bare, energized conductors which made contact with the ladder. _5JKy. This caused him to fall from the ladder and land in a puddle of water, still holding the saw. Provide a safe path to earth ground for electricity. 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. [Flexible Cords and Power Tools]. 3. 3. Quiz Question 4: Which is a preventive measure to prevent hazards while working with power lines? c.40,000 volts Underground electrical hazards are: A. Apply a warning tag to any defective tool and do not use it until the problem has been corrected. The following are electrical hazards: Shock. You should? 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. 4. a. 0000007116 00000 n D. Communicate the hazard to the crew and subs, use signs and bar E. Both C and D Q22. Many workers are unaware of the potential electrical hazards present in their work environment, which makes them more vulnerable to the danger of electrocution. Remove cords from receptacles by pulling on the plugs, not the cords. Visually inspect all electrical equipment before use. Apparently, his hand contracted and he was "locked" to the saw. The factors that determine the severity of an electrical injury include: b.811 xYmo -ER/&@[D,_! Which of the following are conductor of electricity? You need to evaluate the situation you are in and assess your . Which of the following part of you body can burn if you come in contact with electricity? |tYny@YE>LkNj4-czZf"Usw>j\sv3fn},>},KeA s 30 days B. Select the correct answer and then click DONE. 0000007427 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. Explain the purpose and use of the MyPlate symbol. 1476 0 obj <>stream D 600v. 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). <> d.A power tool, A GFCI is designed to: Using multi-receptacle boxes designed to be. High humidity 0000006866 00000 n OSHA requires the testing of a volt meter after a voltage test on voltage above_____. c. Inductive objects 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. A Safety Electrical One Line Diagram should be used to _____ all sources of electrical energy. 0 Examples of Equipment That Can Contact Power Lines. 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. One hand drill was not grounded, and the other had no safety plate. 2.Complete 0000001896 00000 n Which of the following can be caused by exposure to an arc flash? d. heart attacks. Seven employees of a masonry company were erecting a brick wall from a tubular, welded-frame scaffold approximately 24 feet high. [. d.Constructive objects, Select all answers that apply to the following statement and then click DONE. 1. 2.Flooding 2. What is the minimum clearance distance you must maintain from the power lines? <>>> 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. 4. 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: [29 CFR 1926.416(a)(1)]. Using equipment outdoors that is labeled for use only in dry, indoor locations. uVNSF!UTRQ91uR,6@hCH}]GAlaPh)NeT$iQ89S9|?4wahU ltz9 PH[$I&VX9WG%K~1{u8M:D"+HLEy 3@NR^z!rB^?RyOj;'Lof. Quiz Question 6: Which of these is not a type of Ground Fault Circuit Adapter? 128 0 obj <> endobj xref 128 26 0000000016 00000 n *Effects are for voltages less than about 600 volts. 0000003603 00000 n Whether the hazard is posed by worn or damaged power tools or cords, improperly grounded tools or equipment, or the presence of standing water, it is the responsibility of the contractor to make sure the tools and equipment As he is working on the wiring, he receives an electrical shock that knocks him backward and causes him to fall off the ladder. Using cords or tools with worn insulation or exposed wires. c.Gasoline a.20,000 volts 2.Loose bolts 0000001646 00000 n 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. A worker was operating a " electric chisel when an electrical fault occurred in the casing of the tool, causing him to be fatally electrocuted. Isolating, Power lines may be located underground. B. 0000005042 00000 n Gloves used for electrical work must be inspected and tested prior to use, and be certified every: A. 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. Question 3: Employers are not required to enforce lock out/tag out practices in the workplaces. a.Your thumb. 1. Question 3: A/an ____________ is a unit of measurement for electrical resistance. 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. Select the correct answer and then click DONE. The ground wire was not attached on the male end of the cord's plug. As he removed the forms, he wrapped them with a length of cable called a choker, which was to be attached to a crane. 0000004965 00000 n Others, such as office workers and sales people, work with electricity indirectly and may also be exposed to electrical hazards. When inspecting extension cords, look for: gYpV:+ b.Rod -Glass. (See NFPA 70E-2021 Article 130 and OSHA subpart S part . 4. The floor is covered in water and she is barefoot. Co-workers provided CPR, but were unable to revive the victim. Select the correct answer and then click DONE. 0000005734 00000 n 2. b.Not wearing insulating shoes or boots when she was handling electrical equipment 3.Loss of eyesight 1. (D) None of the above. . C. near water. Reportedly, he was shocked throughout the morning, and he had replaced one of the extension cords in an effort to eliminate the shocks. 3 OSHA requires the testing of a volt meter after a voltage test on voltage above_____. Question 1: Which of the following is a danger of electricity? hb``b``=p0X8n0lY0L#rK[V26h* @0H!XDl+!&FfUfo`h6l True. Follow manufacturers' recommended testing procedure to insure GFCI is working correctly. Draw a line from the item on the left that corresponds to the match on the right. 0000420887 00000 n 2.Placed along a wall. d.The body of the power tool. b. Continually audit cords on-site. a.Yes, because the electrical shock caused the fall. c.Guaranteed Fault Circuit Interrupter Electricity becomes hazardous when it takes an unintended path to complete the ________. Post warning signs. 3. Attaching ungrounded, two-prong adapter plugs to three-prong cords and tools. 0000010155 00000 n 0000002733 00000 n Select the correct answer and then click DONE. [Power Tools]. Work performed on an electrical system within reaching distance of energized components is_____work. 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$]r**-I!o66PqK.z "*D Bob is asked to repair some overhead wiring, requiring the use a ladder. Question 2: It's okay to use extension cords with worn insulation, as long as you are careful about it. Ground metal parts of the following non-electrical equipment, as specified by the OSHA standard [, Frames and tracks of electrically operated. Death is probable. OSHA 30 Module 6: Personal Protective Equipme, OSHA 30 - Module 16: Recordkeeping & Reporting, OSHA 30 - Module 18: Safety and Health Progra, OSHA 30 - Module 11: Welding, Cutting and Bra, CRJ 200 Limitations (Official-ish) - MODDED (, SERE 100.2 Level A SERE (J3TA-US1329) (Civili, Fundamentals of Engineering Economic Analysis, David Besanko, Mark Shanley, Scott Schaefer, E. Russell Johnston, Ferdinand Beer, Phillip Cornwell. In which of the following workplace situations are you at risk for coming into contact with live electrical . <>>> Exercise their rights under the law without retaliation, including reporting an injury or raising health and safety concerns with their employer or OSHA. 0000005406 00000 n Quiz: Electrical Hazards. 3. 0000002150 00000 n 4.Broken. Burns. Electricity will form a "path" or "loop". BE SAFE! There were no eyewitnesses to the accident, but evidence suggests that while the victim was handling the damaged and energized extension cord, he provided a "path to ground" and was electrocuted. c.Touching the motor If electrical equipment is used in ways for which it is not designed, you can no longer depend on safety features built in by the manufacturer. 1. 0000003254 00000 n Select the correct answer and then click DONE. )KL3C?e%Y92$,]^)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'. Which of the following are insulators of electricity? 1.Cuts To avoid injury or death, you must understand and recognize hazards. Switch ( The first worker knocked the auger off the victim, but saw that the electric cord was wrapped around the victim's thigh. %PDF-1.5 d) All of the above. She finds several available in the shop. 0000003900 00000 n Protection is lost because it will not trip when the system's load has been exceeded. 0000004793 00000 n 0000001814 00000 n Quiz Question 7: Which is not an insulator? 0000068035 00000 n This may damage your equipment and cause employee injuries. Hand-operated metal shifting ropes or cables of electric elevators. a.A small current 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. a.related to muscle damage. (See NFPA 70E-2021 Article 130 and OSHA subpart S part 1910.333 (a) (1)- (2) and (c) for complete details.) 0000003771 00000 n Electrical safety requirements necessary for the practical safeguarding of employees in the workplace. He plans to use it over a period of at least six months. Potential hazards of electricity are preventable if you: Electricity must always travel in a(n) ________, ________ circuit. vpfuI)],s Before using the equipment, be sure that the ground wire: Any cords found not to be marked for hard or extra-hard use, or which have been modified, must be taken out of service immediately. Identify the oxidizing and reducing agents. Question 1: Which of these is a type of Ground Fault Circuit Adapter? Know glove capability VS hazard anticipated (exposure to chemicals, heat, or flames). Wearing a baseball cap Which of the following are caused by contact with electricity? 0000055319 00000 n 4.Must be replaced, Always use a GFCI: When the energized conductor made contact with the ladder, the path to ground included the worker's body, resulting in death. !DP#vr-\DM<6V-2'I5l6)Z@^m=}c3-aUOo6rr V-Y3d6HABmjD $TQCvK*eg&|Y596#H\ OSHA 29 CFR 1910, Subpart S . A. indoors. c.15 feet 0000009628 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?