1,[-c|"&u[Fu>wjte8j:xRk )"m_!6awT J,byp?fRBf?p|b3/Um\7"|+@5vvWAa5J^y*q,l b)Ftt4 :4,-J`! 3.The length of time the body is in contact with electricity Which of the following part of you body can burn if you come in contact with electricity? If a worker has been retaliated against for using their rights, they 0000057373 00000 n The workers had removed their shirts and were sweating. Safe operation of hand and portable powered tools and other hand-held equipment. 0000028595 00000 n Quiz Question 1: Which of the following is not a category of electrical burns? A Safety Electrical One Line Diagram should be used to _____ all sources of electrical energy. Select the choices that accurately define the common electrical term. Study with Quizlet and memorize flashcards containing terms like Bob is asked to repair some overhead wiring, requiring the use a ladder. Is not painted over 0000003254 00000 n <> He may have dropped the extension cord at the site and not heard the connector break. Question 2: It's okay to use extension cords with worn insulation, as long as you are careful about it. 0000007694 00000 n Question 2: Which of the following are ways employers must protect their employees on the workplace? d. Power outlets, ________ are anything that can transmit electrical current. c.Gasoline 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. Even when the power system is properly grounded, electrical equipment can instantly change from safe to hazardous because of extreme conditions and rough treatment. 4.Circuit breakers, When inspecting power tools, look for: H. 0000001861 00000 n 4 0 obj View Best Practices with Power Lines Quiz OSHA 30.docx from OSHA 30 at Columbia Southern University. Remove cords from receptacles by pulling on the plugs, not the cords. 0000005734 00000 n [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. Which of the following are caused by contact with electricity? 0000004884 00000 n 0000003603 00000 n Electrical Contractors Industry. specifically addresses electrical protective devices. 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. OSHA 10 General Industry Topic Exams Answer Key TOPIC EXAM 1: INTRO TO OSHA 1. Follow manufacturers' recommended testing procedure to insure GFCI is working correctly. 0000012944 00000 n Protection is lost because it will not trip when the system's load has been exceeded. OSHA 29 CFR 1910, Subpart S . 1.Using a fiberglass ladder when the possibility exists for contact with electricity. Dirk, a 28-year-old mechanic, is performing maintenance on a piece of equipment when he is shocked. 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. Electricity for power tools was supplied from an exterior 120-volt, grounded AC receptacle located at the back of the residence. Which of the following are insulators of electricity? 2. You discover the electrical cord on a drill has been damaged and some of the cord's insulation is missing. Study with Quizlet and memorize flashcards containing terms like OSHA's electrical standards are based on: A. ANSI standards B. B. outdoors. A) Identify; Castigate; C) Evaluate; D) Modify; 3. Used across walkways. 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. 2. 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. 0000422244 00000 n When does electricity become hazardous to humans? a.311 The accident site was wet; also, humidity was high and the victim was sweating. In addition to contact with power lines, the top electrical hazards include: As she is adding in the chemicals, her hand touches the motor and it becomes energized. D. Communicate the hazard to the crew and subs, use signs and bar E. Both C and D Q22. 2.Skin 4,600. a.Conductive objects Select the correct answer and then click DONE. What factors determine the severity of Dirk's injuries? The victim collapsed into the lake and sank 4-1/2 feet to the bottom. 0000013716 00000 n OSHA: Air Monitoring & Medical Surveillance, 5 ANO - RETOMANDO ARTIGO, SUBSTANTIVO E ADJE. xYmo -ER/&@[D,_! endobj 4.No, because he does not need to use an extension cord. 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 [29 CFR 1926.416(a)(1)]. b.Rod Yes, because he will be using electricity near water. 2.Something to transport the electrical current -- A conductor. 0000108653 00000 n 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. endobj ZR)!=w|; @uT C0? 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). When the victim reached down to connect the choker to the hoist cable, he suddenly collapsed. 12 months C. 6 months D. Never Q23. Of the following choices, which are frequent electrical hazards Electricity to the auger was supplied by a series of 50-foot extension cords running to an adjacent property. [, 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 following are electrical hazards: Shock. The length of time the body is in the circuit, in contact with electricity - Factor determining the severity of an electrical . 4.Running through doorways. Exercise their rights under the law without retaliation, including reporting an injury or raising health and safety concerns with their employer or OSHA. 1452 0 obj <> endobj d. heart attacks. 1 0 obj c.The outlet. c.Absorb any water around the area 2 0 obj 0000006152 00000 n c.Touching the motor a.Extension cords 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. 0000421627 00000 n A 120v. Know glove capability VS hazard anticipated (exposure to chemicals, heat, or flames). Carly needs to use an extension cord with her corded nail gun. 3.Loss of eyesight 0000002122 00000 n When the energized conductor made contact with the ladder, the path to ground included the worker's body, resulting in death. -Falls. 3.Body tissue 0000007116 00000 n 30 days B. b) By supplying GFCIs, or ground-fault circuit interrupters 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 What is the minimum clearance distance you must maintain from the power lines? _5JKy. What do tripped circuit breakers and blown fuses indicate? 0000089142 00000 n 5. q>NmnLNmb$"Iyx1bD9.~Ll. )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'. d.Constructive objects, Select all answers that apply to the following statement and then click DONE. endobj 0000110659 00000 n 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. Quiz Question 6: Which of these is not a type of Ground Fault Circuit Adapter? OSHA CONSTRUCTION FINAL EXAM Question and Answer Part 10. ly/homeo3b700 Which of the following is a resource within the. Quiz Question 3: Power cords can be damaged by which of the following? Using a dry wood ladder when the possibility exists for contact with electricity. Should he use an extension cord to power it? 0000003715 00000 n 4 0 obj b.Electrical tools 1.Missing Take any defective equipment out of service. A) 120v . Question 2: Which of the following is NOT a category of electrical burns? This is action is also known as creating or completing an electrical circuit. You can classify scales for weighing objects as those that use springs and those that use standard masses to balance unknown masses. Be sure equipment that has been shop fabricated or altered is in compliance. 1.Clench Question 1: Which of the following is a danger of electricity? Does the fall qualify as an electrical accident? Which group would be more accurate when used in an accelerating spaceship? 4.Combustible dust, Fundamentals of Engineering Economic Analysis, David Besanko, Mark Shanley, Scott Schaefer. A measure of the energy of motion of the particles in a substance is its _____. 0000010603 00000 n Power was supplied through two extension cords from a nearby residence. A fault occurred, and with no grounding and no GFCI protection, the worker was electrocuted. 3. . Quiz Question 9: Conductor insulation must be approved for the ___________ of use? 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. Select the correct answer and then click DONE. b.A fast-acting switch monitoring current flow 0000012360 00000 n While attempting to unplug the compressor from the extension cord, the employee was fatally shocked. 1) The _____ created the Occupational Safety and Health Administration (OSHA) to set and enforce protective workplace safety and health standards. Is split Supply power for tools or equipment on a long-term basis. High humidity 1452 25 One handle has a deadman's switch. % Draw a line from the item on the left that corresponds to the match on the right. 10,000 milliamps (10 amps) Cardiac arrest and severe burns occur. When inspecting extension cords, look for: 2 0 obj _.9u'2G_0 Ue]e"x5|Y A 20-year-old bricklayer standing on the work platform in contact with the main scaffold was electrocuted. 0000004921 00000 n Select the correct answer and then click on DONE. a.Electricity 0000000816 00000 n [Flexible Cords and Power Tools]. 0000024814 00000 n 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. 3.Needs to be reset 3.Something that causes current to flow through the . 3.Tears Question 4: Which of the following is a type of burn caused by electrical hazards? According to NFPA 70E, job briefings must be held for those employees that will be working on or near live parts operating at ______ or more. 0000001908 00000 n Looking for NFPA 70E Certification? 4.Broken. 0000008392 00000 n 0000001116 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? Metal partitions, grill work, and similar metal enclosures around equipment of over 1kV between conductors. Explain the process that prevents the poles from steadily cooling off and the tropics from heating up over time. 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. Underground electrical hazards are: A. C 277v. One hand drill was not grounded, and the other had no safety plate. The auger then fell across the other worker, the 24-year-old victim. 0000005042 00000 n c.falls. gYpV:+ 0000005520 00000 n 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. uVNSF!UTRQ91uR,6@hCH}]GAlaPh)NeT$iQ89S9|?4wahU ltz9 PH[$I&VX9WG%K~1{u8M:D"+HLEy 3@NR^z!rB^?RyOj;'Lof. 0000004686 00000 n Does the fall qualify as an electrical accident? b.Not wearing insulating shoes or boots when she was handling electrical equipment Regarding hand protection employers should: A. Short Confined spaces Machinery-related hazards (lockout/tagout, boiler safety, forklifts, etc.) A doubly ionized lithium atom (Li2+,Z=3)\left(\mathrm{Li}^{2+}, \mathrm{Z}=3\right)(Li2+,Z=3) is in n=4n=4n=4 Bohr orbit. 0000004208 00000 n Death is probable. d. No, because an extension cord would not provide enough power. 0000017163 00000 n Test your knowledge with our electrical safety quiz below. Stay at least 10 feet away from overhead power lines. It's okay to use extension cords with worn insulation, as . Death. 1.Extension cords 0000010155 00000 n -Damage to internal organs. Use only extension cords that are marked with a designation code for hard or extra-hard usage. Additionally, the ground prongs were missing from the two cords. 0000005716 00000 n 0000427811 00000 n (3,2,1), (5,4,3). When current travels through your body - Definition of electric shock, Choose the primary cause of an electric shock, Electric shock is caused when current travels through the body, the exits the ground. Electrical hazards are life threatening incidents that could happen due to electricity. 0000009628 00000 n 2.Using extension cords or electrical tools properly. 3.Maintaining a safe distance of at least 10 feet from all overhead power lines. d. Match the outlet prongs to the extension cord. :$#k9BPnZ{Qqe/reKy,'ZlB# 0000001646 00000 n He yelled for his co-workers to disconnect the power, which they did. The victim was part of a crew that was constructing a concrete wall. Short In Power Saw/Ungrounded Temporary Power Supply: On July 10, 1986, a 22-year-old carpenter was working at the construction site of large apartment complex, using a portable electric saw to construct the wooden framework of a laundry building. 0000007464 00000 n d.Metal, Over half of all deaths caused by electricity result from contact with ________. -Wood. vpfuI)],s Electrical Safety Quiz Electrical safety is an important topic that you and your workers need to know about. 3.Clear (See NFPA 70E-2021 Article 130 and OSHA subpart S part . Using equipment outdoors that is labeled for use only in dry, indoor locations. 3.Cramp Post warning signs. 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. As he is working on the wiring, he receives an electrical shock that knocks him backward and causes him to fall off the ladder. [Power Tools]. 0000002150 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. 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. 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. Select the correct answer and then click DONE. 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+ Explosion If the insulation on the tool's power cord is damaged and you touch this area while grounded, the electricity will ________. 0000001672 00000 n 2. 2. A co-worker disconnected the power cord to the saw, too late to save the victim. The individual's perspiration-soaked clothing/body contacted bare exposed conductors on one of the cords, causing an electrocution. Which of these can be used as insulating live-line tools for electrical protection. b. Deductive objects [, Use all equipment according to the manufacturer's instructions. True. -If current passes through the body near the heart or brain. OSHA requires the testing of a volt meter after a voltage test on voltage above_____. 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. What was Latoya's first mistake? Overview. 0000004273 00000 n What is the output of the program in Exercise 17, if first = 26 and second = 8? 0000007427 00000 n 1. 1.Is faulty The following references aid in recognizing hazards associated with electrical work. De-energizing (a) Describe the reaction between the hydride ion and water in terms of a Bronsted acid-base reaction.
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which of the following are electrical hazards osha quizlet