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Match the length from job to outlet. 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. 1. Get All Answers to OSHA 30 Construction Final Exam. Study with Quizlet and memorize flashcards containing terms like OSHA's electrical standards are based on: A. ANSI standards B. (See NFPA 70E-2021 Article 130 and OSHA subpart S part 1910.333 (a) (1)- (2) and (c) for complete details.) When used on the moon? d.Constructive objects, Select all answers that apply to the following statement and then click DONE. 0000005406 00000 n
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Question 3: Employers are not required to enforce lock out/tag out practices in the workplaces. Wearing a baseball cap 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. Ajay needs to use a dewatering pump to drain standing water on a construction site. De-energizing De-energize and ground lines when working near them. 1. Select the correct answer and then click DONE. Besides personal bodily injury, what other electrical hazards can be found in the workplace? Which group would be more accurate when used in an accelerating spaceship? 0000004946 00000 n
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9JV%J899s{_G#R0="dL5,p: Select the correct answer and then click DONE. As the victim climbed down a makeshift ladder, he shifted the saw from his right hand to his left, and was shocked. Question 2: It's okay to use extension cords with worn insulation, as long as you are careful about it. Many workers are unaware of the potential electrical hazards present in their work environment, which makes them more vulnerable to the danger of electrocution. Short Confined spaces Machinery-related hazards (lockout/tagout, boiler safety, forklifts, etc.) OSHA 10 General Industry Test Answer Key WALKING. <>
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. -Wood. 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. <>
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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. Extension cords had poor splices, no grounds, and reversed polarity. How might this event affect the ability of animals to obtain energy to live? 0000002403 00000 n
2.Grounding What is the primary purpose of properly grounding equipment? uVNSF!UTRQ91uR,6@hCH}]GAlaPh)NeT$iQ89S9|?4wahU ltz9 PH[$I&VX9WG%K~1{u8M:D"+HLEy 3@NR^z!rB^?RyOj;'Lof. 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. Electricity to the auger was supplied by a series of 50-foot extension cords running to an adjacent property. 0000421627 00000 n
Which of the following factors determine how severe an electrical injury might be? vpfuI)],s 3.Loss of eyesight Select the choices that accurately define the common electrical term. Provides information about the hazards that electrical workers may experience as a part of their jobs. 2.Skin 4.Dirt build-up, Use only approved and authorized power tools in areas where the following hazards may be present: 3.When you are using portable power tools 4. c) Age 0000003254 00000 n
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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. b. Deductive objects The most dangerous place to use electrical equipment is? On the day of the incident, the victim plugged in a damaged extension cord and laid it out towards the bulkhead. Which of the following part of you body can burn if you come in contact with electricity? 0000002876 00000 n
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A 29-year-old worker was electrocuted when he pushed a crane cable into a 7,200-volt power line. You need to evaluate the situation you are in and assess your . . Select the correct answer and then click on DONE. b.30,000 volts Extension cords are used to: 0000024814 00000 n
Latoya is using a mixing motor to mix pool chemicals in a plastic drum. -Grounding= a conductive connection to the earth which acts as a protective measure. OSHA Pros, LLC is an authorized provider of 360 Training, an OSHA-Accepted Provider, offering training and certification courses for NFPA 70E-Standard, and 0000001731 00000 n
[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. 0000021516 00000 n
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Question 2: Which of the following are ways . 3.Clear Of the following choices, which are frequent electrical hazards Freeze Question 1: Which of the following is a danger of electricity? He plans to use it over a period of at least six months. Best practices with power lines include: Electrical Hazards Electrical hazards can be found in nearly every roofing work site. Determine duration, frequency, degree of exposure to hazards and physical stress. OSHA CONSTRUCTION FINAL EXAM Question and Answer Part 10. ly/homeo3b700 Which of the following is a resource within the. Metal partitions, grill work, and similar metal enclosures around equipment of over 1kV between conductors. a) Ensure overhead power line safety Electricity becomes hazardous when it takes an unintended path to complete the ________. When the victim reached down to connect the choker to the hoist cable, he suddenly collapsed. 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. Yes, because he will be using electricity near water. 4.Must be replaced, Always use a GFCI: d. 20 feet. No GFCI's were used. Gloves used for electrical work must be inspected and tested prior to use, and be certified every: A. 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. The \rule{1cm}{1pt} artery carries deoxygenated blood from the heart to the lungs. Potential hazards of electricity are preventable if you: Electricity must always travel in a(n) ________, ________ circuit. 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. <>>>
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2.Complete The victim was part of a crew that was constructing a concrete wall. D. Communicate the hazard to the crew and subs, use signs and bar E. Both C and D Q22. What is the minimum clearance distance you must maintain from the power lines? The victim collapsed into the lake and sank 4-1/2 feet to the bottom. b.Yes, because Bob was on . Cardiac arrest or death - A result of electrical shock. 0000017336 00000 n
3.Vapor HWMo#7v#h>6,Z4- a.Your thumb. 4,600. Which of these can be used as insulating live-line tools for electrical protection. Draw a line from the item on the left that corresponds to the match on the right. 0000001495 00000 n
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3.Loose nuts Question 2: Which of the following is NOT a category of electrical burns? It is important to note that NFPA 70E is a . Select the correct answer and then click DONE. Water Noise, : ________ or heavy perspiration can cause electricity to take an unintended path. 0000000816 00000 n
If the insulation on the tool's power cord is damaged and you touch this area while grounded, the electricity will ________. a. Apply a warning tag to any defective tool and do not use it until the problem has been corrected. Fire 0000011060 00000 n
What is the output of the program in Exercise 17, if first = 26 and second = 8? 4.No, because he does not need to use an extension cord. d.Adapter, What is a GFCI? 0000055319 00000 n
Outlets Electrical hazards like frayed cords, missing ground pins, improper wiring or the harm that these hazards pose. -Conductor= permits the free flow of electricity. Take any defective equipment out of service. 4.Damaged cover or insulation, When using electric-powered hand tools, do not overload: The auger has a one-quarter horsepower motor encased in a metal housing with two handles. Two of the extension cords had no ground prongs, and some of them were repaired with electrical tape. If the electrical conductors become exposed, there is a danger of shocks, burns, or fire. b.Shut off power within five minutes of the imbalance Which of the following are insulators of electricity? Even when the power system is properly grounded, electrical equipment can instantly change from safe to hazardous because of extreme conditions and rough treatment. 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. using a 30-amp breaker in a system with 15- or 20-amp receptacles. endobj
The individual's perspiration-soaked clothing/body contacted bare exposed conductors on one of the cords, causing an electrocution. C 277v. b.burns. a.Electricity Attaching ungrounded, two-prong adapter plugs to three-prong cords and tools. (a) Describe the reaction between the hydride ion and water in terms of a Bronsted acid-base reaction. 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. Explain the purpose and use of the MyPlate symbol. 4.Broken. Select the correct answer and then click DONE. A) Identify; Castigate; C) Evaluate; D) Modify; 3. 0000010603 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. Most of the hydrides of Group 1A and Group 2A metals are ionic. Quiz: Electrical Hazards. 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. c.Guaranteed Fault Circuit Interrupter Test your knowledge with our electrical safety quiz below. This is action is also known as creating or completing an electrical circuit. View Best Practices with Power Lines Quiz OSHA 30.docx from OSHA 30 at Columbia Southern University. What factors determine the severity of Dirk's injuries? Intentionally creating a low-resistance path that connects to the earth. Frequently inspect electrical systems to insure that the path to ground is continuous. 4 0 obj
You can classify scales for weighing objects as those that use springs and those that use standard masses to balance unknown masses. d) All of the above. 4. Which of the following can be the result of electric shock? 0000056642 00000 n
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OSHA 29 CFR 1910, Subpart S . 4.Organs, The presence of ________ can turn you, your equipment, or insulators like wood into conductors. Question 4: Which of the following is a type of burn caused by electrical hazards? [, Do not modify cords or use them incorrectly. specifically addresses electrical protective devices. q>NmnLNmb$"Iyx1bD9.~Ll. 0000005520 00000 n
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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. 0000002385 00000 n
a.Standing in water 1.Using a fiberglass ladder when the possibility exists for contact with electricity. In addition to contact with power lines, the top electrical hazards include: 0000003715 00000 n
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d.50,000 volts. Ground all power supply systems, electrical circuits, and electrical equipment. Provide a safe path to earth ground for electricity. c. Match the color of the tool to the color of the extension cord. -Damage to internal organs. Use only equipment that is approved to meet OSHA standards. d.The body of the power tool. Dirk, a 28-year-old mechanic, is performing maintenance on a piece of equipment when he is shocked. 2.Using extension cords or electrical tools properly. 0000013999 00000 n
Protection is lost because it will not trip when the system's load has been exceeded. endobj
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4. Quiz Question 5: A/an ___________ is a unit of measurement for electrical resistance. a. Gaseous matter Know glove capability VS hazard anticipated (exposure to chemicals, heat, or flames). b) Staples (b) The same reaction can also be classified as a redox reaction. 1. Exercise their rights under the law without retaliation, including reporting an injury or raising health and safety concerns with their employer or OSHA. 0000108653 00000 n
3. 2.Flooding 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. a) Door or window edges ( a.Two-prong plug c.falls. 2.Placed along a wall. H. Ground metal parts of the following non-electrical equipment, as specified by the OSHA standard [, Frames and tracks of electrically operated. Muscular contraction and nerve damage occur; death likely. Visually inspect all electrical equipment before use. It's okay to use extension cords with worn insulation, as . -Current= the movement of electrical charge. Examples of Equipment That Can Contact Power Lines. Select the correct answer and then click DONE. d. 411, You are working with a 10-foot section of a conductive pipe near power lines. b. Does the fall qualify as an electrical accident? OSHA: Air Monitoring & Medical Surveillance, 5 ANO - RETOMANDO ARTIGO, SUBSTANTIVO E ADJE. The presence of ______ can turn you, your equipment, or insulators like wood, into conductors. B 208v. Electrical current travels through insulated ________. (B) Switch sticks. Seven employees of a masonry company were erecting a brick wall from a tubular, welded-frame scaffold approximately 24 feet high. -Rubber. 1.Missing or broken path to ground. <>
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Question 4: When a worker receives an electric shock, first aid must start within ___________ minutes. Study with Quizlet and memorize flashcards containing terms like Among all of the safety measures that can and should be used to prevent electrical shock, which one is the most essential?, 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., When does electricity become hazardous to humans? 4.Running through doorways. xb```VVF A10p,``Pp`hhdpn``r`L:[
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3.No, because he will not be touching any grounded material when using the tool. 15,000 milliamps (15 amps) Lowest overcurrent at which a typical fuse or circuit breaker opens a circuit! Visually inspect all electrical equipment before use. a.Shut off power within a fraction of a second c. No, because the electricity is needed on a long-term basis. 2. 3.ack of ground fault protection. <<7628BB2D46738F42B2FC6393656F4718>]>>
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Check your employee's electrical safety knowledge through an electrical safety quiz. OSHA Safety and Health Topics Page. Overview. The accident site was wet; also, humidity was high and the victim was sweating. Question 1: Which of these is a type of Ground Fault Circuit Adapter? Is the west coast of Africa a plate boundary? 2. a.Ground Fault Circuit Insulator [. OSHA 10 General Industry Topic Exams Answer Key TOPIC EXAM 1: INTRO TO OSHA 1. endobj
2.Loose screws This standard also includes safe work practices for employees performing other work activities that can expose them to electrical hazards as well as safe work practices for the following: (1) Installation of conductors and equipment that connect to the supply of electricity (2) Installations used by the electric utility, such as office . a.20,000 volts 3.Maintaining a safe distance of at least 10 feet from all overhead power lines. Electrical Safety Quiz Electrical safety is an important topic that you and your workers need to know about. Find the volume of the parallelepiped determined by the vertices (1,1,1),(4,7,2) . He may have dropped the extension cord at the site and not heard the connector break. The contact lasts for 5 seconds before someone is able to shut off the power. 2.Grease 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. D. Have an ANSI sticker and an expiration date. Using tools and equipment that can contact power lines increases the risk. a.Yes, as it is a mobile engine testing station. a.Extension cords 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. Select the correct answer and then click DONE. d/E
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A worker was removing a metal antenna when it made electrical contact with a 7200-volt power transmission line. @*@;z}IAH@3MsgU1Dnf@agLahpCn@&b|-^;b0k*!3VYy,jy%( Z%|\Jg"dRp-Wbz3QJS%k9p_WtZ Electricity for power tools was supplied from an exterior 120-volt, grounded AC receptacle located at the back of the residence. 3.Cramp When he grasped the handle of the bucket to pull it down, the crane cable came into contact with the overhead line. 0000414648 00000 n
0000002479 00000 n
b.811 d.Water, Other electrical hazards in the workplace include: Is split 3.Draped over equipment. BE SAFE! As she is adding in the chemicals, her hand touches the motor and it becomes energized. Remove cords from receptacles by pulling on the plugs, not the cords. She has an older drill with a steel housing and a 3-prong plug. -Glass. 4. a. Both could have prevented the accident from occuring. 0000004273 00000 n
2.Loss of muscle control a.A small current The small electrical current enters his body through his left leg. Using multi-receptacle boxes designed to be. Underground electrical hazards are: A. 0000009628 00000 n
Power was supplied through two extension cords from a nearby residence. Easy to identify Explosion. Potential hazards of electricity are preventable if you do which of the following listed below? d. Power outlets, ________ are anything that can transmit electrical current. 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. Carly needs to use an extension cord with her corded nail gun. (E) a, b, and c. 2. 2. b+t6W' te+.W_{8u7Dt@1c. 0000022637 00000 n
An employee was texturing a wall using an air compressor. Electric current cannot exist without an unbroken path to and from the conductor. 0000005734 00000 n
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Using the wrong light bulb wattage; Overloading power strips and outlets; Unprotected electrical outlets; Poor wiring; Defective electrical wires b.Yes, as it would be too expensive to install more permanent wiring and receptacles. Select the correct answer and then click DONE. Switch -Falls. What three things must be present for a current to flow through a conductor. . 4.Good condition of moveable parts, Items that could encourage overheating and cause tools to malfunction or start a fire include: The insulation on the extension cord was cut through and exposed bare, energized conductors which made contact with the ladder. 0000004884 00000 n
[Power Tools]. The factors that determine the severity of an electrical injury include: 4. d. No, because an extension cord would not provide enough power. Others, such as office workers and sales people, work with electricity indirectly and may also be exposed to electrical hazards. 1. True. c.Touching the motor 0000110659 00000 n
If a defective power tool gives you an electric shock, how might your muscles react? c. Inductive objects 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. 0000001646 00000 n
The following references aid in recognizing hazards associated with electrical work. he most common shock-related injuries are: The first worker knocked the auger off the victim, but saw that the electric cord was wrapped around the victim's thigh. 1.Cuts 1.Is firmly connected What type of burns are the result of current flowing through and exiting the body? 0000005042 00000 n
1,[-c|"&u[Fu>wjte8j:xRk )"m_!6awT J,byp?fRBf?p|b3/Um\7"|+@5vvWAa5J^y*q,l b)Ftt4 :4,-J`! d.Metal, Over half of all deaths caused by electricity result from contact with ________. 0000004686 00000 n
Electrical hazards are life threatening incidents that could happen due to electricity. 0000420277 00000 n
[29 CFR 1926.416(a)(1)]. Looking for NFPA 70E Certification? One worker, holding the deadman's switch, received a shock from a ground fault in the auger and was knocked back from the machine. endobj
lex has set up a mobile engine testing station in the maintenance area. A 20-year-old bricklayer standing on the work platform in contact with the main scaffold was electrocuted. 0000005716 00000 n
c) Establish and enact an assured equipment grounding conductor program (AEGCP) -Severe skin burns. 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. (3,2,1), (5,4,3). Contact utilities for buried power line locations. 3. c.Gasoline c.Power lines Death is probable. OSHA 29 CFR 1910, Subpart P . 0000018681 00000 n
Electricity to operate portable power tools was supplied by a temporary service pole 50 feet away. 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. Best Practices with Power Lines 1. A measure of the energy of motion of the particles in a substance is its _____. Using equipment outdoors that is labeled for use only in dry, indoor locations. 0000004274 00000 n
Select the correct answer and then click DONE. When current travels through your body - Definition of electric shock. stream
Which of the following injuries can occur when muscles flex or twitch from an electrical shock?