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. The following references aid in recognizing hazards associated with electrical work. She finds several available in the shop. Two of the extension cords had no ground prongs, and some of them were repaired with electrical tape. OSHA: Air Monitoring & Medical Surveillance, 5 ANO - RETOMANDO ARTIGO, SUBSTANTIVO E ADJE. 0000010603 00000 n
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*Effects are for voltages less than about 600 volts. Select the correct answer and then click DONE. d/E
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/\"BQ>Rkl6xZWtAgfs Electrical safety requirements necessary for the practical safeguarding of employees in the workplace. 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. qnde>9!.,T2 :hw5 #OaPxkx=y7]J-yv*'H$jmVCq$ sx:R2$9SY+D!!LJ:n+.\#Hu~2VI O? (See NFPA 70E-2021 Article 130 and OSHA subpart S part 1910.333 (a) (1)- (2) and (c) for complete details.) 0000000816 00000 n
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. Is the west coast of Africa a plate boundary? Question 1: Each year, approximately __________ workers suffer from electricity related injuries. What factors determine the severity of Dirk's injuries? One worker, holding the deadman's switch, received a shock from a ground fault in the auger and was knocked back from the machine. [29 CFR 1926.416(a)(1)]. 4.Good condition of moveable parts, Items that could encourage overheating and cause tools to malfunction or start a fire include: g]+fn_m{mja_0Y w
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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. hb``b``=p0X8n0lY0L#rK[V26h* @0H!XDl+!&FfUfo`h6l Using equipment outdoors that is labeled for use only in dry, indoor locations. 0000003413 00000 n
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OSHA 10 General Industry Test Answer Key WALKING. The \rule{1cm}{1pt} artery carries deoxygenated blood from the heart to the lungs. You discover the electrical cord on a drill has been damaged and some of the cord's insulation is missing. Should Ajay use a GFCI? Suppose a volcano threw so much ash into the air that it blocked much of the sunlight. d.Ground Fault Circuit Interrupter, : Another electrical hazard that can cause injury or death in the workplace is a ________ path to ground. In 2017, there were over ______________ electrical related violations cited by OSHA in the workplace. 0000004208 00000 n
Identify the oxidizing and reducing agents. The presence of ______ can turn you, your equipment, or insulators like wood, into conductors. Ground all power supply systems, electrical circuits, and electrical equipment. A. indoors. 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. %PDF-1.5
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Get resources on specific hazards and their control, including identification, risk assessment and inspections, to keep your workplace healthy and safe. Becoming part of the circuit exposes you to ________, the most dangerous electrical hazard. Reportedly, he was shocked throughout the morning, and he had replaced one of the extension cords in an effort to eliminate the shocks. 0000013999 00000 n
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. 0000001731 00000 n
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c) Establish and enact an assured equipment grounding conductor program (AEGCP) 3.Maintaining a safe distance of at least 10 feet from all overhead power lines. (D) None of the above. Overview. Using multi-receptacle boxes designed to be. In addition to contact with power lines, the top electrical hazards include: Provides information about the hazards that electrical workers may experience as a part of their jobs. Burns. 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. %PDF-1.4
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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. HWMo#7v#h>6,Z4- uVNSF!UTRQ91uR,6@hCH}]GAlaPh)NeT$iQ89S9|?4wahU ltz9 PH[$I&VX9WG%K~1{u8M:D"+HLEy 3@NR^z!rB^?RyOj;'Lof. 0000007464 00000 n
4.Organs, The presence of ________ can turn you, your equipment, or insulators like wood into conductors. Besides personal bodily injury, what other electrical hazards can be found in the workplace? 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 ________ keeps the electricity on its intended path through the conductor. The floor is covered in water and she is barefoot. 3.No, because he will not be touching any grounded material when using the tool. xref
b.Match the thickness of the extension cord to the thickness of the nail gun's power cord. A 120v. b. Deductive objects 0000000816 00000 n
Use only cords, connection devices, and fittings that are equipped with strain relief. Which of the following can be the result of electric shock? The victim was part of a crew that was constructing a concrete wall. b.Shut off power within five minutes of the imbalance 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). 0000108653 00000 n
3.The length of time the body is in contact with electricity 0000017336 00000 n
Select the choices that accurately define the common electrical term. When the energized conductor made contact with the ladder, the path to ground included the worker's body, resulting in death. 0000007741 00000 n
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d. Power outlets, ________ are anything that can transmit electrical current. Muscular contraction and nerve damage occur; death likely. Death. Others, such as office workers and sales people, work with electricity indirectly and may also be exposed to electrical hazards. [, Do not modify cords or use them incorrectly. The accident site was wet; also, humidity was high and the victim was sweating. If you are touching any grounded material while using a power tool Frequently inspect electrical systems to insure that the path to ground is continuous. Should he use an extension cord to power it? 3 0 obj
The most dangerous place to use electrical equipment is? Ground metal parts of the following non-electrical equipment, as specified by the OSHA standard [, Frames and tracks of electrically operated. c.911 D. Communicate the hazard to the crew and subs, use signs and bar E. Both C and D Q22. Select the correct answer and then click DONE. 4. c.The outlet. 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. Post warning signs. You need to evaluate the situation you are in and assess your . Stay at least 10 feet away from overhead power lines. Quiz Question 10: Ground-fault circuit interrupters must be used for all of the following except? Does the fall qualify as an electrical accident? Using the wrong light bulb wattage; Overloading power strips and outlets; Unprotected electrical outlets; Poor wiring; Defective electrical wires 5.Twitch, Electrical shock may result in: He plans to use it over a period of at least six months. c.falls. 5>vB35Plm$\4{U[lU`t~.vJGmFO^@+
cGPzNY*oS(m%q{Agp Before using the equipment, be sure that the ground wire: a.Electricity 0000419562 00000 n
I;C`_;LV'd,|#H--e`( ')'RpAgA7O`?%68SB Engineers, electricians, and other professionals work with electricity directly, including working on overhead lines, cable harnesses, and circuit assemblies. %
5. Call ________ prior to digging to be connected with your local One Call Center to have all underground lines located by the utility company. 1. The victim signaled the operator of the crane to extend the boom and lower the hoist cable. 3.ack of ground fault protection. 1) The _____ created the Occupational Safety and Health Administration (OSHA) to set and enforce protective workplace safety and health standards. c.A measurement of electricity Select the correct answer and then click DONE. The NEC C. Suggestions Power was supplied through two extension cords from a nearby residence. 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. d.Constructive objects, Select all answers that apply to the following statement and then click DONE. c.Power lines stream
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d.The body of the power tool. 0000068035 00000 n
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d.Adapter, What is a GFCI? 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. Which of the following can be caused by exposure to an arc flash? 0000420887 00000 n
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The length of time the body is in the circuit, in contact with electricity - Factor determining the severity of an electrical . View Best Practices with Power Lines Quiz OSHA 30.docx from OSHA 30 at Columbia Southern University. b.30,000 volts c.Touching the motor Question 2: Which of the following are ways . 0000015549 00000 n
Hazards are created when cords, cord connectors, receptacles, and cord- and plug connected equipment are improperly used and maintained. 3.Loose nuts -Rubber. Using modified cords or tools, e.g., removing ground prongs, face plates, insulation, etc. The first worker knocked the auger off the victim, but saw that the electric cord was wrapped around the victim's thigh. 1 0 obj
1.Pain Electricity will form a "path" or "loop". H. lex has set up a mobile engine testing station in the maintenance area. The factors that determine the severity of an electrical injury include: 2. The victim collapsed into the lake and sank 4-1/2 feet to the bottom. Wearing a baseball cap Bob is asked to repair some overhead wiring, requiring the use a ladder. 3.Body tissue 0000009628 00000 n
4.Broken. Both the operator and the victim failed to notice that the boom had contacted a 2,400-volt overhead power line. Safe operation of hand and portable powered tools and other hand-held equipment. 1. The scaffold had been constructed only 21 horizontal inches across from a 7,620-volt power line. Select the correct answer and then click DONE. -Glass. You can classify scales for weighing objects as those that use springs and those that use standard masses to balance unknown masses. To be safe, you must think about your job and plan for hazards. Test your knowledge with our electrical safety quiz below. 4.Flex OSHA CONSTRUCTION FINAL EXAM Question and Answer Part 10. ly/homeo3b700 Which of the following is a resource within the. b.burns. d. 20 feet. a. 2.Loose bolts b.Electrical tools If the electrical conductors become exposed, there is a danger of shocks, burns, or fire. Select the correct answer and then click DONE. -If current passes through the body near the heart or brain. Get All Answers to OSHA 30 Construction Final Exam. d.Water, Other electrical hazards in the workplace include: Select the correct answer and then click DONE. 4.Circuit breakers, When inspecting power tools, look for: Ajay needs to use a dewatering pump to drain standing water on a construction site. 1476 0 obj
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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.
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