which of the following are electrical hazards osha quizlet

2.Grounding a.Conductive objects [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. 2.Using extension cords or electrical tools properly. Electricity to the auger was supplied by a series of 50-foot extension cords running to an adjacent property. 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. hb``b``=p0X8n0lY0L#rK[V26h* @0H!XDl+!&FfUfo`h6l Overview. 4.Running through doorways. This is action is also known as creating or completing an electrical circuit. 0000017336 00000 n 0000004793 00000 n When an electric shock occurs, your muscles may: 0000003771 00000 n True. 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 29 CFR 1910.147 . xYmo -ER/&@[D,_! Quiz Question 10: Ground-fault circuit interrupters must be used for all of the following except? s\A0W+ The plug of the compressor and an extension cord had been modified to fit a wall outlet for a common household clothes dryer (220 V). To be safe, you must think about your job and plan for hazards. 1.Damaged cover or insulation 3 0 obj 1.Extension cords 3.Tears How will she choose the correct cord? Ground all exposed metal parts of equipment. <> 0000024814 00000 n 0000005406 00000 n Match the length from job to outlet. a.Supply power for tools or equipment on a temporary or short-term basis. 0000001604 00000 n [. *Effects are for voltages less than about 600 volts. 1.When you are using electricity near water uVNSF!UTRQ91uR,6@hCH}]GAlaPh)NeT$iQ89S9|?4wahU ltz9 PH[$I&VX9WG%K~1{u8M:D"+HLEy 3@NR^z!rB^?RyOj;'Lof. Yes, because he will be using electricity near water. b.Ground Fault Critical Interrupter Use the terms (freezing, gas, liquid, physical changes, solubility, solution, temperature, volume) to complete the sentence. BIOLOGICAL HAZARDS: term effects) and strain (longAssociated with working with animals, people, or infectious plant materials. b.10 feet Using multi-receptacle boxes designed to be. a.311 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. 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. 10,000 milliamps (10 amps) Cardiac arrest and severe burns occur. Call ________ prior to digging to be connected with your local One Call Center to have all underground lines located by the utility company. 2. 0000057373 00000 n 1. You need to evaluate the situation you are in and assess your . Quiz Question 2: Which is acceptable when using powdered tools? 0000010603 00000 n . 3.Cramp 0000006866 00000 n The most dangerous place to use electrical equipment is? trailer <]/Prev 500768/XRefStm 1495>> startxref 0 %%EOF 222 0 obj <>stream Remove from service any equipment with frayed cords, missing ground prongs, cracked tool casings, etc. 1. 0000420564 00000 n He plans to use it over a period of at least six months. 3.When you are using portable power tools Both the operator and the victim failed to notice that the boom had contacted a 2,400-volt overhead power line. Electrical hazards are life threatening incidents that could happen due to electricity. 1476 0 obj <>stream _.9u'2G_0 Ue]e"x5|Y 2. 0000003603 00000 n The modification of the plug was not an intended use or prescribed by the manufacturer. 0000001495 00000 n c.Wood High humidity True. 0000001896 00000 n Electrical safety quiz answers are given below. 2.Something to transport the electrical current -- A conductor. 0000004921 00000 n d.Ground Fault Circuit Interrupter, : Another electrical hazard that can cause injury or death in the workplace is a ________ path to ground. gYpV:+ 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. Noise, : ________ or heavy perspiration can cause electricity to take an unintended path. b.30,000 volts Study with Quizlet and memorize flashcards containing terms like Bob is asked to repair some overhead wiring, requiring the use a ladder. Power was supplied through two extension cords from a nearby residence. 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. d. 411, You are working with a 10-foot section of a conductive pipe near power lines. Suppose a volcano threw so much ash into the air that it blocked much of the sunlight. -Grounding= a conductive connection to the earth which acts as a protective measure. Select the correct answer and then click on DONE. 0000002403 00000 n Using tools and equipment that can contact power lines increases the risk. 0000420887 00000 n d. 20 feet. 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. Electrical Safety Quiz Electrical safety is an important topic that you and your workers need to know about. Hand-operated metal shifting ropes or cables of electric elevators. OSHA 10 General Industry Test Answer Key WALKING. How might this event affect the ability of animals to obtain energy to live? This caused him to fall from the ladder and land in a puddle of water, still holding the saw. What is the output of the program in Exercise 17, if first = 26 and second = 8? hazard or that their employer is not following OSHA's rules. Provide a safe path to earth ground for electricity. 4.Dirt build-up, Use only approved and authorized power tools in areas where the following hazards may be present: The victim signaled the operator of the crane to extend the boom and lower the hoist cable. Ground metal parts of the following non-electrical equipment, as specified by the OSHA standard [29 CFR 1926.404(f)(7)(v)]: Frames and tracks of electrically operated cranes. OSHA 10 General Industry Topic Exams Answer Key TOPIC EXAM 1: INTRO TO OSHA 1. Fire The auger then fell across the other worker, the 24-year-old victim. Metal partitions, grill work, and similar metal enclosures around equipment of over 1kV between conductors. 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. specifically addresses electrical protective devices. 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). 0000013716 00000 n Draw a line from the item on the left that corresponds to the match on the right. The first worker knocked the auger off the victim, but saw that the electric cord was wrapped around the victim's thigh. You can classify scales for weighing objects as those that use springs and those that use standard masses to balance unknown masses. b.Yes, as it would be too expensive to install more permanent wiring and receptacles. 0000011060 00000 n B 208v. After the wall was poured, one driver cleaned the loading chute of his cement truck with a water hose mounted on the truck. 0000001116 00000 n View Best Practices with Power Lines Quiz OSHA 30.docx from OSHA 30 at Columbia Southern University. trailer <<11AC4BACEBCA4B32A885F1120BD3A307>]>> startxref 0 %%EOF 153 0 obj <>stream Regarding hand protection employers should: A. Electrical safety requirements necessary for the practical safeguarding of employees in the workplace. OSHA: Air Monitoring & Medical Surveillance, 5 ANO - RETOMANDO ARTIGO, SUBSTANTIVO E ADJE. Select the correct answer and then click DONE. Stay at least 10 feet away from overhead power lines. 0000004884 00000 n c.Three-prong plug 0000003900 00000 n 1452 0 obj <> endobj c. No, because the electricity is needed on a long-term basis. 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. 1) The _____ created the Occupational Safety and Health Administration (OSHA) to set and enforce protective workplace safety and health standards. a.Yes, as it is a mobile engine testing station. Co-workers provided CPR, but were unable to revive the victim. 1. 0000055319 00000 n 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. The workers had removed their shirts and were sweating. Be sure equipment that has been shop fabricated or altered is in compliance. Lx*jWP# /c2)|]NXqAx>=~'[ D. near other electrical equipment. 1 0 obj A worker was operating a " electric chisel when an electrical fault occurred in the casing of the tool, causing him to be fatally electrocuted. No GFCI's were used. Select the correct answer and then click DONE. d.50,000 volts. lb MKS Does the fall qualify as an electrical accident? Carly needs to use an extension cord with her corded nail gun. 1.Flammable liquids a.A small current 0000005042 00000 n Electric current cannot exist without an unbroken path to and from the conductor. Select the correct answer and then click DONE. Use only equipment that is approved to meet OSHA standards. Use only extension cords that are marked with a designation code for hard or extra-hard usage. 1.Is faulty Which of the following are insulators of electricity? Quiz Question 9: Conductor insulation must be approved for the ___________ of use? What do tripped circuit breakers and blown fuses indicate? (a) Describe the reaction between the hydride ion and water in terms of a Bronsted acid-base reaction. To avoid injury or death, you must understand and recognize hazards. 2. 0000007694 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. @*@;z}IAH@3MsgU1Dnf@agLahpCn@&b|-^;b0k*!3VYy,jy%( Z%|\Jg"dRp-Wbz3QJS%k9p_WtZ 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. 4.On equipment that must run unattended for long periods of time, Manufacturing equipment may be grounded using a wire connected to a rod driven into the earth. a. One worker, holding the deadman's switch, received a shock from a ground fault in the auger and was knocked back from the machine. 3.ack of ground fault protection. Among all of the safety measures that can and should be used to prevent electrical shock, which one is the most essential? [, Do not modify cords or use them incorrectly. 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.

which of the following are electrical hazards osha quizlet 2023