which of the following are electrical hazards osha quizlet

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. a.Standing in water You can classify scales for weighing objects as those that use springs and those that use standard masses to balance unknown masses. Quiz Question 10: Ground-fault circuit interrupters must be used for all of the following except? 0000004884 00000 n 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). Best practices with power lines include: Electric current cannot exist without an unbroken path to and from the conductor. . D. Communicate the hazard to the crew and subs, use signs and bar E. Both C and D Q22. Which of the following are electrical hazards? - Brainly.com b.30,000 volts 2.Grease Which of the following are caused by contact with electricity? What is the minimum clearance distance you must maintain from the power lines? )KL3C?e%Y92$,]^)kmR/!8\ JF N'bT\U1+tc+&:'ZuGi!UeUrE [?CrU.&|#@Ed,=2UF]r/n/{v-;v>%/~;[*AxBU,-#!uyFGR,Wv[ cOzObnZfI4ob:pf "~ .iBE@mOs:Os5U9cnU` Vd"F'4Bm?>}hyRQyrX0U026h7#L'. View Best Practices with Power Lines Quiz OSHA 30.docx from OSHA 30 at Columbia Southern University. Of the following choices, which are frequent electrical hazards %PDF-1.4 % Electrical safety quiz answers are given below. Leaving or using electrical appliances near water - As electric current is transmitted faster in on wet surfaces, you stand a chance of getting an electric shock. Quiz Question 3: Power cords can be damaged by which of the following? Using cords or tools with worn insulation or exposed wires. 0000005632 00000 n Using circuit breakers or fuses with the wrong rating for over-current protection, e.g. 0000010603 00000 n %PDF-1.4 % 3.The length of time the body is in contact with electricity D 600v. 2. c.Absorb any water around the area Quiz Question 5: A/an ___________ is a unit of measurement for electrical resistance. Switch 0000089142 00000 n Electrical Safety Standards in the Workplace - NFPA 70E - Grainger KnowHow <> 1.Flammable liquids Question 1: Employers must ensure that every electric utilization system and all utilization equipment installed, majorly modified, or replaced after March 15, 1972, complies with the standards for electricity set by the National Fire Protection Association, which have been adopted by OSHA. [, Do not modify cords or use them incorrectly. 5>vB35Plm$\4{U[lU`t~.vJGmFO^@+ cGPzNY*oS(m%q{Agp Question 4: When a worker receives an electric shock, first aid must start within ___________ minutes. 1. 10,000 milliamps (10 amps) Cardiac arrest and severe burns occur. When inspecting extension cords, look for: 3. b+t6W' te+.W_{8u7Dt@1c. Do not remove ground prongs from cord- and plug-connected equipment or extension cords. OSHA 10 General Industry Test Answer Key WALKING. 15,000 milliamps (15 amps) Lowest overcurrent at which a typical fuse or circuit breaker opens a circuit! 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. B 208v. These short objective type questions with answers are very important for competitive exams as well as Board exams. 4.Circuit breakers, When inspecting power tools, look for: c.Guaranteed Fault Circuit Interrupter If you are touching any grounded material while using a power tool a.Shut off power within a fraction of a second 4 0 obj Electrical Safety Quiz - OSHA.net Supply power for tools or equipment on a long-term basis. d.A power tool, A GFCI is designed to: 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. he most common shock-related injuries are: s\A0W+ He yelled for his co-workers to disconnect the power, which they did. 0000014257 00000 n Intentionally creating a low-resistance path that connects to the earth. 0000003603 00000 n Two of the extension cords had no ground prongs, and some of them were repaired with electrical tape. Besides personal bodily injury, what other electrical hazards can be found in the workplace? An employee was texturing a wall using an air compressor. -Rubber. gYpV:+ 0000422244 00000 n 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. d.The body of the power tool. Electricity to the auger was supplied by a series of 50-foot extension cords running to an adjacent property. 3 0 obj 0000003640 00000 n Explosion -Voltage= a measure of electrical force. b.Yes, as it would be too expensive to install more permanent wiring and receptacles. PDF SAFETY HAZARDS: These are the most PHYSICAL HAZARDS: CHEMICAL HAZARDS 0000001604 00000 n Seven employees of a masonry company were erecting a brick wall from a tubular, welded-frame scaffold approximately 24 feet high. 4.Good condition of moveable parts, Items that could encourage overheating and cause tools to malfunction or start a fire include: 2. The source of the shocks -- the saw -- was not replaced. OSHA 30 Construction Final Test Answer Key - Studylib OSHA 29 CFR 1910, Subpart S . Get resources on specific hazards and their control, including identification, risk assessment and inspections, to keep your workplace healthy and safe. [Flexible Cords and Power Tools]. -If current passes through the body near the heart or brain. Use only equipment that is approved to meet OSHA standards. -Falls. If the insulation on the tool's power cord is damaged and you touch this area while grounded, the electricity will ________. SCENARIO: You encounter a co-worker on a residential remodeling job. d. Power outlets, ________ are anything that can transmit electrical current. 0000004921 00000 n Question 2: It's okay to use extension cords with worn insulation, as long as you are careful about it. This caused him to fall from the ladder and land in a puddle of water, still holding the saw. Select the correct answer and then click DONE. 0000421920 00000 n Latoya is using a mixing motor to mix pool chemicals in a plastic drum. Select the correct answer and then click DONE. Question 3: If following lock out/tag out procedures, what step should be taken BEFORE you shut down the equipment? -Grounding= a conductive connection to the earth which acts as a protective measure. NFPA 70E: Standard for Electrical Safety in the Workplace Using multi-receptacle boxes designed to be. OSHA will keep all identities confidential. 0000002479 00000 n %PDF-1.5 When an electric shock occurs, your muscles may: Metal partitions, grill work, and similar metal enclosures around equipment of over 1kV between conductors. 3.Vapor 2.Using an aluminum ladder when the possibility exists for contact with electricity. 0000002195 00000 n -Current= the movement of electrical charge. The victim signaled the operator of the crane to extend the boom and lower the hoist cable. Potential hazards of electricity are preventable if you: Electricity must always travel in a(n) ________, ________ circuit. [Power Tools]. Select the correct answer and then click DONE. 1. While attempting to unplug the compressor from the extension cord, the employee was fatally shocked. 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.Your thumb. Determine duration, frequency, degree of exposure to hazards and physical stress. 0000004444 00000 n 0000004274 00000 n He may have dropped the extension cord at the site and not heard the connector break. 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). Both the operator and the victim failed to notice that the boom had contacted a 2,400-volt overhead power line. What type of burns are the result of current flowing through and exiting the body? Ground all power supply systems, electrical circuits, and electrical equipment. 0000004793 00000 n 0000007427 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`! 4.Organs, The presence of ________ can turn you, your equipment, or insulators like wood into conductors. 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. 4. Select the choices that accurately define the common electrical term.