(See NFPA 70E-2021 Article 130 and OSHA subpart S part 1910.333 (a) (1)- (2) and (c) for complete details.) It is important to note that NFPA 70E is a . Reportedly, he was shocked throughout the morning, and he had replaced one of the extension cords in an effort to eliminate the shocks. Intentionally creating a low-resistance path that connects to the earth. What three things must be present for a current to flow through a conductor. 0000089142 00000 n 0000427811 00000 n c.Absorb any water around the area b.burns. 4,600. using a 30-amp breaker in a system with 15- or 20-amp receptacles. Quiz Question 2: Which is acceptable when using powdered tools? Get resources on specific hazards and their control, including identification, risk assessment and inspections, to keep your workplace healthy and safe. 1.Pain Which of the following factors determine how severe an electrical injury might be? Which of the following are insulators of electricity? [. Quiz Question 3: Power cords can be damaged by which of the following? Potential hazards of electricity are preventable if you: Electricity must always travel in a(n) ________, ________ circuit. The router's 3-wire power cord was spliced to a 2-wire cord and plug set which was not rated for hard service. 0000420887 00000 n Follow manufacturers' recommended testing procedure to insure GFCI is working correctly. 0000004686 00000 n High humidity Using the wrong light bulb wattage; Overloading power strips and outlets; Unprotected electrical outlets; Poor wiring; Defective electrical wires 3.Draped over equipment. Select the correct answer and then click DONE. Which of the following can be caused by exposure to an arc flash? Question 4: Which of the following is a type of burn caused by electrical hazards? c.The outlet. 3.Cramp [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. 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. Select the correct answer and then click DONE. Check your employee's electrical safety knowledge through an electrical safety quiz. (A) Shotgun sticks. Select the correct answer and then click DONE. Potential hazards of electricity are preventable if you do which of the following listed below? The auger has a one-quarter horsepower motor encased in a metal housing with two handles. H\n@0vj@/R#tnvihavopnS1>v8Z6zLpOCRU.O^6pImjgk{xv6%zp\,{|7_WqNfhu09$U?kW}: }y}]OIL5~W*8D~%W-yww;sORYbfspA.%YJV L%=Kx&0W+ 2.Flooding Question 1: Each year, approximately __________ workers suffer from electricity related injuries. )KL3C?e%Y92$,]^)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'. Ground metal parts of the following non-electrical equipment, as specified by the OSHA standard [, Frames and tracks of electrically operated. Quiz Question 10: Ground-fault circuit interrupters must be used for all of the following except? 4.Damaged cover or insulation, When using electric-powered hand tools, do not overload: gYpV:+ 4.Circuit breakers, When inspecting power tools, look for: A 56-year-old construction laborer was removing forms from a concrete wall poured several days earlier. The workers had removed their shirts and were sweating. You discover the electrical cord on a drill has been damaged and some of the cord's insulation is missing. 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. 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. <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 792 612] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> Quiz Question 9: Conductor insulation must be approved for the ___________ of use? gYpV:+ 1452 0 obj <> endobj Is the west coast of Africa a plate boundary? To be safe, you must think about your job and plan for hazards. a) Ensure overhead power line safety PDF OSHA Safety - Electrical Safety - Red Vector An OSHA inspection revealed that the tool's original power cord had been replaced with a flat cord, which was not designated for hard service, and that strain relief was not provided at the point where the cord entered the tool. 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. Continually audit cords on-site. Find the volume of the parallelepiped determined by the vertices (1,1,1),(4,7,2) . 2 0 obj lex has set up a mobile engine testing station in the maintenance area. Apply a warning tag to any defective tool and do not use it until the problem has been corrected. _.9u'2G_0 Ue]e"x5|Y trailer <]/Prev 500768/XRefStm 1495>> startxref 0 %%EOF 222 0 obj <>stream How fast would the ball be moving at the moment of release? a.Yes, as it is a mobile engine testing station. Which one of these methods MOST effectively protects machines, tools, and operators against damage from electrical current? 1.Fingernails !DP#vr-\DM<6V-2'I5l6)Z@^m=}c3-aUOo6rr V-Y3d6HABmjD $TQCvK*eg&|Y596#H\ 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. Other protective measures include guarding or insulating the lines. Electrical Hazards Electrical hazards can be found in nearly every roofing work site. <> The following are electrical hazards: Shock. 12 months C. 6 months D. Never Q23. 3. Electrical hazards expose workers to the following: Burns: Three types; electrical, arc flash, or thermal contact. Draw a line from the item on the left that corresponds to the match on the right. 0000420564 00000 n It's okay to use extension cords with worn insulation, as . trailer d. Power outlets, ________ are anything that can transmit electrical current. H. Osha 10 test answers 2021 quizlet - Math Questions 5.Twitch, Electrical shock may result in: What factors determine the severity of Dirk's injuries? The victim was totally deaf in one ear and suffered diminished hearing in the other. OSHA 10 General Industry Test Answer Key WALKING. c. Inductive objects 1.Extension cords Seven employees of a masonry company were erecting a brick wall from a tubular, welded-frame scaffold approximately 24 feet high. The source of the shocks -- the saw -- was not replaced. Is split A co-worker disconnected the power cord to the saw, too late to save the victim. What do tripped circuit breakers and blown fuses indicate? s\A0W+GA?~G?nnnnnnnnnnnn>>{Wrbrbrbrb sbZef'N(:QvD":1vbo7o7o7W*_bTs6ivyU,;dFW` { endstream endobj 191 0 obj [/ICCBased 211 0 R] endobj 192 0 obj <> endobj 193 0 obj <> endobj 194 0 obj <> endobj 195 0 obj <> endobj 196 0 obj <>stream 1.Missing 2. OSHA 29 CFR 1910, Subpart S . 0000001116 00000 n a.Electricity Know glove capability VS hazard anticipated (exposure to chemicals, heat, or flames). 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. 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 7: Which is not an insulator? 4. PDF SAFETY HAZARDS: These are the most PHYSICAL HAZARDS: CHEMICAL HAZARDS A 29-year-old worker was electrocuted when he pushed a crane cable into a 7,200-volt power line. b.Metal 2. HWMo#7v#h>6,Z4- 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. 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. Extension cords may become a trip hazard when: 10,000 milliamps (10 amps) Cardiac arrest and severe burns occur. Explain the process that prevents the poles from steadily cooling off and the tropics from heating up over time. b.Shut off power within five minutes of the imbalance What was Latoya's first mistake? 0000003900 00000 n The individual's perspiration-soaked clothing/body contacted bare exposed conductors on one of the cords, causing an electrocution. 0000028595 00000 n Explain the purpose and use of the MyPlate symbol. -Glass. 1.Clench 1. 3.Loss of eyesight d. 20 feet. You need to evaluate the situation you are in and assess your . OSHA 10 General Industry Topic Exams Answer Key TOPIC EXAM 1: INTRO TO OSHA 1. 0000012360 00000 n CCOHS: Electrical Safety - Basic Information [Flexible Cords and Power Tools]. Does the fall qualify as an electrical accident? g]+fn_m{mja_0Y w endstream endobj 189 0 obj <> endobj 190 0 obj <>stream (D) None of the above. 0000002403 00000 n 0000056642 00000 n 3. 0000024814 00000 n b.Yes, because Bob was on . -Wood. The normal wear and tear on extension and flexible cords at your site can loosen or expose wires, creating hazardous conditions. If the insulation on the tool's power cord is damaged and you touch this area while grounded, the electricity will ________. Electrical Safety Multiple Choice Questions and Answers for competitive exams. hazard or that their employer is not following OSHA's rules. 0000013716 00000 n -Grounding= a conductive connection to the earth which acts as a protective measure. startxref D. Communicate the hazard to the crew and subs, use signs and bar E. Both C and D Q22. 2.Placed along a wall. 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. 0000004884 00000 n Electrical hazards are life threatening incidents that could happen due to electricity. OSHA-10: Avoiding Electrocution Hazards Flashcards | Quizlet 2.Something to transport the electrical current -- A conductor. 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. List the four main types of electrical injuries, Using the illustration, select the answer that matches the picture, Identify the illustration by selecting the appropriate answer. 0000006893 00000 n What is the minimum clearance distance you must maintain from the power lines? The modification of the plug was not an intended use or prescribed by the manufacturer. Equipment used in manner prescribed. NFPA 70E: Standard for Electrical Safety in the Workplace Which of the following injuries can occur when muscles flex or twitch from an electrical shock? |tYny@YE>LkNj4-czZf"Usw>j\sv3fn},>},KeA s d. Not checking to make sure that the motor was properly grounded, If the circuit does not turn off when testing the GFCI, the GFCI: 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 1. Using cords or tools with worn insulation or exposed wires. Examples Of Electrical Hazards. As the victim climbed down a makeshift ladder, he shifted the saw from his right hand to his left, and was shocked. -Current= the movement of electrical charge. a.Yes, because the electrical shock caused the fall. Electrical safety quiz answers are given below. Electrical safety requirements necessary for the practical safeguarding of employees in the workplace. 2.Complete Call ________ prior to digging to be connected with your local One Call Center to have all underground lines located by the utility company. lb MKS Fatal electrocution is the main risk, but burns and falls from elevations are also hazards. Determine duration, frequency, degree of exposure to hazards and physical stress. Effective means of controlling power line hazards include: What is the primary purpose of properly grounding equipment? 1. a.Ground Fault Circuit Insulator Select the correct answer and then click DONE. Electrical hazards like frayed cords, missing ground pins, improper wiring or the harm that these hazards pose. c) Establish and enact an assured equipment grounding conductor program (AEGCP) As he removed the forms, he wrapped them with a length of cable called a choker, which was to be attached to a crane. 0000013999 00000 n Question 1: Which of these is a type of Ground Fault Circuit Adapter? stream OSHA will keep all identities confidential. 0000005716 00000 n 0000068035 00000 n 2. 0000108920 00000 n B 208v. OSHA: Electrical Hazards Flashcards | Quizlet 128 0 obj <> endobj xref 128 26 0000000016 00000 n <> Carly needs to use an extension cord with her corded nail gun. True. 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. 2.Loose screws Among all of the safety measures that can and should be used to prevent electrical shock, which one is the most essential? Select the choices that accurately define the common electrical term. OSHA: Common Electrical Hazards Flashcards | Quizlet This may damage your equipment and cause employee injuries. a.20,000 volts 3.When you are using portable power tools 0000002385 00000 n a.related to muscle damage. Electrical Safety Quiz-Test Your Electrical Safety Knowledge Supply power for tools or equipment on a long-term basis. Even when the power system is properly grounded, electrical equipment can instantly change from safe to hazardous because of extreme conditions and rough treatment. d.A power tool, A GFCI is designed to: 0000002479 00000 n D. Have an ANSI sticker and an expiration date. _5JKy. 1. Before using the equipment, be sure that the ground wire: 1) The _____ created the Occupational Safety and Health Administration (OSHA) to set and enforce protective workplace safety and health standards.