Electrical Safety: Hazards, Risks, and Protective Measures, Exams of Nursing

Download Electrical Safety: Hazards, Risks, and Protective Measures and more Exams Nursing in PDF only on Docsity! Job Info 1-7 Which of the following is not a hazard that can be created by electrical power? Select one: a. Arc blasts and arc burns b. Electrocutions c. Heat materials to a point that creates combustion d. Ignite combustible vapors e. Spontaneous combustion - correct answer ✔✔Spontaneous combustion How often do electrocutions occur in the United States? - correct answer ✔✔1 per day What are the two outcomes to an electric shock? - correct answer ✔✔The victim dies from the shock The victim survives and has some discomfort for a short duration Occupational Safety & Health Administration (OSHA) places the threshold voltage of electric shock at ? - correct answer ✔✔50 V What is the physical reaction when a person is shocked with 5 mA to 10 mA of current? - correct answer ✔✔Muscular contractions can occur. After coming into contact with a source that has as little as 11 mA of current, a person might not have any voluntary control while current continues. - correct answer ✔✔True What amount of current will likely cause respiratory arrest? - correct answer ✔✔40 mA to 50 mA (up to 99 mA) Ventricular fibrillation will likely occur when someone comes into contact with ? of current. - correct answer ✔✔100 mA to 200 mA Which National Fire Protection Association (NFPA) document covers safe working practices for electrical work? - correct answer ✔✔NFPA 70E LOTO is short for "lockout/tag-on. - correct answer ✔✔False Which of the following are categories for shock protection approach boundaries to energized conductors or circuit parts? I. Approved approach II. Limited approach III. Nominal approach IV. Restricted approach - correct answer ✔✔II. and IV. Temperatures as high as ? Fahrenheit can occur during an arc flash or arc blast. - correct answer ✔✔35,000° Flame-resistant clothing is designed for the amount of heat that could be present. This heat is expressed in calories per square centimeter of "incident energy." - correct answer ✔✔True The flash protection boundary is the distance rating that refers to how far you must be away from the flash to sustain a burn that is "just curable," according to OSHA. - correct answer ✔✔True The purpose of a fuse or circuit breaker is to protect the premise from fire caused by overheating wiring or from ignition due to a(n) ? circuit. - correct answer ✔✔Short An Arc Fault Circuit Interrupter (AFCI) is a device that monitors both the amount of current leaving the source and the amount of current returning to the source. - correct answer ✔✔False A(n) ? GFCI requires the amount of current leaving the source and returning to the source to be within 5 mA of each other - correct answer ✔✔Class A