Question

14. Which of the following should never be cor GFCI breaker? The NEC protected by a following should never be connected to a circuit proter 19. rece finis out - re a. b. & c. d. a receptacle serving a kitchen countertop a workbench receptacle an isolation transformer a smoke detector system Which sms should be break 20. 15. When the test is not performed automatically, GFci mechanisms she tested oooo monthly, by the homeowner annually, by the homeowner annually, by a licensed electrician by a licensed electrician, immediately after installation only An IDCI is specially designed to detect circuit contact with the human body water fire itself (i.e., internal short circuit) 17. Transient line surges which originate within a building are termed ring wave impulse M.O.V.s lock-ups A/An can reduce the undesirable noise in computer rooms. shock wave systems cover advantage cover isolated ground receptacle

Answer 1

14 A ans : (0) The GF CS Ckt breaker protects the house wiles and leceptacles from over heating and possible con fise, and it can protects the people and is often found in bathrooms and kitchens where electrical devices are cesed and peoples bare flesh may be a contact caith the floor or metal fextures which provide an alternative path from for current to travel in the case of an electrical facelt answeg: (a) The GFCI outlets should be tested every month and deplaced by every decade. anscoca: (6) An immersion - detection cat intexorcept (OCT) is an anothed device intended to be cesed coith electrical appliances and designed to inteasupt the ckt to be load when an appilance is een intencionally immersed en water. 17) o answer (0) transient line surges which originate with in a building are teamed as movs. the every time a MOV shorts, its inteanal structures is changed and its threshold voltage can be slightly leduced. QMOU requires resistance in the supply line in order to imit the voltage:

18. Answege : (d) an isolated ground recepticle can reduce the undesirable noise in computea rooms.aod it can reduce the electrical noise, but if installed incorrectly, it can create a dangeraces installation. thie recepticle differes in constraction.from its self- grounding counted past.