B-29 FDNY Exam Questions And Well Elaborated Solutions

B-29 FDNY Exam Questions And Well Elaborated Solutions UPS battery systems that were installed before July 1 200(pre existing systems) shall - ANSWER -Not be required to comply with the design, installation, and ventilation requirements of the 2007 or 2014 fire code. Any better system in place, regardless of installation date, must be under the - ANSWER -General supervision. QUICK visual inspections shall be performed - ANSWER -Once a day The environment for cells should be - ANSWER -Clean, cool, and dry. A UPS room should have what kind of alarm system? - ANSWER -Hydrogen detector. Hazards High voltage electricity -fire -explosion -electrical and high Temperature burns - ANSWER -If any of the above incidents occur, contact 911 immediately. Possible causes of an explosion would be: - ANSWER -Electrolyte Overcharge Safety valve or vents dial due to excess dirt and debris. Hazard Gas release - ANSWER -Explosion Personal injury Hazard Hydrogen gas - ANSWER -Odorless gas Highly flammable (Lower explosion limits 4.0, Upper explosion limits 75.0). Citywide standard key - ANSWER -Also known as a "2642" key Capacity test - ANSWER -A controlled constant current or constant power discharge of a battery to a specified terminal voltage. Fire command center - ANSWER -Where the status of the detection, alarm communications and control systems is displayed, and from which the systems can be manually controlled. Ups battery systems are required to be filed and approved by - ANSWER -The nyc department of buildings COF holders are only allowed to make - ANSWER -Visual inspections UPS systems installed on or after July 1 2008 shall - ANSWER -Comply with the fire code edition in effect at the time they were installed. Central station - ANSWER -A facility that receives alarm signals from a protected premises and retransmits or otherwise reports such alarm signals to the FDNY. Flat charge - ANSWER -A constant potential charge applied to a battery to maintain it in a fully charged condition while minimizing degradation or water consumption. General Supervision - ANSWER -Except as otherwise provided in the fire code, supervision by the holder of any COF who is responsible for performing the duties outlined but need not be personally present on the premises at all times. Key box - ANSWER -A secure device with a lock operable only by a citywide standard key or other approved key. Stationary storage battery - ANSWER -A storage battery designed for use in a stationary installation, in which electrochemical cells are interconnected to supply a nominal voltage of direct current power. Uninterruptible power supply (UPS) - ANSWER -A power supply used to provide alternating current power to a load for some period of time in the event of a power failure UPS system capacity - ANSWER -The ability to deliver power to the load for a specified amount of time, measured in volt- amp (VA). Rated capacity (Lead-Acid) - ANSWER -The capacity assigned to a cell by its manufacturer for a given discharge rate, at a specified electrolyte temperature and specific gravity, to a given end of discharge voltage. Service test - ANSWER -A test of a battery's capability, in "as-found" condition, to satisfy the battery duty cycle. Specific gravity (SG) - ANSWER -The comparison of density compared to water. Thermal runaway - ANSWER -Occurs when more heat is being generated than released, thus causing an increase in temperature of the battery. Battery system anatomy - ANSWER -The process by which a batter creates electricity heavily depends on what kind of battery it is; however, they all have a flow of electricity within each cell called current. Batteries have positive and negative - ANSWER -Electrodes which the current flows between Every battery has a positive and negative plate for? - ANSWER -Rechargeable batteries, the charges on the plates are reversed when the battery is being charged