NICET Level 2 questions with correct answers

4 - Answer Consider a room which is 40' square. How many 15cd wall mounted strobes are required to adequately cover this space? Annually - Answer What is the testing frequency of a strobe? 15 - Answer In a corridor application, visible appliances shall be rated not less than ________ cd? 4 hours - Answer Consider a household fire alarm system where the primary power is provided by a circuit that can be switched off by means other than a circuit breaker. The battery must be recharged in____________ The control unit shall identify the affected detector when the compensation limit has been reached. - Answer Where automatic drift compensation of detectors is provided: 3 - Answer A fire alarm system requires the use of smoke detectors in a corridor. The corridor is 10' wide and 120' long. The ceiling of the corridor is smooth and flat and 10' high. What is the minimum number of smoke detectors in the corridor. One half smooth ceiling NFPA 72 17.7.3.2.4.2(2)bi pg 98 - Answer The fire alarm system design for a room called for smoke detector spacing based on a smooth flat ceiling. Upon inspecting the room, it is determined that the ceiling has beams. The beam spacing is less than 40% of the ceiling height. NFPA72 permits smooth ceiling spacing in the direction parallel to the beams and __________ spacing in the direction perpendicular to the beams.