What type of fire detectors is the first to go of?in case of a fire? 假如发生火灾,什么类型的探测器首先使用? A. Smoke detectors B. Flame detectors C. Heat detectors D. Gas detectors 相关知识点: 试题来源: 解析 A. Smoke detectors 烟雾探测器 ...
B不正确。因为感温探测器(heat-activated detectors)可以设置为当达到预先设定的温度(固定温度)时或者温度升高持续了一段时间(上升率)时响起警报。上升率温度传感器因为更加敏感,所以通常比固定温度传感器发出警报的速度快,但有时也会造成虚假警报。C不正确。因为红外火焰探测器(infrared flame detector)探测火焰排放,并...
Different Types of Fire Alarm Detectors At the core of a fire alarm system are the detection devices, from sophisticated intelligent smoke detectors to simple manually operated break glass units, there are a wide array of different types, but we can divide them into groups including: –Heat de...
What are Foehn winds? What is the activity level of americium-241 in smoke detectors? What is the Fujita scale? What is roasting in metallurgy? What kind of wind shear is the most hazardous? What is a small whirlwind called? What steel is needed to strike fire steel?
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Current:What Are Fire and Gas Safety Systems ? Fire and gas safety systems continuously monitors for abnormal situations, such as a fire, or combustible or toxic gas release within the plant. They provide early warning and mitigation actions to prevent escalation of the incident and protect the ...
Guide to fire alarm detectors: what is the difference between various fire alarm detectors and how should they be applied? This article serves as guide that can be used as an introduction for new technicians or as a refresher for seasoned technicians.Hammerberg, Thomas P...
故选B。] 答案B 解析 细节理解题。由文章第二段第二句“Most are also equipped with automatic fire alarm systems consisting of heat detectors,smoke detectors and sprinklers”可知,自动火灾警报系统包括热量探测器、烟雾探测器和喷水灭火装置,和B项意思一致,故选B项。
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What do the automatic fire alarm systems include? A. Pipes and smoke detectors. B. Sprinklers and fire alarm pull stations. C. Fire alarm pull stations and pipes. D. Smoke detectors and sprinklers. 相关知识点: 试题来源: 解析 D 反馈 收藏 ...