What is a smoke detector used for? A. Detecting smoke and sounding an alarm in case of fire. B. Detecting the temperature. C. Detecting the humidity. 相关知识点: 试题来源: 解析 A。选项 B 是检测温度,不是烟雾探测器的主要用途。选项 C 是检测湿度,也不对。选项 A 表示烟雾探测器用于检测...
smoke alarm C. smoke detector D. gas detector 相关知识点: 试题来源: 解析 C。“smoke detector”是烟雾探测器;A 选项“fire detector”是火灾探测器;B 选项“smoke alarm”是烟雾报警器;D 选项“gas detector”是燃气探测器。本题考查消防设备的英文表达,涉及到名词的区分。反馈 收藏 ...
WHAT IS BEAM SMOKE DETECTOR? A beam smoke detector is a device that consists of transmitter/receiver unit and a reflector. It transmits beam of light in order to detect smoke across large areas, wherein smoke is naturally a sign of fire. Beam smoke detector works on the principle of light...
At home, we have a thing that can detect smoke. What is it? A. Smoke detector B. Fan C. Light bulb D. Clock 相关知识点: 试题来源: 解析 A。在家里能检测烟雾的是烟雾探测器,即“smoke detector”,所以选项 A 正确。选项 B 是风扇;选项 C 是灯泡;选项 D 是时钟。本题考查了消防设备的...
题目What is the meaning of this sign? A. Emergency exit B. Smoke detector C. Fire engine D. Fire E. scape ladder 相关知识点: 试题来源: 解析 D。此标识是“Fire escape ladder”,意思是消防逃生梯,用于在火灾时帮助人们逃生。反馈 收藏 ...
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What is the purpose of a smoke detector? A. 西青西青To put out fires西青西青 B. 说平际中到习小说平际中到习小To detect smoke and sound an alarm说平际中到习小说平际中到习小 C. 工音计量每代治叫精众决定山调工音计量每代治叫精众决定山调To store water for firefighting工音计量每代治叫精...
(±0.0025V), but your conditioner only has a ±50V range, your signal will be extremely small within the resulting gain aperture to the point of being unusable. Similarly, if your voltage is going to span ±100V but your only range is ±50V, half of the signal will be clipped by the...
One common issue is a low refrigerant level. The refrigerant is responsible for cooling the air, and if it’s too low, the AC system won’t perform optimally. Visit a professional mechanic or AC specialist to check and recharge the refrigerant if needed. Additionally, it’s essential to ...