细节理解题。根据文章Smoke Detector中的句子If your smoke detector is working properly, the red light should be on. If the red light is not blinking(闪动),contact residence hall staff immediately.可知,烟雾探测器是否安全运行,看红灯是否闪动。故选D。
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细节理解题。根据倒数第三段If your smoke detector is working properly, the red light should be on. If the red light is not blinking(闪动), contact residence hall staff immediately.可知,如果您的烟雾探测器工作正常,红色指示灯应该是亮的。如遇红灯不闪烁,应立即与宿舍工作人员联系。由此可知,为了确保烟...
That extra warning time can mean the difference from light damage to a total loss in an emergency. Sadly at the moment, there's no one smart smoke detector that really stands out. Our favorite for a few years running has been the Nest Protect. It's the most full-featured alarm, ...
百度试题 结果1 题目 If your smoke detector is workingproperly,the red light should be on.(2018·天津高考阅读A)___ Ⅲ.微完形——根据语境选出正确选项 相关知识点: 试题来源: 解析 合适地 反馈 收藏
These trouble conditions apply to the DSC WS4916 wireless smoke detector. This smoke detector has one LED light and a sounder to indicate the detector’s status.State LED Sounder Alarm Mode Action Normal (Standby) Blinks every 50 seconds Off None The device is operating normally. No action ...
i. Blue/Red Alarm Threshold: adjusts the threshold at which the blue/IR LED reflection delta triggers the alarm. 12. Advanced Settings tab: select to view advanced settings shown in Figure 4-2. SLVAFN0 – AUGUST 2023 Submit Document Feedback Dual-Ray Smoke Detector with the TPS8802 and ...
FIG. 6 is a diagram showing the geometry used for numerical evaluation of the fire detector of the invention; FIG. 7 shows a graph of the effect of reflections on the apparent temperatures estimated by the present invention; FIG. 8 shows a graph of the effect of reflection on the apparent...
the smoke detector has a large mounting base, pre-stripped wiring harness with easy off cap, and a front battery pull tab so you can activate the backup battery without removing the alarm from the mounting bracket. Red and green LED lights on the smoke detector indicate the alarm's status,...
color selective filter means for causing said detector means to be alternately responsive to blue light and red light; signal processing means operative upon signals generated by said photodetector means for generating a first signal component (Ipb) which is responsive to the blue polarized light rece...