百度试题 结果1 题目What should you not use to put out an electrical fire? A. Fire extinguisher. B. Sand. C. Water. D. Blanket. 相关知识点: 试题来源: 解析 C。不能用水扑灭电气火灾。可以用灭火器、沙子和毯子。反馈 收藏
Electrical Fireballs: What Are They?To the Editor of the SCIENTIFIC AMERICAN: This question, that I sent to the English Mechanic and which was published in that journal on July 30th, page 618, letter 576, brought out a number of very interesting answers in subsequent numbers of the same ...
whetdz whether a couple one whether could succeed whether doctors or nu whether electrical co whether happy or frus whether in the car whether it is day and whether or not colour whether or not i have whether or not reinfo whether or not they d whether rich or poor whether success or no...
A. Keep using them. B. Unplug them immediately. C. Ignore them. 相关知识点: 试题来源: 解析 B。发生火灾时要立即拔掉电器插头。选项 A 继续使用电器很危险。选项 C 忽视电器也不对。消防安全无小事,及时处理电器很重要。反馈 收藏
The amount of power dissipated in a circuit can be easily determined. It is simply the product of the potential difference or voltage across the particular element, multiplied by the current flowing through it. In other words an electrical fire running from a 250 volt supply, and consuming 4 ...
electrical appliances and sockets, put off the switch immediately, stop using and report to the duty officer immediately; 11. use of open fire is strictly prohibited in the overseas apartments such as using candles ...
Whether it is an electrical heater, a large electrical grid system, a mobile phone, computer, remote sensor node or whatever, the concept of electrical current is central to its operation.However current as such cannot normally be seen, although its effects can be seen, heard and felt all ...
Fire (Physiology) To generate an electrical impulse. Used of a neuron. Flame Criticize harshly, on the e-mail Fire To become yellowed or brown before reaching maturity, as grain. Fire (uncountable) A (usually self-sustaining) chemical reaction involving the bonding of oxygen with carbon or ot...
Also, electricity is both a form of energy and a type of matter. Both. Electricity is a kind of low-frequency radio wave which is made of protons. It's a mysterious force which cannot be seen, and yet it looks like blue-white fire that arcs across the clouds. It moves forward at ...
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