Halon extinguishers used on a class C fire should be directed at the().
相似题目
-
To extinguish an electrical fire, you should use ().
-
A definite advantage of using water as a fire extinguishing agent is its characteristic of().
-
Due to the hazards involved with Halon extinguishers on a ship,the size II extinguisher may only be used().
-
Foam-type portable fire extinguishers are most useful in combating fires involving().
-
Halon fire extinguishers are NOT effective when used on which types of fires?()
-
Halon extinguishes a fire by().
-
After using a C02 portable extinguisher,it should be().
-
Fire extinguishers used on ship’s are numbered by size I through V,with I being().
-
(),as the chemical extinguisher agent,should be used for an electric fire.
-
The principal personnel hazard unique to Halon extinguishers is().
-
Which characteristic is an advantage of Halon as a fire extinguishing medium?()
-
This fire extinguisher is to be used only in case of().
-
Which is a disadvantage of Halon as a fire extinguishing medium?()
-
A foam-type portable fire extinguisher would be most useful in combating a fire in().
-
A galley grease fire on the stove may be extinguished using().
-
After using a C02 portable extinguisher,it should be().
-
A foam-type portable fire extinguisher is most useful in fighting a fire in().
-
Halon extinguishes fire primarily by().
-
After using a CO2 extinguisher on a ship,it should be().
-
Halon from extinguishers used on a class B fire,should be directed().
-
178.Fire in electrical equipment should be extinguished by using ____
-
Which of the listed fire extinguishers is recommended for use on an electrical switchboard fire?
推荐题目
- 小型沼气工程的厌氧发酵池总池容积应大于多少立方米?
- 视频信号在传输中衰减,会使图像的哪些参数降低?
- ()是期货交易最大的特征。
- 在检定卡尺时,主要检定卡尺的哪些项目?
- 企业对作业场所和工作岗位存在的危险有害因素及防范措施、事故应急措施、职业病危害防护措施等应尽哪些义务?
- 平面构图必须遵循的是()。
- 消弧线圈吸湿器油封异常、呼吸不畅,吸湿剂潮解变色部分超过总量的2/3或自上而下变色,开展D类检修,检查玻璃罩,胶垫等是否完好,如果吸湿剂吸潮饱和,应予以更换,对吸湿器油封进行补油。
- 应用卡托普利降压时,可引起哪种离子缺乏
- 根据制图区域的大小和形状,省级上地利用挂图的比例尺一般选为()
- 2017年6月,人民银行牵头召开反洗钱工作部际联席会议第()次全体会议,对落实《三反意见》进行了全面部署