根据Types of Fire Extinguishers (灭火器)中第一段“Using the wrong type of extinguish er can be dangerous and make things worse.(使用错误类型的灭火器可能是危险的,使事情变得更糟)”及第五段“Make sure you have the correct type of fire extinguisher before you try to use it.(在你尝试使用灭火...
Aim the nozzle(喷嘴)at the base of the fire. Squeeze or press the handle. Sweep the spray(喷雾) from side-to-side at the fire’s base until it goes out.1.The purpose of the text is to ___.A.informB.persuadeC.entertainD.comment2.What should you do before using a fire extinguishe...
Pull the pin (销) at the top of the extinguisher cylinder (圆筒).Aim the nozzle (喷嘴) at the base of the fire.Press the handle.Sweep the spray (喷雾) from side-to-side at the fire's base until it goes out.(1) The purpose of the text is to . A . inform B . persuade C...
Pullthe pin at top of the extinguisher cylinder(灭火器圆筒). Aimthe nozzle(喷嘴)at the base of the fire. Squeezeor press the bandle. Sweepthe sprary from side-to-side at the fire's base until itgoes out. 知识点 参考答案
Using a Fire ExtinguisherTo help you remember how to use a fire extinguisher, learn PAPS. PAPS stands for Pull, Aim, Press, and Sweep.Pull the pin (销) at the top of the extinguisher cylinder (圆筒).Aim the nozzle (喷嘴) at the base of the fire....
由Using the wrong type of the extinguishers can be dangerous and make things worse.以及Make sure you have the correct type of fire extinguisher,可推断出在使用灭火器之前,要检查一下你是否选择对了合适的灭火器,选B。 【3】词义猜测题。Sweep the sprary from side-to-side at the fire’s base ...
They are often found in shops, offices, retail premises, schools, hotels, warehouses and domestic premises. They may have spray or jet nozzles and are usually able to put out a fire completely. A drawback is that they cannot be used on burning fat or oil (Class F), burning metals (...
Closed Fire Sprinkler System Wet Fire Sprinkler System Dry Alarm Valve Type Enclosed Type Wet Alarm Valve Structure Seat Type Alarm Valve Diameter 100mm Nozzle Flow Coefficient 80 Deluge Valve Type Diaphragm Type Connecting Thread R1/2"/3/4"/1" or NPT1/2"/3/4"/1" Surface Fnishi...
Aim the nozzle (喷嘴) at the base of the fire. Press the handle. Sweep the spray (喷雾) from side-to-side at the fire’s base until itgoes out. 1. What should you do before using a fire extinguisher? A.Check whether it is in good condition. ...
Closed Fire Sprinkler System Wet Fire Sprinkler System Nozzle Flow Coefficient 80 Item Fire Sprinkler Norminal Diameter(mm) DN15/DN20/DN25 Screw Thread 1/2′′ 3/4′′ 1 ′′ Thread Standard NPT/BSPT K-Factor 5.6(80)/8.0(115) Material Stainless Steel/Brass/Zinc Surface Finis...