In most cases, it is desired a water spray be used to extinguish burning gases, such as LPG (Liquefied Petroleum Gas). 3rd Class A2 Chapter 15 In most cases, it is desired a water spray be used to extinguish burning gases, such as LPG (Liquefied Petroleum Gas). a. True b. False Answer: B Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+