ID Page view A Read aloud Add text V Draw CC5W Pri PDV HT Highlight A-1 For a release above the ground, a dispersion model shows that the maximum concentration always occurs: a. on the ground just below the release point b. a distance downwind independent of the release height a distance downwind with the concentration increasing with the release height d. a distance downwind with the concentration decreasing with the release height c. A-2 The speed of sound in air (may assume ideal gas) at 95F and 1 atm is about: a. 1130 ft/s b. 1140 fts c. 1145 ft/s d. 1154 fts none of the above e. A-3 a. The LFLmix of a gas mixture composed 0.8 vol% of hexane (LFL-1.2 vol) and 16 vol% of methane (LFLmeth - 5.0 vol%) is most likely LFLIX 2.43 vol% and mixture is combustible b. LFL mix 2.48 vol% and mixture is combustible c. LFLmx 2.43 vol% and mixture is not combustible LFLmx 2.48 vol% and mixture is not combustible B Hydrogen sunde His uns contestom burn and 20 What hole size