What factors affect the combustion-supporting properties of O2? 1. Concentration 2. Partial pressure 3. Humidity
a. 1 only
b. 2 only
c. 1 and 2 only
d. 1, 2, and 3
ANS: C
Oxygen is nonflammable, but it greatly accelerates combustion. Burning speed increases with ei-ther (1) an increase in O2 percentage at a fixed total pressure or (2) an increase in total pressure of O2 at a constant gas concentration. Thus, both O2 concentration and partial pressure influence the rate of burning.
You might also like to view...
What type of Qi is derived from food?
a. Zong Qi b. Gu Qi c. Yuan Qi d. Kong Qi e. Zheng QI
When performing an in-person screening, you should:
A) sit face-to-face with the patient B) stand while the patient sits C) sit while the patient stands D) both stand
Gray top tube
What will be an ideal response?
Your patient has what appears to be a dislocated shoulder. Treatment for this patient should be:
A. sling and swathe the injured shoulder B. immobilize the arm to the side of the patient C. reset the shoulder and then immobilize D. wrap the upper body in a pillow and immobilize both arms