Which of the following statement(s) is (are) not true about ...

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Which of the following statement(s) is (are) not true about cylinder valves?
 
  1. Diaphragm valves cannot withstand pressure greater than 1500 psig.
  2. Direct-acting valves are used for pressure greater than 1500 psig.
  3. Diaphragm valves should not be used with anesthetic gases.
  4. Stem leakage can occur with direct-acting valves.
  a. 3 c. 1 and 4
  b. 2 and 4 d. 1, 2, and 3

Question 2

What is the cylinder color for nitrous oxide?
 
  a. Red c. Brown
  b. Black and white d. Light blue

[Alyson.hiatt@yahoo.com]

Answer to Question 1

ANS: A
Diaphragm valves are ideal for situations in which no gas leaks can be allowed, such as with flammable anesthetics.

Answer to Question 2

ANS: D
Nitrous oxide is light blue. Ethylene is red. Compressed air is black and white. Helium is brown. See Table 3-4.