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