The chamber located above the diaphragm of a single-stage regulator is which of the following?
a. Lower chamber c. High-pressure chamber
b. Pressure-relief valve d. Adjustable regula-tor
ANS: C
The high-pressure chamber is located above the diaphragm and contains a valve stem that will close the inlet when the pressure reaches its setting.
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Select the answer from Column II that best matches a term in Column I.
A. anthropometry B. body composition C. children obesity D. adult obesity E. height-weight table F. ectomorph G. waist-to-hip ratio H. skinfold calipers I. desirable adult BMI
Which of the following statements regarding steel columns is MOST accurate?
A) Because of low compressive strength, the cross-section of steel columns can be small compared to their length. B) The possibility of a steel column buckling is due to the alloys contained in the column. C) Columns that cannot rotate at their ends are less likely to buckle than columns that are free to rotate at their ends. D) The possibility of buckling is less with steel columns than with columns made of other materials.
Lysosomes are found in the cytoplasm of many cells and contain:
a. Cholesterol b. Hydrolytic enzymes c. Glycoproteins d. RNA
A(n) ____ can be used in patients with an intact gag reflex, unstable fractures of the mandible, trimus (lockjaw), or oral trauma.
A. nasopharyngeal airway B. oropharyngeal airway C. esophageal obturator airway D. laryngeal mask airway