Aneroid manometers use ________ to measure pressure. a. a ...

[Cooldude101]

Aneroid manometers use ________ to measure pressure.
 
  a. a vacuum chamber with a flexible dia-phragm
  b. capacitance and changes in output voltage
  c. changes in inductance of two coils
  d. a Wheatstone bridge circuit

Question 2

One type of ventilatory pattern necessary for calculating functional residual capacity through the use of a body plethysmograph is:
 
  a. deep breathing with a breath hold. c. deep, rapid breath-ing.
  b. rapid, shallow breathing. d. slow, deep breath-ing.

[lou]

Answer to Question 1

ANS: A
An aneroid manometer consists of a vacuum chamber with a flexible cover or diaphragm that flexes when pressure is applied to it. Electromechanical transducers use variable capacitance; strain gauge pressure transducers use Wheatstone bridge circuits; and variable inductance trans-ducers use the magnetic flux between two coils to measure pressure.

Answer to Question 2

ANS: B
Mouth pressure and box pressure changes are measured during tidal breathing and panting ma-neuvers.