The volume displacement device that creates a sinusoidal flow waveform is which of the follow-ing?
a. Rotary drive piston
b. Linear drive piston
c. Spring-loaded bellows
d. Proportional solenoid
ANS: A
The rotary drive piston creates a flow pattern that is slow at the beginning of inspiration, achieves highest speed at mid-inspiration, and tapers off at end-inspiration, creating a sinusoidal wave-form (sine waveform).
You might also like to view...
When planning a news conference, invited special guests can enhance the event's message. These guests:
a. should never be allowed to answer questions because this is your news conference, not theirs. b. may speak or answer questions, depending upon circumstances. c. should always be seated at the back of the room. d. should have their own press agents.
Long-term (LTC) care is defined as
A) care for the elderly B) care for the disabled C) health care services to an individual for more than 60 days D) health care services to an individual for more than 90 days
In the early seventeenth century, Virginia´s blacks ________
A)were encouraged to marry white women B)occasionally served in the House of Burgesses C)sometimes became planters D)greatly outnumbered whites E)slowly integrated into white society
The bony prominence on the lateral/superior aspect of the thigh is called the:
A. sacral symphysis. B. iliac crest. C. sacroiliac joint. D. greater trochanter.