ARDMS- SPI EXAM QUESTIONS AND
ANSWERS.
The horizontal axis, or x-axis - (correct answer) -Runs side to side
j. j. j. j. j. j. j. j. j. j. j.
The vertical axis, or y-axis - (correct answer) -Runs up and down
j. j. j. j. j. j. j. j. j. j. j.
Unrelated - (correct answer) -Two items that are not associated
j. j. j. j. j. j. j. j. j.
Related or Proportional - (correct answer) -Two items that are associated or affiliated
j. j. j. j. j. j. j. j. j. j. j. j. j.
However, the relationship between the items does not have to be specified
j. j. j. j. j. j. j. j. j. j. j.
Directly related or Directly proportional - (correct answer) -Two items that are associated
j. j. j. j. j. j. j. j. j. j. j. j.
such that when one item increases, the other increases
j. j. j. j. j. j. j. j. j.
Inversely related or inversely proportional - (correct answer) -Two items are associated
j. j. j. j. j. j. j. j. j. j. j.
such that when one item increases, the other decreases
j. j. j. j. j. j. j. j. j.
Reciprocal Relationship - (correct answer) -When two numbers with a reciprocal
j. j. j. j. j. j. j. j. j. j.
relationship are multiplied together, the result is one
j. j. j. j. j. j. j. j.
Reciprocal numbers are inverse because when one increases, the other decreases
j. j. j. j. j. j. j. j. j. j.
For a numerical answer to a question to be comprehensive, it requires a - (correct answer)
j. j. j. j. j. j. j. j. j. j. j. j. j. j. j.
-Unit
j.
"Increase by a factor" means - (correct answer) -To multiply by that number
j. j. j. j. j. j. j. j. j. j. j. j.
"Decrease by a factor" means - (correct answer) -To divide by that number
j. j. j. j. j. j. j. j. j. j. j. j.
Scientific or engineering notation is a shorthand manner to represent what types of
j. j. j. j. j. j. j. j. j. j. j. j.
numbers? - (correct answer) -Very large or very small numbers
j. j. j. j. j. j. j. j. j. j.
A number in scientific notation form with a positive exponent has a value - (correct answer)
j. j. j. j. j. j. j. j. j. j. j. j. j. j. j.
-Greater than 10
j. j. j.
A number in scientific notation form with an exponent of zero has a value - (correct answer)
j. j. j. j. j. j. j. j. j. j. j. j. j. j. j. j.
-Between 1 and 10
j. j. j. j.
A number in scientific notation form with a negative exponent has a value - (correct
j. j. j. j. j. j. j. j. j. j. j. j. j. j.
answer) -Less than 1
j. j. j. j.
,10⌃9 - (correct answer) -Prefix: giga
j. j. j. j. j.
Symbol: G j.
Meaning: billion j.
10⌃6 - (correct answer) -Prefix: mega
j. j. j. j. j.
Symbol: M j.
Meaning: million j.
10⌃3 - (correct answer) -Prefix: kilo
j. j. j. j. j.
Symbol: k j.
Meaning: thousand j.
10⌃2 - (correct answer) -Prefix: hecto
j. j. j. j. j.
Symbol: h j.
Meaning: hundred j.
10⌃1 - (correct answer) -Prefix: deca
j. j. j. j. j.
Symbol: da j.
Meaning: ten j.
10⌃-1 - (correct answer) -Prefix: deci
j. j. j. j. j.
Symbol: d j.
Meaning: tenth j.
10⌃-2 - (correct answer) -Prefix: centi
j. j. j. j. j.
Symbol: c j.
Meaning: hundredth j.
10⌃-3 - (correct answer) -Prefix: milli
j. j. j. j. j.
Symbol: m j.
Meaning: thousandth j.
10^-6 - (correct answer) -Prefix: micro
j. j. j. j. j.
Symbol: μ j.
Meaning: millionth j.
10^-9 - (correct answer) -Prefix: nano
j. j. j. j. j.
Symbol: n j.
Meaning: billionth j.
List all these metric terms in increasing order:
j. j. j. j. j. j. j. j.
A. mega
j.
B. micro
j.
C. milli
j.
D. hecto
j.
E. deca
j.
,F. deci - (correct answer) -micro, milli, deci, deca, hecto, mega
j. j. j. j. j. j. j. j. j. j.
List all these metric terms in decreasing order:
j. j. j. j. j. j. j.
A. nano j.
B. canti j.
C. giga j.
D. kilo j.
E. hecto j.
F. micro - (correct answer) -giga, kilo,hecto, centi, micro, nano
j. j. j. j. j. j. j. j. j.
Sound pulses travel through biologic tissue, or ______. - (correct answer) -Media
j. j. j. j. j. j. j. j. j. j. j.
All waves carry _____ from one location to another. - (correct answer) -Energy
j. j. j. j. j. j. j. j. j. j. j. j.
Sound is a __________ wave in which particles in the medium move. - (correct answer) -
j. j. j. j. j. j. j. j. j. j. j. j. j. j. j.
Mechanical
Sound cannot travel through a ______; it must travel through a ______. - (correct answer)
j. j. j. j. j. j. j. j. j. j. j. j. j. j.
-Vacuum, medium
j. j.
What does compressed mean? - (correct answer) -Squeezed together
j. j. j. j. j. j. j. j.
What does rarefied mean? - (correct answer) -Stretched apart
j. j. j. j. j. j. j. j.
Sound travels in a ________ line. - (correct answer) -Straight
j. j. j. j. j. j. j. j. j.
Sound waves are ____________ waves. - (correct answer) -Longitudinal
j. j. j. j. j. j. j. j.
What is the propagation speed dependent on? - (correct answer) -The medium
j. j. j. j. j. j. j. j. j. j. j.
Are there any biologic effects on tissue? - (correct answer) -No
j. j. j. j. j. j. j. j. j. j.
Sound waves are identified by - (correct answer) -Oscillations in acoustic variables
j. j. j. j. j. j. j. j. j. j. j.
What are the three acoustic variables? (With their units) - (correct answer) -pressure -
j. j. j. j. j. j. j. j. j. j. j. j. j.
pascals (Pa), density - kg/cm^3, distance - cm, mm
j. j. j. j. j. j. j. j. j.
If something other than pressure, density, or distance (particle motion) rhythmically
j. j. j. j. j. j. j. j. j. j.
oscillates in a wave, then the wave... - (correct answer) -Is not a sound wave
j. j. j. j. j. j. j. j. j. j. j. j. j. j. j.
Sound waves are also known as - (correct answer) -Acoustic waves
j. j. j. j. j. j. j. j. j. j.
What are the seven Acoustic Parameters? - (correct answer) -Period, frequency,
j. j. j. j. j. j. j. j. j. j.
amplitude, power, intensity, wavelength, propagation speed
j. j. j. j. j. j.
, Particles move in a direction that is perpendicular to the direction that the wave propagates
j. j. j. j. j. j. j. j. j. j. j. j. j. j.
in what wave? - (correct answer) -Transverse wave
j. j. j. j. j. j. j. j.
Particles move in the same direction that the wave propagates in a ____________ wave. -
j. j. j. j. j. j. j. j. j. j. j. j. j. j. j.
(correct answer) -Longitudinal j. j.
When are a pair of waves considered in-phase? - (correct answer) -When their peaks and
j. j. j. j. j. j. j. j. j. j. j. j. j. j.
troughs occur at the same time and at the same location
j. j. j. j. j. j. j. j. j. j. j.
Considered "in step" j. j.
What happens when two waves are out-of-phase? - (correct answer) -Their peaks occur at
j. j. j. j. j. j. j. j. j. j. j. j. j.
different times, and so do their troughs
j. j. j. j. j. j. j. j.
"out of step"
j. j.
What is interference? - (correct answer) -When more than one beam travels in a medium
j. j. j. j. j. j. j. j. j. j. j. j. j. j.
and arrive at the same location at exactly the same time
j. j. j. j. j. j. j. j. j. j. j. j.
These waves lose their individual characteristics and combine to form a single wave
j. j. j. j. j. j. j. j. j. j. j. j.
The interference of in-phase waves results in a single wave of _________ amplitude. This
j. j. j. j. j. j. j. j. j. j. j. j. j.
is called ___________. - (correct answer) -Greater, constructive interference
j. j. j. j. j. j. j. j. j.
(Larger Wave) j.
The interference of a pair of out-of-phase waves results in the formation of a single wave of
j. j. j. j. j. j. j. j. j. j. j. j. j. j. j. j.
_____ amplitude. This combination is called _____________________. - (correct
j. j. j. j. j. j. j. j. j.
answer) -Lesser, destructive interference
j. j. j. j.
(Smaller Wave) j.
When frequencies of waves differ, what kind of wave occurs? - (correct answer) -Both
j. j. j. j. j. j. j. j. j. j. j. j. j.
constructive and destructive interference
j. j. j. j.
What do waves transfer from one location to another? - (correct answer) -Energy
j. j. j. j. j. j. j. j. j. j. j. j.
Two waves are traveling in a medium and arrive at a location at the same time. What event
j. j. j. j. j. j. j. j. j. j. j. j. j. j. j. j. j.
takes place? - (correct answer) -Interference
j. j. j. j. j. j.
Which types of waves will exhibit both constructive and destructive interference? - (correct
j. j. j. j. j. j. j. j. j. j. j. j.
answer) -Waves of different frequency
j. j. j. j. j.
What units are used to report the pressure of a sound beam? - (correct answer) -Pascals,
j. j. j. j. j. j. j. j. j. j. j. j. j. j. j.
Pa
j.
What describes features of a sound wave? - (correct answer) -Parameters
j. j. j. j. j. j. j. j. j. j.
What is the source of a sound wave? - (correct answer) -The ultrasound system and the
j. j. j. j. j. j. j. j. j. j. j. j. j. j. j.
transducer
j.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Wisdoms. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.99. You're not tied to anything after your purchase.
