ARDMS- SPI EXAM QUESTIONS WITH
VERIFIED ANSWERS.
The horizontal axis, or x-axis - Correct Answer-Runs side to side
The vertical axis, or y-axis - Correct Answer-Runs up and down
Unrelated - Correct Answer-Two items that are not associated
Related or Proportional - Correct Answer-Two items that are associated or
affiliated
However, the relationship between the items does not have to be specified
Directly related or Directly proportional - Correct Answer-Two items that are
associated such that when one item increases, the other increases
Inversely related or inversely proportional - Correct Answer-Two items are
associated such that when one item increases, the other decreases
Reciprocal Relationship - Correct Answer-When two numbers with a
reciprocal relationship are multiplied together, the result is one
Reciprocal numbers are inverse because when one increases, the other
decreases
For a numerical answer to a question to be comprehensive, it requires a -
Correct Answer-Unit
"Increase by a factor" means - Correct Answer-To multiply by that number
"Decrease by a factor" means - Correct Answer-To divide by that number
Scientific or engineering notation is a shorthand manner to represent what
types of numbers? - Correct Answer-Very large or very small numbers
A number in scientific notation form with a positive exponent has a value -
Correct Answer-Greater than 10
,A number in scientific notation form with an exponent of zero has a value -
Correct Answer-Between 1 and 10
A number in scientific notation form with a negative exponent has a value -
Correct Answer-Less than 1
10⌃9 - Correct Answer-Prefix: giga
Symbol: G
Meaning: billion
10⌃6 - Correct Answer-Prefix: mega
Symbol: M
Meaning: million
10⌃3 - Correct Answer-Prefix: kilo
Symbol: k
Meaning: thousand
10⌃2 - Correct Answer-Prefix: hecto
Symbol: h
Meaning: hundred
10⌃1 - Correct Answer-Prefix: deca
Symbol: da
Meaning: ten
10⌃-1 - Correct Answer-Prefix: deci
Symbol: d
Meaning: tenth
10⌃-2 - Correct Answer-Prefix: centi
Symbol: c
Meaning: hundredth
10⌃-3 - Correct Answer-Prefix: milli
Symbol: m
Meaning: thousandth
10^-6 - Correct Answer-Prefix: micro
,Symbol: μ
Meaning: millionth
10^-9 - Correct Answer-Prefix: nano
Symbol: n
Meaning: billionth
List all these metric terms in increasing order:
A. mega
B. micro
C. milli
D. hecto
E. deca
F. deci - Correct Answer-micro, milli, deci, deca, hecto, mega
List all these metric terms in decreasing order:
A. nano
B. canti
C. giga
D. kilo
E. hecto
F. micro - Correct Answer-giga, kilo,hecto, centi, micro, nano
Sound pulses travel through biologic tissue, or ______. - Correct Answer-Media
All waves carry _____ from one location to another. - Correct Answer-Energy
Sound is a __________ wave in which particles in the medium move. - Correct
Answer-Mechanical
Sound cannot travel through a ______; it must travel through a ______. -
Correct Answer-Vacuum, medium
What does compressed mean? - Correct Answer-Squeezed together
What does rarefied mean? - Correct Answer-Stretched apart
Sound travels in a ________ line. - Correct Answer-Straight
Sound waves are ____________ waves. - Correct Answer-Longitudinal
, What is the propagation speed dependent on? - Correct Answer-The medium
Are there any biologic effects on tissue? - Correct Answer-No
Sound waves are identified by - Correct Answer-Oscillations in acoustic
variables
What are the three acoustic variables? (With their units) - Correct Answer-
pressure - pascals (Pa), density - kg/cm^3, distance - cm, mm
If something other than pressure, density, or distance (particle motion)
rhythmically oscillates in a wave, then the wave... - Correct Answer-Is not a
sound wave
Sound waves are also known as - Correct Answer-Acoustic waves
What are the seven Acoustic Parameters? - Correct Answer-Period,
frequency, amplitude, power, intensity, wavelength, propagation speed
Particles move in a direction that is perpendicular to the direction that the
wave propagates in what wave? - Correct Answer-Transverse wave
Particles move in the same direction that the wave propagates in a
____________ wave. - Correct Answer-Longitudinal
When are a pair of waves considered in-phase? - Correct Answer-When their
peaks and troughs occur at the same time and at the same location
Considered "in step"
What happens when two waves are out-of-phase? - Correct Answer-Their
peaks occur at different times, and so do their troughs
"out of step"
What is interference? - Correct Answer-When more than one beam travels in
a medium and arrive at the same location at exactly the same time
These waves lose their individual characteristics and combine to form a
single wave
VERIFIED ANSWERS.
The horizontal axis, or x-axis - Correct Answer-Runs side to side
The vertical axis, or y-axis - Correct Answer-Runs up and down
Unrelated - Correct Answer-Two items that are not associated
Related or Proportional - Correct Answer-Two items that are associated or
affiliated
However, the relationship between the items does not have to be specified
Directly related or Directly proportional - Correct Answer-Two items that are
associated such that when one item increases, the other increases
Inversely related or inversely proportional - Correct Answer-Two items are
associated such that when one item increases, the other decreases
Reciprocal Relationship - Correct Answer-When two numbers with a
reciprocal relationship are multiplied together, the result is one
Reciprocal numbers are inverse because when one increases, the other
decreases
For a numerical answer to a question to be comprehensive, it requires a -
Correct Answer-Unit
"Increase by a factor" means - Correct Answer-To multiply by that number
"Decrease by a factor" means - Correct Answer-To divide by that number
Scientific or engineering notation is a shorthand manner to represent what
types of numbers? - Correct Answer-Very large or very small numbers
A number in scientific notation form with a positive exponent has a value -
Correct Answer-Greater than 10
,A number in scientific notation form with an exponent of zero has a value -
Correct Answer-Between 1 and 10
A number in scientific notation form with a negative exponent has a value -
Correct Answer-Less than 1
10⌃9 - Correct Answer-Prefix: giga
Symbol: G
Meaning: billion
10⌃6 - Correct Answer-Prefix: mega
Symbol: M
Meaning: million
10⌃3 - Correct Answer-Prefix: kilo
Symbol: k
Meaning: thousand
10⌃2 - Correct Answer-Prefix: hecto
Symbol: h
Meaning: hundred
10⌃1 - Correct Answer-Prefix: deca
Symbol: da
Meaning: ten
10⌃-1 - Correct Answer-Prefix: deci
Symbol: d
Meaning: tenth
10⌃-2 - Correct Answer-Prefix: centi
Symbol: c
Meaning: hundredth
10⌃-3 - Correct Answer-Prefix: milli
Symbol: m
Meaning: thousandth
10^-6 - Correct Answer-Prefix: micro
,Symbol: μ
Meaning: millionth
10^-9 - Correct Answer-Prefix: nano
Symbol: n
Meaning: billionth
List all these metric terms in increasing order:
A. mega
B. micro
C. milli
D. hecto
E. deca
F. deci - Correct Answer-micro, milli, deci, deca, hecto, mega
List all these metric terms in decreasing order:
A. nano
B. canti
C. giga
D. kilo
E. hecto
F. micro - Correct Answer-giga, kilo,hecto, centi, micro, nano
Sound pulses travel through biologic tissue, or ______. - Correct Answer-Media
All waves carry _____ from one location to another. - Correct Answer-Energy
Sound is a __________ wave in which particles in the medium move. - Correct
Answer-Mechanical
Sound cannot travel through a ______; it must travel through a ______. -
Correct Answer-Vacuum, medium
What does compressed mean? - Correct Answer-Squeezed together
What does rarefied mean? - Correct Answer-Stretched apart
Sound travels in a ________ line. - Correct Answer-Straight
Sound waves are ____________ waves. - Correct Answer-Longitudinal
, What is the propagation speed dependent on? - Correct Answer-The medium
Are there any biologic effects on tissue? - Correct Answer-No
Sound waves are identified by - Correct Answer-Oscillations in acoustic
variables
What are the three acoustic variables? (With their units) - Correct Answer-
pressure - pascals (Pa), density - kg/cm^3, distance - cm, mm
If something other than pressure, density, or distance (particle motion)
rhythmically oscillates in a wave, then the wave... - Correct Answer-Is not a
sound wave
Sound waves are also known as - Correct Answer-Acoustic waves
What are the seven Acoustic Parameters? - Correct Answer-Period,
frequency, amplitude, power, intensity, wavelength, propagation speed
Particles move in a direction that is perpendicular to the direction that the
wave propagates in what wave? - Correct Answer-Transverse wave
Particles move in the same direction that the wave propagates in a
____________ wave. - Correct Answer-Longitudinal
When are a pair of waves considered in-phase? - Correct Answer-When their
peaks and troughs occur at the same time and at the same location
Considered "in step"
What happens when two waves are out-of-phase? - Correct Answer-Their
peaks occur at different times, and so do their troughs
"out of step"
What is interference? - Correct Answer-When more than one beam travels in
a medium and arrive at the same location at exactly the same time
These waves lose their individual characteristics and combine to form a
single wave
