100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
ARDMS SPI 500 QUESTIONS AND ANSWERS $11.09   Add to cart

Exam (elaborations)

ARDMS SPI 500 QUESTIONS AND ANSWERS

 18 views  0 purchase
  • Course
  • ARDMS SPI 500
  • Institution
  • ARDMS SPI 500

ARDMS SPI 500 QUESTIONS AND ANSWERS

Preview 2 out of 5  pages

  • August 7, 2024
  • 5
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • ARDMS SPI 500
  • ARDMS SPI 500
avatar-seller
GEEKA
ARDMS SPI 500 QUESTIONS AND ANSWERS
A sound wave is - answer- mechanical, longitudinal

A compression area of a sound wave is - answer- high pressure, high density

A rarefaction area of a sound wave is - answer- low pressure, low density

Which is considered an acoustic variable - answer- pressure

Which is a unit for pressure - answer- N/m2

Which is a unit for density - answer- lbs/cm3

Which wave propagates in a medium - answer- sound

The range for ultrasound is - answer- greater than 20KHz

____ is the number of wave cycles per second - answer- frequency

One kilohertz is equal to - answer- 1,000 cycles per second

One megahertz is equal to - answer- 1,000,000 cycles per second

The useful frequency range for clinical imaging ultrasound is - answer- 2 MHz to 10
MHz

Frequency is determined by the - answer- source

Frequency affects all of the following, except: wavelength, resolution, penetration,
impedance - answer- impedance

The times per cycle is - answer- period

The period for a 5 MHz probe is - answer- 0.2usec

If frequency increases, period will - answer- decreases

Period is determined by the - answer- source

Period multiplied by the number of cycles in a pulse equals - answer- pulse duration

The distance between cyclical peaks is - answer- wavelength

The symbol for wavelength is - answer- lambda

, The wavelength of a 5 MHz probe in soft tissue is - answer- 0.3 mm

As frequency increases, wavelength (assume same medium) - answer- decreases

Wavelength is determined by the - answer- source and medium

As wavelength decreases - answer- resolution improves

The rate at which a sound vibration propagates through a medium is called all of the
following, except: sound speed, prop speed, speed of sound, velocity - answer- velocity

The units for propagation speed include all the following, except: km/sec, mph, msec,
mm/sec - answer- msec

The average speed of sound in soft tissue is - answer- 1540 m/sec

Arrange the following in increasing order of sound speed in soft tissue - answer- air, fat,
muscle, soft tissue, muscle, bone

The prop speed of sound of the ceramic lead zirconate titanate (PZT) is approx -
answer- 4000 m/sec

speed of sound is determined by - answer- medium

The peak variation minus the mean variation is - answer- amplitude

All of the following are possible units for amplitude, except: degrees, decibels, Pascal,
watts - answer- degrees

The maximum variation of an acoustic variable is 60. The mean value is 45. The
maximum value is 30. The amplitude is - answer- 15

Amplitude is determined by - answer- source

Which ultrasound machine control will affect amplitude - answer- output power

As sound propagates through a medium, amplitude - answer- decreases

The total energy transferred is - answer- power

Power is determined by - answer- source

The amplitude of a wave is 4, power is - answer- 8

Power may be affected by which gain control - answer- transmit

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

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

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

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 GEEKA. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $11.09. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

72042 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$11.09
  • (0)
  Add to cart