Exam (elaborations)
Physics Mock Exam Questions And Answers Latest Update
- Course
- Physics Placement
- Institution
- University Of California - Berkeley
Physics Mock Exam Questions And Answers Latest Update
[Show more]
Content preview
Physics Mock Exam QuestionsAnd Answers Latest Update
d. ALARA principle ANS✔✔ Reducing the likelihood of bioeffects from
acoustic energy is the mission of the:
a. Nyquist limit
b. Reynolds number
c. Huygens principle
d. ALARA principle
b. spatial pulse length ANS✔✔ The number of cycles in a pulse directly
relates to the:
a. duty factor
b. spatial pulse length
c. operating frequency
d. pulse repetition frequency
d. velocity of the reflector ANS✔✔ The Doppler shift frequency is
proportional to the:
a. cosine values
b. spatial pulse length
c. operating frequency
d. velocity of the reflector
,a. width diverges ANS✔✔ In the Fraunhofer zone, the beam:
a. width diverges
b. is conical in shape
c. intensity is greatest
d. intensity is inconsistent
c. reverberation ANS✔✔ Artifacts consisting of parallel equally spaced lines
are characteristic of:
a. multipath
b. grating lobes
c. reverberation
d. range ambiguity
d. acoustic enhancement ANS✔✔ An increase in reflection amplitudes from
reflectors behind a weakly attenuating structure is termed:
a. comet-tail artifact
b. acoustic shadowing
c. slice thickness artifact
d. acoustic enhancement
c. dynamic range ANS✔✔ The ratio of the largest power to the smallest
power the ultrasound system can handle describes:
a. bandwidth
b. compensation
c. dynamic range
,d. contrast resolution
d. operating frequency ANS✔✔ Axial resolution directly relates to the:
a. spatial pulse length
b. temporal resolution
c. transducer diameter
d. operating frequency
d. increase or decrease according to the polarity ANS✔✔ When voltage is
applied to the piezoelectric crystal, the crystal will:
a. vibrate
b. increase in size
c. decrease in size
d. increase or decrease according to the polarity
c. 50% ANS✔✔ The resistance of the arterioles accounts for approximately
what percentage of the total system resistance?
a. 25%
b. 33%
c. 50%
d. 75%
d. red blood cells ANS✔✔ Rayleigh scattering is mostly likely to occur when
encountering the:
a. liver
, b. pleura
c. diaphragm
d. red blood cells
d. black ANS✔✔ Which color always represents the baseline in color
Doppler imaging?
a. red
b. blue
c. white
d. black
c. number of cycles in a second ANS✔✔ Which of the following correctly
defines acoustic frequency?
a. length of one cycle
b. number of pulses in a cycle
c. number of cycles in a second
d. strength of the compression wave
b. fusion imaging ANS✔✔ Pairing ultrasound images with another imaging
modality for direct comparison describes:
a. spatial compounding
b. fusion imaging
c. parallel processing
d. multifocal imaging
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 Schoolflix. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $13.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
75323 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now