Exam (elaborations)
EDELMEN'S SPI EXAM 2024/2025 WITH 100% ACCURATE SOLUTIONS
- Course
- Institution
EDELMEN'S SPI EXAM 2024/2025 WITH 100% ACCURATE SOLUTIONS
[Show more]
Content preview
EDELMEN'S SPI EXAM 2024/2025 WITH100% ACCURATE SOLUTIONS
Sound waves are:
a) electric
b) mechanical, transverse
c) spectral
d) longitudinal, mechanical - Precise Answer ✔✔D
The speed of sound of ultrasound in soft tissue is closest to:
a) 1,540 km/sec
b) 1.54 km/sec
c) 1,500 m/s
d) 1,540 mm/sec - Precise Answer ✔✔C
Which is not an acoustic variable?
a) density
b) pressure
c) distance
d) intensity - Precise Answer ✔✔D
The effects of soft tissue on ultrasound are called:
,a) acoustic proliferation properties
b) dynamic effects
c) acoustic propagation properties
d) biological effects - Precise Answer ✔✔C
All of the following are true EXCEPT:
a) two waves with identical frequencies must interfere constructively.
b) constructive interference is associated with waves that are in-phase.
c) out-of-phase waves interfere destructively.
d) waves of different frequencies may exhibit both constructive and
destructive interference at different times. - Precise Answer ✔✔A
Put in decreasing order:
a) deca
b) deci
c) micro
d) centi - Precise Answer ✔✔abdc
______ is the time to complete one cycle
a) pulse duration
b) pulse period
c) period
d) duration period - Precise Answer ✔✔C
,Which of the following sound waves is ultrasonic and least useful in
diagnostic imaging?
a) 30 KHz
b) 8 Mhz
c) 8,000 Hz
d) 3,000 Hz
e) 15 Hz - Precise Answer ✔✔A
______ is the distance covered by one cycle.
a) pulse length
b) wavelength
c) cycle distance
d) cycle duration - Precise Answer ✔✔B
Which of the following is determined by the source and the medium?
a) frequency
b) period
c) propagation speed
d) range resolution - Precise Answer ✔✔D
Propagation speed = _______ x wavelength
a) pulse duration
, b) period
c) # of cycles in the pulse
d) frequency - Precise Answer ✔✔D
As a result of _____ the propagation speed increases.
a) increasing stiffness and increasing density
b) increasing stiffness and increasing elasticity
c) decreasing compressibility and decreasing density
d) decreasing stiffness and decreasing density. - Precise Answer ✔✔C
Put in decreasing order of propagation speed.
a) gas
b) liquid
c) solid - Precise Answer ✔✔c b a
If the frequency of an ultrasound wave is doubled, what happens to the
period?
a) doubles
b) halved
c) remains the same
d) 4x greater - Precise Answer ✔✔B
The units of pulse repetition frequency are:
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 YANCHY. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $16.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
81989 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now