Understanding Ultrasound Physics and
Instrumentation TEST STUDY GUIDE
2025/2026 ACCURATE QUESTIONS AND
VERIFIED CORRECT SOLUTIONS WITH
RATIONALES || 100% GUARANTEED PASS
<RECENT VERSION>
1. Image Brightness - ANSWER ✓ Visual intensity of the ultrasound image.
2. Reflectors - ANSWER ✓ Structures that reflect sound waves back to
transducer.
3. Depth Gain Compensation (DGC) - ANSWER ✓ Synonym for
compensation addressing depth-related signal loss.
4. Automated Compensation - ANSWER ✓ Feature that adjusts compensation
settings automatically.
5. Parameters - ANSWER ✓ Describe features of sound wave.
6. Period - ANSWER ✓ The time it takes a wave to vibrate a single cycle; or
the start of 1 cycle to the next.
7. Period is reported in units of time ____________ - ANSWER ✓
microseconds
8. The typical value of a period in diagnostic ultrasound is ____ __ ____
____________. - ANSWER ✓ 0.06 to 0.5 microseconds
9. Period is determined only by the _____ ______. - ANSWER ✓ Sound
source
,10.The sonographer cannot change/adjust the the period. - ANSWER ✓ True
11.Frequency is the number of particular events that occur in a ________
________ __ ____. - ANSWER ✓ specific duration of time
12.Frequency is reported in units per second or __. - ANSWER ✓ Hz
13.1 cycle/second= - ANSWER ✓ 1 hertz
14.Typical values range from approximately __ ___ to __ ___. - ANSWER ✓ 2
MHz to 15 MHz
15.'frequency of sound is only determined by the _____ ______. - ANSWER ✓
sound source
16.The sonographer cannot change/adjust the frequency. - ANSWER ✓ True
17.Infrasound is less than __ __. - ANSWER ✓ 20 Hz
18.Audible sound is between __ __ and __ ___. - ANSWER ✓ 20 Hz and 20
kHz
19.Ultrasound is greater than __ ___. - ANSWER ✓ 20 kHz
20.Period and frequency are _______ related. - ANSWER ✓ inversely
21.As frequency increases, period _________. - ANSWER ✓ decreases
22.The logarithm of a numeral is define as how many times_____ must be
multiplied together to get that numeral.
A. 1
B. 2
C. 5
D. 10 - ANSWER ✓ The logarithm of a numeral is equal to the number
of Tens that are
23.Is cholesterol level and longevity
a. inversely related
, b. directly related
c. unrelated - ANSWER ✓ a. inversely related. cholesterol
increases, lifespan decreases.
24.Is smoking and the likelihood of cardiovascular disease
a. inversely related
b. directly related
c. unrelated - ANSWER ✓ b. directly related
25.Are years employed and days of vacation earned per year
a. inversely related
b. directly related
c. unrelated - ANSWER ✓ b. directly related
26.Is IQ and shoe size
a. inversely related
b. directly related
c. unrelated - ANSWER ✓ c. unrelated
27.Is caloric intake and weight
a. inversely related
b. directly related
c. unrelated - ANSWER ✓ b. directly related. weight increase
when calories increase
28.Is hours spent exercising and weight
a. inversely related
b. directly related
c. unrelated - ANSWER ✓ a. inversely related. exercise
increases, weight decreases
29.Is alcohol intake and sobriety
a. inversely related
b. directly related
c. unrelated - ANSWER ✓ a. inversely related
30.How are the size of a tree and its age related?
a. inversely related
b. directly related
, c. unrelated - ANSWER ✓ b. directly related
31.How are the height of a person and the color of his automobile related?
a. inversely related
b. directly related
c. unrelated - ANSWER ✓ c. unrelated
32.How is the age of a loaf of bread related to its freshness?
a. inversely related
b. directly related
c. unrelated - ANSWER ✓ a. inversely related. age increases,
freshness decreases
33.List these metric terms in INCREASING order:
A. mega
B. micro
C. milli
D. hecto
E. deca
F. deci - ANSWER ✓ B. micro, C. milli, F. deci, E. deca, D. hecto, A.
mega
34.how many milliliters are in 8 liters.
A. 1/8
B. 8
c. 800
d. 8000 - ANSWER ✓ d. 8000. milli means thousandth, so multiply 1000 by
8.
35.how many centimeters are in 3 meters?
a. 1/300
b. 1/3
c. 3
d. 300 - ANSWER ✓ d. 300. centi means hundredth, so multiply
3 by 100
36.how many kilometers are in 3000 meters?
a. 1/300
Instrumentation TEST STUDY GUIDE
2025/2026 ACCURATE QUESTIONS AND
VERIFIED CORRECT SOLUTIONS WITH
RATIONALES || 100% GUARANTEED PASS
<RECENT VERSION>
1. Image Brightness - ANSWER ✓ Visual intensity of the ultrasound image.
2. Reflectors - ANSWER ✓ Structures that reflect sound waves back to
transducer.
3. Depth Gain Compensation (DGC) - ANSWER ✓ Synonym for
compensation addressing depth-related signal loss.
4. Automated Compensation - ANSWER ✓ Feature that adjusts compensation
settings automatically.
5. Parameters - ANSWER ✓ Describe features of sound wave.
6. Period - ANSWER ✓ The time it takes a wave to vibrate a single cycle; or
the start of 1 cycle to the next.
7. Period is reported in units of time ____________ - ANSWER ✓
microseconds
8. The typical value of a period in diagnostic ultrasound is ____ __ ____
____________. - ANSWER ✓ 0.06 to 0.5 microseconds
9. Period is determined only by the _____ ______. - ANSWER ✓ Sound
source
,10.The sonographer cannot change/adjust the the period. - ANSWER ✓ True
11.Frequency is the number of particular events that occur in a ________
________ __ ____. - ANSWER ✓ specific duration of time
12.Frequency is reported in units per second or __. - ANSWER ✓ Hz
13.1 cycle/second= - ANSWER ✓ 1 hertz
14.Typical values range from approximately __ ___ to __ ___. - ANSWER ✓ 2
MHz to 15 MHz
15.'frequency of sound is only determined by the _____ ______. - ANSWER ✓
sound source
16.The sonographer cannot change/adjust the frequency. - ANSWER ✓ True
17.Infrasound is less than __ __. - ANSWER ✓ 20 Hz
18.Audible sound is between __ __ and __ ___. - ANSWER ✓ 20 Hz and 20
kHz
19.Ultrasound is greater than __ ___. - ANSWER ✓ 20 kHz
20.Period and frequency are _______ related. - ANSWER ✓ inversely
21.As frequency increases, period _________. - ANSWER ✓ decreases
22.The logarithm of a numeral is define as how many times_____ must be
multiplied together to get that numeral.
A. 1
B. 2
C. 5
D. 10 - ANSWER ✓ The logarithm of a numeral is equal to the number
of Tens that are
23.Is cholesterol level and longevity
a. inversely related
, b. directly related
c. unrelated - ANSWER ✓ a. inversely related. cholesterol
increases, lifespan decreases.
24.Is smoking and the likelihood of cardiovascular disease
a. inversely related
b. directly related
c. unrelated - ANSWER ✓ b. directly related
25.Are years employed and days of vacation earned per year
a. inversely related
b. directly related
c. unrelated - ANSWER ✓ b. directly related
26.Is IQ and shoe size
a. inversely related
b. directly related
c. unrelated - ANSWER ✓ c. unrelated
27.Is caloric intake and weight
a. inversely related
b. directly related
c. unrelated - ANSWER ✓ b. directly related. weight increase
when calories increase
28.Is hours spent exercising and weight
a. inversely related
b. directly related
c. unrelated - ANSWER ✓ a. inversely related. exercise
increases, weight decreases
29.Is alcohol intake and sobriety
a. inversely related
b. directly related
c. unrelated - ANSWER ✓ a. inversely related
30.How are the size of a tree and its age related?
a. inversely related
b. directly related
, c. unrelated - ANSWER ✓ b. directly related
31.How are the height of a person and the color of his automobile related?
a. inversely related
b. directly related
c. unrelated - ANSWER ✓ c. unrelated
32.How is the age of a loaf of bread related to its freshness?
a. inversely related
b. directly related
c. unrelated - ANSWER ✓ a. inversely related. age increases,
freshness decreases
33.List these metric terms in INCREASING order:
A. mega
B. micro
C. milli
D. hecto
E. deca
F. deci - ANSWER ✓ B. micro, C. milli, F. deci, E. deca, D. hecto, A.
mega
34.how many milliliters are in 8 liters.
A. 1/8
B. 8
c. 800
d. 8000 - ANSWER ✓ d. 8000. milli means thousandth, so multiply 1000 by
8.
35.how many centimeters are in 3 meters?
a. 1/300
b. 1/3
c. 3
d. 300 - ANSWER ✓ d. 300. centi means hundredth, so multiply
3 by 100
36.how many kilometers are in 3000 meters?
a. 1/300
