1 | P a g e | © copyright 2024/2025 | Grade A+
MRSO: Exam 1 Questions & 100% Correct
Answers
The control room is found where?
a. Zone I
b. Zone II
c. Zone III
d. Zone IV
✓ ~~> C. Zone III
Which of the following describe when a non-ferrous object is repulsed by
static magnetic field?
a. Fourier transformation
b. Lenz's force
c. Ohm's law
d. Larmor equation
✓ ~~> b. Lenz's force
Which of the following are recommended by the ACR Guidance document
in MR safety 2013 in proper scanning of a patient?
Master01 | September, 2024/2025 | Latest update
, 2 | P a g e | © copyright 2024/2025 | Grade A+
I. Metal detector
II. Ferromagnetic detection system
III. Written screening sheet
IV. Patient gown
a. I, III, IV
b. I, II, III, IV
c. II, III, IV
d. III
✓ ~~> c. II, III, IV
What is the FDA SAR limit for the whole body in first level controlled operating
mode?
a. 8 W/kg for 15 mins
b. 4 W/kg for 15 mins
c. 3 W/kg for 10 mins
d. 7 W/kg for 20 mins
✓ ~~> b. 4 W/kg for 15 mins
Gadolinium contains what kind of magnetism?
Master01 | September, 2024/2025 | Latest update
, 3 | P a g e | © copyright 2024/2025 | Grade A+
a. Diamagnetic
b. Paramagnetic
c. Ferromagnetic
d. Super paramagnetic
✓ ~~> b. Paramagnetic
Which of the following is true of Zone IV? Select all that apply.
a. This area should be monitored by a level 2 MR personnel
b. Should be noted with signage
c. Contain metal detectors for implant identification
d. No unsafe implants may cross the 5-gauss unless the implant is researched
and analyzed for risk
✓ ~~> a, b, d
Where will peripheral nerve stimulation be the strongest?
a. Further away from isocenter in the gantry
b. At the level of the table when it is advanced
c. At isocenter
d. Outside the gantry near the 5 gauss line
Master01 | September, 2024/2025 | Latest update
MRSO: Exam 1 Questions & 100% Correct
Answers
The control room is found where?
a. Zone I
b. Zone II
c. Zone III
d. Zone IV
✓ ~~> C. Zone III
Which of the following describe when a non-ferrous object is repulsed by
static magnetic field?
a. Fourier transformation
b. Lenz's force
c. Ohm's law
d. Larmor equation
✓ ~~> b. Lenz's force
Which of the following are recommended by the ACR Guidance document
in MR safety 2013 in proper scanning of a patient?
Master01 | September, 2024/2025 | Latest update
, 2 | P a g e | © copyright 2024/2025 | Grade A+
I. Metal detector
II. Ferromagnetic detection system
III. Written screening sheet
IV. Patient gown
a. I, III, IV
b. I, II, III, IV
c. II, III, IV
d. III
✓ ~~> c. II, III, IV
What is the FDA SAR limit for the whole body in first level controlled operating
mode?
a. 8 W/kg for 15 mins
b. 4 W/kg for 15 mins
c. 3 W/kg for 10 mins
d. 7 W/kg for 20 mins
✓ ~~> b. 4 W/kg for 15 mins
Gadolinium contains what kind of magnetism?
Master01 | September, 2024/2025 | Latest update
, 3 | P a g e | © copyright 2024/2025 | Grade A+
a. Diamagnetic
b. Paramagnetic
c. Ferromagnetic
d. Super paramagnetic
✓ ~~> b. Paramagnetic
Which of the following is true of Zone IV? Select all that apply.
a. This area should be monitored by a level 2 MR personnel
b. Should be noted with signage
c. Contain metal detectors for implant identification
d. No unsafe implants may cross the 5-gauss unless the implant is researched
and analyzed for risk
✓ ~~> a, b, d
Where will peripheral nerve stimulation be the strongest?
a. Further away from isocenter in the gantry
b. At the level of the table when it is advanced
c. At isocenter
d. Outside the gantry near the 5 gauss line
Master01 | September, 2024/2025 | Latest update
