1 | P a g e | © copyright 2024/2025 | Grade A+
MRSO: Exam mark Questions & 100%
Correct Answers
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
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
, 2 | P a g e | © copyright 2024/2025 | Grade A+
a. Diamagnetic
b. Paramagnetic
c. Ferromagnetic
d. Super paramagnetic
✓ ~~> b. Paramagnetic
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
✓ ~~> a. Further away from the isocenter in the gantry
What is the name for the direction of the vector of the static magnetic field?
a. Inverse field
b. Equilibrium
c. B0
d. B1
Master01 | September, 2024/2025 | Latest update
, 3 | P a g e | © copyright 2024/2025 | Grade A+
✓ ~~> c. B0
An object that produces a weakly repulsive force in the presence of a strong
magnetic field is called what?
a. Superparamagnetic
b. Ferromagnetic
c. Diamagnetic
d. Paramagnetic
✓ ~~> c. Diamagnetic
The gradient coils are responsible for which of the following? Select all that
apply.
a. Heating
b. Rotational force
c. Translational force
d. Magnetohydrodynamic effect
e. Noise
f. Peripheral nerve stimulation
✓ ~~> e. Noise
f. Peripheral nerve stimulation
Master01 | September, 2024/2025 | Latest update
, 4 | P a g e | © copyright 2024/2025 | Grade A+
Why is magnetic shielding used in an MR unit?
a. To reduce heating
b. To reduce the e-fields
c. To maintain field homogeneity
d. To limit the fringe field
✓ ~~> d. To limit the fringe field
Contrast media will do what to our tissue?
a. Shorten T1 relaxation times
b. Shorten T1 & T2 relaxation times
c. Increase T2 relaxation times and decrease T1 relaxation times
d. Shorten T2 relaxation times
✓ ~~> b. Shorten T1 & T2 relaxation times
As blood flows through a vessel, currents can be induced. The degree of this
is called?
Master01 | September, 2024/2025 | Latest update
MRSO: Exam mark Questions & 100%
Correct Answers
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
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
, 2 | P a g e | © copyright 2024/2025 | Grade A+
a. Diamagnetic
b. Paramagnetic
c. Ferromagnetic
d. Super paramagnetic
✓ ~~> b. Paramagnetic
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
✓ ~~> a. Further away from the isocenter in the gantry
What is the name for the direction of the vector of the static magnetic field?
a. Inverse field
b. Equilibrium
c. B0
d. B1
Master01 | September, 2024/2025 | Latest update
, 3 | P a g e | © copyright 2024/2025 | Grade A+
✓ ~~> c. B0
An object that produces a weakly repulsive force in the presence of a strong
magnetic field is called what?
a. Superparamagnetic
b. Ferromagnetic
c. Diamagnetic
d. Paramagnetic
✓ ~~> c. Diamagnetic
The gradient coils are responsible for which of the following? Select all that
apply.
a. Heating
b. Rotational force
c. Translational force
d. Magnetohydrodynamic effect
e. Noise
f. Peripheral nerve stimulation
✓ ~~> e. Noise
f. Peripheral nerve stimulation
Master01 | September, 2024/2025 | Latest update
, 4 | P a g e | © copyright 2024/2025 | Grade A+
Why is magnetic shielding used in an MR unit?
a. To reduce heating
b. To reduce the e-fields
c. To maintain field homogeneity
d. To limit the fringe field
✓ ~~> d. To limit the fringe field
Contrast media will do what to our tissue?
a. Shorten T1 relaxation times
b. Shorten T1 & T2 relaxation times
c. Increase T2 relaxation times and decrease T1 relaxation times
d. Shorten T2 relaxation times
✓ ~~> b. Shorten T1 & T2 relaxation times
As blood flows through a vessel, currents can be induced. The degree of this
is called?
Master01 | September, 2024/2025 | Latest update
