1 | P a g e | © copyright 2024/2025 | Grade A+
MRSO - Static Field - Module 2 Questions &
100% Correct Answers
Static field metrics
✓ ~~> 1T = 10,000G
(0.5mT = 5G)
Who published guidelines titled "Criteria for Significant Risk" that specifies what
qualifies as significant risk of exposure to magnetic field associated with MRI.
✓ ~~> FDA
FDA guidelines state EXPOSURE to a static field that does not pose a
significant risk is:
✓ ~~> Limited to 8T for adults and infants > 1 month
Limited to 4T for infants < 1 month
Forces related to static field
✓ ~~> -Torque/rotation
-Translation/Displacement
-Lenz
Master01 | September, 2024/2025 | Latest update
, 2 | P a g e | © copyright 2024/2025 | Grade A+
magnetic saturation
✓ ~~> The point where an increase in magnetic force produces no
further magnetic effect in a magnetic material. .
magnetic saturation depends on:
✓ ~~> -material
-size and shape
-temperature
Most ferromagnetic items are going to saturate at:
✓ ~~> 0.3T - 2.2T
Torque
✓ ~~> force exerted on elongated ferromagnetic object so it aligns with
the direction of the magnetic field
Torque will cause an item to align in the _____________ axis in a horizontal field
magnet.
✓ ~~> z
Master01 | September, 2024/2025 | Latest update
, 3 | P a g e | © copyright 2024/2025 | Grade A+
Torque will cause an item to align in the _____________ axis in a vertical field
magnet.
✓ ~~> y
Torque is dependent on:
✓ ~~> -length (longer=greater)
-shape (elongated>sperical)
-texture (soft/flexible<hard)(leads/wires<plate)
-location in magnet (greatest at isocenter)
Torque is greatest at
✓ ~~> isocenter
Translational / Displacement (missile effect)
✓ ~~> attractive force on a ferromagnetic object in a spatial gradient
magnetic field
Translational force increases when
✓ ~~> the field change over distance increases (dB/dx)
Spatial gradient magnetic fields are expressed in
Master01 | September, 2024/2025 | Latest update
MRSO - Static Field - Module 2 Questions &
100% Correct Answers
Static field metrics
✓ ~~> 1T = 10,000G
(0.5mT = 5G)
Who published guidelines titled "Criteria for Significant Risk" that specifies what
qualifies as significant risk of exposure to magnetic field associated with MRI.
✓ ~~> FDA
FDA guidelines state EXPOSURE to a static field that does not pose a
significant risk is:
✓ ~~> Limited to 8T for adults and infants > 1 month
Limited to 4T for infants < 1 month
Forces related to static field
✓ ~~> -Torque/rotation
-Translation/Displacement
-Lenz
Master01 | September, 2024/2025 | Latest update
, 2 | P a g e | © copyright 2024/2025 | Grade A+
magnetic saturation
✓ ~~> The point where an increase in magnetic force produces no
further magnetic effect in a magnetic material. .
magnetic saturation depends on:
✓ ~~> -material
-size and shape
-temperature
Most ferromagnetic items are going to saturate at:
✓ ~~> 0.3T - 2.2T
Torque
✓ ~~> force exerted on elongated ferromagnetic object so it aligns with
the direction of the magnetic field
Torque will cause an item to align in the _____________ axis in a horizontal field
magnet.
✓ ~~> z
Master01 | September, 2024/2025 | Latest update
, 3 | P a g e | © copyright 2024/2025 | Grade A+
Torque will cause an item to align in the _____________ axis in a vertical field
magnet.
✓ ~~> y
Torque is dependent on:
✓ ~~> -length (longer=greater)
-shape (elongated>sperical)
-texture (soft/flexible<hard)(leads/wires<plate)
-location in magnet (greatest at isocenter)
Torque is greatest at
✓ ~~> isocenter
Translational / Displacement (missile effect)
✓ ~~> attractive force on a ferromagnetic object in a spatial gradient
magnetic field
Translational force increases when
✓ ~~> the field change over distance increases (dB/dx)
Spatial gradient magnetic fields are expressed in
Master01 | September, 2024/2025 | Latest update
