ARMRIT 2026 UPDATED EXAMS TEST PAPER QUESTIONS
AND ANSWERS SURE A+
✔✔_________ occurs when the frequency of the RF pulse matched the frequency of
the precessing nuclei.
A) dephasing
B) resonance
C) relaxation
D) saturation - ✔✔resonance
✔✔T2 is the characteristic time constant for _________.
A) 63% loss of magnetization in the XY plane
B) 37% loss of magnetization in the transverse plane
C) 86% regrowth of transverse magnetization
D) 63% regrowth of longitudinal magnetization - ✔✔37% loss of magnetization in the
transverse plane
✔✔the NMV will generate a stronger MR signal if the alignment is at:
A) 180 degrees
B) 120 degrees
C) 90 degrees
D) 360 degrees - ✔✔90 degrees
✔✔The __________ and ___________ are the terms which indicate the amount the
macroscopic magnetization vector is rotated by RF pulse with respect to the static
magnetic field
A) flip angle/nutration angle
B) T1/T2 relaxation
C) Lannor/resonance frequency
D) Tesla/gauss - ✔✔flip angle/nutration angle
✔✔nuclei having an _________ of nucleons (neutrons and protons) will tend to possess
magnetic properties
A) even number
B) isotropic number
C) excess number
D) odd number - ✔✔odd number
✔✔the tendency of a substance to become magnetized or to distort an applied
magnetic field is ___________.
A) ferromagnetic
B) magnetic susceptibility
C) diamagnetic
D) superconducting - ✔✔magnetic susceptibility
, ✔✔______________ is the uniformity of the static magnetic field, expressed in terms of
PPM (parts per million) over a defined volume.
A) hertz
B) homogeneity
C) shim
D) B0 - ✔✔homogeneity
✔✔____________ is the property of most substances having paired orbital electrons
resulting in these substances being weakly repelled by the applied magnetic field
A) paramagnetic
B) ferromagnetic
C) superparamagetic
D) diamagnetic - ✔✔diamagnetic
✔✔as spin lattice occurs, ___________.
A) the spinning nuclei begin to align randomly
B) the spinning nuclei begin to dephase
C) the precessional frequency of the spinning nuclei begins to increase exponentially
D) the spinning nuclei begin to move out of the XY plane and realign toward the Z axis -
✔✔the spinning nuclei begin to move out of the XY plane and realign toward the Z axis
✔✔___________ occurs when the frequency of the intermittent magnetic field, the RF
pulse, matched the frequency of the precessing nuclei- the nuclei absorbing the energy
of the RF pulse and flipping the nuclei at some alpha angle away from the Z axis and
into the XY plane.
A) saturation
B) resonance
C) dephasing
D) relaxation - ✔✔resonance
✔✔raw data (digitized echoes) is loaded into the array processor in a 2D data
acquisition matrix, commonly referred to as ____________.
A) data acquisition board
B) host interface board
C) matrix memory storage
D) k space - ✔✔k space
✔✔in MR, spatial resolution is determined by _______ & _____________.
A) field strength/receiver coil
B) flip angle/TE
C) slice thickness/pixel size
D) TR/NEX - ✔✔slice thickness/pixel size
AND ANSWERS SURE A+
✔✔_________ occurs when the frequency of the RF pulse matched the frequency of
the precessing nuclei.
A) dephasing
B) resonance
C) relaxation
D) saturation - ✔✔resonance
✔✔T2 is the characteristic time constant for _________.
A) 63% loss of magnetization in the XY plane
B) 37% loss of magnetization in the transverse plane
C) 86% regrowth of transverse magnetization
D) 63% regrowth of longitudinal magnetization - ✔✔37% loss of magnetization in the
transverse plane
✔✔the NMV will generate a stronger MR signal if the alignment is at:
A) 180 degrees
B) 120 degrees
C) 90 degrees
D) 360 degrees - ✔✔90 degrees
✔✔The __________ and ___________ are the terms which indicate the amount the
macroscopic magnetization vector is rotated by RF pulse with respect to the static
magnetic field
A) flip angle/nutration angle
B) T1/T2 relaxation
C) Lannor/resonance frequency
D) Tesla/gauss - ✔✔flip angle/nutration angle
✔✔nuclei having an _________ of nucleons (neutrons and protons) will tend to possess
magnetic properties
A) even number
B) isotropic number
C) excess number
D) odd number - ✔✔odd number
✔✔the tendency of a substance to become magnetized or to distort an applied
magnetic field is ___________.
A) ferromagnetic
B) magnetic susceptibility
C) diamagnetic
D) superconducting - ✔✔magnetic susceptibility
, ✔✔______________ is the uniformity of the static magnetic field, expressed in terms of
PPM (parts per million) over a defined volume.
A) hertz
B) homogeneity
C) shim
D) B0 - ✔✔homogeneity
✔✔____________ is the property of most substances having paired orbital electrons
resulting in these substances being weakly repelled by the applied magnetic field
A) paramagnetic
B) ferromagnetic
C) superparamagetic
D) diamagnetic - ✔✔diamagnetic
✔✔as spin lattice occurs, ___________.
A) the spinning nuclei begin to align randomly
B) the spinning nuclei begin to dephase
C) the precessional frequency of the spinning nuclei begins to increase exponentially
D) the spinning nuclei begin to move out of the XY plane and realign toward the Z axis -
✔✔the spinning nuclei begin to move out of the XY plane and realign toward the Z axis
✔✔___________ occurs when the frequency of the intermittent magnetic field, the RF
pulse, matched the frequency of the precessing nuclei- the nuclei absorbing the energy
of the RF pulse and flipping the nuclei at some alpha angle away from the Z axis and
into the XY plane.
A) saturation
B) resonance
C) dephasing
D) relaxation - ✔✔resonance
✔✔raw data (digitized echoes) is loaded into the array processor in a 2D data
acquisition matrix, commonly referred to as ____________.
A) data acquisition board
B) host interface board
C) matrix memory storage
D) k space - ✔✔k space
✔✔in MR, spatial resolution is determined by _______ & _____________.
A) field strength/receiver coil
B) flip angle/TE
C) slice thickness/pixel size
D) TR/NEX - ✔✔slice thickness/pixel size
