ARRT MRI EXAM QUESTION BANK 2026
COMPLETE ACTUAL EXAM QUESTIONS WITH
DETAILED ANSWERS | ALREADY GRADED A+ |
GUARANTEED PASS
The readout gradient is usually turned on during the sampling or readout of the
peak echo and also during which other process?
A. Slice orientation selection
B. Slice selection
C. Phase encoding
D. Frequency encoding
E. Transmit bandwidth - ✔✔✔ ANS >>> Frequency encoding
could be used to line the walls and/or floors of the MR magnet
room to reduce the fringe field, and is defined as shielding.
A. Copper; active
B. Steel; active
C. Copper; passive
D. Steel; passive
E. Lead; active - ✔✔✔ ANS >>> Steel; passive
As the number of phase encodings is increased from 256 to 512, SNR (signal to
noise ratio):
,A. Increases
B. Decreases
C. Doubles
D. Does not change
E. Quadruples - ✔✔✔ ANS >>> Decreases
Calculate the available imaging time for a patient with a heart rate of 90
beats/min, trigger window 15% and trigger delay of 80ms.
A. 487 MS
B. 567 MS
C. 667 MS
D. 787 MS - ✔✔✔ ANS >>> 487 MS
Healthcare workers generally practice , which states the "goal is to
do no harm."
A. Confidentiality
B. Beneficence
C. Res Ipsa Loquitor
D. Stare decisis
E. Negligence - ✔✔✔ ANS >>> Beneficence
A magnetic vector possesses attributes of both and .
A. Strength; magnitude
B. Direction; purpose
C. Strength; flow
,D. Magnitude; direction - ✔✔✔ ANS >>> Magnitude; direction
What element in the body is the principal nucleus utilized in clinical MR imaging?
A. Helium
B. Hydrogen
C. Oxygen
D. Calcium - ✔✔✔ ANS >>> Hydrogen
Which of the following best describes an IR sequence?
A. A 180° pulse followed by a 90°/180° combination
B. A 90° pulse followed by a 180° pulse
C. A train of gradient echoes
D. A train of spin echoes - ✔✔✔ ANS >>> A 180° pulse followed by a 90°/180°
combination
Gradient echo sequences requiring high signal from fluid are known as all of the
following EXCEPT:
A. T2* gradient echo
B. Steady-state gradient echo
C. Coherent gradient echo
D. Incoherent gradient echo - ✔✔✔ ANS >>> Incoherent gradient echo
The medial and lateral rectus muscles are located in the:
A. Ears
B. Posterior pelvic region
, C. Proximal calves
D. Eyes
E. Superior shoulder regions
F. Soft tissues of the neck - ✔✔✔ ANS >>> Eyes
Reducing the number of lines filled in k-space will produce an image:
A. With a decrease in spatial resolution
B. With an increase in spatial resolution
C. With a decrease in overall SNR
D. With an increase in overall SNR
E. With a reduced overall scan time
F. B, C and E only
G. A, D and E only - ✔✔✔ ANS >>> A, D and E only
Reducing the number of lines filled in k-space reduces the number of phases
encoding steps, resulting in shorter scan time, an increase in overall SNR, but a
decrease in spatial resolution.
The smallest object that can be resolved in an image acquired with a 24cm FOV
and a 272 x 272 matrix is mm.
A. 0.76mm
B. 0.88mm
C. 0.93mm
D. 1.13mm
COMPLETE ACTUAL EXAM QUESTIONS WITH
DETAILED ANSWERS | ALREADY GRADED A+ |
GUARANTEED PASS
The readout gradient is usually turned on during the sampling or readout of the
peak echo and also during which other process?
A. Slice orientation selection
B. Slice selection
C. Phase encoding
D. Frequency encoding
E. Transmit bandwidth - ✔✔✔ ANS >>> Frequency encoding
could be used to line the walls and/or floors of the MR magnet
room to reduce the fringe field, and is defined as shielding.
A. Copper; active
B. Steel; active
C. Copper; passive
D. Steel; passive
E. Lead; active - ✔✔✔ ANS >>> Steel; passive
As the number of phase encodings is increased from 256 to 512, SNR (signal to
noise ratio):
,A. Increases
B. Decreases
C. Doubles
D. Does not change
E. Quadruples - ✔✔✔ ANS >>> Decreases
Calculate the available imaging time for a patient with a heart rate of 90
beats/min, trigger window 15% and trigger delay of 80ms.
A. 487 MS
B. 567 MS
C. 667 MS
D. 787 MS - ✔✔✔ ANS >>> 487 MS
Healthcare workers generally practice , which states the "goal is to
do no harm."
A. Confidentiality
B. Beneficence
C. Res Ipsa Loquitor
D. Stare decisis
E. Negligence - ✔✔✔ ANS >>> Beneficence
A magnetic vector possesses attributes of both and .
A. Strength; magnitude
B. Direction; purpose
C. Strength; flow
,D. Magnitude; direction - ✔✔✔ ANS >>> Magnitude; direction
What element in the body is the principal nucleus utilized in clinical MR imaging?
A. Helium
B. Hydrogen
C. Oxygen
D. Calcium - ✔✔✔ ANS >>> Hydrogen
Which of the following best describes an IR sequence?
A. A 180° pulse followed by a 90°/180° combination
B. A 90° pulse followed by a 180° pulse
C. A train of gradient echoes
D. A train of spin echoes - ✔✔✔ ANS >>> A 180° pulse followed by a 90°/180°
combination
Gradient echo sequences requiring high signal from fluid are known as all of the
following EXCEPT:
A. T2* gradient echo
B. Steady-state gradient echo
C. Coherent gradient echo
D. Incoherent gradient echo - ✔✔✔ ANS >>> Incoherent gradient echo
The medial and lateral rectus muscles are located in the:
A. Ears
B. Posterior pelvic region
, C. Proximal calves
D. Eyes
E. Superior shoulder regions
F. Soft tissues of the neck - ✔✔✔ ANS >>> Eyes
Reducing the number of lines filled in k-space will produce an image:
A. With a decrease in spatial resolution
B. With an increase in spatial resolution
C. With a decrease in overall SNR
D. With an increase in overall SNR
E. With a reduced overall scan time
F. B, C and E only
G. A, D and E only - ✔✔✔ ANS >>> A, D and E only
Reducing the number of lines filled in k-space reduces the number of phases
encoding steps, resulting in shorter scan time, an increase in overall SNR, but a
decrease in spatial resolution.
The smallest object that can be resolved in an image acquired with a 24cm FOV
and a 272 x 272 matrix is mm.
A. 0.76mm
B. 0.88mm
C. 0.93mm
D. 1.13mm
