ARMRIT CORE 2026 MAIN EXAMS SET QUESTIONS AND
ANSWERS SURE A+
✔✔MRI magnets known for safe, relatively low fringe fields and no electrical
requirements are:
A) superconducting
B) resistive
C) permanent
D) high field
E) vertical field - ✔✔permanent
✔✔which gradient axis direction is typically (for educational purposes) designated as
the slice selection gradient?
A) physical X gradient
B) physical Z gradient
C) logical Z gradient
D) logical Y gradient
E) logical X gradient - ✔✔physical Z gradient
✔✔in spatial localization, phase encoding is performed:
A) after frequency encoding
B) prior to frequency encoding
C) in place of frequency encoding
D) during echo sampling - ✔✔prior to frequency encoding
✔✔if a phase resolution of 256 is desired in conventional spin echo imaging, then the
TR must be repeated how many times?
A) 512
B) 256
C) 192
D) 160
E) 128 - ✔✔256
✔✔one direction in K space represents phase while the other direction represents:
A) intensity
B) contrast
C) resolution
D) frequency
E) slice select - ✔✔frequency
✔✔in conventional spin echo imaging, each line of K space is filled in each:
A) TE period
B) phase encoding period
C) TR period
D) frequency encoding period
, E) TI period - ✔✔TR period
✔✔increasing the FOV will increase the SNR
true or false - ✔✔true
✔✔the gradient that is turned on to sample the echo signal is:
A) phase encoding
B) slice select
C) frequency encoding
D) secondary slice select
E) gradient echo - ✔✔phase encoding
✔✔the actual MRI image, as seen on your operators console monitor, is made up of
A) pixels
B) voxels
C) wessels
D) volume elements
E) all - ✔✔pixels
✔✔a pulse sequence where only 90 degree RF pulses are used is called:
A) spin echo
B) partial flip
C) inversion recovery
D) saturation recovery
E) gradient echo - ✔✔spin echo
✔✔the artifact known as aliasing, wrap around or fold over will always show up in what
gradient direction?
A) frequency encoding
B) slice select
C) phase encoding
D) both frequency and phase encoding
E) All - ✔✔phase encoding
✔✔chemical shift artifacts will show up on the image in what gradient direction?
A) phase encoding
B) frequency encoding
C) slice select
D) phase and slice select
E) none - ✔✔frequency encoding
✔✔in a pulse sequence employing 4 NEX to increase SNR by 100% you would have to
increase the NEX to:
A) 6
ANSWERS SURE A+
✔✔MRI magnets known for safe, relatively low fringe fields and no electrical
requirements are:
A) superconducting
B) resistive
C) permanent
D) high field
E) vertical field - ✔✔permanent
✔✔which gradient axis direction is typically (for educational purposes) designated as
the slice selection gradient?
A) physical X gradient
B) physical Z gradient
C) logical Z gradient
D) logical Y gradient
E) logical X gradient - ✔✔physical Z gradient
✔✔in spatial localization, phase encoding is performed:
A) after frequency encoding
B) prior to frequency encoding
C) in place of frequency encoding
D) during echo sampling - ✔✔prior to frequency encoding
✔✔if a phase resolution of 256 is desired in conventional spin echo imaging, then the
TR must be repeated how many times?
A) 512
B) 256
C) 192
D) 160
E) 128 - ✔✔256
✔✔one direction in K space represents phase while the other direction represents:
A) intensity
B) contrast
C) resolution
D) frequency
E) slice select - ✔✔frequency
✔✔in conventional spin echo imaging, each line of K space is filled in each:
A) TE period
B) phase encoding period
C) TR period
D) frequency encoding period
, E) TI period - ✔✔TR period
✔✔increasing the FOV will increase the SNR
true or false - ✔✔true
✔✔the gradient that is turned on to sample the echo signal is:
A) phase encoding
B) slice select
C) frequency encoding
D) secondary slice select
E) gradient echo - ✔✔phase encoding
✔✔the actual MRI image, as seen on your operators console monitor, is made up of
A) pixels
B) voxels
C) wessels
D) volume elements
E) all - ✔✔pixels
✔✔a pulse sequence where only 90 degree RF pulses are used is called:
A) spin echo
B) partial flip
C) inversion recovery
D) saturation recovery
E) gradient echo - ✔✔spin echo
✔✔the artifact known as aliasing, wrap around or fold over will always show up in what
gradient direction?
A) frequency encoding
B) slice select
C) phase encoding
D) both frequency and phase encoding
E) All - ✔✔phase encoding
✔✔chemical shift artifacts will show up on the image in what gradient direction?
A) phase encoding
B) frequency encoding
C) slice select
D) phase and slice select
E) none - ✔✔frequency encoding
✔✔in a pulse sequence employing 4 NEX to increase SNR by 100% you would have to
increase the NEX to:
A) 6
