1|Page
ASMIRT- MRI ACCREDITATION EXAM TEST BANK
NEWEST 2026 ACTUAL VERIFIED EXAM WITH
COMPLETE QUESTIONS AND CORRECT DETAILED
ANSWERS (100% VERIFIED ANSWERS) |ALREADY
GRADED A+| ||NEWEST EXAM!!!||
Magnetism can be defined as the ability of certain
substances to attract: - Answer-Iron, Cobalt, Nickel
The components of the Gyro-magnetic ratio are: - Answer-
Magnetic moment to angular momentum
Which type of electromagnetic coils produce smaller
magnetic field which allow spatial localization to be
performed? - Answer-Gradient coils
T2 is the measurement of time for the transverse
component of the net magnetization vector to decrease
what percentage of its maximum value after the
application of a 90 degree radio frequency pulse - Answer-
37%
The NMV is rotated to the physical negative Z axis by
applying a...? - Answer-C)180 pulse
,2|Page
Increasing which parameter is considered the "best"
technique for improving image quality? - Answer-C)NEX
Studies have concluded that static magnetic fields up to
what tesla produce no substantial harmful biological
effects. - Answer-C)2.0
Tissues that have low (short) relaxation times have: -
Answer-Higher relaxation rates
Nuclei in their natural enviroment ( in the absence of a
significant magnetic field) are aligned... - Answer-
Randomly
Following the injection of a gadolinium enhancement
agent, the pulse sequence most commonly employed is
a... - Answer-C)T1 weighted
Employing a pulse sequence with a long TR & a long TE
will result in tissues with a short T2 value appearing WHAT
& tissues with a long T2 appearing WHAT on the resultant
image. - Answer-D)Dark/bright
,3|Page
Which gradient axis direction is typically (for educational
purposes) designated as the slice selection gradient? -
Answer-C)Logical Z gradient
Electromagnetic coils placed strategically to contain the
fringe fields. - Answer-2)Active shielding
1 milliliter of H2O contains how many hydrogen protons? -
Answer-6 ×10 to th 23power
Which of the following statements is true for gadolinium
MRI IV enhancement products? - Answer-B) produces
randomly fluctuating magnetic fields in its immediate
enviroment.
The maximum exposure to radiofrequency in 1 gram of
tissue is: - Answer-D) a maximum spatial peak of 8 w/kg
Currently, patients & personnel arr exluded from exposure
to MRI for the 1st trimester of pregnancy. - Answer-True
, 4|Page
The maximum exposure to radio frequency averaged over
the head is: - Answer-B)No more than 3.2 w/kg
The recieve signal amplitude for a pixel usually depends
on thr substance's... - Answer-A) T1, T2 , proton density
Small magnetic field intoduced to the hydrogen protons in
order to cause them yo move from the low energy state to
the high energy state is.. - Answer-C) RF pulse
at any one time, human body tissue, in general, is made
up of 50%-90% of what substance? - Answer-Hydrogen.
once the patient's area of interest is placed in the main
magnetic field of the MRI system, the hydrogen protons
will... - Answer-precess parallel to B sub zero
In most tissues hydrogen concentration varies - Answer-
10%- to 15%
T1 is the measurement of time for the longitudinal
component of the net magnetization vector to recover
ASMIRT- MRI ACCREDITATION EXAM TEST BANK
NEWEST 2026 ACTUAL VERIFIED EXAM WITH
COMPLETE QUESTIONS AND CORRECT DETAILED
ANSWERS (100% VERIFIED ANSWERS) |ALREADY
GRADED A+| ||NEWEST EXAM!!!||
Magnetism can be defined as the ability of certain
substances to attract: - Answer-Iron, Cobalt, Nickel
The components of the Gyro-magnetic ratio are: - Answer-
Magnetic moment to angular momentum
Which type of electromagnetic coils produce smaller
magnetic field which allow spatial localization to be
performed? - Answer-Gradient coils
T2 is the measurement of time for the transverse
component of the net magnetization vector to decrease
what percentage of its maximum value after the
application of a 90 degree radio frequency pulse - Answer-
37%
The NMV is rotated to the physical negative Z axis by
applying a...? - Answer-C)180 pulse
,2|Page
Increasing which parameter is considered the "best"
technique for improving image quality? - Answer-C)NEX
Studies have concluded that static magnetic fields up to
what tesla produce no substantial harmful biological
effects. - Answer-C)2.0
Tissues that have low (short) relaxation times have: -
Answer-Higher relaxation rates
Nuclei in their natural enviroment ( in the absence of a
significant magnetic field) are aligned... - Answer-
Randomly
Following the injection of a gadolinium enhancement
agent, the pulse sequence most commonly employed is
a... - Answer-C)T1 weighted
Employing a pulse sequence with a long TR & a long TE
will result in tissues with a short T2 value appearing WHAT
& tissues with a long T2 appearing WHAT on the resultant
image. - Answer-D)Dark/bright
,3|Page
Which gradient axis direction is typically (for educational
purposes) designated as the slice selection gradient? -
Answer-C)Logical Z gradient
Electromagnetic coils placed strategically to contain the
fringe fields. - Answer-2)Active shielding
1 milliliter of H2O contains how many hydrogen protons? -
Answer-6 ×10 to th 23power
Which of the following statements is true for gadolinium
MRI IV enhancement products? - Answer-B) produces
randomly fluctuating magnetic fields in its immediate
enviroment.
The maximum exposure to radiofrequency in 1 gram of
tissue is: - Answer-D) a maximum spatial peak of 8 w/kg
Currently, patients & personnel arr exluded from exposure
to MRI for the 1st trimester of pregnancy. - Answer-True
, 4|Page
The maximum exposure to radio frequency averaged over
the head is: - Answer-B)No more than 3.2 w/kg
The recieve signal amplitude for a pixel usually depends
on thr substance's... - Answer-A) T1, T2 , proton density
Small magnetic field intoduced to the hydrogen protons in
order to cause them yo move from the low energy state to
the high energy state is.. - Answer-C) RF pulse
at any one time, human body tissue, in general, is made
up of 50%-90% of what substance? - Answer-Hydrogen.
once the patient's area of interest is placed in the main
magnetic field of the MRI system, the hydrogen protons
will... - Answer-precess parallel to B sub zero
In most tissues hydrogen concentration varies - Answer-
10%- to 15%
T1 is the measurement of time for the longitudinal
component of the net magnetization vector to recover
