MRI PHYSICS EXAM REVIEW 2026
DETAILED QUESTIONS AND SOLVED
SOLUTIONS
◉Which of the zones established by the ACR for safety houses the
actual magnet?
Select one:
a. Zone 1
b. Zone II
c. Zone III
d. Zone IV. Answer: d. Zone IV
◉The term for a sudden boil off of the cryogens causing a rapid loss
in the magnetic field is termed
Select one:
a. shimming
b. ramping down
c. a quench
d. none of the choices. Answer: c. a quench
◉In the typical superconducting magnet, the direction of the
magnetic field is
, Select one:
a. vertical
b. horizontal
c. around the flux
d. variable. Answer: b. horizontal
◉Magnetic field strength can be expressed in units of Tesla (T) or
gauss (G) where:
Select one:
a. 1T = 1G
b. 1T = 10,000G
c. 3T = 0.3G
d. 1.5T = 1,500G. Answer: b. 1T = 10,000G
◉The MRI exclusion zone for patients with pacemakers,
neurostimulators, or metallic implants is at the __________ level.
Select one:
a. 1 gauss
b. 5 gauss
c. 15 gauss
d. 20 gauss. Answer: b. 5 gauss
DETAILED QUESTIONS AND SOLVED
SOLUTIONS
◉Which of the zones established by the ACR for safety houses the
actual magnet?
Select one:
a. Zone 1
b. Zone II
c. Zone III
d. Zone IV. Answer: d. Zone IV
◉The term for a sudden boil off of the cryogens causing a rapid loss
in the magnetic field is termed
Select one:
a. shimming
b. ramping down
c. a quench
d. none of the choices. Answer: c. a quench
◉In the typical superconducting magnet, the direction of the
magnetic field is
, Select one:
a. vertical
b. horizontal
c. around the flux
d. variable. Answer: b. horizontal
◉Magnetic field strength can be expressed in units of Tesla (T) or
gauss (G) where:
Select one:
a. 1T = 1G
b. 1T = 10,000G
c. 3T = 0.3G
d. 1.5T = 1,500G. Answer: b. 1T = 10,000G
◉The MRI exclusion zone for patients with pacemakers,
neurostimulators, or metallic implants is at the __________ level.
Select one:
a. 1 gauss
b. 5 gauss
c. 15 gauss
d. 20 gauss. Answer: b. 5 gauss