ARMRIT REVIEW PACK 2026 FULLY SOLVED
QUESTION SET
◉ in a loop of conductor in which an electric current is introduced
and maintained a magnetic field will be produced in the center
perpendicular to the flow of the electric current. this is called:
A) Damadian's Law
B) Gabillard's Law
C) Larmor's Law
D) Faraday's Law.
Answer: Faraday's Law
◉ which type of MRI magnet has attainable field strengths of 0.35T
to 3T for clinical use in the USA and higher strengths elsewhere and
in research?
A) superconductive
B) resistive
C) permanent.
Answer: superconductive
◉ the process of relaxation begins when:
A) B0 is turned off
,B) B1 is turned on
C) B1 is turned off
D) B0 is turned on.
Answer: B1 is turned off
◉ a sinewave is a symbol used to measure electromagnetic energy. A
sinewave's 2 components of measurement are:
A) transmit and receive
B) wavelength and frequency
C) stimulation and relaxation
D) gauss and tesla.
Answer: wavelength and frequency
◉ magnetic fields have direction which are usually designated as
north and south therefore magnetic fields are described as:
A) vectors
B) dipoles
C) protons
D) axes.
Answer: dipoles
,◉ at any one time, human body tissue, in general, is made up of 50-
90% of what substance
A) c13
B) NA 23
C) H2O
D) H.
Answer: H
◉ which of the following is the larmor equation?
A) B0 = y + Wo
B) B0 = y x Wo
C) y = B0 - Wo
D) Wo = y x B0.
Answer: Wo = y x B0
◉ the mechanism of T2 contrast enhancement agents is to
A) increase T2 relaxation time, therefore producing low signal
B) decrease T2 relaxation time, therefore producing low singal
C) Increase T2 relaxation time, therefore producing high signal
D) decrease T2 relaxation time, therefore producing high signal.
Answer: Decrease T2 relaxation time, therefore producing low signal
, ◉ which type of MRi magnet requires cryogen to cool magnetic coils
to 4 degrees kelvin?
A) superconductive
B) resistive
C) permanent.
Answer: superconductive
◉ a time constant that characterizes the fast rate of transverse
magnetization because of the inhomogeneities of the main magnetic
field is:
A) T2*
B) T1
C) TE
D) TR.
Answer: T2*
◉ as the NMV precesses within the transverse plane, it induces an
electrical curreny in a:
A) gradient coil
B) shim coil
C) B0
D) radio frequency coil.
Answer: radio frequency coil
QUESTION SET
◉ in a loop of conductor in which an electric current is introduced
and maintained a magnetic field will be produced in the center
perpendicular to the flow of the electric current. this is called:
A) Damadian's Law
B) Gabillard's Law
C) Larmor's Law
D) Faraday's Law.
Answer: Faraday's Law
◉ which type of MRI magnet has attainable field strengths of 0.35T
to 3T for clinical use in the USA and higher strengths elsewhere and
in research?
A) superconductive
B) resistive
C) permanent.
Answer: superconductive
◉ the process of relaxation begins when:
A) B0 is turned off
,B) B1 is turned on
C) B1 is turned off
D) B0 is turned on.
Answer: B1 is turned off
◉ a sinewave is a symbol used to measure electromagnetic energy. A
sinewave's 2 components of measurement are:
A) transmit and receive
B) wavelength and frequency
C) stimulation and relaxation
D) gauss and tesla.
Answer: wavelength and frequency
◉ magnetic fields have direction which are usually designated as
north and south therefore magnetic fields are described as:
A) vectors
B) dipoles
C) protons
D) axes.
Answer: dipoles
,◉ at any one time, human body tissue, in general, is made up of 50-
90% of what substance
A) c13
B) NA 23
C) H2O
D) H.
Answer: H
◉ which of the following is the larmor equation?
A) B0 = y + Wo
B) B0 = y x Wo
C) y = B0 - Wo
D) Wo = y x B0.
Answer: Wo = y x B0
◉ the mechanism of T2 contrast enhancement agents is to
A) increase T2 relaxation time, therefore producing low signal
B) decrease T2 relaxation time, therefore producing low singal
C) Increase T2 relaxation time, therefore producing high signal
D) decrease T2 relaxation time, therefore producing high signal.
Answer: Decrease T2 relaxation time, therefore producing low signal
, ◉ which type of MRi magnet requires cryogen to cool magnetic coils
to 4 degrees kelvin?
A) superconductive
B) resistive
C) permanent.
Answer: superconductive
◉ a time constant that characterizes the fast rate of transverse
magnetization because of the inhomogeneities of the main magnetic
field is:
A) T2*
B) T1
C) TE
D) TR.
Answer: T2*
◉ as the NMV precesses within the transverse plane, it induces an
electrical curreny in a:
A) gradient coil
B) shim coil
C) B0
D) radio frequency coil.
Answer: radio frequency coil
