MRI ARMRIT Exam Questions Version 1/MRI ARMRIT prep Exam Questions and Answers Practice Questions with Solutions Newest | Already Graded A+

MRI ARMRIT Exam Questions Version
1/MRI ARMRIT prep Exam Questions and
Answers Practice Questions with
Solutions Newest | Already Graded A+



Section 1 – MRI Physics Fundamentals (Q1–15)

Q1: Different tissues that have signals that appear similar on an MR image
are described as:

 A) Hypointense
 B) Hyperintense
 C) Isointense
 D) Isodense

REF: ARMRIT Practice Exam 1, Verified Q&A
Answer: C) Isointense

Q2: In a large main magnetic field (Bo), the motion of a hydrogen proton,
described as wobbling like a spinning top, is called:

 A) Resonance
 B) Precession
 C) Frequency
 D) Angular momentum

REF: ARMRIT Practice Exam 1, Verified Q&A
Answer: B) Precession

Q3: Magnetic Resonance Imaging is derived from the process known as:

, A) Magnetic resonance angiography
 B) Magnetic relaxation imaging
 C) Nuclear magnetic resonance
 D) Nuclear resonance imaging

REF: ARMRIT Practice Exam 1, Verified Q&A
Answer: C) Nuclear magnetic resonance

Q4: Once the net magnetization vector (NMV) has moved away from
equilibrium, what happens?

 A) Longitudinal component increases
 B) Transverse component decreases
 C) Longitudinal component stays the same
 D) Transverse component increases

REF: ARMRIT Practice Exam 1, Verified Q&A
Answer: D) Transverse component increases

Q5: In MRI, substances respond to a specific radio frequency known as:

 A) Magnetic frequency
 B) Radio frequency
 C) Resonance frequency
 D) Larmor frequency

Answer: C) Resonance frequency

Q6: What is the gyromagnetic ratio of hydrogen (¹H) protons?

 A) 17.23 MHz
 B) 11.26 MHz
 C) 42.58 MHz
 D) 40.05 MHz

Answer: C) 42.58 MHz

, Q7: Once the patient’s area of interest is placed in the main magnetic field
(Bo), the hydrogen protons will:

 A) Process parallel to B1
 B) Process parallel to Bo
 C) Process orthogonal to Bo
 D) Process randomly in Bo

Answer: B) Process parallel to Bo

Q8: The component Mz is most associated with:

 A) Transverse to Bo; T2 relaxation; transverse magnetization
 B) Anti-parallel to Bo; T2 relaxation; net magnetization
 C) Parallel to Bo; T1 relaxation; longitudinal magnetization
 D) Perpendicular to Bo; T2 decay; FID

Answer: C) Parallel to Bo; T1 relaxation; longitudinal magnetization

Q9: The component Mxy is most associated with:

 A) Parallel to Bo; T1 relaxation; longitudinal relaxation
 B) Transverse to Bo; T2 relaxation; transverse magnetization
 C) Anti-parallel to Bo; T1 relaxation; net magnetization
 D) Parallel to B1; T2 decay; FID

Answer: B) Transverse to Bo; T2 relaxation; transverse magnetization

Q10: The resonance frequency of any substance in a magnetic field can be
calculated by employing the:

 A) Damadian equation
 B) Larmor equation
 C) Faraday equation
 D) Lauterbur equation

Answer: B) Larmor equation

, Q11: In a pulse sequence, transmitting an initial 90° RF pulse will cause the
NMV to:

 A) remain at equilibrium
 B) shift in both size and direction
 C) move to antiparallel
 D) rephase

Answer: B) shift in both size and direction

Q12: T1 is the measurement of time for the longitudinal component (Mz)
to recover ___ of its original value after a 90° RF pulse:

 A) 37%
 B) 63%
 C) 50%
 D) 100%

Answer: B) 63%

Q13: T2 is the measurement of time for the transverse component (Mxy) to
decrease to ___ of its maximum value after a 90° RF pulse:

 A) 63%
 B) 37%
 C) 50%
 D) 0%

Answer: B) 37%

Q14: The T1 process is also known as:

 A) Spin-lattice relaxation
 B) Spin-spin relaxation
 C) Free induction decay
 D) Resonance decay