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MRSO EXAM QUESTIONS WIITH 100% VERIFIED ANSWERS
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MRSO EXAM QUESTIONS WIITH 100%VERIFIED ANSWERS
How do magnetic flux lines travel?
A. North to South.
B. South to North.
C. East to West.
D. West to East - Answer: A North to South.
Which of the following could be a safety problem for a patient in a static magnetic
field?
A. Electrically conductive materials.
B. Ferrous objects
C. Magnetic objects
D. All of the options. - ANSWER D. All the options
What do you name an object that retains its magnetic field after leaving a static
magnetic field?
A. Paramagnetic
B: Diamagnetic
C) Ferromagnetic
D. Superparamagnetic - Answer: C. Ferromagnetic.
What direction does a permanent MR unit's vector point?
,A. Horizontal
B. Vertical.
C. Diagonal.
D. Variable: ANSWER B. Vertical
What distinguishes a superconductive MR unit from a resistive MR unit?
A. Cryogen
B. Coils of wire
C. Permanent magnets
D. None of the options - ANSWER A. Cryogen
What is the term used to describe the growing strength of magnetism as we
approach the MR unit?
A. Ferromagnetism
B. Spatial magnetic gradient field.
C. Vector
D. B0 - ANSWER B: Spatial magnetic gradient field
What is responsible for drawing ferrous things to the MR unit?
A. Spatial magnetic gradient fields
B. Strong, homogeneous magnetic fields
C. Gradient coils.
D. Radiofrequency system - ANSWER A. Spatial magnetic gradient fields
,What would happen if we placed a little ferrous object near the isocenter?
A. The item would feel no attraction.
B. The object would be quickly drawn to the bore.
C. The thing would levitate.
D. The object would be repelled by the unit. - ANSWER A: The object would have
no attraction.
Where will the rotational force be strongest?
A. Isocenter
B. Outside the MRI room.
C. At the gantry opening.
D. At the 5 gauss line, ANSWER A. Isocenter
Passive shielding employs which of the following?
A. Coils of wire with electrical current coursing through them.
B. Magnetically conductive materials.
C. Plastic
D. Wood - Answer: B. Magnetically conductive materials
How can we mitigate the hazards related with Lenz's force?
A. There are no hazards linked with Lenz' force.
B. Use a cold compress to minimize heat.
, C. Move rapidly to get the patient out of the scanner.
D. Slowly advance the subject inside the scanner. - ANSWER D. Slowly advance
the patient inside the scanner.
An implant has a deflection of 23 degrees. Is it safe for this patient to have an MRI
under static magnetic fields?
A. Yes
B. Call the manufacturer to determine the conditions.
C. No
D. Not enough information. - Answer A: Yes.
Which of the following stainless steels are non-ferrous?
A. Ferritic
B: Martensitic
C. Austenitic.
D. All are ferrous. ANSWER: C. Austenitic
It is dangerous for a patient to pass the 5 gauss line. How many milliteslas is this?
A. 0.5mT
B. 5mT
C. 50mT
D. ANSWER A: 0.005mT. 0.5mT
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