
REVISION TEST
Authored by D ALPHONS
Science
University
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15 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
What is the function of the cryogen in an MRI machine?
A) Improve image contrast
B) Cool the gradient coils
C) Maintain superconductivity in the magnet
D) Prevent patient motion
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Which shielding technique is used to prevent RF interference in MRI rooms?
A) Lead shielding
B) Copper shielding (Faraday cage)
C) Iron shielding
D)Water shielding
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Who invented MRI?
Phelps
Wilhelm Conrad Röntgen
Dr. Raymond Vahan Damadian
Thomas Edison
4.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
What is a "quench" in the context of MRI?
A) Loss of image signal
B) Sudden drop in room temperature
C) Sudden loss of superconductivity in the magnet
D) Malfunction of gradient coils
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Can you undergo an MRI scan if you have metallic implants?
Yes
No
Depends on the situation
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
MRI is used to detect the following EXCEPT
Stroke
Brain injury from trauma
Tumors
Moving fluid
7.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
What is the primary gas used as a cryogen in MRI systems?
A) Helium
B) Hydrogen
C) Nitrogen
D) Carbon dioxide
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