
Unit 4 Bonus
Quiz by Kristen Wells
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- Q1
SID indicator must be accurate within ________% of the indicated SID
2%
12%
15%
1%
30s - Q2
What set of shutters are mounted as close as possible to the tube window to reduce off-focus or stem radiation (rad. emitted from parts of tube other than focal spot)
2nd set lower shutters
1st set upper shudders
30s - Q3
Exposure reproductivity of mA should be within
+/- 10%
+/- 5%
+/- 8%
+/- 2%
30s - Q4
For fluoroscopy, the total minimum filtration that needs to be installed is what?
1.5 mm Al
5.0 mm Al
2.5 mm Al
30s - Q5
What is the minimum Source-to-end-of-Collimator-Distance for C-Arm Fluoroscopy (Mobile)?
12 "
10"
15"
30s - Q6
What type of barrier is located perpendicular to the line of travel to the x-ray beam?
secondary
primary
30s - Q7
What must the lead be in aprons with the use of 100 kVp?
.5 mm lead
1 mm lead
.25 mm lead
30s - Q8
Standing at what degree will decrease the radiologist or RTs dose?
15 degree
90 degree
75 degree
45 degree
30s - Q9
What describes the weekly radiation use of a diagnostic x-ray unit?
use factor
"On Time"
workload
30s - Q10
Where must the 2nd monitor be worn on a pregnant RT?
Waist level
Collar level
Hanging around neck
30s - Q11
What type of protective shielding is used in recumbent,non-recumbent, AP, oblique, lateral projections; ¯ exp. by 90-95%; Ex. Male & Female Gonads, Breast &Lens
shaped contact shields
shadow shields
clear lead shields
30s - Q12
At what kVp is the air gap technique most effective?
Higher than 90
Lower than 90
30s - Q13
What radiation area is where radiation level is same as background level?
unrestricted area
restricted area
30s - Q14
The radiation area where signs shall be posted at the entrance to any area wherein a person could receive an exposure of 100 mrem or more in one hour is known as?
High radiation area
Radiation area
Very high radiation area
30s - Q15
Radiology equipment has weigh limits.
False
True
30s