CAMRT ACTUAL EXAM PAPER 2026
QUESTIONS WITH SOLUTIONS GRADED A+
●● 90% of man made radiation to the population is related to? Answer:
Medical Radiography and Dental
●● For each peak xray voltage, what lead equivalent is required?
100kV or less (o-100)
Between 101kV-149kV
150kV or greater (150+) Answer: 0-100kV = 0.25mm of lead
Greater than 100kV but less then 150kV = 0.35mm of lead
150kV or greater = 0.50mm of lead
●● What protective equipment is required during interventional
procedures Answer: Full wrap around protective gowns of 0.50mm pb in
the front panels and 0.25mm pb in the back panels
Thyroid shields with an equivalent of 0.50mm of pb
,Lead drapes/curtains mounted to II of 0.25mm of pb at 100kv
●● What lead equivalent must protective gloves/ gauntlets possess?
Answer: 0.25mm of pb
●● What lead equivalent must ceiling mounted lead screens and
moveable shields provide? Answer: 0.50mm of pb
●● What are the annual radiation dose limits for radiation workers?
Answer: Whole body= 20mSv
Lens of eye= 150mSv
Skin = 500mSv
Hands = 150mSv
All other organs = 500mSv
For pregnant women an effective dose of 4 mSv must be applied for the
remainder of the pregnancy from all sources
●● What are the annual radiation dose limits to members of the public?
Answer: Whole body = 1mSv
Lens of the eye= 15mSv
Skin = 50mSv
Hands = 50mSv
,All other organs = 50mSv
*these also apply for students*
●● What are primary protective barriers? Give examples Answer:
Primary barriers provide shielding from the direct xray beam. Such as,
the walls and floor where the tube can be directed
-The wall behind the wall bucky
-Floor under the table
●● What are secondary barriers and give examples Answer: Provide
shielding against both leakage and scattered radiation. Walls that the
primary beam is not directed towards and the ceiling are secondary
barriers.
The control booth is also a secondary barrier, the primary beam should
never be directed towards it.
●● What should the focal spot to skin distance be for:
-Mobile equipment
-Stationary equipment
-Radioscopic equipment Answer: Must not be less than:
, -Mobile: 30cm
-Stationary: 38cm
-Radioscopic: 20cm (designed for special procedures that would be
impossible at 30cm or 38cm)
●● What are the maximum air kerma rates for radioscopic equipment:
-with automatic intensity control
-without AIC Answer: Not equipped with AIC: 50mGy/min
With AIC: 100mGy/min
●● The air kerma rate must not exceed ___ from scattered radiation of
radioscopic equipment Answer: 2 mGy/h
●● HVL of Aluminum for given tube voltages? (70kV-150kV) Answer:
70: 2.5mm
80: 2.9mm
90: 3.2mm
100: 3.6mm
110: 3.9mm
120: 4.3mm
QUESTIONS WITH SOLUTIONS GRADED A+
●● 90% of man made radiation to the population is related to? Answer:
Medical Radiography and Dental
●● For each peak xray voltage, what lead equivalent is required?
100kV or less (o-100)
Between 101kV-149kV
150kV or greater (150+) Answer: 0-100kV = 0.25mm of lead
Greater than 100kV but less then 150kV = 0.35mm of lead
150kV or greater = 0.50mm of lead
●● What protective equipment is required during interventional
procedures Answer: Full wrap around protective gowns of 0.50mm pb in
the front panels and 0.25mm pb in the back panels
Thyroid shields with an equivalent of 0.50mm of pb
,Lead drapes/curtains mounted to II of 0.25mm of pb at 100kv
●● What lead equivalent must protective gloves/ gauntlets possess?
Answer: 0.25mm of pb
●● What lead equivalent must ceiling mounted lead screens and
moveable shields provide? Answer: 0.50mm of pb
●● What are the annual radiation dose limits for radiation workers?
Answer: Whole body= 20mSv
Lens of eye= 150mSv
Skin = 500mSv
Hands = 150mSv
All other organs = 500mSv
For pregnant women an effective dose of 4 mSv must be applied for the
remainder of the pregnancy from all sources
●● What are the annual radiation dose limits to members of the public?
Answer: Whole body = 1mSv
Lens of the eye= 15mSv
Skin = 50mSv
Hands = 50mSv
,All other organs = 50mSv
*these also apply for students*
●● What are primary protective barriers? Give examples Answer:
Primary barriers provide shielding from the direct xray beam. Such as,
the walls and floor where the tube can be directed
-The wall behind the wall bucky
-Floor under the table
●● What are secondary barriers and give examples Answer: Provide
shielding against both leakage and scattered radiation. Walls that the
primary beam is not directed towards and the ceiling are secondary
barriers.
The control booth is also a secondary barrier, the primary beam should
never be directed towards it.
●● What should the focal spot to skin distance be for:
-Mobile equipment
-Stationary equipment
-Radioscopic equipment Answer: Must not be less than:
, -Mobile: 30cm
-Stationary: 38cm
-Radioscopic: 20cm (designed for special procedures that would be
impossible at 30cm or 38cm)
●● What are the maximum air kerma rates for radioscopic equipment:
-with automatic intensity control
-without AIC Answer: Not equipped with AIC: 50mGy/min
With AIC: 100mGy/min
●● The air kerma rate must not exceed ___ from scattered radiation of
radioscopic equipment Answer: 2 mGy/h
●● HVL of Aluminum for given tube voltages? (70kV-150kV) Answer:
70: 2.5mm
80: 2.9mm
90: 3.2mm
100: 3.6mm
110: 3.9mm
120: 4.3mm
