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WorksheetsVNSA8: Introduction to Radiography
Total questions: 15
Worksheet time: 6mins
X-rays are dangerous...
No
Yes
Sometimes
Which of the following is a principle associated with radiation safety?
ALARA
COSHH
HASAWA
IRR
Which of the following is NOT a way to reduce our exposure to x-ray radiation?
Wear protective clothing such as a lead gown
Distance ourselves from the source
Reduce the length of the exposure
Increase the number of x-ray photons in the primary beam
Which of the following would NOT be classed as a clinical sign of ACUTE radiation exposure?
Vomiting
Diarrhoea
Low blood cell counts
Polyuria
What is the maximum permissible dose (MPD) for an adult per year?
5mSv / year
10mSv / year
15mSv / year
20mSv / year
Protective clothing contains lead. What is the MINIMUM acceptable thickness for this lead?
0.15mm
0.25mm
0.35mm
0.45mm
X-rays travel in waves...
True
False
Medical x-rays are:
Short wavelength / low frequency
Short wavelength / high frequency
Long wavelength / low frequency
Long wavelength / high frequency
In relation to atoms...which particles travel in orbits around the nucleus?
Protons
Neutrons
Electrons
Klingons
Which of the following is produced in the HIGHEST QUANTITY when we press the exposure button?
X-ray photons
Electrons
Heat
Kinetic energy
Do you know the correct word for a lack of detail on an x-ray caused by a large focal spot?
Shadowing
Haze
Penumbra
Diffusion
You can set the kV on your x-ray machine. What does this control?
The number of electrons produced
The number of x-ray photons produced
The density of the primary x-ray beam
The penetrating power of the primary beam
You can set the mA on your x-ray machine. What does this control?
The penetrating power of the primary beam
The quantity of electrons produced
How the x-ray photons interact with patient tissues
Which of the following is MOST dense?
Air
Fat
Bone
Metal
What colour will this MOST dense material show up on an x-ray?
White
Dark grey
Pale grey
Black
