Radiography

Question 1

Which of the following faults would result in the final film appearing too dark?
A - Developer solution that is too hot
B - Developer that is contaminated by fixer
C - Shorter exposure time
D - Shorter development time
E - Thick patient tissues

Answer 1

A - developer solution that is too hot

Question 2

Which of the following reduces the amount of radiation exposure the greatest?
A - The size of film
B - The use of a film holder
C - The use of F-speed rather than D-speed films
D - A rectangular collimator
E - A lead apron

Answer 2

D - A rectangular collimator

Question 3

Under IRMER 2000, which of the following best describes the 3 roles that a dental practitioner is automatically entitled to take on?
A - Medical physics expert, operator, referrer
B - Medical physics expert, practitioner, radiation protection advisor
C - Radiation protection advisor, referrer, practitioner
D - Radiation protection advisor, operator, practitioner
E - Referrer, practitioner, operator

Answer 3

E - referrer, practitioner, operator

Question 4

what is the average total effective dose of radiation exposure per annum in the uk?
A - 2700 uSv
B - 30000 mSV
C - 2000 uSv
D - 2000 mSv
E - 10000 uSv

Answer 4

A - 2700 uSv

Question 5

Which metal is commonly used to produce electrons in an x-ray machine?
A - iron
B - molybdenum
C - Lead
D - copper
E - tungsten

Answer 5

E - tungsten

Question 6

What is the definition of attenuation?
A -