quiz!

Question 1

what doubles exposure and density?

Answer 1

mA

Question 2

where do the electrons come from?

Answer 2

tungsten filament (cathode)

Question 3

when do you not wear gloves?

Answer 3

transferring and getting cotton out of drawer

Question 4

how do you get rid of low energy rays?

Answer 4

aluminum

Question 5

what is most of the xray transferred as?

Answer 5

heat

Question 6

high contrast is?

Answer 6

low kvp

Question 7

if you go from 16 to 8, how much less exposure do you need?

Answer 7

4 less exposure

Question 8

if proper sterilization precautions are not taken, cross contamination can occur when ?

Answer 8

all the above

Question 9

down-step transformer

Answer 9

from electron cloud around cathode

Question 10

lateral

Answer 10

PSP

Question 11

highest spatial resolution

Answer 11

film

Question 12

similar contrast to each other

Answer 12

film and digitial CCD

Question 13

what results in a low contrast radiograph?

Answer 13

comptom scattering

Question 14

which has the lowest contast?

Answer 14

PSP

Question 15

what does NOT help with a pt with a strong gag reflex?

Answer 15

start with posterior periapical

Question 16

what does it mean if there is a radioluecent circle in the bottom left of x-ray?

Answer 16

PSP was backward

Question 17

what will give you the best radiograph?

Answer 17

long beam, small focal point, paralleling technique

Question 18

which one is an example of indirect digital?

Answer 18

PSP

Question 19

if you don’t follow safety guidelines, could it prevent you from getting your license?

Answer 19

yes

Question 20

what do the cardboard cover and plastic around the PSP do?

Answer 20

prevents light and contamination

Question 21

the only one that does quality?

Answer 21

kVp

Question 22

what is FALSE about why tungsten is preferred?

Answer 22

small mass number

Question 23

what’s true about x-rays?

Answer 23

electromagnetic radiation, diverge in straight lines

Question 24

which has the highest absorption?

Answer 24

amalgam

Question 25

what does not affect penetrability?

Answer 25

time

Question 26

latent image

Answer 26

visible image after chemical processing

Question 27

what should your computer be set to?

Answer 27

32 bits

Question 28

rinn instruments

Answer 28

semicritical and must be heat sterilized

Question 29

what helps with teeth overlap?

Answer 29

image receptor parallel to lingual surfaces of teeth

Question 30

bit depth correlates with ?

Answer 30

computer contrast

Question 31

an 8 bit will have ____ than 12 bit

Answer 31

less contrast

Question 32

picture with beam in downward position?

Answer 32

positive BID

Question 33

for maxillary teeth, how do you position the bite block?

Answer 33

outside bite block

Question 34

for mandibular teeth, how do you position the bite block?

Answer 34

toward the middle

Question 35

what to do when torus is present?

Answer 35

place receptor on far side of torus

Question 36

if you want to increase density?

Answer 36

increase mA | decrease kvp

Question 37

PA has to have?

Answer 37

2 mm showing apical to apex of root

Question 38

what does it mean if you can see mandible?

Answer 38

excessive vertical