Chapter 1 Quiz

Question 1

To help dissipate heat produced during xray production, the xray tube housing is filled with:

a.) air
b.) tungsten
c.) water
d.) oil

Answer 1

d.) oil

Question 2

In the early 1900’s where might you find a fluoroscope apparatus being used for the general public?

a.) clothing store
b.) shoe store
c.) market
d.) apothecary

Answer 2

b.) shoe store

Question 3

1.5 sec = __________ ms

Answer 3

1500 ms

Question 4

Energy in a stored state is:

a.) energy in motion
b.) potential energy
c.) power
d.) kinetic energy

Answer 4

b.) potential energy

Question 5

The tube head assembly consists of

a.) xray tube
b.) collimator
c.) tube stand
d.) all of the above

Answer 5

d.) all of the above

Question 6

500 mA @ ___________ ms = 70 mAs

Answer 6

140 ms

Question 7

Gray is the SI equivalent of RAD.

a.) true
b.) false

Answer 7

a.) true

Question 8

What is the acceleration of a javelin if the inital velocity is 0, the final velocity is 15 m/s and the time of travel is 3 seconds?

a.) 1 m/s
b.) 5 m/s
c.) 10 m/s^2
d.) 5 m/s^2

Answer 8

d.) 5 m/s^2

Question 9

Newtons first law of motion states that unless acted on by an external force, an object at rest does what?

a.) will accelerate very quickly
b.) will move very slowly
c.) will stay at rest
d.) none of the above

Answer 9

c.) will stay at rest

Question 10

In order to reduce occupational dose during a portable radiograph of the chest, the technologist should:

a.) apply lead sheilding over the patients pelvis
b.) stand several feet away from the patient during exposure
c.) stand to the side of the patients bed
d.) apply a grid to the image receptor

Answer 10

b.) stand several feet away from the patient during exposure

Question 11

What is the velocity of a ball that takes 1 1/2 minutes to travel 20 meters?

a.) .067 m/s
b.) 4m/s
c.) 13.3 m/s
d.) 0.22 m/s

Answer 11

d.) 0.22 m/s

Question 12

A person running is an example of which type of energy?

a.) potential
b.) kinetic

Answer 12

b.) kinetic

Question 13

Which of the following is required lead or lead equivalent for a primary barrier in an xray room?

a.) 1/32
b.) 1/3
c.) 1/25
d.) 1/16

Answer 13

d.) 1/16

Question 14

In the SI system the unit of measure for length is:

a.) foot
b.) mile
c.) kilometer
d.) meter

Answer 14

d.) meter

Question 15

mAs controls the __________ of photons in the xray beam.

a.) inertia
b.) quantity
c.) quality
d.) penetrating power

Answer 15

b.) quantity

Question 16

In terms of radiation measurement, which of the following are considered standard, or british units? Choose all that apply

a.) roentgan
b.) coloumb/kilogram
c.) rem
d.) suivert
e.) curie
f.) rad

Answer 16

a.) roentgan
c.) rem
e.) curie
f.) rad

Question 17

Choose all that apply.

a.) xrays travel in straight lines
b.) xrays travel at the speed of light
c.) xrays are affected by electric or magnetic fields
d.) xrays can be focused by a lens

Answer 17

a.) xrays travel in straight lines
b.) xrays travel at the speed of light

Question 18

A floor mounted xray tube stand is best suited for high volume hospitals.

a.) true
b.) false

Answer 18

b.) false

Question 19

A floor mounted xray tube stand is best suited for high volume hospitals.

a.) true
b.) false

Answer 19

b.) false

Question 20

Decreasing beam restriction has no affect on patient dose.

a.) true
b.) false

Answer 20

b.) false

Question 21

500 mA @ _________ s = 70 mAs

Answer 21

0.14s

Question 22

An atomic clock is used to provide an accurate account of which unit of measurement?

a.) the british unit of measure for time
b.) all are correct
c.) the standard unit of measure for time
d.) the system international (SI) unit of measure for time
e.) no correct answer

Answer 22

b.) all are correct

Question 23

The device that restricts the xray beam to the area of interest is the:

a.) crosshair
b.) mirror
c.) tube housing
d.) collimatord

Answer 23

d.) collimator

Question 24

The negative electrode of the xray tube is the:

a.) anode
b.) cathode
c.) diode
d.) canode

Answer 24

b.) cathode

Question 25

Who was thomas edison assistant that eventullay lost his life for his part in xray experimentation?

a.) clarence dally
b.) albert einstein
c.) wilhelm roengtan
d.) henri bacquerel

Answer 25

a.) clarence dally

Question 26

A fluoroscope apparatus is a device that allows dynamic xray examination using xrays and a fluorscope screen.

a.) true
b.) false

Answer 26

a.) true

Question 27

If a person ran 100 meters in 10 seconds, what is their average velocity?

a.) 1000 m/s
b.) 10 m/s
c.) 15 m/s
d.) 90 m/s^2

Answer 27

b.) 10 m/s

Question 28

How much work is done to move a patient 50 meters if a force of 10 N is applied?

a.) 500 J
b.) .2 J
c.) 300 J
d.) 5J

Answer 28

a.) 500J

Question 29

The purpose of the mirror inside the collimator is to:

a.) restrict the xray beam
b.) focus the xray beam
c.) allow the patient to see himself or herself
d.) reflect the light source

Answer 29

d.) reflect the light source

Question 30

The first radiograph produced by DR. roengtan was of:

a.) his assistants hand
b.) his wifes hand
c.) his neighbors dog
d.) his daughters hand

Answer 30

b.) his wifes hand

Question 31

A batter stored on a shelf is an example of what?

a.) stable energy
b.) kinetic energy
c.) inertia
d.) potential energy

Answer 31

d.) potential energy

Question 32

1 inch is equal to how many centimeters?

a.) 2 cm
b.) 2.45 cm
c.) 2.54 cm

Answer 32

c.) 2.54 cm

Question 33

Exposure times for very early radiographs ranged from:

a.) 20 minutes to 2 hours
b.) 1 second to 5 seconds
c.)) 2 hours to 5 hours
d.) 1 minute to 15 minutes

Answer 33

a.) 20 minutes to 2 hours

Question 34

According to the basic principles of radiation protection, a radiograph should minimize what ?

a.) distance
b.) sheilding
c.) time
d.) patient protection

Answer 34

c.) time

Question 35

When were xrays discovered?

Answer 35

November 8, 1895

Question 36

Who discovered xrays?

a.) clarence dally
b.) thomas edison
c.) wilhelm roengtan
d.) albert einstein

Answer 36

c.) wilhelm roengtan

Question 37

Early cathode ray tubes were very effiecent and attributed to minimal patient dose.

a.) true
b.) false

Answer 37

b.) false

Question 38

The speed of light can be quantified as 3 * 10^8 m/s.

a.) true
b.) false

Answer 38

a.) true

Question 39

REM is the unit used for absorbed dose.

a.) true
b.) false

Answer 39

b.) false

Question 40

1 kilohertz is equal to:

a.) 1000000000 hertz
b.) 1000000 hertz
c.) 100 hertz
d.) 1000 hertz

Answer 40

d.) 1000 hertz

Question 41

anything that occupies space, has form, shape, and mass is called:

a.) matter
b.) mass
c.) energy
d.) weight

Answer 41

a.) matter

Question 42

During Dr. Roentgens discovery of x light what is the material that fluoresced when the cathode ray tube was energized?

a.) acrylic paint
b.) barium sulfate
c.) barium platinocyanide
d.) tungsten

Answer 42

c.) barium platinocyanide

Question 43

200 mA @ 0.07s = __________ mAs

Answer 43

14

Question 44

Decreasing beam restriction has no affect on patient dose.

a.) true
b.) false

Answer 44

b.) false