Chapter 1 Test

Question 1

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

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

Answer 1

b.) potential energy

Question 2

500 mA @ _________ ms = 70 mAs

Answer 2

140 ms

Question 3

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

a.) kinetic
b.) potential

Answer 3

a.) kinetic

Question 4

Another name for a severe radiation burn is acute radiodermititis.

a.) true
b.) false

Answer 4

a.) true

Question 5

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

a.) columb/kilogram
b.) rem
c.) reontgan
d.) curie
e.) rad
f.) seivert

Answer 5

b.) rem
c.) reongtan
d.) curie
e.) rad

Question 6

The smaller the area of x ray exposure, the lower the patient dose.

a.) true
b.) false

Answer 6

a.) true

Question 7

Which of the following will decrease patient dose?

a.) maximize time
b.) minimize patient protection
c.) minimize distance
d.) maximize distance

Answer 7

d.) maximize distance

Question 8

In einsteins formula, E= mc^2 the c stands for which of the following?

a.) the theory of relativity
b.) mass energy equivalence
c.) acceleration of mass
d.) force
e.) the speed of light

Answer 8

e.) the speed of light

Question 9

Decreasing beam restriction has no affect on patient dose.

a.) true
b.) false

Answer 9

b.) false

Question 10

200 mA @ 0.07 s= __________ mAs

Answer 10

14 mAs

Question 11

Who was Thomas edisons assistant that eventually lost his life for his part in x ray experimentation?

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

Answer 11

a.) clarence dally

Question 12

The negative electrode of the xray tube is the :

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

Answer 12

a.) cathode

Question 13

The tube head assemply consists of:

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

Answer 13

d.) all of the above

Question 14

One of the cardinal principles of radiation protection states that the radiologic technologist should minimize which of the following?

a.) time
b.) shielding
c.) distance
d.) kvp
e.) mas

Answer 14

a.) time

Question 15

Exposure times for very early radiographs ranged from:

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

Answer 15

a.) 20 minutes to 2 hours

Question 16

The first radiograph produced by DR. Roentgen was of

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

Answer 16

a.) his wifes hand

Question 17

There are _________ kilograms in 1 pound.

a.) 2.5
b.) 2.2
c.) 3.2
d.) 1.2

Answer 17

b.) 2.2

Question 18

A meaure of the gravitational force extended on a body is quantified by which unit?

a.) power
b.) kilogram
c.) pound
d.) velocity

Answer 18

c.) pound

Question 19

Which of the following is a primary barrier in an xray room?

a.) the door to the room
b.) the wall behind the tube
c.) the floor below the exam table
d.) the radiographers glass window

Answer 19

c.) the floor below the exam table

Question 20

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

a.) true
b.) false

Answer 20

b.) false

Question 21

Permanently installed equipment consist of units on wheels that cen be taken to a patients bedside.

a.) true
b.) false

Answer 21

b.) false

Question 22

If 20 kg of water freezes, how many kg will the ice weigh?

a.) 20 kg
b.) 10 kg
c.) 3 kg
d.) 5 kg

Answer 22

a.) 20 kg

Question 23

Gray is the SI equivalent of RAD.

a.) true
b.) false

Answer 23

a.) true

Question 24

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

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

Answer 24

a.) meter

Question 25

Electromagnetic, chemical, electrical and thermal are all types of:

a.) ionizing radiation
b.) energy
c.) waves
d.) non ionizing radiation

Answer 25

b.) energy

Question 26

The british system unit of measure for mass is:

a.) ton
b.) gram
c.) pound
d.) kilogram

Answer 26

c.) pound

Question 27

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

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

Answer 27

c.) 1/16

Question 28

The metric system is also known as the:

a.) british system
b.) french system
c.) system international (SI)
d.) system of units (SU)

Answer 28

c.) system international (SI)

Question 29

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

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

Answer 29

c.) all are correct

Question 30

Which of the following are considered fundamental quantities?

a.) velocity, force, power
b.) work, energy, power and force
c.) mass length and time
d.) time, matter and space

Answer 30

c.) mass length and time

Question 31

Heat is produced inside the xray tube in excess due to the fact that x ray production is an ineffiecent process.

a.) true
b.) false

Answer 31

a.) true

Question 32

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

a.) tungsten
b.) barium plantinocyde
c.) acyrlic paint
d.) barium sulfate

Answer 32

b.) barium plantinocyde

Question 33

The purpose of the mirror inside the collimator is to:

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

Answer 33

a.) reflect the light source

Question 34

When screening for pregnancy, routine or elective radiographic exams should be limited to which of the following?

a.) during the onset of menstration
b.) 10 days following the onset of menstration
c.) early trimester
d.) 10 days before the onset of menstration

Answer 34

b.) 10 days following the onset of menstration

Question 35

An example of how xrays were used for entertainment or business gain in a dangerous manner was the:

a.) x ray stove polish
b.) fluoroscopic show fitter
c.) x ray headache tablets
d.) x ray golf balls

Answer 35

b.) fluoroscopic shoe fitter

Question 36

Choose all that apply.

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

Answer 36

c.) xrays travel at the speed of light
d.) xrays travel in straight lines

Question 37

1.5 sec = ________ ms

Answer 37

1500

Question 38

In a typical radiographic room, the anode is located:

a.) over the head end of the table
b.) over the foot end of the table
c.) within the control panel
d.) in the middle of the table

Answer 38

a.) over the head end of the table

Question 39

When the distance between the x ray source and radiographer increases, the effective dose to the radiographer will:

a.) decrease
b.) no chance
c.) increase

Answer 39

a.) decrease

Question 40

Which of the following are considered derived quantities? Choose all that apply.

a.) acceleration
b.) force
c.) velocity
d.) length

Answer 40

a.) acceleration
b.) force
c.) velocity

Question 41

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

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

Answer 41

a.) 1/32

Question 42

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

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

Answer 42

b.) time

Question 43

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

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

Answer 43

b.) shoe store

Question 44

Einsteins formula E=MC^2 demonstrates the relationship between

a.) matter and energy
b.) mass and electromagnetic energy
c.) energy and electricity
d.) electricity and mass

Answer 44

a.) matter and energy

Question 45

Choose all that apply.

a.) xrays travel at the speed of light
b.) xrays are electrically neutral, therefore unaffected by electric or magnetic fields
c.) xrays release small amounts of heat when passing through matter
d.) xrays can ionize matter
e.) xrays travel at half the speed of light

Answer 45

a.) xrays travel at the speed of light
b.) xrays are electrically neutral, therfore unaffected by electric or magnetic fields
c.) xrays release small amounts of heat when passing through matter
d.) xrays can ionize matter

Question 46

Xrays were discovered:

a.) december 8, 1895
b.) december 8, 1805
c.) november 8, 1985
d.) november 8, 1895

Answer 46

d.) november 8, 1895

Question 47

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

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

Answer 47

c.) oil

Question 48

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

a.) true
b.) false

Answer 48

a.) true

Question 49

___________ is the push or pull that changes the motion of the object.

a.) velocity
b.) force
c.) momentum
d.) acceleration

Answer 49

b.) force

Question 50

Radiation with sufficeint energy to detach an electron from an atom describes:

a.) radiation therapy
b.) electromagnetic radiation
c.) ionizing radiation
d.) ion pair

Answer 50

c.) ionizing radiation

Question 51

Energy in a stored state is:

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

Answer 51

a.) potential energy

Question 52

In the SI system, the unit of measure for time is:

a.) second
b.) day
c.) hour
d.) minute

Answer 52

a.) second

Question 53

Which of the following early pioneers developed the fluoroscope?

a.) wilhelm roentgen
b.) alexander bell
c.) william crookes
d.) thomas edison
e.) jj thompson

Answer 53

d.) thomas edison

Question 54

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

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

Answer 54

c.) matter

Question 55

In an xray department you should always strive to follow what important principle?

a.) ARRLA
b.) ARALA
c.) ALARA
d.) AARAL

Answer 55

c.) ALARA

Question 56

Velocity is a measure of what?

a.) inertia
b.) speed
c.) stamina
d.) acceleration

Answer 56

b.) speed

Question 57

The intensity or quantity of radiation diminishes over distance.

a.) true
b.) false

Answer 57

a.) true

Question 58

The property of an object with mass that resists a change in its state of motion is:

a.) inertia
b.) momentum
c.) power
d.) energy

Answer 58

a.) inertia

Question 59

1 inch is equal to how many centimeters?

a.) 2.45 cm
b.) 2 cm
c.) 2.54cm
d.) 2.40 cm

Answer 59

c.) 2.54cm

Question 60

The positive electrode of the xray tube is the:

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

Answer 60

c.) anode

Question 61

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

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

Answer 61

a.) will stay at rest

Question 62

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

a.) true
b.) false

Answer 62

a.) true

Question 63

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

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

Answer 63

c.) collimator

Question 64

Which tube stand configuration is the most versatile design and the most widely used in todays hospital setting?

a.) wall mount
b.) floor ceiling mount
c.) floor mount
d.) ceiling mount

Answer 64

d.) ceiling mount

Question 65

Exposure, dose, and dose equivalent are:

a.) fundamental quantities
b.) derived quantities
c.) specific to SI units
d.) radiologic quantities

Answer 65

d.) radiologic quantities

Question 66

Who discovered xrays?

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

Answer 66

a.) wilhelm roentgen

Question 67

The device is located just under the xray table and holds the image receptor in place is the:

a.) exit assembly
b.) bucky assembly
c.) grid assembly
d.) floating assembly

Answer 67

b.) bucky assembly

Question 68

lead shutters are part of the:

a.) collimator
b.) tube housing
c.) xray tube
d.) tube stand

Answer 68

a.) collimator

Question 69

Xrays have a constant velocity.

a.) true
b.) false

Answer 69

a.) true

Question 70

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

a.) true
b.) false

Answer 70

b.) false

Question 71

A radiographers dosimetry report is expressed in?

a.) mrem
b.) mr
c.) mci
d.) mrad

Answer 71

a.) mrem

Question 72

1 kilohertz (kHz) is equal to:

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

Answer 72

d.) 1000 hertz

Question 73

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

a.) stand several feet away from the patient during the exposure
b.) decrease the exposure time and increase techniques
c.) apply lead sheilding over the patients pelvis
d.) apply a grid to the image receptor

Answer 73

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