Chapter 1 Assignment

Question 1

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

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

Answer 1

d.) 10 m/s

Question 2

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

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

Answer 2

b.) pound

Question 3

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

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

Answer 3

c.) ALARA

Question 4

How much force is needed to move a 30 kg piece of equipment at a rate of 3 m/s^2?

a.) 10N
b.) 90N
c.) 60N
d.) 60J

Answer 4

b.) 90N

Question 5

Decreasing beam restriction has no affect on patient dose.

a.) true
b.) false

Answer 5

b.) false

Question 6

Another name for a severe radiation burn is acute radiodermititis.

a.) true
b.) false

Answer 6

a.) true

Question 7

How many seconds are in 30 minutes?

Answer 7

1,800 seconds

Question 8

What is the velocity of a javelin that travels 45 meters in 3 seconds?

a.) 67 m/s
b.) 135 m/s
c.) 15 m/s
d.) .067 m/s

Answer 8

c.) 15 m/s

Question 9

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

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

Answer 9

a.) 500J

Question 10

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

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

Answer 10

d.) potential energy

Question 11

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

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

Answer 11

d.) meter

Question 12

The metric system is also known as the:

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

Answer 12

b.) system international (SI)

Question 13

Velocity is a measure of what?

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

Answer 13

a.) speed

Question 14

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

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

Answer 14

b.) time

Question 15

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

a.) true
b.) false

Answer 15

b.) false

Question 16

REM is the unit used for absorbed dose.

a.) true
b.) false

Answer 16

b.) false

Question 17

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

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

Answer 17

d.) matter

Question 18

If 240 J of work is done in 1 minute, how much power is consumed?

a.) 4kg-m/s
b.) 4 m/s
c.) 4 J
d.) 4 W

Answer 18

d.) 4 W

Question 19

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

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

Answer 19

d.) 20 kg

Question 20

The purpose of the mirror inside the collimator is to:

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

Answer 20

a.) reflect the light source

Question 21

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

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

Answer 21

d.) 5 m/s^2

Question 22

Choose all that apply:

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

Answer 22

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

Question 23

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

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

Answer 23

b.) oil

Question 24

How much work is done if a force of 20 N is applied to move a patient 100 meters?

a.) 5 J
b.) 200 W
c.) 2000 J
d.) .5 J

Answer 24

c.) 2000 J

Question 25

Gray is the SI equivilent of RAD.

a.) true
b.) false

Answer 25

a.) true

Question 26

In a typical radiographic room, the anode is located

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

Answer 26

d.) over the head end of the table