1303 chapter 1 exam

what is described as the rate of change in velocity over time?

a. acceleration

b. inertia

c. distance

d. force

a. acceleration

what is the SI unit for mass?

a. kilogram

b. pound

c. meter

d. coulomb

a. kilogram

what is potential energy?

a. an objects stored energy

b. an objects velocity

c. an objects acceleration

d. an objects force

a. an objects stored energy

what is the velocity of an object moving 80 m in 5 seconds?

a. 16 m/s

b. 24 m/s

c. 95 m/s

d. 56 m/s

a. 16 m/s

on which day did Roentgen first discover x-radiation?

a. march 14, 1904

b. december 28, 1895

c. august 5, 1898

d. november 8, 1895

d. november 8, 1895

which terms refers to a phosphors ability to emit visible light when stimulated by energy?

a. back scatter

b. attenuation

c. fluorescence

d. ionization

c. fluorescence 

which of the following is a cardinal rule of radiation protection?

a. increase time in the primary beam

b. decrease shielding during fluorscopy

c. increase the number of photons produced

d. increase the distance from the source

d. increase the distance from the source

the property of an object to resist a change in motion is known as what?

a. friction

b. resistance

c. force

d. inertia

d. inertia

what does ALARA mean?

a. always leave a restricted area

b. as low as reasonably achievable

c. all level alert radiation accident

d. as limited as regulations allow

b. as low as reasonably achievable

which derived unit is the product of mass and acceleration of an object?

a. velocity

b. momentum

c. force

d. weight

c. force

exposure, dose, and dose equivalent are:

a. physical quantities

b. derived quantities

c. radiologic quantities

d. fundamental quantites

c. radiologic quantities

force x distance is the formula to determine:

a. work

b. power

c. force

d. momentum

a. work

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

a. 1 m/s²

b. 15 m/s²

c. 10 m/s²

d. 5 m/s^2.

d. 5 m/s²

how much force is needed to move a 30-kg piece of equipment at a rate of 3 m/s²?

a. 10 N

b. 90 N

c. 30 N

d. 60 N

b. 90 N

what is the velocity of a baseball that travels 15 meters in 2 seconds?

a. 7.5 J

b. 7.5 m/s

c. 7.5 m/s²

d. 7.5 N

b. 7.5 m/s

electromagnetic, chemical, electric, and thermal are all examples of which of the following?

a. equipment

b. waves

c. energy

d. force

c. energy

the SI radiologic unit that addresses the different biological effects of different types of ionizing radiation is the:

a. roentgen

b. sievert

c. gray

d. rad

b. sievert

the ____ is the SI unit equivalent to the Curie which measures radioactivity.

a. sievert

b. gray

c. becquerel

d. roentgen

c. becquerel

which of the following is an expression of the relative risk to humans of exposure to ionizing radiation?

a. absorbed dose

b. effective dose

c. tissue weighting

d. dose equivalent

b. effective dose

which of the following consists of lead filtration shutters?

a. tube stand

b. x-ray tube

c. collimator

d. anode

c. collimator

the negative electrodes of the x-ray tube is on the:

a. transformer

b. anode

c. cathode

d. diode

c. cathode

in a typical radiographic room, where is the anode located?

a. in the middle of the table

b. away from the table

c. over the head end of the table

d. over the foot end of the table

c. over the head and end of the table

to help dissipate the heat produced during x-ray production, what fills the x-ray tube housing?

a. oil

b. air

c. water

d. refigerant

a. oil

which of the following exposure factors must be selected on the console which increases the quality and penetration of the x-ray beam?

a. kVp

b. focal spot

c. time

d. mAs

a. kVp

upright radiographic examinations can easily be done with which piece of equipment?

a. wall unit

b. table bucky

c. floating table 

d. fluorscope

a. wall unit