1303 chapter 1 quiz

which of the following is the date of the discovery of x-rays?

a. november 5, 1895

b. november 8, 1895

c. november 8, 1885

d. november 5, 1885

b. november 8, 1895

a radiographer’s dosimetry report is expressed in:

a. mSv

b. mBq

c. mGy

d. mC/kg

a. mSv

according to the basic principle of radiation protection, a radiographer should minimize:

a. shielding

b. distance

c. time

d. patient production

c. time

anything that occupies space and has shape or form is:

a. energy

b. mass

c. weight

d. matter

d. matter

which of the following is the radiation intensity that will produce 2.08 × 10⁹ ion pairs in 1 cm³ of air?

a. rad

c. Ci

c. R

d. rem

c. R

what is the work done if 35 N of force is applied to move a patient 0.5 m?

a. 70 J

b. 34.5 J

c. 35.5 J

d. 17.5 J

d. 17.5 J

the curie is an expression of:

a. intensity of radioactive material

b. quantity of radioactive material

c. absorption of radioactive material

d. quality of radioactive materal

b. quantity of radioactive material

x-ray examinations of the lower abdomen and pelvis of women in reproductive years should be limited:

a. the time before menstruation

b. 15 days before or after the onset of menstruation

c. the 10 days before the onset of menstruation

d. the 10 days after the onset of menstruation

d. the 10 days after the onset of menstruation

what is the power used if 2000 J of work is applied for 5 seconds?

a. 10,000 W

b. 400 W

c. 1995 W

d. 2005 W

b. 400 W

what is the velocity of a car if it travels 1000 meters in 4 seconds?

a. 250 m/s

b. 1996 m/s

c. 4000 m/s

d. 1004 m/s

a. 250 m/s

how is energy defined?

a. a force exerted by a body

b. the ability to do work

c. a quantity of matter

d. a degree of gravity

b. the ability to do work

what was the device with which Roentgen discovered x-rays?

a. anode tube

b. geissler tube

c. coolidge tube

d. crooke’s tube

d. crooke’s tube

which of the following provides dynamic x-ray images?

a. fluorscope

b. tomography

c. digital radiography

d. mammography

a. fluoroscope

what is the purpose of x-ray beam collimation?

a. restrict the x-ray beam to the area of interest

b. increase technologist exposures

c. compromise image quality

d. reduce patient discomfort

a. restrict the x-ray beam to the area of interest

which unit is indication of radiation absorbed dose?

a. sievert (Sv)

b. air kerma (Gya)

c. becquerel (Bq)

d. gray (Gyt)

d. gray (Gyt)

which of the following terms describes a change in velocity over a period of time?

a. acceleration

b. power

c. momentum

d. force

a. acceleration

if the acceleration caused by gravity is 9.8 m/s², what is the gravitational force acting on a 50 kg sack pushed off the roof of a 50 story building?

a. 40.2 N

b. 5.1 N

c. 80 N

d. 490 N

d. 490 N

the equation E=mc² proves that energy can be transferred into ______. 

a. charge

b. heat

c. radiation

d. matter

d. matter

which tissue is MOST sensitive?

a. bone marrow

b. muscle

c. hair

d. nerves

a. bone marrow

which of the following are taken into account when setting kVp and mAs?

1. anatomic part

2. pathology

3. patient age

a. 1 only

b. 3 only

c. 1 and 2 only

d. 1, 2, and 3

d. 1, 2, and 3