Basic X-Ray Machine operator exam with correct answers

Basic X-Ray Machine operator exam with
correct answers

Which of the following would be considered a characteristic of x-rays?

1. have no mass

2. are electrically neutral

3.travel in straight lines - 🔸🔶CORRECT ANSWERS ✔✔1,2,3



The oldest and largest radiologic science professional organization is the: -
🔸🔶CORRECT ANSWERS ✔✔American Society of Radiologic Technologists
(ASRT)



The organization that sets standards and prepares examinations necessary to
certify radiologic technologists and limited operators is the: - 🔸🔶CORRECT
ANSWERS ✔✔American Registry of Radiologic Technologists (ARRT)



The radiation that exits the opposite side of the patient to expose the image
receptor (IR) is called: - 🔸🔶CORRECT ANSWERS ✔✔Remnat radiation



The term used to describe radiation that is absorbed by matter is: -
🔸🔶CORRECT ANSWERS ✔✔Attenuation



The "unseen" image that is contained in the image receptor (IR) before it is
processed is called the: - 🔸🔶CORRECT ANSWERS ✔✔Latent image

,The radiation that exits the body in all directions and causes unwanted
exposure on the image receptor (IR) as well as anyone who is in the room is
called __________ radiation. - 🔸🔶CORRECT ANSWERS ✔✔Scattered



The radiation that exits the x-ray tube and travels in-air to the patient is called:
- 🔸🔶CORRECT ANSWERS ✔✔Primary



The boxlike device attached under the tube housing that allows the limited
operator to vary the size of the radiation field is called the: - 🔸🔶CORRECT
ANSWERS ✔✔Collimator



An invisible line in the center of the x-ray beam and perpendicular to the long
axis of the x-ray tube is called the: - 🔸🔶CORRECT ANSWERS ✔✔Central
Ray



An exposure time of 0.02 seconds is equal to how many milliseconds? -
🔸🔶CORRECT ANSWERS ✔✔20 msec



The number 9 squared is equal to: - 🔸🔶CORRECT ANSWERS ✔✔81



The number 4 is the square root of: - 🔸🔶CORRECT ANSWERS ✔✔16



When 62 kVp is increased by 30%, the result is approximately: -
🔸🔶CORRECT ANSWERS ✔✔81

,When the fraction 7/8 is converted to a decimal, the result is: -
🔸🔶CORRECT ANSWERS ✔✔0.875



When 230% is expressed as a decimal, the result is: - 🔸🔶CORRECT
ANSWERS ✔✔2.3



A radiographic image is made using 500 mA, 0.1 sec., 80 kVp, and

48-inches SID. The value of the mAs for this exposure is - 🔸🔶CORRECT
ANSWERS ✔✔50 mAs



X-rays have electromagnetic energy. The velocity (or speed) of this energy
travels at a speed of: - 🔸🔶CORRECT ANSWERS ✔✔186,000 miles per
second



The smallest possible unit of electromagnetic energy is the: - 🔸🔶CORRECT
ANSWERS ✔✔Photon



The electrical current flowing in an x-ray tube is measured in: -
🔸🔶CORRECT ANSWERS ✔✔Milliamperes



The force or strength of the electron flow in an electrical current is measured
in: - 🔸🔶CORRECT ANSWERS ✔✔Kilovoltage

, The device used to produce the high voltage needed for x-ray production is
called the: - 🔸🔶CORRECT ANSWERS ✔✔Transformer



In radiology, 80,000 volts is converted to: - 🔸🔶CORRECT ANSWERS ✔✔80
kVp



The target and the filament in the x-ray tube are made of: - 🔸🔶CORRECT
ANSWERS ✔✔Tungsten



Electrons are made available in the filament of the x-ray tube by a process
called: - 🔸🔶CORRECT ANSWERS ✔✔Thermionic emission



The anode in x-ray tubes rotates at a high rpm to: - 🔸🔶CORRECT
ANSWERS ✔✔Dissipate the heat



The target in the x-ray tube is angled to affect the:

1. heat capacity

2. number of photons

3. sharpness of the image - 🔸🔶CORRECT ANSWERS ✔✔1 and 3



Which of the following would be a common small focal spot size in an x-ray
tube? - 🔸🔶CORRECT ANSWERS ✔✔0.6 mm



What size of target angle is required for the radiation to cover a