BXMO – BASIC X-RAY MACHINE OPERATOR CERTIFIED
QUALITY EXAM FULL VERIFIED ANSWERS NEWEST 26/27
Which of the following would be a common small focal spot
size in an x-ray tube?
0.6 mm
What size of target angle is required for the radiation to cover
a
14-in x 17-in IR at a distance of 40 inches?
12 degrees
The intensity of the x-ray beam is greatest at the:
Cathode end of the beam
The penetrating power of the x-ray beam is controlled by
varying the:
Kvp
If the ma is doubled, the x-ray photons emitted from the tube:
Double
,The x-ray tube inside the protective housing is made of:
Pyrex glass
What material is used as the added filter material in x-ray
tubes?
Aluminum
What percentage of the total energy applied to an x-ray tube
target is converted into x-rays?
99%
The density in the radiographic image is primarily controlled by
the:
Ma
Which of the following supplies and controls the heat required
by the x-ray tube filament for thermionic emission of
electrons?
Filament circuit
,Which of the following is controlled directly on the x-ray
control panel?
1. Ma
2. Rectification
3. Automatic exposure control
1 and 3
How many detectors are contained in an automatic exposure
control (AEC) device in an x-ray table?
3
Which of the following is varied automatically when using
automatic exposure control (AEC)?
Exposure time
Which of the following can cause too much heat on the anode
and cause it to crack and fail?
1. Excessive exposure on a cold tube
2. A rapid series of large exposures
3. Ma settings greater than 400 ma
1 and 2
, X-ray tubes should undergo the warm-up procedure again
after they have been idle for more than:
1 hour
What is the heat unit (HU) of the anode if 200 ma, 0.10 sec., and
80 kvp is used on a single- phase generator?
1600
How many heat units (HU) are generated on a high frequency
(HF) generator if an exposure time of 300 ma, 0.12 sec., and 95
kvp is used?
3,420
Which of the following will help prolong the life of an x-ray
tube?
1. Warm up the anode each morning
2. Use low ma setting whenever possible
3. Use the low-speed rotor whenever possible
1,2, and 3
Which of the following x-ray generators produces the greatest
amount of x-rays for the same exposure technique?
QUALITY EXAM FULL VERIFIED ANSWERS NEWEST 26/27
Which of the following would be a common small focal spot
size in an x-ray tube?
0.6 mm
What size of target angle is required for the radiation to cover
a
14-in x 17-in IR at a distance of 40 inches?
12 degrees
The intensity of the x-ray beam is greatest at the:
Cathode end of the beam
The penetrating power of the x-ray beam is controlled by
varying the:
Kvp
If the ma is doubled, the x-ray photons emitted from the tube:
Double
,The x-ray tube inside the protective housing is made of:
Pyrex glass
What material is used as the added filter material in x-ray
tubes?
Aluminum
What percentage of the total energy applied to an x-ray tube
target is converted into x-rays?
99%
The density in the radiographic image is primarily controlled by
the:
Ma
Which of the following supplies and controls the heat required
by the x-ray tube filament for thermionic emission of
electrons?
Filament circuit
,Which of the following is controlled directly on the x-ray
control panel?
1. Ma
2. Rectification
3. Automatic exposure control
1 and 3
How many detectors are contained in an automatic exposure
control (AEC) device in an x-ray table?
3
Which of the following is varied automatically when using
automatic exposure control (AEC)?
Exposure time
Which of the following can cause too much heat on the anode
and cause it to crack and fail?
1. Excessive exposure on a cold tube
2. A rapid series of large exposures
3. Ma settings greater than 400 ma
1 and 2
, X-ray tubes should undergo the warm-up procedure again
after they have been idle for more than:
1 hour
What is the heat unit (HU) of the anode if 200 ma, 0.10 sec., and
80 kvp is used on a single- phase generator?
1600
How many heat units (HU) are generated on a high frequency
(HF) generator if an exposure time of 300 ma, 0.12 sec., and 95
kvp is used?
3,420
Which of the following will help prolong the life of an x-ray
tube?
1. Warm up the anode each morning
2. Use low ma setting whenever possible
3. Use the low-speed rotor whenever possible
1,2, and 3
Which of the following x-ray generators produces the greatest
amount of x-rays for the same exposure technique?
