RT Level 1
1-1/2 mins - ANS-A suitable radiograph is received the usage of milliamperage of 15
milliamperes and an publicity time of half of minute. How much longer will it take to get the
identical radiograph if the milliamperage is increased to five milliamperes? 10 mils -
ANS-When radiographing to the 2T first-rate level, an ASTM penetrameter for 1/2in thick
2024 aluminum alloy has a thickness of
Peak x-rays of 100 kilovolts, or ANS, which have the shortest wavelengths 1000 millicuries -
ANS-A curie is equivalent to
one hundred mR/hr - ANS-A dose charge of 900 mR/hr at 10 ft is furnished by using an
unshielded isotope source. What would be the dose fee at 30 ft
15 seconds - ANS-Is an publicity time of 60 seconds was important the use of a four feet
supply to film distance for a specific exposure, what time would be vital is a 2 feet supply to
film distance is used
186,000 miles in line with second - ANS-The velocity of all electromagnetic radiation is
2 - ANS-Approx what percentage of the unique radioactivity is left after 6 1/2 lives
two hundred-800R - ANS-Which dose would be dangerous, if now not deadly, if
implemented to the complete frame in a quick period of time
With a given exposure time and kilovoltage, a nicely uncovered radiograph can be received
with an exposure time of 24 milliamperes-minute at a distance of 20 inches. It is favored to
growth the sharpness of element inside the image by way of increasing the supply to movie
distance to 40 in. The correct milliamperage-mins publicity to acquire the desired density at
the accelerated distance is
370,000,000,000 (370 billion) disintegrations according to 2d taking location - ANS-A
radioactive supply with an activity of one curie has
five (N-18) - ANS-The formula for figuring out permissible accumulated personnel dose is
five to 8 minutes in 68 stages F - ANS-The everyday improvement time for manually
processing X-Ray movie is
five.3yrs - ANS-A cobalt-60 supply has a 1/2 lifestyles of
6 minutes - ANS-An first-rate radiograph is acquired beneath given publicity situations with
a tube present day of five milliamperes and a publicity time of 12 mins. If the alternative
situations aren't modified, what exposure time would be required if the x-ray tube
contemporary will be raised to 10 milliamperes
65 - 75 tiers F - ANS-For fine consequences whilst manually processing film, answers must
be maintained with a temperature
seventy five mr/hr - ANS: When doing an isotope exposure in an unprotected vicinity, you
locate that the dose price is 1200 mr/hr 6 ft from the supply. What would be the dose fee at
24ft
80 seconds - ANS-Assuming that a very good radiograph is received at a setting of 10
milliamperes in 40 seconds, how a good deal time will be necessary to obtain one equal
radiograph if the milliamperage changes to five milliamperes
a dark intermittent or continuous line - ANS-When radiographing a component which
contains a big crack, the crack will appear at the radiograph as
, a clear out - ANS-A thin steel sheet (Brass, copper, aluminum, and many others.) placed at
the source to lessen results of softer radiation is called
a half lifestyles - ANS The time it takes for half of an atom in a radioactive pattern to break
down is known as a high atomic quantity (ANS): The goal material with the very best x-ray
efficiency a masks - ANS-A sheet of lead with a gap reduce within the form of the part to be
radiographed may be used to decrease the impact of scattered radiation which undercuts
the specimens, this type of devise is known as
a timer - ANS-The length of an exposure is typically managed by way of
addition of replenisher - ANS-The pastime of the developer solution is maintained solid
through
All of the aforementioned ANS: Excessive publicity to x-rays or gamma rays can harm any
body tissue, but the maximum susceptible are ALL OF THE ABOVE - ANS-Gamma and
X-Radiation have interaction with matter and may be absorbed by using
ALL OF THE ABOVE - ANS-In appearing fluoroscopic exam of a element, it's miles vital to
ANS-Radiographic sensitivity, measured in relation to the smallest flaw length that can be
detected, is decided by way of ALL OF THE ABOVE - ANS-The reason for bad image
definition can be
ALL OF THE ABOVE - ANS-The exposure of personnel to X- and Gamma radiation may be
measured or monitored by
ALL OF THE ABOVE - ANS-The cause of fixation is
ALL OF THE ABOVE - ANS-The selection of the proper sort of film to be used for the x-ray
examination of a specific element relies upon on
an exposure chart or technique chart - ANS-A graph showing the relation between cloth
thickness, kilovoltage, and exposure is known as:
An tool for measuring the density of a cloth - ANS-A densitometer is
Any needless radiation exposure is immoderate; the ANS-A widespread rule for figuring out
how lots radiation exposure is immoderate is again the cassette with a sheet of lead, the
thickness wanted relying on the radiation exceptional. - ANS-To save you immoderate
backscatter from accomplishing a radiograph film, one have to:
backscattered radiation - ANS-Scattered radiation resulting from any cloth, such as a wall of
ground, at the movie facet of the specimen is known as
Because of its penetrating potential - ANS-Why is cobalt-60 used as a radiation source for
medium weight materials of thickness ranging from 1.5-9 in?
BOTH A AND B - ANS-Lead foil monitors are utilized in radiography
BOTH A AND B - ANS-X-ray exposure can be due to
through faraway dealing with system - ANS-When doing gamma-ray radiography with high
intensity emitters, the resources are excellent handled
ANS-Fluorescent intensifying monitors are usually installed in pairs in inflexible holders
called cassettes. Crimping the movie previous to publicity ANS-White cresent-formed marks
on uncovered x-ray film are most likely the end result of The curie - ANS unit of dimension
for measuring the rate at which a gamma ray supply's output degrades is the decay
(disintegration) - ANS-The term used to describe the lack of excess enegery by way of the
nucleus of radiactive atoms is referred to as
Decrease exposure time - ANS-Although there may be different motives for the usage of
calcium tungstate displays, they're broadly speaking used for
decreases with time - ANS-The radiation intensity of a radioisotope
determine the source energy at any time - ANS-the purpose of a dated decay curve is to
decided by the isotope concerned - ANS-The radiation pleasant of gamma ray source is
1-1/2 mins - ANS-A suitable radiograph is received the usage of milliamperage of 15
milliamperes and an publicity time of half of minute. How much longer will it take to get the
identical radiograph if the milliamperage is increased to five milliamperes? 10 mils -
ANS-When radiographing to the 2T first-rate level, an ASTM penetrameter for 1/2in thick
2024 aluminum alloy has a thickness of
Peak x-rays of 100 kilovolts, or ANS, which have the shortest wavelengths 1000 millicuries -
ANS-A curie is equivalent to
one hundred mR/hr - ANS-A dose charge of 900 mR/hr at 10 ft is furnished by using an
unshielded isotope source. What would be the dose fee at 30 ft
15 seconds - ANS-Is an publicity time of 60 seconds was important the use of a four feet
supply to film distance for a specific exposure, what time would be vital is a 2 feet supply to
film distance is used
186,000 miles in line with second - ANS-The velocity of all electromagnetic radiation is
2 - ANS-Approx what percentage of the unique radioactivity is left after 6 1/2 lives
two hundred-800R - ANS-Which dose would be dangerous, if now not deadly, if
implemented to the complete frame in a quick period of time
With a given exposure time and kilovoltage, a nicely uncovered radiograph can be received
with an exposure time of 24 milliamperes-minute at a distance of 20 inches. It is favored to
growth the sharpness of element inside the image by way of increasing the supply to movie
distance to 40 in. The correct milliamperage-mins publicity to acquire the desired density at
the accelerated distance is
370,000,000,000 (370 billion) disintegrations according to 2d taking location - ANS-A
radioactive supply with an activity of one curie has
five (N-18) - ANS-The formula for figuring out permissible accumulated personnel dose is
five to 8 minutes in 68 stages F - ANS-The everyday improvement time for manually
processing X-Ray movie is
five.3yrs - ANS-A cobalt-60 supply has a 1/2 lifestyles of
6 minutes - ANS-An first-rate radiograph is acquired beneath given publicity situations with
a tube present day of five milliamperes and a publicity time of 12 mins. If the alternative
situations aren't modified, what exposure time would be required if the x-ray tube
contemporary will be raised to 10 milliamperes
65 - 75 tiers F - ANS-For fine consequences whilst manually processing film, answers must
be maintained with a temperature
seventy five mr/hr - ANS: When doing an isotope exposure in an unprotected vicinity, you
locate that the dose price is 1200 mr/hr 6 ft from the supply. What would be the dose fee at
24ft
80 seconds - ANS-Assuming that a very good radiograph is received at a setting of 10
milliamperes in 40 seconds, how a good deal time will be necessary to obtain one equal
radiograph if the milliamperage changes to five milliamperes
a dark intermittent or continuous line - ANS-When radiographing a component which
contains a big crack, the crack will appear at the radiograph as
, a clear out - ANS-A thin steel sheet (Brass, copper, aluminum, and many others.) placed at
the source to lessen results of softer radiation is called
a half lifestyles - ANS The time it takes for half of an atom in a radioactive pattern to break
down is known as a high atomic quantity (ANS): The goal material with the very best x-ray
efficiency a masks - ANS-A sheet of lead with a gap reduce within the form of the part to be
radiographed may be used to decrease the impact of scattered radiation which undercuts
the specimens, this type of devise is known as
a timer - ANS-The length of an exposure is typically managed by way of
addition of replenisher - ANS-The pastime of the developer solution is maintained solid
through
All of the aforementioned ANS: Excessive publicity to x-rays or gamma rays can harm any
body tissue, but the maximum susceptible are ALL OF THE ABOVE - ANS-Gamma and
X-Radiation have interaction with matter and may be absorbed by using
ALL OF THE ABOVE - ANS-In appearing fluoroscopic exam of a element, it's miles vital to
ANS-Radiographic sensitivity, measured in relation to the smallest flaw length that can be
detected, is decided by way of ALL OF THE ABOVE - ANS-The reason for bad image
definition can be
ALL OF THE ABOVE - ANS-The exposure of personnel to X- and Gamma radiation may be
measured or monitored by
ALL OF THE ABOVE - ANS-The cause of fixation is
ALL OF THE ABOVE - ANS-The selection of the proper sort of film to be used for the x-ray
examination of a specific element relies upon on
an exposure chart or technique chart - ANS-A graph showing the relation between cloth
thickness, kilovoltage, and exposure is known as:
An tool for measuring the density of a cloth - ANS-A densitometer is
Any needless radiation exposure is immoderate; the ANS-A widespread rule for figuring out
how lots radiation exposure is immoderate is again the cassette with a sheet of lead, the
thickness wanted relying on the radiation exceptional. - ANS-To save you immoderate
backscatter from accomplishing a radiograph film, one have to:
backscattered radiation - ANS-Scattered radiation resulting from any cloth, such as a wall of
ground, at the movie facet of the specimen is known as
Because of its penetrating potential - ANS-Why is cobalt-60 used as a radiation source for
medium weight materials of thickness ranging from 1.5-9 in?
BOTH A AND B - ANS-Lead foil monitors are utilized in radiography
BOTH A AND B - ANS-X-ray exposure can be due to
through faraway dealing with system - ANS-When doing gamma-ray radiography with high
intensity emitters, the resources are excellent handled
ANS-Fluorescent intensifying monitors are usually installed in pairs in inflexible holders
called cassettes. Crimping the movie previous to publicity ANS-White cresent-formed marks
on uncovered x-ray film are most likely the end result of The curie - ANS unit of dimension
for measuring the rate at which a gamma ray supply's output degrades is the decay
(disintegration) - ANS-The term used to describe the lack of excess enegery by way of the
nucleus of radiactive atoms is referred to as
Decrease exposure time - ANS-Although there may be different motives for the usage of
calcium tungstate displays, they're broadly speaking used for
decreases with time - ANS-The radiation intensity of a radioisotope
determine the source energy at any time - ANS-the purpose of a dated decay curve is to
decided by the isotope concerned - ANS-The radiation pleasant of gamma ray source is
