According to Article 2 – Radiographic Examination of ASME V, the IQI or penetrameter selection shall be selected and based on:

An excellent radiograph is obtained under given exposure conditions with a tube current of 3 mA and an exposure time of 12 minutes. If other conditions are not changed, what exposure time would be required if the X-ray tube current could be raised to 7 mA?

According to Article 2 – Radiographic Examination of ASME V In film radiography, penetrameter or Wire IQIs for welds shall be placed :

When performing Double Wall Technique, Double Wall Viewing, what are the necessary conditions to be applied:

Using the Table T-276 of Article 2 ASME V. Determine the Hole Type Designation number (Film Side) if the base weld thickness 1.75” without reinforcement:

In order to decrease geometric unsharpness:

If an exposure time of 120 seconds was necessary using a 1.55 m (5 ft) source-to film distance for a particular exposure, what time would be necessary if a 0.6 m (2 ft) source-to-film distance is used and all other variables remain the same?

With a given exposure time and kilovoltage, a properly exposed radiograph is obtained with a 5 mA-minutes exposure at the distance of 51 cm (20 in.). It is desired to increase the sharpness of detail in the image by increasing the source-to-film distance to 102 cm (40 in.). The correct milliamperage-minutes exposure to obtain the desired radiographic density at the increased distance is:

Assuming that a good radiograph is obtained at a setting of 15 mA in 30 s, how much time will be necessary to obtain one equivalent radiograph if the milliamperage is changed to 5 mA (all other conditions remaining constant)?

In making an isotope exposure in an unshielded area, you find the dose rate 1.8 m (6 ft) from the source is 2 500 mR/h. What would be the dose rate at 9.15 m (30 ft)?

If initial activity of Ir-192 source is 75 Ci, what will be its activity after 3 months?

Based on the absorbing capability, which of the following list concrete, lead, and steel in order of their effectiveness in providing shielding against radiation?

A radiation level of 100 mR/h is noted at the perimeter of your posted high radiation area. . This perimeter is 25 cm (10 Ft) from the exposed source. Approximately how far away from the source should the radiation area signs be posted for the 2 mR/h line

. If the rule of thumb is used as a minimum Source to film distance , calculate the geometric unsharpness if the source size is having a length of 2.5 mm and diameter of 1.5 mm , thickness of the test specimen is 5 in.

Calculate the half life of a certain isotope if the activity original of the source is 63 Ci and become 3.94 Ci after 300 days has elapsed.

An exposure technique is established to obtain a 2.0 density using type D film and automatic processing at 27 degrees Celsius. . In order to obtain comparable results using manual processing at 20 degrees and 5 minute development time, it would be necessary for the original exposure time to be

A cobalt 60 was purchased 20 years ago which has an original activity of 53 curie. A weld that has a thickness of 5 inches is to be radiograph using the same source of radiation. How far should be the safe distance from the source unshielded in order to become permissible at 2 mR/h. (2.5 points)? Show your calculations.

What is the necessary exposure time in order to radiograph the above specimen, assuming that the sensitivity requirement of 2% is met and the exposure factor of a film is .20 Ci-min/in2 using the rule of thumb for the minimum SFD? (1.5 points). Show your calculations