Top 150+ Solved Radiographic Testing Level 2 MCQ Questions Answer
Q. Increasing the kV setting on an X ray machine increases the:
a. Penetrating power
b. Short wavelength components of the X ray beam
c. Radiation intensity
d. All of the above
Q. During the manufacturing of a casting, the purpose of a riser is:
a. To introduce molten metal into the mould
b. To provide additional molten metal to allow for shrinkage during solidification
c. To allow excess heat to escape during solidification
d. To provide a vent for excess steam to escape
Q. An effective method of recognising a film artifact is:
a. Viewing a film in daylight
b. Viewing film in reflected light from a viewer
c. Comparing both film shot with a double film technique
d. All of the above
Q. The main reason for using a casting is that:
a. Castings are stronger than other metal product forms
b. Castings are normally of higher quality than other metal product forms
c. Complex shapes of minimum weight are easily manufactured
d. None of the above
Q. A change in which of the following parameters would require a new X ray exposurechart?
a. kV
b. Required film density
c. Test piece thickness
d. All of the above
Q. Static marks on radiographic film are caused by:
a. An improperly grounded X ray tube
b. Scratches on the lead screens
c. Poor film handling technique
d. Old film
Q. Of the following radiographic sources, which emits the most penetrating radiation?
a. Co-60
b. Ra-226
c. Cs-137
d. Ir-192
Q. Which of the following techniques would probably reduce the amount of backscattered radiation reaching the film during a radiographic exposure?
a. Using a finer grained film
b. Backing the cassette with a sheet of lead
c. Removing lead screens
d. All of the above
Q. Radiographic contrast is dependant on:
a. Density
b. Processing
c. Radiation energy
d. All of the above
Q. A plot of film density versus log of relative exposure is called:
a. An H&D curve
b. A sensitometric curve
c. A characteristic curve
d. All of the above
Q. The most common material used for targets in X ray tubes is:
a. Tungsten
b. Copper
c. Silver
d. Beryllium
Q. A dark crescent shaped spot, clearly in the base metal adjacent to a weld wouldprobably be:
a. Burn through
b. Film crimp mark
c. A crack
d. A water spot on the film
Q. Which of the following are potential sources of scattered radiation?
a. Test piece
b. Cassette
c. Floor
d. All of the above
Q. If the required exposure time for a 2220 GBq (60 curie) Ir-192 source is 2 minutes,what exposure time would be required at 1110 GBq (30 curie) source:
a. 2/3 minutes
b. 60 minutes
c. 2 minutes
d. 4 minutes
Q. An advantage of a larger grain film is:
a. It has higher speed
b. It has better definition
c. It has lower speed
d. None of the above