Top 150+ Solved Radiographic Testing Level 2 MCQ Questions Answer
Q. Increasing the mA setting on an X ray machine:
a. Decreases exposure time
b. Increases exposure time
c. Increases the short wavelength components of the X ray beam
d. Decreases the short wavelength components of the X ray beam
Q. Which of the following would be considered a film artifact?
a. Excessive film density
b. Light leaks
c. Inadequate penetration
d. Sugar
Q. Which of the following would be detrimental to radiographic image sharpness?
a. Small focal spot
b. Large film focal distance
c. Small object to film distance
d. None of the above
Q. A dark crescent shaped mark in the centre of a weld bead radiographic image wouldprobably be:
a. A film artifact
b. Porosity
c. A tungsten inclusion
d. Root concavity
Q. A photon-nuclear interaction in which energy is converted into sub-atomic particles iscalled:
a. The photoelectric effect
b. The Compton effect
c. Pair production
d. Bremsstrahlung
Q. An interaction in which radiation is produced by the rapid deceleration of an electronis called:
a. The photoelectric effect
b. The Compton effect
c. Pair production
d. Bremsstrahlung
Q. The gamma factor of Tm-170 is:
a. 1.37 R·h-1·Ci-1at one metre
b. 0.59 R·h-1·Ci-1at one metre
c. 0.0062 R·h-1·Ci-1at one metre
d. 0.38 R·h-1·Ci-1at one metre
Q. An exposed radiographic film which transmits 1% of the light incident on it has whatdensity:
a. 1.0
b. 2.0
c. 99.0
d. 0.5
Q. If the radiation intensity is 5 Gy/h (500 R/h) at a distance of 152.4 cm (5 feet) from asource, what is the intensity at 1524 cm (50 feet)?
a. 0.5 Gy/h (50 R/h)
b. 1.0 Gy/h (100 R/h)
c. 0.1 Gy/h (10R/h)
d. 0.05 Gy/h (5 R/h)
Q. The average energy of a Cs-137 source is approximately:
a. 60-80 keV
b. 660 keV
c. 400 keV
d. 1.2 MeV
Q. Which of the following is an advantage of X ray over gamma ray sources forradiography?
a. Portability
b. Required maintenance
c. Variable radiation energy
d. All of the above
Q. The basic purpose of a penetrameter is to:
a. Indicate quality of the radiographic technique
b. Indicate the smallest discontinuity which can be shown by the radiographic technique being used
c. Serve as a comparison standard for evaluating discontinuity size
d. All of the above
Q. When a casting is being non destructively examined for critical service, and thepossibility of cracks exists, which of the following techniques would be best?
a. X ray radiography at 200 kV or less
b. Magnetic Particle or Liquid Penetrant testing
c. Radiography (X or gamma ray, depending on the thickness)
d. Radiography and either Magnetic Particle or liquid Penetrant testing
Q. Which of the following is an advantage of X ray over gamma ray sources forradiography?
a. Safety
b. Variable radiation intensity
c. Variable radiation energy
d. All of the above