10
Radiographic Testing Instructor Guide l LESSON 1
8. 1 × 10–3 would be equal to:
a. 0.001
b. 0.010
c. 0.100
d. 1.00
9. Which of the following is an advantage of
radiographic testing?
a. The ability to reveal subsurface
discontinuities that are perpendicular to
the radiation beam.
b. Can reveal discontinuities open to the
surface and can reveal discontinuities
within the material.
c. Reveals all internal discontinuities.
d. Is cost-effective when testing for surface
discontinuities.
10. Which of the following can radiographic
testing reveal?
a. Structural discontinuities, mechanical
failures, assembly errors, and fabrication
errors.
b. Assembly errors, mechanical failures,
and structural discontinuities, but not
fabrication errors.
c. Structural discontinuities, mechanical
failures, and fabrication errors, but not
assembly errors.
d. Mechanical failures, assembly errors,
and fabrication errors, but not structural
discontinuities.
11. Three basic principles to minimize radiation
exposure are:
a. Time, density, and source.
b. Time, distance, and speed.
c. Time, distance, and shielding.
d. Latitude, altitude, and distance.
12. If you have a base number of 4 with an
exponent of 2, the resultant number is:
a. 2
b. 4
c. 8
d. 16
13. Which of the following can a radiographic
trainee perform?
a. Independently perform equipment
calibrations.
b. Perform unsupervised X-ray testing.
c. Process and sort X-ray film.
d. Evaluate X-ray film.
14. What are the most common forms of radiation
used to date to test a variety of products in
various industries?
a. X-rays and gamma rays.
b. Alpha and beta rays.
c. Nonionizing radiation.
d. Cosmic rays.
15. Who accidentally discovered X-rays in 1895?
a. Röntgen.
b. Becquerel.
c. Curie.
d. Geiger.
16. How many different levels of qualification
currently exist in the radiographic testing
industry?
a. 1
b. 2
c. 4
d. 3
Radiographic Testing Instructor Guide l LESSON 1
8. 1 × 10–3 would be equal to:
a. 0.001
b. 0.010
c. 0.100
d. 1.00
9. Which of the following is an advantage of
radiographic testing?
a. The ability to reveal subsurface
discontinuities that are perpendicular to
the radiation beam.
b. Can reveal discontinuities open to the
surface and can reveal discontinuities
within the material.
c. Reveals all internal discontinuities.
d. Is cost-effective when testing for surface
discontinuities.
10. Which of the following can radiographic
testing reveal?
a. Structural discontinuities, mechanical
failures, assembly errors, and fabrication
errors.
b. Assembly errors, mechanical failures,
and structural discontinuities, but not
fabrication errors.
c. Structural discontinuities, mechanical
failures, and fabrication errors, but not
assembly errors.
d. Mechanical failures, assembly errors,
and fabrication errors, but not structural
discontinuities.
11. Three basic principles to minimize radiation
exposure are:
a. Time, density, and source.
b. Time, distance, and speed.
c. Time, distance, and shielding.
d. Latitude, altitude, and distance.
12. If you have a base number of 4 with an
exponent of 2, the resultant number is:
a. 2
b. 4
c. 8
d. 16
13. Which of the following can a radiographic
trainee perform?
a. Independently perform equipment
calibrations.
b. Perform unsupervised X-ray testing.
c. Process and sort X-ray film.
d. Evaluate X-ray film.
14. What are the most common forms of radiation
used to date to test a variety of products in
various industries?
a. X-rays and gamma rays.
b. Alpha and beta rays.
c. Nonionizing radiation.
d. Cosmic rays.
15. Who accidentally discovered X-rays in 1895?
a. Röntgen.
b. Becquerel.
c. Curie.
d. Geiger.
16. How many different levels of qualification
currently exist in the radiographic testing
industry?
a. 1
b. 2
c. 4
d. 3