9
NAME:_ _____________________________________
DATE:_ ______________________________________
1. Radiography is used to test which of the
following variety of products?
a. Castings, forgings, welds, and aerospace
components for cracks, foreign material,
and water in honeycomb.
b. Steel plate for laminations.
c. Very fine surface cracks in thick materials.
d. Products with access to only one side.
2. Radiographic testing images are typically:
a. photographs of digital images.
b. digital images or film images.
c. high-speed photographs.
d. digital pictures of film radiographs.
3. Advantages of radiographic testing include:
a. can be used on most materials and can
reveal discontinuities within a material.
b. can find all discontinuities in all products.
c. can best be used to find surface
discontinuities.
d. can readily find discontinuities that are
perpendicular to the radiation beam.
4. Radiographic testing uses X-ray and gamma
ray sources that generate great amounts of
radiation that can cause:
a. damage to the material inspected.
b. damage to cells of living tissue, which is a
health hazard.
c. no effect on the cells of living tissue.
d. no serious health concerns to the general
public.
5. The spontaneous decay process “radioactivity”
was discovered by:
a. Marie Curie.
b. Wilhelm Conrad Röntgen.
c. Henry Moseley.
d. Hans Geiger.
6. A number raised to the power of 0 (excluding
0 itself) is always:
a. 10
b. 1
c. 2
d. 0
7. When using exponents, 106 would equal:
a. 1000 =1 kilo (k)
b. 10 000
c. 1 000 000 =1 mega (M)
d. 1 000 000 000 =1 giga (G)
Lesson 1 Quiz
NAME:_ _____________________________________
DATE:_ ______________________________________
1. Radiography is used to test which of the
following variety of products?
a. Castings, forgings, welds, and aerospace
components for cracks, foreign material,
and water in honeycomb.
b. Steel plate for laminations.
c. Very fine surface cracks in thick materials.
d. Products with access to only one side.
2. Radiographic testing images are typically:
a. photographs of digital images.
b. digital images or film images.
c. high-speed photographs.
d. digital pictures of film radiographs.
3. Advantages of radiographic testing include:
a. can be used on most materials and can
reveal discontinuities within a material.
b. can find all discontinuities in all products.
c. can best be used to find surface
discontinuities.
d. can readily find discontinuities that are
perpendicular to the radiation beam.
4. Radiographic testing uses X-ray and gamma
ray sources that generate great amounts of
radiation that can cause:
a. damage to the material inspected.
b. damage to cells of living tissue, which is a
health hazard.
c. no effect on the cells of living tissue.
d. no serious health concerns to the general
public.
5. The spontaneous decay process “radioactivity”
was discovered by:
a. Marie Curie.
b. Wilhelm Conrad Röntgen.
c. Henry Moseley.
d. Hans Geiger.
6. A number raised to the power of 0 (excluding
0 itself) is always:
a. 10
b. 1
c. 2
d. 0
7. When using exponents, 106 would equal:
a. 1000 =1 kilo (k)
b. 10 000
c. 1 000 000 =1 mega (M)
d. 1 000 000 000 =1 giga (G)
Lesson 1 Quiz