Homework 2

Question 1

Ultrasonic waves that are used for nondestructive inspection vary in frequency ___from kilohertz to ____ megahertz.

Answer 1

Answer 1:
200
Answer 2:
25

Question 2

The ____ supplied to the cathode of an X-ray tube determines the intensity of an X-ray.

Answer 2

current

Question 3

What are the two methods of inspection that utilize Eddy current principles? (2 correct)

Answer 3

comparison
Absolute

Question 4

The image formed on the photographic film by either X-rays or gamma-rays is a _____ representation of the specimen being inspected.

Answer 4

negative

Question 5

The _____ supplied to the anode of an X-ray tube determines the energy of an X-ray.

Answer 5

voltage

Question 6

Gamma rays are produced by the disintegration of certain [1].

Answer 6

isotopes

Question 7

The two types of radiation energy (rays) used for radiographic inspection are:

Answer 7

X-ray
Gamma Ray

Question 8

The three types of waves that can be introduced into a test specimen when using ultrasonic inspection are:

Answer 8

transverse wave
longitudinal wave
surface wave

Question 9

Persons working around X-ray or gamma-ray equipment should wear ____ film badges.

Answer 9

monitoring

Question 10

A _____ material is one that will produce an electrical potential when it is pressed, bent, or otherwise distorted.

Answer 10

piezoelectric

Question 11

The four properties of a metal that makes Eddy current inspection possible are:

Answer 11

voids
permeability
mass
conductivity