1.

What governs the penetrating ability of an X-ray beam?

2.

A change in which of the following parameters would necessitate the construction of a new X ray exposure chart?

3.

A radiation producing device that emits radiation of one or a few discreet wavelengths is:

4.

The primary effect of an increase in the kilovoltage at which a X ray tube is being operated would be to:

5.

A radiographic sensitivity level of 2-2T means that:

6.

Which of the following expressions correctly describes the relation between milliamperage (M) and exposure time (T)?

7.

The primary effect of an increase in the milliamperage at which a X-ray tube is being operated would be to:

8.

A thin, white line within the film image of a weld crown might be:

9.

A beam of radiation consisting of a single wavelength is known as: (choose one)

10.

A possible result of failing to use a stop bath during manual development is:

11.

The speed at which X and gamma rays travel is: (choose one)

12.

Lead screens act as intensifiers at voltage above:

13.

Radiography of tubular sections using a double-wall, double viewing technique is mainly applicable to sections:

14.

The penetrameter is a tool used to check the ________________ of a radiograph:

15.

The use of a slower speed film improves the definition of the radiograph because the slower film:

16.

Which of the following expressions correctly describe the relation between milliamperage (M) and focus-to-film distance (D)?

17.

When using a radioactive isotope in making a radiograph, we can express the equation for exposure as Ci × T. In this equation, Ci stands for:

18.

Which of the following expressions correctly describes the relationship between exposure time (T) and focus-film distance (D)?

19.

What is the longest period of time which should elapse between complete changes of developer solution?

20.

19. After the step wedge radiographs have been made, the ____________ of the image of each step is recorded on chart:

21.

Which exposure factors are recorded in the process of making a step wedge analysis?

22.

The shorter the wavelength of X or gamma rays:

23.

The mottled film may result from:

24.

The process of being radioactive is called (Choose one):

25.

The amount of X radiation or gamma radiation is often spoken of as the____________ of the radiation:

26.

Which of the following types of radiation is commonly used in radiographic testing?(Choose one):

27.

What is the most desirable temperature for manual developer solutions?

28.

In the radiographic analysis procedure that is used to prepare an exposure chart, the first step is to:

29.

An advantage of a gamma-ray source is:

30.

The ASTM penetrameter for a 25 mm thick test piece contains holes of what sizes?

31.

Which of the following isotopes are commonly used for radiographic purposes?

32.

A radiation producing device that emits a broad spectrum of wavelengths is:

33.

The minimum size hole in an ASTM penetrameter is:

34.

‘Photoelectric effect’ refers to:

35.

Which of the following types of intensifying screens are used in industrial radiography?

36.

Radiographic film speed can be increased by using:

37.

When a tissue cell in the human body is damaged by radiation:

38.

Lead intensifying screens are used to:

39.

The effects of scattered radiation may be lessened by:

40.

An effect of scattered radiation is to: