RT Level 1 :: ASNT/NDT Mock Test Practice Quiz | NDT Radiographic Testing MCQ’s Part-3

Non-Destructive Testing: 40′ Questions for Conduct of Examinations at NDT RT Level-1

Radiographic Testing Level -1 (RT) General Examination Part-3

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RT Level 1 :: NDT Mock Test Practice Quiz MCQ’s Part-3

1.

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

 
 
 
 

2.

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

 
 
 
 

3.

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

 
 
 
 

4.

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

 
 
 
 

5.

The effects of scattered radiation may be lessened by:

 
 
 
 

6.

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

 
 
 
 

7.

An effect of scattered radiation is to:

 
 
 
 

8.

Radiographic film speed can be increased by using:

 
 
 
 

9.

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

 
 
 
 

10.

What is the most desirable temperature for manual developer solutions?

 
 
 
 

11.

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

 
 
 
 

12.

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

 
 
 
 

13.

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

 
 
 
 

14.

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

 
 
 
 

15.

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

 
 
 
 

16.

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

 
 
 
 

17.

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

 
 
 
 

18.

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

 
 
 
 

19.

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

 
 
 
 

20.

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

 
 
 
 

21.

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

 
 
 
 

22.

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

 
 
 
 

23.

An advantage of a gamma-ray source is:

 
 
 
 

24.

The shorter the wavelength of X or gamma rays:

 
 
 
 

25.

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

 
 
 
 

26.

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

 
 
 
 

27.

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

 
 
 
 

28.

Lead intensifying screens are used to:

 
 
 
 

29.

Lead screens act as intensifiers at voltage above:

 
 
 
 

30.

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:

 
 
 
 

31.

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

 
 
 
 

32.

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

 
 
 
 

33.

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

 
 
 
 

34.

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

 
 
 
 

35.

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

 
 
 
 

36.

‘Photoelectric effect’ refers to:

 
 
 
 

37.

The mottled film may result from:

 
 
 
 

38.

The minimum size hole in an ASTM penetrameter is:

 
 
 
 

39.

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

 
 
 
 

40.

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

 
 
 
 

Question 1 of 40

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