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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Also Read:  PAUT :: Advantages and Disadvantages [Phased Array Ultrasonic Testing]

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

1.

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

 
 
 
 

2.

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

 
 
 
 

3.

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

 
 
 
 

5.

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

 
 
 
 

6.

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

 
 
 
 

7.

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

 
 
 
 

8.

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

 
 
 
 

10.

Lead screens act as intensifiers at voltage above:

 
 
 
 

11.

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

 
 
 
 

12.

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

 
 
 
 

13.

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

 
 
 
 

14.

Radiographic film speed can be increased by using:

 
 
 
 

15.

Lead intensifying screens are used to:

 
 
 
 

16.

What is the most desirable temperature for manual developer solutions?

 
 
 
 

17.

‘Photoelectric effect’ refers to:

 
 
 
 

18.

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

 
 
 
 

19.

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

 
 
 
 

20.

The mottled film may result from:

 
 
 
 

21.

An effect of scattered radiation is to:

 
 
 
 

22.

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

 
 
 
 

23.

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

 
 
 
 

24.

The effects of scattered radiation may be lessened by:

 
 
 
 

25.

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

 
 
 
 

26.

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

 
 
 
 

27.

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

 
 
 
 

28.

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

 
 
 
 

29.

The shorter the wavelength of X or gamma rays:

 
 
 
 

30.

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

 
 
 
 

31.

The minimum size hole in an ASTM penetrameter is:

 
 
 
 

32.

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

 
 
 
 

33.

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

 
 
 
 

34.

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

 
 
 
 

35.

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

 
 
 
 

36.

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

 
 
 
 

37.

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

 
 
 
 

38.

An advantage of a gamma-ray source is:

 
 
 
 

39.

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

 
 
 
 

40.

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:

 
 
 
 

Question 1 of 40

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