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MCQ - TNPSC JTO

JTO - 440 - Welder

440 - Unit IX Testing Welded Joints by Different

81)   

Which gamma ray source has a shorter half-life?

A.
B.
C.
D.
82)   

In weld testing, film density is controlled by:

A.
B.
C.
D.
83)   

A major limitation of gamma ray testing compared to X-ray testing is:

A.
B.
C.
D.
84)   

Which statement is TRUE about X-ray tubes?

A.
B.
C.
D.
85)   

Radiographic sensitivity is usually expressed as:

A.
B.
C.
D.
86)   

In gamma ray welding inspection, the intensity of radiation decreases with:

A.
B.
C.
D.
87)   

The phenomenon of radiation causing film to darken is called:

A.
B.
C.
D.
88)   

In radiographic weld testing, which defect appears as a round dark spot?

A.
B.
C.
D.
89)   

Real-time radiography provides:

A.
B.
C.
D.
90)   

Gamma rays are produced by:

A.
B.
C.
D.
91)   

Which shielding material is commonly used for X-ray and gamma ray protection?

A.
B.
C.
D.
92)   

In radiography, "SFD" stands for:

A.
B.
C.
D.
93)   

Which radiographic defect indication is elongated and dark in appearance?

A.
B.
C.
D.
94)   

In gamma ray inspection, which factor MOST affects image sharpness?

A.
B.
C.
D.
95)   

A major advantage of gamma ray testing over X-ray testing is:

A.
B.
C.
D.
96)   

Which is a common isotope for industrial gamma radiography?

A.
B.
C.
D.