MCQ - Mechanical TNPSC JTO
JTO - 440 - Welder - 440 - Unit IX Testing Welded Joints by Different
30)
Which destructive test shows both ductility & soundness?
A.
B.
C.
D.
Answer: D
31)
The primary purpose of Dye Penetrant Testing (DPT) is to detect:
A.
B.
C.
D.
Answer: B
34)
Which step in DPT removes excess penetrant from the surface?
A.
B.
C.
D.
Answer: C
37)
Magnetic Particle Testing (MPT) works on the principle of:
A.
B.
C.
D.
Answer: B
39)
Which type of current is often used in MPT for detecting subsurface defects?
A.
B.
C.
D.
Answer: A
43)
In DPT, the time the penetrant remains on the surface is called:
A.
B.
C.
D.
Answer: B
45)
MPT indication formed by magnetic flux leakage is called:
A.
B.
C.
D.
Answer: D
46)
Which MPT method uses wet suspension of particles in oil or water?
A.
B.
C.
D.
Answer: B
47)
In MPT, the strongest magnetic leakage field is produced when the defect is:
A.
B.
C.
D.
Answer: B