MCQ - TNPSC JTO
JTO - 440 - Welder
440 - Unit II Different Process of Metal Joining Methods
65)
High thermal conductivity materials
A.
B.
C.
D.
66)
Cold cracking is caused by
A.
B.
C.
D.
67)
Hot cracking occurs
A.
B.
C.
D.
68)
The coefficient of thermal expansion measures
A.
B.
C.
D.
69)
In welding, faster cooling rates can cause
A.
B.
C.
D.
70)
Annealing after welding is done to
A.
B.
C.
D.
71)
Arc welding works on
A.
B.
C.
D.
72)
Arc temperature in welding is
A.
B.
C.
D.
73)
Arc is produced between
A.
B.
C.
D.
74)
Open Circuit Voltage (OCV) in arc welding is typically
A.
B.
C.
D.
75)
Arc stability means
A.
B.
C.
D.
76)
Short arc length can cause
A.
B.
C.
D.
77)
Long arc length results in
A.
B.
C.
D.
78)
Arc blow is more common in
A.
B.
C.
D.
79)
Arc blow is caused by
A.
B.
C.
D.
80)
Anode in arc welding gets
A.
B.
C.
D.