MCQ - TNPSC JTO
JTO - 440 - Welder
440 - Unit VIII Arc Welding Electrode
81)
If preheat is not applied when required:
A.
B.
C.
D.
82)
In thick sections, preheating reduces:
A.
B.
C.
D.
83)
Hydrogen cracking is more likely at:
A.
B.
C.
D.
84)
Preheating is generally NOT required for:
A.
B.
C.
D.
85)
Preheat temperature depends on:
A.
B.
C.
D.
86)
Post heating refers to:
A.
B.
C.
D.
87)
Purpose of post heating:
A.
B.
C.
D.
88)
Post heating temperature for hydrogen removal is generally:
A.
B.
C.
D.
89)
Post heating for stress relief is often called
A.
B.
C.
D.
90)
Post heating is particularly important for:
A.
B.
C.
D.
91)
Skipping post heating when required can cause:
A.
B.
C.
D.
92)
Post heating reduces:
A.
B.
C.
D.
93)
Post heating in cast iron welding helps to:
A.
B.
C.
D.
94)
Stress-relief heat treatment temperature for carbon steel:
A.
B.
C.
D.
95)
During post heating, slow cooling is achieved by:
A.
B.
C.
D.
96)
Interpass temperature means:
A.
B.
C.
D.