MCQ - TNPSC JTO
JTO - 440 - Welder
440 - Unit VIII Arc Welding Electrode
33)
Moisture pickup increases the risk of:
A.
B.
C.
D.
34)
If an electrode absorbs moisture, before use it should be:
A.
B.
C.
D.
35)
Moisture content in low-hydrogen electrodes should be kept below:
A.
B.
C.
D.
36)
Electrodes should be stored in:
A.
B.
C.
D.
37)
Ideal storage temperature for low-hydrogen electrodes is:
A.
B.
C.
D.
38)
Opened packets of low-hydrogen electrodes should be used within:
A.
B.
C.
D.
39)
Damaged electrode coating leads to:
A.
B.
C.
D.
40)
Baking of low-hydrogen electrodes is done to:
A.
B.
C.
D.
41)
For general purpose rutile electrodes, storage temperature can be:
A.
B.
C.
D.
42)
Baking temperature for low-hydrogen electrodes is usually:
A.
B.
C.
D.
43)
Baking duration is typically:
A.
B.
C.
D.
44)
Over-baking electrodes may cause:
A.
B.
C.
D.
45)
Before baking, electrodes should be:
A.
B.
C.
D.
46)
If electrodes are baked at too low a temperature:
A.
B.
C.
D.
47)
Baking ovens should have:
A.
B.
C.
D.
48)
Electrodes should be baked:
A.
B.
C.
D.