MCQ - TNPSC JTO
JTO - 440 - Welder
440 - Unit X Gas Tungsten Arc Welding
49)
A centre punch is used to
A.
B.
C.
D.
50)
An isometric drawing shows an object in
A.
B.
C.
D.
51)
In GTAW, the tungsten electrode is:
A.
B.
C.
D.
52)
Which shielding gas is most commonly used in GTAW?
A.
B.
C.
D.
53)
In GMAW (CO₂ welding), the electrode is supplied in:
A.
B.
C.
D.
54)
Which process uses a molten slag bath for welding?
A.
B.
C.
D.
55)
GTAW is preferred for welding:
A.
B.
C.
D.
56)
In GTAW, high-frequency current is often used for:
A.
B.
C.
D.
57)
Submerged arc welding hides the arc under:
A.
B.
C.
D.
58)
Thermit welding is based on:
A.
B.
C.
D.
59)
Which welding method is commonly used for joining railway tracks?
A.
B.
C.
D.
60)
Resistance spot welding produces heat according to:
A.
B.
C.
D.
61)
In seam welding, the electrodes are:
A.
B.
C.
D.
62)
Projection welding uses:
A.
B.
C.
D.
63)
Flash butt welding uses:
A.
B.
C.
D.
64)
Friction welding joins metals by:
A.
B.
C.
D.