Thermit welding is often used in

A Replacing broken gear teeth
B Repairing broken shears
C Joining rails, truck frames and locomotive frames etc.
D All of the above

Correct Answer: All of the above

Thermit welding is a welding process that employs molten metal to permanently join the conductors.
The process employs an exothermic reaction of a thermite composition to heat the metal, and requires no external source of heat or current.
Thermit welding is often used in replacing broken gear teeth, repairing broken shears and joining rails, truck frames and locomotive frames etc.
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Related Questions

Thermit, used in Thermit welding, is a mixture of
A Charcoal and iron oxide
B Charcoal and aluminium
C Iron oxide and aluminium
D Charcoal, iron oxide and aluminium
The advantage of thermit welding is that
A All parts of the weld section are molten at the same time
B Weld cools almost uniformly
C Results in a minimum problem with internal residual stresses
D All of the above
In backhand welding, the angle between the welding rod and the work is ________ as compared to forehand welding.
A Same
B Less
C More
D None of these
In forehand welding, the angle between the welding torch and the work is ________ as compared to backhand welding.
A Same
B Less
C More
D None of these
If the flame of the welding torch is directed towards the progress of welding, then what will you call the welding technique?
A Forehand welding
B Flux cored ARC welding
C Electro slag welding
D Pulsed spray welding
In DC arc welding, if leads are arranged in work as Negative pole of the welding arc and electrode as Positive pole of the welding arc, the arrangement is known as
A Fusion
B Reverse polarity
C Forward welding
D Direct polarity
A type of welding flows, which is the result of a perfect proportion and mixture of acetylene and oxygen and is used for fusion welding of steel and cast iron, is
A Carburizing flame
B Oxidizing flame
C Oxy-acetylene flame
D Neutral flame
Spot welding is used for welding
A Lap joints in plates having 0.025 mm to 1.25 mm thickness
B Lap joints in plates having thickness above 3 mm
C Butt joints in plates having 0.025 mm to 1.25 mm thickness
D Butt joints in plates having thickness above 3 mm
In welding magnesium with TIG arc welding, direct current with ________ is used.
A Straight polarity
B Reversed polarity
C Both (A) and (B)
D None of these
In which type of welding a gas shield, a consumable electrode is used and the welding can be done in all positions.
A ARC welding
B Submerged ARC welding
C TIG welding
D MIG welding

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