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Joining Questions Set 12:

Quiz Mode

In spot welding, the spacing between two spot welds should not be less than:

1.5d

Solution:

What is the correct temperature (in °C) of the filler material used in brazing?

160°C

427°C

800°C

1200°C

Solution:

Which inert gas is used for shielding in TIG (Tungsten Inert Gas) welding?

Hydrogen

Argon

Oxygen

Nitrogen

Solution:

Which of the following materials cannot be welded by friction welding?

Aluminium

Copper

Stainless steel

Non-forgeable materials

Solution:

The power supply for gas metal arc welding is always a

constant voltage

constant current

none of the above

both constant voltage and constant current

Solution:

Weldability of cast iron is quite low. Which welding techniques are suitable for cast iron?

Brazing

Gas welding

Brazing and gas welding

None of the above

Solution:

Laser beam welding is particularly suitable for welding deep and narrow joints because the laser beam can be focused to a diameter as small as:

1 mm

100 µm

10 µm

5 µm

Solution:

Penetration in the welds can be improved by:

increasing the rate of heat input

lowering the welding speed

all of the above

ensuring proper fitment and alignment of weld surfaces

Solution:

Which of the following statements about MIG welding is not true?

Consumable metal electrode is used

Filler material is in the form of wire

Both AC and DC currents can be used

Speed of welding is fast

Solution:

Which of the following statements about friction stir welding is not true?

It is a solid state process

Fine grained structures can be obtained

It eliminates friction welding problems

It alters the chemical composition of the workpiece

Joining Questions Set 12:

In spot welding, the spacing between two spot welds should not be less than:

Solution:

What is the correct temperature (in °C) of the filler material used in brazing?

Solution:

Which inert gas is used for shielding in TIG (Tungsten Inert Gas) welding?

Solution:

Which of the following materials cannot be welded by friction welding?

Solution:

The power supply for gas metal arc welding is always a

Solution:

Weldability of cast iron is quite low. Which welding techniques are suitable for cast iron?

Solution:

Laser beam welding is particularly suitable for welding deep and narrow joints because the laser beam can be focused to a diameter as small as:

Solution:

Penetration in the welds can be improved by:

Solution:

Which of the following statements about MIG welding is not true?

Solution:

Which of the following statements about friction stir welding is not true?

Solution:

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