Joining Questions Set 10:
Which part of a fillet welded joint is the weakest area?
Solution:
Which of the following materials is not used in making rivets?
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In oxyacetylene welding, the tubing for acetylene is made of what material?
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In back-hand welding, what is the angle between the welding torch and the work kept as?
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In a gas welding of mild steel using an oxyacetylene flame, the total amount of acetylene consumed was 10 liters. The oxygen consumption from the cylinder is
Solution:
The first sub-zone in the heat-affected zone (HAZ) of the metal nearest the weld metal deposit will consist of:
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In an arc welding process, the voltage is 30 V and the current is 250 A. The arc heat transfer efficiency is 0.78, and the welding speed is 10 mm/s. What is the heat input in this process (in J/mm)?
Solution:
Consider the following data for an arc welding operation:
Voltage (V) = 25 V
Current (I) = 300 A
Arc heat transfer efficiency (η) = 0.85
Welding speed (N) = 8 mm/s
Calculate the heat input (in J/mm).
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In welding terminology, the term 'type of joint' refers to:
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To start the arc in gas welding,
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