Addition (AQA GCSE Design and Technology): Quizzes
📚Quizzes
Practise the questions
13 questions from this quiz
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Practise the questions
13 questions from this quiz
What does addition involve when connecting metals?
What does addition involve when connecting metals?
Melting & fusing metals to create joints
What are the three main addition processes used in metalworking?
What are the three main addition processes used in metalworking?
Welding, brazing, hard soldering
Which addition process creates the strongest type of joint?
Which addition process creates the strongest type of joint?
Welding
What current range does arc welding use?
What current range does arc welding use?
10-120 amps
What is the purpose of shielding gas in arc welding?
What is the purpose of shielding gas in arc welding?
Prevents oxygen reaching the hot metal
What gas is burned in oxy-fuel welding to create the flame?
What gas is burned in oxy-fuel welding to create the flame?
Acetylene
What is the purpose of the filler rod in oxy-fuel welding?
What is the purpose of the filler rod in oxy-fuel welding?
Adds material to strengthen the joint
What temperature is used in the brazing process?
What temperature is used in the brazing process?
875°C
What alloy is used as filler in brazing?
What alloy is used as filler in brazing?
Copper and zinc
What is the first step in the brazing process?
What is the first step in the brazing process?
Clean surfaces with abrasive paper
Why is flux (borax) applied during brazing?
Why is flux (borax) applied during brazing?
Prevents oxidation & helps alloy flow
What type of metals is hard soldering particularly suitable for?
What type of metals is hard soldering particularly suitable for?
Metals with low melting points
Which addition method works at the lowest temperatures?
Which addition method works at the lowest temperatures?
Hard soldering