Soldering & Brazing (Junior Cert Engineering): Quizzes
📚Quizzes
Practise the questions
13 questions from this quiz
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Practise the questions
13 questions from this quiz
What two metals make up soft solder?
What two metals make up soft solder?
Lead and tin
At what temperature does soft solder typically begin to melt?
At what temperature does soft solder typically begin to melt?
What does active flux do during soldering?
What does active flux do during soldering?
Removes and prevents oxides
What type of work is resin-cored solder particularly useful for?
What type of work is resin-cored solder particularly useful for?
Electrical and electronic work
Why is the soldering iron bit made of copper?
Why is the soldering iron bit made of copper?
Good heat conduction & solder affinity
How should non-ferrous metals be cleaned before soldering?
How should non-ferrous metals be cleaned before soldering?
With emery cloth or wire wool
What indicates a soldering iron is ready for tinning?
What indicates a soldering iron is ready for tinning?
A green flame appears around it
What metals are silver solders made from?
What metals are silver solders made from?
Silver, copper and zinc
What is the melting temperature range for silver solder?
What is the melting temperature range for silver solder?
to
What is the common composition of spelter used in brazing?
What is the common composition of spelter used in brazing?
copper and zinc
At approximately what temperature does spelter melt?
At approximately what temperature does spelter melt?
What must parts have for capillary action to work properly?
What must parts have for capillary action to work properly?
A close fit together
Why aren't thermoplastic adhesives suitable for some applications?
Why aren't thermoplastic adhesives suitable for some applications?
Not suitable for high temperatures