REPAIRING TECHNIQUE - Quiz

1) What is the percentage of copper in malachite ore?

0.2 0.3 0.55 0.8

2) Which metal is basically an alloy of copper and tin?

Lead Brass Muntz Bronze

3) Why copper is extensively used in electrical cables and appliances?

Ductile metal Cheap in cost Easy soldering Good conductor

4) Which metal is extracted from cassterite?

Tin Lead Copper Aluminium

5) Which coupling will have disengaging provision?

Clamp coupling Slip type coupling Universal coupling Plate coupling