MCQOPTIONS
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				| 1. | 
                                    During soldering, the solidus temperature of the filler material should be_____________? | 
                            
| A. | Greater than the substrate material | 
| B. | Lesser than the substrate material | 
| C. | Equal to the substrate material | 
| D. | Temperature not relevant | 
| Answer» C. Equal to the substrate material | |