If the soldering copper is an old one, or has become corroded, it must be ground or filed to a point. [Please select]
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In soldering galvanized iron, the pure muriatic acid should be used, particularly so when the iron has once been used. [Please select]
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The solder is caused to make a perfect union with the surfaces treated with the help of heat from a soldering iron. [Please select]
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A new soldering iron or one that has been misused will have to be "tinned" before using. [Please select]
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This soldering acid may be used on any metal to be soldered by applying with a brush or swab. [Please select]
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Sweating is much to be preferred to ordinary soldering where the form of the work permits it. [Please select]
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It will leave the soldering iron and stick to the metal. [Please select]
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The aluminum must be thoroughly heated before attempting to solder and the flux may be either resin or soldering acid. [Please select]
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And it was while Nature was engaged in this soldering operation that Mahng arrived and began to cultivate the widow's acquaintance. [Please select]
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You may purchase the Y at any of the naturalists' stores, or you can make one yourself if you know how to perform the operation of soldering. [Please select]
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The three pieces must be filed off at the proper angles, and the doubly bevelled end of the wider tube must then be flattened down to the width of the smaller ones before soldering. [Please select]
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