Workshop Technology In welding magnesium with TIG arc welding, direct current with ________ is used. Straight polarity None of these Reversed polarity Both (A) and (B) Straight polarity None of these Reversed polarity Both (A) and (B) ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology The welding set up is said to have straight polarity, when Work is connected to the positive terminal and the electrode holder to the negative terminal Work is connected to the negative terminal and the electrode holder to the positive terminal Work is connected to the negative terminal and the electrode holder is earthed Work is connected to the positive terminal and the electrode holder is earthed Work is connected to the positive terminal and the electrode holder to the negative terminal Work is connected to the negative terminal and the electrode holder to the positive terminal Work is connected to the negative terminal and the electrode holder is earthed Work is connected to the positive terminal and the electrode holder is earthed ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology Cast iron and steel pipes are produced by Slush casting Die casting Investment casting True centrifugal casting Slush casting Die casting Investment casting True centrifugal casting ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology The diaphragm moulding machine is used to Give uniform sand hardness throughout the mould Produce uniform packing of sand in the mould Ram the sand harder at the pattern face with decreasing hardness towards the back of the mould Ram the sand harder at the back of the mould and softer on the pattern face Give uniform sand hardness throughout the mould Produce uniform packing of sand in the mould Ram the sand harder at the pattern face with decreasing hardness towards the back of the mould Ram the sand harder at the back of the mould and softer on the pattern face ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology Most of the oxyacetylene welding is done with Oxidizing flame All of these Carburising flame Neutral flame Oxidizing flame All of these Carburising flame Neutral flame ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology When filing soft metals, the file teeth are clogged with minute particles of metal. The file should be cleaned by Using file card Washing it with water Washing it with dilute acid Rubbing on wood Using file card Washing it with water Washing it with dilute acid Rubbing on wood ANSWER DOWNLOAD EXAMIANS APP
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