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 is earthed Work is connected to the positive terminal and the electrode holder is earthed Work is connected to the negative terminal and the electrode holder to the positive terminal 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 is earthed Work is connected to the positive terminal and the electrode holder is earthed Work is connected to the negative terminal and the electrode holder to the positive terminal ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology A casting defect which occurs near the ingates as rough lumps on the surface of a casting is known as Sand wash Swell Shift Scab Sand wash Swell Shift Scab ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology In die casting, machining allowance is Very large Not provided Large Small Very large Not provided Large Small ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology Blanking and piercing operations can be performed simultaneously in a Simple die Progressive die Compound die Combination die Simple die Progressive die Compound die Combination die ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology During hot working of metals All of the listed here Porosity of the metal is largely eliminated Grain structure of the metal is refined Mechanical properties are improved due to refinement of grains All of the listed here Porosity of the metal is largely eliminated Grain structure of the metal is refined Mechanical properties are improved due to refinement of grains ANSWER DOWNLOAD EXAMIANS APP
Workshop Technology For welding plates of thickness less than 5 mm, its edges Should be bevelled to a single-V or U-groove Should have a double-V or U-groove on one side Should have a double-V or U-groove on both sides Do not require bevelling Should be bevelled to a single-V or U-groove Should have a double-V or U-groove on one side Should have a double-V or U-groove on both sides Do not require bevelling ANSWER DOWNLOAD EXAMIANS APP
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