| 1. | The purpose of a gate is to ? | |
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deliver molten metal into the mould cavity
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act as a reservoir for the molten metal
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feed the molten metal to the casting in order to compensate for the shrinkage
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deliver molten metal from pouring basin to gate
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Report Question| 2. | The consumable electrode is used in ? | |
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carbon arc welding
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submerged arc welding
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TIG arc welding
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MIG arc welding
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| 3. | The dowels are ? | |
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wooden nails
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box nails
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wire nails
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none of these
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| 4. | The blank diameter used in thread rolling will be ? | |
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equal to minor diameter of the thread
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equal to pitch diameter of the thread
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a little larger than the minor diameter of the thread
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a little larger than the pitch diameter of the thread
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| 5. | For welding plates of thickness more than 12.5 mm, its edges ? | |
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do not require bevelling
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should be bevelled to a single-V or U-groove
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should have a double-V or U-groove on one side
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should have a double-V or U-groove on both sides
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| 6. | In arc welding, the electric arc is produced between the work and the electrode by ? | |
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voltage
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flow of current
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contact resistance
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all of these
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| 7. | The surface to be machined is marked on the pattern by ? | |
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red colour
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yellow colour
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black colour
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blue colour
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| 8. | A sand employed on the faces of the pattern before moulding, is called ? | |
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green sand
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dry sand
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loam sand
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parting sand
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| 9. | For arc welding ? | |
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alternating current with high frequency is used
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alternating current with low frequency is used
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direct current is used
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any one of these
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| 10. | A neutral flame is obtained by supplying ? | |
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equal volumes of oxygen and acetylene
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more volume of oxygen and less volume of acetylene
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more volume of acetylene and less volume of oxygen
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none of the above
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