| 1. | In welding copper alloys with TIG arc welding ? | |
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direct current with straight polarity is used
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direct current with reversed polarity is used
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alternating current is used
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any one of these
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Report Question| 2. | The flux commonly used in brazing is ? | |
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zinc chloride
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ammonium chloride
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rosin plus alcohol
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borax
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| 3. | Galvanising is a ? | |
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zinc diffusion process
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process of coating zinc by hot dipping
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process used for making thin phosphate coating on steel
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none of the above
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| 4. | Linde welding uses ? | |
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neutral flame and right-ward technique
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oxidising flame and left-ward technique
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neutral flame and left-ward technique
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carburising flame and right-ward technique
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| 5. | A ring gauge is used to ? | |
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check the diameter of shafts or studs
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test the accuracy of holes
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check the clearance between two mating surfaces
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all of the above
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| 6. | The teeth of hacksaw blade are bent ? | |
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towards right
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towards left
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alternately towards right and left and every third or fourth left straight
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may be bent in any direction
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| 7. | The algebraic difference between the maximum limit and the basic size is called ? | |
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actual deviation
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upper deviation
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lower deviation
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fundamental deviation
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| 8. | The type of file used for a wood work is ? | |
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single-cut file
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double cut file
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rasp-cut file
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all of these
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| 9. | A diamond pointed chisel is used for cutting ? | |
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flat surfaces
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grooves
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keyways
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V-shaped grooves
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| 10. | Notching is the operation of ? | |
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cutting a sheet of metal in a straight line along the length
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removal of metal to the desired shape from the edge of a plate
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cutting a sheet of metal through part of its length and then bending the cut portion
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bending a sheet of metal along a curved axis
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