| 1. | Select the spindle speed (rpm) for HSS drill diameter +24 mm and cutting speed (v) 30m/min to drill mild steel ? | |
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300 rpm
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400 rpm
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500 rpm
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600 rpm
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Report Question| 2. | An ideal machining allowance for finishing boring will be _____ ? | |
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1 mm to 2 mm
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0.5 mm to 1 mm
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0.25 mm to 0.50 mm
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0.10 mm to 0.25 mm
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| 3. | Trimming is the process associated with ? | |
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forging
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press work
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machining
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electroplating
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| 4. | The machining method which uses abrasive slurry is ? | |
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Electro-discharge machining
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Ultrasonic machining
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Plasma arc machining
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Electrochemical machining
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| 5. | You have to machine a flat surface on a work piece of two meters length. Which machine will you choose for this ? | |
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planning
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slotting
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shaping
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milling
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| 6. | C.N.C machine are not manually operated. They are controlled by means of ________ ? | |
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A program
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An operator
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A cam
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A plug board system
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| 7. | In metal cutting operation discontinuous chips are produced while machining ? | |
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brittle material
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ductile material
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hard material
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soft material
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| 8. | The process of turning an edge on a circular piece of metal is known as ? | |
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Burring
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Braising
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Embossing
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Punching
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| 9. | What is the unit of cutting speed ? | |
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m/min
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m/sec
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mm/min
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mm/sec
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