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Manufacturing And Production Technology

Manufacturing And Production Technology
In ultrasonic machining, tool is made of

Stainless steel
Diamond
Tungsten carbide
Brass or copper

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Manufacturing And Production Technology
A CNC vertical milling machine has to cut a straight slot of 10 mm width and 2 mm depth by a cutter of 10 mm diameter between points (0,0) and (100,100) on the XY plane (dimensions in mm). The feed rate used for milling is 50 mm/min, milling time for the slot (in seconds) is

180
120
170
240

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Manufacturing And Production Technology
In electro-discharge machining, dielectric is used to

Help in the movement of the sparks
Act as coolant
All of these
Control the spark discharges

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Manufacturing And Production Technology
Two plates of the same metal having equal thickness are to be butt welded with electric arc. When the plate thickness changes, welding is achieved by

Changing the electrode coating
Changing the electrode size
Adjusting the current
Adjusting the duration of current

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Manufacturing And Production Technology
In a gating system, the ratio 1: 2: 4 represents

Runner area: ingate area: casting area
Sprue base area: runner area: ingate area
Pouring basin area: ingate area: runner area
Sprue base area: ingate area: casting area

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Manufacturing And Production Technology
In order to prevent tool from rubbing the work ___ on tools are provided.

Face angles
None of the listed here
Rake angles
Relief angles

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