Manufacturing And Production Technology
When two main plates are kept in alignment butting each other and riveted with cover plate on both sides of the main plates with two rows of rivets in each main plate, the joint is known as _______ double cover butt joint.

None of these
Both (A) and (B)
Double riveted
Single riveted

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Manufacturing And Production Technology
In ultrasonic machining, the metal is removed by

Direct contact of tool with the work
Maintaining an electrolyte between the work and tool in a very small gap between the two
Using abrasive slurry between the tool and work
Erosion caused by rapidly recurring spark discharges between the tool and work

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Manufacturing And Production Technology
Glazing in grinding wheels can be decreased by

Using a softer wheel or by increasing the wheel speed
Using a harder wheel or by increasing the wheel speed
Using a harder wheel or by decreasing the wheel speed
Using a softer wheel or by decreasing the wheel speed

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