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ISRO ME 2019 Manufacturing Quiz 3

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Question 1

The rake angle of a cutting tool is 15°, shear angle 45° and cutting velocity 35 m/min. The velocity of chip along the tool face is _____ m/min.

Question 2

Roughness grade number N10 represent which roughness grade value Ra(in micrometer)

Question 3

A cup of 150 mm diameter and 200 mm height is to be drawn by a deep drawing operation. the blank diameter and no of reduction step required:

Question 4

A cast-iron work-piece was machined along its length on a Shaper machine, The dimensions of work-piece is length 150 mm, width 50 mm, and height 20 mm. If the cutting force required is 1000 N, determine the power consumed per stroke if the operation is carried at 50 strokes/min.

Question 5

In a limit system, the following limits are specified to give a clearance fit between a shaft and a hole.

What is the ratio of maximum to minimum clearance______?

Question 6

Plastics bottles are made using______.

Question 7

If the proportion of oxygen is less than the proportion of acetylene is oxy acetylene gas welding, the flame produced is ________.

Question 8

In turning operation, the typical ratio of heat generated in chip, tool and work piece is in the order of:

Question 9

A cup is drawn through blank having draw ratio of 3, having height of 20 mm. Calculate the diameter of blank?

Question 10

The frequency of the vibrations generated by the transducer in ultra-sonic machining will in the order of ______.
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Sep 15ESE & GATE ME