SSC JE Mechanical Engineering 25th Jan 2018 Shift-2

Instructions

For the following questions answer them individually

Question 151

The corrosion resistance property of stainless steel is due to the presence of

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Question 152

............ is a copper free alloy.

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Question 153

Babbit metal is alloy of

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Question 154

Greyiron is usually welded by

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Question 155

Arc blow is a welding defect which is encountered

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Question 156

The main function of cutting fluid is

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Question 157

A transfer machine

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Question 158

The cutting speed is equal to (Where, D = diameter of job in mm N = Spindle or job speed in rpm)

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Question 159

When the file is pushed and pulled across the work,it is called:

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Question 160

Why are jigs and fixtures used?

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