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GATE 2019: Manufacturing Quiz 7- Theory

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Question 1

In Cutting Fluid, emulsions with little oil diluted with water is:

Question 2

Friction at the tool-chip interface can be reduced by

Question 3

A built-up-edge is Moderate while machining

Question 4

Consider just only the following parameters:
1) Grinding wheel diameter
2) Regulating wheel diameter
3) Speed of grinding wheel
4) Speed of regualting wheel
Which of the above parameters will influence the axial feed rate in centreless grinding?

Question 5

Consider the following statements regarding milling machine:
1. In the vertical milling machine. It is possible to machine dovetail recesses.
2. In universal milling machine, the worktable can be swiveled.
3. In rotary milling machine, motion imparted to work is rotary.
4. Planer milling machine is provided with several horizontal and vertical heads.
Which of the above statements are correct?

Question 6

Consider the following statements:
An increase in the cobalt content in the straight carbide grades of carbide tools
1. increases the hardness
2. decreases the hardness
3. increases the transverse rupture strength
4. lowers the transverse fupture strength
Which of these statements are correct?

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ESE & GATE ME Manufacturing & Engg materials

Jun 24ESE & GATE ME