MANUFACTURING AND PRODUCTION TECHNOLOGY QUIZ

A coarse grained grinding wheel is used to grind

Soft and ductile materials

Hard and brittle materials

Hard and ductile materials

Soft and brittle materials

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A type of welding flows, which is the result of a perfect proportion and mixture of acetylene and oxygen and is used for fusion welding of steel and cast iron, is

Oxidizing flame

Carburizing flame

Neutral flame

Oxy-acetylene flame

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Hardness of green sand mould increases with

Decrease in permeability

Increase in moisture content beyond 6 percent

Increase in both moisture content and permeability

Increase in permeability

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In drilling aluminium, a drill with

High helix angle is used

Zero helix angle is used

Any helix angle can be used

Low helix angle is used

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Internal gear cutting operation can be performed by

Shaping with rack cutter

Hobbing

Milling

Shaping with pinion cutter

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Thread grinding requires work speed from

5 to 10 m/min

1 to 3 m/min

14 to 20 m/min

10 to 14 m/min

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The structure of a grinding wheel depends upon

Finish required

All of these

Hardness of the material being ground

Nature of the grinding operation

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In gear hobbing

Both hob and gear blank rotates

Only hob rotates

Neither hob nor gear blank rotates

Only gear blank rotates

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A grinding wheel is said to be of _________ if the abrasive grains can be easily dislodged.

None of these

Medium grade

Soft grade

Hard grade

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The chamfering is an essential operation after

Rough turning

Thread cutting

Boring

Knurling

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YOUR ANSWER : ?

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