MANUFACTURING AND PRODUCTION TECHNOLOGY QUIZ

A _________ grinding wheel is used to grind soft materials.

Medium grained

Course grained

None of these

Fine grained

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Crater wear is predominant in

High speed steel tools

Ceramic tools

Carbon tool steels

Tungsten carbide tools

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The relation between the tool life (T) in minutes and cutting speed (V) in m/min is (where n = An exponent, which depends upon the tool and workpiece, and C = A constant)

V/Tn = C

VTn = C

VnT = C

Vn/T = C

TRUE ANSWER : ?
YOUR ANSWER : ?

The factor responsible for the formation of discontinuous chips is

High cutting speed and small rake angle

Low cutting speed and large rake angle

High cutting speed and large rake angle

Low cutting speed and small rake angle

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Cutting fluids are used to

All of these

Improve surface finish

Cool the tool

Cool the workpiece

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The process of changing the shape of grinding wheel as it becomes worn due to breaking away of the abrasive and bond, is called

Dressing

Clearing

Truing

Facing

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The silicon carbide abrasive is chiefly used for grinding

All of these

Cast iron

Ceramic

Cemented carbide

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The cutting fluid mostly used for machining steel is

Dry

Heavy oils

Soluble oil

Water

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The cutting speed for counter-boring should be _________ that of drilling operation.

Equal to

Less than

None of these

Greater than

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The operation performed on a shaper is

All of these

Machining horizontal surface

Machining angular surface

Machining vertical surface

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YOUR ANSWER : ?

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