Manufacturing and Production Technology - Mechanical Engineering Questions and Answers

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The actual feed in centerless grinders is given by (where d = Dia. of regulating wheel, n = Revolutions per minute, and α = Angle of inclination of wheel)

πd

πdn

πdn sinα

πdn cosα

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In order to grind soft material

Coarse grained grinding wheel is used

Fine grained grinding wheel is used

Medium grained grinding wheel is used

Any one of these

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The in-feed grinding is used to

Produce tapers

Grind shoulders and formed surfaces

Grind long, slender shafts or bars

All of these

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The cutting tool in a milling machine is mounted on

Spindle

Arbor

Column

Knee

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It is desired to perform the operations like drilling, reaming, counter-boring etc. on a work piece. Which of the following machine will be used?

Sensitive drilling machine

Radial drilling machine

Gang drilling machine

Multiple spindle drilling machine

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In which of the following machine, the work is usually rotated while the drill is fed into work?

Sensitive drilling machine

Radial drilling machine

Gang drilling machine

Deep hole drilling machine

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Crater wear is predominant in

Carbon tool steels

Tungsten carbide tools

High speed steel tools

Ceramic tools

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In a shaper, the metal is removed during

Forward stroke

Return stroke

Both the forward and return strokes

Neither the forward nor the return stroke

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The type of reamer used for reaming soft aluminium or copper, is

Straight fluted reamer

Left hand spiral fluted reamer

Right hand spiral fluted reamer

Any one of these