Manufacturing and Production Technology - Mechanical Engineering Questions and Answers

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The operation performed on a shaper is

Machining horizontal surface

Machining vertical surface

Machining angular surface

All of these

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A push broach as compared to pull broach

Has less number of teeth

Is short and stocky

Removes less material for each pass of the tool

All of the above

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The chuck used for setting up of heavy and irregular shaped work should be

Four jaw independent chuck

Three jaw universal chuck

Magnetic chuck

Drill chuck

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The cutting speed for drilling aluminium, brass and bronze with carbon steel drills is _________ cutting speed for drilling mild steel with high speed steel drills.

Equal to

Less than

More than

None of these

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The average cutting speed for turning brass with a high speed steel tool is

15 to 19 m/min

25 to 31 m/min

60 to 90 m/min

90 to 120 m/min

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The average cutting speed for turning mild steel with a high speed steel tool is

15 to 19 m/min

25 to 31 m/min

60 to 90 m/min

90 to 120 m/min

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The rake angle required to machine brass by high speed steel tool is

0°

10°

20°

100°

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If the helix angle of the drill is made ________ 30°, then the torque required to drive the drill at a given feed will be more.

Equal to

Less than

More than

None of these

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What is the type of shielding gas for GTAW (Gas Tungsten Arc Welding) used for carbon steels only called?

Argon H₂

Argon CO₂

Argon Helium

Helium