550+ Machining-and-machine-tool-operations Questions

Machining-and-machine-tool-operations Questions Set 31:

Quiz Mode

In which of these machining processes is material removal negligible?

Drilling

Turning

Facing

Surface finishing

Solution:

Which type of file is commonly used for woodworking?

Single-cut file

Rasp-cut file

Double-cut file

Triplet file

Solution:

The cutting speed (in m/min) above which tool A will have a higher tool life than tool B is

26.7 m/min

42.5 m/min

80.7 m/min

142.9 m/min

Solution:

What happens to tool life when the back rake angle (α) is increased?

Tool life increases

Tool life decreases

Tool life is not affected

Cannot be determined

Solution:

What type of gear boxes does a column drill machine typically have?

Speed gear box

Both speed gear box and feed gear box

Feed gear box

None of the mentioned

Solution:

The ______ generally does not remain a constant throughout the recrystallization process.

strain energy

activation energy

threshold energy

recrystallization energy

Solution:

The relationship of the shear angle ϕ with the rake angle ∝ and friction angle β is given by the equation:

Erns-Merchant theory

Merchant's theory

Stabler theory

Lee and Shaffer theory

Solution:

A piece of metal 2.5 mm thick is bent to an angle of 90 degrees with an inner radius of 6.5 mm. What is the original length of metal which goes into the bend?

18.23 mm

16.25 mm

12.17 mm

10.00 mm

Solution:

In which of the following zones is maximum heat (i.e. 80-85%) generated during metal cutting operation?

The chip-tool interface zone

The tool-work interface zone

The shear zone

None of the above

Solution:

Which type of milling machine can perform surfacing more effectively?

Vertical Milling Machine

Horizontal Milling Machine

Both Vertical and Horizontal Milling Machines can perform surfacing effectively

None of the above

Solution:

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Machining-and-machine-tool-operations Questions Set 31:

In which of these machining processes is material removal negligible?

Solution:

Which type of file is commonly used for woodworking?

Solution:

The cutting speed (in m/min) above which tool A will have a higher tool life than tool B is

Solution:

What happens to tool life when the back rake angle (α) is increased?

Solution:

What type of gear boxes does a column drill machine typically have?

Solution:

The ______ generally does not remain a constant throughout the recrystallization process.

Solution:

The relationship of the shear angle ϕ with the rake angle ∝ and friction angle β is given by the equation:

Solution:

A piece of metal 2.5 mm thick is bent to an angle of 90 degrees with an inner radius of 6.5 mm. What is the original length of metal which goes into the bend?

Solution:

In which of the following zones is maximum heat (i.e. 80-85%) generated during metal cutting operation?

Solution:

Which type of milling machine can perform surfacing more effectively?

Solution:

Related Question Sets:

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