Which of the two techniques given below is faster, more flexible and less inexpensive than the other technique for producing small quantities of 3D parts?

Which is the slowest process among the following?

Gold and silver are mostly processed in the form in 3D printing.

In which of the following processes is a plastic filament melted and then deposited. one layer at a time onto a build platform via a heated extruder?

Which of the following statements is NOT true about Objet's PolyJet system?

Which of the following is/are NOT (an) advantage(s) of laser melting?

Which of the two techniques given below is faster, more flexible and less inexpensive than the other technique for producing small quantities of 3D parts?