In screen printing, the basic optimum exposure time is 4 minutes at a lamp distance of I meter and if the distance is increased to 2 meters. Calculate the new exposure time.

The printing process that produces an image by transfering individual drops of ink from an opening through airgap to a printing surface

----------- is a term used to describe the jagger edges which are sometimes produced in prints that are made from direct stencils.

On-contact printing in screen printing process is done with 

In double twill weaving structure in screen fabric, each thread

After exposure, gelatine films must be processed in an oxidizing solution of