Pulp and Paper Multiple Choice Questions on “Screen Printing and Other Methods”.
1. Screen printing utilizes a ___________ to control the location of the ink.
a) Layer
b) Mask
c) Point
d) Spot
Answer: b
Clarification: Screen printing is a printing method that utilizes a plate (screen mask) that utilizes a screen mesh, which is woven with synthetic fibers or metal fibers. It is a type of stencil printing, which prints on objects by passing ink through the mesh of a screen mask.
2. ___________ is the only commonly utilized stencil printing method utilized. It utilizes a fine mesh screen mounted to a frame.
a) Copper screen printing
b) Zinc screen printing
c) Silk screen printing
d) Linen screen printing
Answer: c
Clarification: It’s is a printing technique whereby a mesh is utilized to transfer ink onto a substrate, except in areas which are made impermeable to the ink by a blocking stencil.
3. The ___________ is held against the surface to be printed, and ink is forced through the ___________ (and supporting screen) with utilize of a squeegee.
a) Pin
b) Stencil
c) Point
d) Impression
Answer: b
Clarification: It’s the process of depositing solder paste on the printed wiring boards (P.W.B.) to establish electrical connections. Then quickly followed by the component placement stage.
4. Mimeographing is the other common method of stencil printing, although it is seldom utilized anymore.
a) True
b) False
Answer: a
Clarification: A thick layer of ink that gives a nice impression on virtually any material is obtained. It’s a low-cost duplicating machine that is put into action by forcing the ink through a stencil onto paper.
5. The ___________ process was introduced by the Xerox company in 1960.
a) Ink jet printer
b) Photocopy
c) Printhead
d) Ribbons
Answer: b
Clarification: An image is produced on a charged drum by means of a light source that scans the surface of the document and, by means of optics, reflects the light to the charged drum.
6. ___________ spray the ink directly through a series of holes onto the surface of paper as the printhead scans back and forth across the paper.
a) Ink jet printer
b) Photocopy
c) Thermal printers
d) Ribbons
Answer: a
Clarification: It’s a type of computer printing that recreates a digital image by propelling droplets of ink onto paper. It’s the most widely utilized printer.
7. ___________ printers utilize a dye from a page size ribbon that vaporizes and condenses on the paper. This method allows a continuous tone of ink intensities to be produced.
a) Dye sublimation
b) Dye freezing
c) Dye evaporation
d) Dye saturation
Answer: a
Clarification: It employs a printing process that utilizes heat to transport dye onto materials such as a plastic, card, paper, or fabric. The sublimation name was first applied because the dye was there to make the transition in the middle of the solid and gas states without going through a liquid stage.
8. ___________ crystals surrounded by ink vibrate, cautilizing a droplet to form and pass through a fine nozzle, a very small electric heater boil the ink to transfer it to the paper.
a) CuSO4
b) SiO2
c) Methamphetamine
d) Piezoelectric
Answer: d
Clarification: It’s the ability of certain materials to generate an electric charge in response to applied mechanical stress. Four print heads (or portions of) are utilized for colour printing.
9. ___________ are generally reserved for instrumentation. For example, E.K.G. machines and other “chart recorders,” many FAX receivers, some computer printers, and other devices utilize this method.
a) Ink jet printer
b) Photocopy
c) Thermal printers
d) Ribbons
Answer: c
Clarification: It’s a digital printing process which produces a printed image by selectively heating coated thermochromic paper, when the paper is sent over the thermal print head. The coating turns black in the areas where it’s heated, producing an image.
10. Printing occurs by a ____________ that heats appropriately as it scans. This method has the advantage that ink will not clog in equipment that gets intermittent utilize so that the reliability is greatly improved.
a) Print head
b) Thermal head
c) Pressure head
d) Density head
Answer: a
Clarification: There are 3 areas of the printhead that need to be cleaned: plastic ramps on both the sides of the ink nozzles, the edge in the middle of the nozzles, and the electrical contacts.
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