Mechanical Handling of Materials B.E Question Paper : jaduniv.edu.in

Name of the University : Jadavpur University
Department : Printing Engineering
Degree : B.E
Subject Code/Name : Mechanical Handling of Materials
Sem : I
Website : jaduniv.edu.in
Document Type : Model Question Paper

Download Model/Sample Question Paper : https://www.pdfquestion.in/uploads/dspace.jdvu.ac.in/5426-MECHANICAL%20HANDLING%20%20OF%20MATERIALS_Seme2_2005.pdf

Mechanical Handling of Materials Question :

B. Printing Engg Part-I Examination, 2005 :
( 2nd Semester )
Time : Three hours

Related : Jadavpur University Process Photography B.E Question Paper : www.pdfquestion.in/5425.html

Full Marks : 100
Answer Q. No, 1 and any four from rest. :
1. (a) How improper storing and handling of blankets and rollers in a offset press affect the print quality ?
(b) How can you use a rigid arm elevator in a web offset press ?

(c) Why drive unit is preferably located at the head end of a belt conveyor ?
(d) Why centrifugal discharge type elevator is sensitive to overloading and under loading ? 4×5

2. (a) Describe with a neat sketch the device suitable for handling orates of glass bottles to serve different floors of a multistoried building.
(b) Describe with a neat sketch the device suitable for homogeneous mixing of two or more materials while conveying. 10+10

3. (a) What are the essential parameters to be considered in designing a gravity roller runway ? Show these with a neat sketch,
(b) What is angle of repose for bulk materials ? How can you determine this angle for sand ? How does it affect in determining the width of a flat belt conveyor ? 10+10

4. State the differences between the suction system and the pressure system of handling bulk materials by pneumatic means. Suggest a suitable device for unloading grains from a railway wagon and store it on a storage bin and sketch the arrangement with the necessary accessories. 20

5. (a) Find out the width of the belt of a horizotal 3-roller iroughed belt conveyor designed to convey 150 tons / hr of 30 mm sized fine coal at a speed of 2.5 m / sec. The side idlers are set at angles of 30°. Bulk weight of granular fine coal is 0.8 ton / m3 and its static angle of repose is 45°.

(b) On what factors belt width and capacity of a belt conveyor carrying packed loads are dependent and how? 12+8
6. (a) Explain the device with a neat sketch suitable for handling rotogravure cylinders weighing nearly a ton.

(b) How do you handle and store plates properly in a offset printing press ?
(c) Name some of the handling equipments used commonly in printing and publishing houses. 10+6+4

7. Write short notes on ( any four ) 4×5
(a) Characteristic hump size
(b) Super capacity bucket elevator
(c) Cut-flight screw conveyor
(d) Angle of repose
(e) Roller conveyor for small packaged items.

Syllabus :
Printing Techniques :
An introduction to different printing processes such as letter press, lithography/offset, gravure, intaglio, flexography, and screen printing. A short history of the printing process.

Letterpress : an introduction to typographic design, type details, measurements, point size, lead, page make-up, proof reading and corrections, general awareness of the factors which decide the choice of type face, etc.

Methods for graphic block reproduction, line and halftone production. Introduction to letter press printing machines, introduction to different type setting methods.

Lithography : Non impact Printing: Introduction to digital printing, thermal printing, laser printing, ink jet printing etc.

Screen Process Printing : Screen printing principle, Screen mesh, Screen printing frames, Screen pretreatment, Degreasing, Different method of stencil preparation, Multi-color reproduction, Screen printing problems and solutions, Screen ink and their properties, Machinery configuration. Latest developments and applications in screen process printing.

References :
** Stephens John, Screen Process Printing, Blueprint
** Samuel Hoff, Screen Printing, A Contemporary Approach, Delmar Publishers
** Appleton William, Screen Printing, A literature review, Pira International

** Adams J. Michael, Faux D. David, Rieber J. Lloyd, Printing Technology, Delmar Publishers
** Eldred Nelson R., Chemistry for the Graphic Arts, GATF
** Lithographers Manual, GATF.

** Photo-Engraving in Relief; Smith, Turner and Hallam; Pitman Publishing Corporation, London.
** Printing Technology; Adams, Faux and Rieber.