Download GTU BE/B.Tech 2019 Summer 8th Sem New 2181914 Rapid Prototyping Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Summer 8th Sem New 2181914 Rapid Prototyping Previous Question Paper

1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ?VIII(NEW) EXAMINATION ? SUMMER 2019
Subject Code: 2181914 Date: 09/05/2019

Subject Name: Rapid Prototyping

Time: 10:30 AM TO 01:00 PM Total Marks: 70

Instructions:

1. Attempt all questions.

2. Make suitable assumptions wherever necessary.

3. Figures to the right indicate full marks.

*************

Q.1 (a) Discuss the applications of RP systems. 03
(b) What are the important challenges for selection of material in RP
process?
04
(c) Write the difference between rapid prototyping and computer
numerical control.
07
Q.2 (a) Discuss the different scan patterns use in stereolithography (SL). 03
(b) What are the merits and demerits of laminated Object manufacturing? 04
(c) With a neat sketch explain Selective Laser Sintering. 07
OR
(c) Write the applications of powder bed fusion processes. 07
Q.3 (a) What are the advantages and limitations of solid based system
compared with liquid based system?
03
(b) Which Rapid Prototyping processes are best suited for production of
ceramic parts, Why?
04
(c) Describe Fused deposition modeling process with a neat diagram. 07
OR
Q.3 (a) Discuss the technical challenges of 3D printing. 03
(b) Describe 3D printing process. 04
(c) Explain SGC process with neat sketch. 07
Q.4 (a) Explain Rapid tooling. 03
(b) Briefly explain the materials used in SLA. 04
(c) Explain in detail the process chain of Rapid Prototyping. 07
OR
Q.4 (a) What is the difference between rapid tooling and rapid
manufacturing?
03
(b) Explain silicon rubber tooling. 04
(c) Explain procedure of slicing and tool path generation with flowchart. 07
Q.5 (a) Compare STL and SLC file format. 03
(b) Explain rapid tooling process. 04
(c) Explain the concept of support structure and material in RP process
with neat sketch.
07
OR
Q.5 (a) Compare RP and CNC. 03
(b) Differentiate between direct and indirect Rapid tooling. 04
(c) Discuss errors in RP processes. 07
FirstRanker.com - FirstRanker's Choice