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B19MEO701 -3D PRINTING AND TOOLING

Total questions: 50

Worksheet time: 26mins

Name
Class
Date
1.

From the following, the alternative name for RP is ________

a)

Additive Manufacturing

b)

Layer Manufacturing

c)

Direct CAD Manufacturing

d)

All of the above

2.

Which of the following is not a common name for RP?

a)

Additive Manufacturing

b)

Layer Manufacturing

c)

Direct CAD Manufacturing

d)

Subtractive Manufacturing

3.

Which technology is commonly associated with RP?

a)

3D Printing

b)

2D Printing

c)

Virtual Reality

d)

Augmented Reality

4.

Which of the following is not a liquid-based RP system?

a)

Stereolithography Apparatus (SLA)

b)

Laminated Object Manufacturing (LOM)

c)

Solid Ground Curing (SGC)

d)

Solid Object Ultraviolet-Laser Printer (SOUP)

5.

Which of the following is a common name for RP?

a)

Additive Manufacturing

b)

Layer Manufacturing

c)

Direct CAD Manufacturing

d)

All of the above

6.

What is the primary technology associated with RP?

a)

3D Printing

b)

2D Printing

c)

Virtual Reality

d)

Augmented Reality

7.

Which of the following is a solid-based RP system?

a)

Stereolithography Apparatus (SLA)

b)

Laminated Object Manufacturing (LOM)

c)

Solid Ground Curing (SGC)

d)

Solid Object Ultraviolet-Laser Printer (SOUP)

8.

Which of the following is not a subtractive process?

a)

Milling

b)

Stereo-lithography

c)

Sawing

d)

EDM

9.

Choose the correct sequence to generate a prototype.

a)

3D CAD data - CAD solid model - STL file - RP prototype

b)

CAD solid model - 3D CAD data - RP prototype - STL file

c)

STL file - 3D CAD data - CAD solid model - RP prototype

d)

3D CAD data - STL file - CAD solid model - RP prototype

10.

Full form of STL is _____.

a)

Straight-lithography

b)

Streto-lithography

c)

Stereo-lithography

d)

Straight-lipsography

11.

What is the full name of SLS?

a)

Selective Laser Simulator

b)

Sintering Laser Simulator

c)

Selective Laser Sintering

d)

Stereolithography Laser Sintering

12.

Process of converting an STL file model into layers is called ________ in RP.

a)

Chopping

b)

Slicing

c)

Cutting

d)

Trimming

13.

Which of the following aspects is mainly concerned with molding the final shape around the basic skeleton?

a)

Aesthetic aspect

b)

Functional aspect

c)

Operational aspect

d)

None of these

14.

The STL files translate the part geometry from a CAD system to ________.

a)

CNC machine

b)

CMM machine

c)

RP machine

d)

CAPP machine

15.

In the ___________ process, one starts with a single block of solid material larger than the final size of the desired object, and material is removed until the desired shape is reached.

a)

Subtractive process

b)

Additive process

c)

Formative process

d)

All of the above

16.

Which of the following addresses the need to design a product for safety?

a)

Soft-Hard Review

b)

Effect Analysis

c)

Experimental Design

d)

None of these

17.

Full form of FDM is _______.

a)

Fixed Development Modelling

b)

Fusion Development Modelling

c)

Fused Deposition Modelling

d)

Focused Deposition Modelling

18.

The process of obtaining a geometric CAD model from 3D points acquired by scanning or digitizing existing parts or products is best known as:

a)

Forward Engineering

b)

Backward Engineering

c)

Reverse Engineering

d)

Product Engineering

19.

In the entire reverse engineering process for product design, which one is the first step?

a)

CAD model updating

b)

CAD modeling

c)

Data pre-processing

d)

Data capturing

20.

Which of the following RP systems is not developed by 3D Systems?

a)

Selective Laser Sintering (SLS)

b)

Multi-Jet Modeling System (MJM)

c)

Paper Lamination Technology (PLT)

d)

Stereolithography Apparatus (SLA)

21.

Which of the following is used as the base material in the Stereolithography (SLA) process?

a)

Thermoplastics, Metal powders

b)

Thermoplastics, Eutectic metals.

c)

Photopolymer

d)

Titanium alloys

22.

Which of the following advantages is not possessed by the rapid prototyping process over the traditional prototyping process?

a)

It consumes less time

b)

Gives better quality

c)

Reduces product launch time

d)

It's cheaper

23.

STL file format is represented by the interaction of ______.

a)

lines and hexagons

b)

lines and rectangles

c)

lines and triangles

d)

lines and circles

24.

Which among the following processes is the most important part of product development?

a)

Packaging

b)

Purchasing

c)

Engineering Design Process

d)

Marketing

25.

Which material can be efficiently used as a support material?

a)

ABS

b)

PLA

c)

Nylon

d)

INF

26.

Which file format cannot be converted into STL file format?

a)

.prt

b)

.dwg

c)

.stp

d)

.sld

27.

STL files contain ______.

a)

mass properties of the model

b)

geometrical data

c)

drawing data

d)

all of the above

28.

To meet the customer’s demand in today’s market, we need:

a)

Rapid Manufacturing

b)

Conventional Manufacturing

c)

Unconditional Manufacturing

d)

None of these

29.

Which of the following is least important in design during rapid prototyping?

a)

Machine size

b)

Tolerance

c)

Material

d)

CAD software

30.

Which of the following is not an example of additive manufacturing?

a)

Fused-deposition modeling

b)

Electron beam machining

c)

SLS

d)

Injection molding

31.

Post-processing in Fused Deposition Modeling in comparison to Stereolithography

Apparatus is:

a)

Lower

b)

Higher

c)

Equivalent

d)

Can’t say

32.

The cost required to build one component, including all associated costs, is known as:

a)

Product Cost

b)

Part Cost

c)

Production Cost

d)

Fixed Cost

33.

Which of the following is not a solid-based RP system?

a)

Laminated Object Manufacturing (LOM)

b)

Paper Lamination Technology (PLT)

c)

Electron Beam Melting (EBM)

d)

Fused Deposition Modeling (FDM)

34.

Full form of LENS is

a)

Lamination Electron Net Sintering

b)

Laminated Engineered Net Shaping

c)

Laser Engineered Net Shaping

d)

Laser Engineered Net Sintering

35.

Which of the following is not a Powder-Based RP system?

a)

Selective Laser Sintering (SLS)

b)

Solid Object Ultraviolet-Laser Printer (SOUP)

c)

Electron Beam Melting (EBM)

d)

Direct Metal Deposition (DMD)

36.

Which one of the following rapid prototyping processes uses a photosensitive liquid polymer as the starting material?

a)

Droplet Deposition Manufacturing

b)

Used-Deposition Modeling

c)

Laminated-Object Manufacturing

d)

Stereolithography

37.

Which of the following RP technologies use molten material as the starting material?

a)

Three-Dimensional Printing

b)

Fused-Deposition Modeling

c)

Stereolithography

d)

Selective Laser Sintering

38.

Among the following, which one is the last step in data processing for rapid prototyping?

a)

Model slicing

b)

Part orientation

c)

Tool path generation

d)

Support generation

39.

Rapid prototyping and additive manufacturing are two terms that refer to fabrication technologies that add layers of material to an existing part or substrate.

a)

True

b)

False

40.

Which of the following processes is suitable for making injection molding tools?

a)

SL

b)

SLS

c)

SGC

d)

FDM

41.

In Fused Deposition Modelling, the raw material is used in the form of _____.

a)

wax

b)

wire

c)

powder

d)

all of the above

42.

3D printing is very similar to SLS, except that a binder liquid is sprayed in selected regions instead of a laser.

a)

True

b)

False

43.

In an extrusion-based 3D printing RP system, the raw material form used is ________.

a)

wax

b)

powder

c)

rubber

d)

wire

44.

Cut and then paste the approach of LOM suitable for Laminated Tooling.

a)

True

b)

False

45.

Which of the following can cause accuracy problems in SLA processes?

a)

CAD/CAM induced error

b)

Laser beam width induced error

c)

Material shrinkage error

d)

All of the mentioned

46.

In STL files, a large number of facets can cause

a)

errors reduction

b)

giant data file

c)

longer part build time

d)

all of the mentioned

47.

Machining is never used for rapid prototyping because it takes too long.

a)

True

b)

False

48.

Rapid prototyping technologies are never used to make production parts.

a)

True

b)

False

49.

Which of the following is a step in the Rapid Prototyping process?

a)

Create a CAD model of the design

b)

Convert the CAD model to STL format

c)

Slice the STL file into thin cross-sectional layers

d)

All of the above

50.

The principle of rapid prototyping is based on an object or model being sliced by parallel planes.

a)

True

b)

False