revised cjb technical drawing sba questions 2021 - 2022

TECHNICAL DRAWING

SCHOOL-BASED ASSESSMENT

BOOKLET-GUIDE 2021

With Mark Schemes Your Technical Drawing School-Based Assessment (SBA) constitutes 40% of

your final CSEC mark. You are obliged to complete all given questions which

will be kept in your portfolio for assessment.

The total possible mark for your SBA is 120

BUILDING/TD

DEPARTMENT

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TECHNICAL DRAWING SCHOOL-BASED ASSESSMENT BOOKLET-GUIDE 2021

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TABLE OF CONTENTS

1 Fundamentals of Technical Drawing...................................................................................................................... 3

1.1 OCCUPATIONAL HEALTH, SAFETY AND THE ENVIRONMENT .......................................... 3

1.1.1 Question 1 ................................................................................................................................................ 3

1.1.2 Question 2 ................................................................................................................................................ 4

1.1.3 Question 3 ................................................................................................................................................ 5

1.2 EQUIPMENT, TOOLS, MATERIALS, LETTERING, LINE WORK, DIMENSIONS AND

SCALES ........................................................................................................................................................................... 6

1.2.1 Question 4 ................................................................................................................................................ 6

1.2.2 Question 5 ................................................................................................................................................ 7

2 GEOMETRICAL CONSTRUCTION ................................................................................................................. 8

2.1 Plane Geometry ................................................................................................................................................ 8

2.1.1 Question 6 ................................................................................................................................................ 8

2.1.2 Question 7 ................................................................................................................................................ 9

2.1.3 Question 8 .............................................................................................................................................. 10

2.2 Solid Geometry ............................................................................................................................................... 11

2.2.1 Question 9 .............................................................................................................................................. 11

2.2.2 Question 10 ............................................................................................................................................ 13

2.2.3 Question 11 ............................................................................................................................................ 15

3 BUILDING DRAWING ............................................................................................................................................ 17

3.1 Building Drawing ............................................................................................................................................ 17

3.1.1 Question 12 ............................................................................................................................................ 17

4 Mechanical Engineering Drawing ......................................................................................................................... 21

4.1 Assembly Drawing (design or redesign) ..................................................................................................... 21

4.1.1 Question 13 ............................................................................................................................................ 21

5 Appendices................................................................................................................................................................ 24

5.1.1 Appendix 1 – PORTFOLIO COVER .............................................................................................. 24

5.1.2 Appendix 2 - COVER SHEET AND SECTION SHEETS FOR SBA ..................................... 26

5.1.3 Appendix 3 – BUSINESS PLAN TEMPLATE .............................................................................. 32

5.1.4 Appendix 4 – SECTION SEPARATORS FOR PORTFOLIO .................................................. 40

5.1.5 Appendix 5 - TECHNICAL DRAWING DIGITAL SBA PORTFOLIO

INSTRUCTIONS ................................................................................................................................................... 45

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1 FUNDAMENTALS OF TECHNICAL DRAWING

Notes: All written papers must be double-spaced using 12pts, Times New Roman text.

1.1 OCCUPATIONAL HEALTH, SAFETY AND THE ENVIRONMENT

1.1.1 Question 1 Specific Objective Section 1-A 2 - develop safety, health and welfare requirements governing workshop/laboratory

Activity a) Using images illustrate three examples that may cause slips, trips, or falls in the office

environment and

b) Explain what can be done to lessen the cause of the examples you have illustrated.

MARK SCHEME

KNOWLEDGE MARKS APPLICATION MARKS PRACTICAL ABILITY

MARKS M T Max M T Max M T Max

Knowledge of: Application of:

Causes of office slips, trips or falls

4

Methods to employ to lessen instances of slips, trips or falls

4

TOTAL MARKS 4 4 0

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1.1.2 Question 2 Specific Objective Section 1-A

7- apply basic First Aid principles and practices

Activity In an emergency it is important that individuals can apply basic first aid principles and

practices.

a) Explain two first aid practices that can be employed if you witness a class -mate injured in the work shop

b) With the aid of pictures discuss what you will use and how you would use it to apply basic first aid to your class-mate if he suffered a deep cut in his hand.

MARK SCHEME


MARKS

M T Max

M T Max

M T Max


First aid practices 4 First aid for an injury

4 -

TOTAL MARKS 4 4 0

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1.1.3 Question 3 Specific Objective Section 1-A 1 - develop safety, health and welfare standards for workshop/laboratory

Part A- -SO 1 to 10. OHSE

Activity A sign is to be mounted on a boarding 2.5 meters away from where workers enter the workplace informing them that they must be dressed in specific PPE before entering the job site.

a) Referring to international standards, state the following information for the sign that should be displayed

I. type of sign II. colours on sign III. size of text to be used IV. colour of text

b) Design the sign if the information to be transmitted is to protect the heads and feet of workers.

MARK SCHEME


MARKS

M T Max

M T Max

M T Max


Standards used to design signs

4 Design of sign showing relevant information (b)

4

TOTAL MARKS 4 4 0

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1.2 EQUIPMENT, TOOLS, MATERIALS, LETTERING, LINE WORK,

DIMENSIONS AND SCALES

1.2.1 Question 4 Specific Objective Section 1-B 1 - discuss the importance of Technical Drawing to industry

Activity Explain what each of the following persons do in their job and conclude with the importance of Technical Drawing to these professions.

a) Manufacturer b) Engineer c) Architect d) Designer

MARK SCHEME


MARKS

M T Max

M T Max

T M Max


Different professions where TD is used

4 TD importance to different professions

4 -

TOTAL MARKS 4 4 0

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1.2.2 Question 5 Specific Objective Specific Objective Section 1-B 2. discuss standards relating to technical drawings

Activity In a drawing office, standards are used to allow different disciplines to produce drawings that use the same line-types, symbols, dimension style etc.

a) What is the name of the standard used to guide industry experts in technical drawings about lines and line-types?

b) explain how any five of those lines are used on technical drawings.

MARK SCHEME


MARKS

M T Max M T Max M T Max


Standard used for technical drawing line-types

4 Use of line-types in technical drawings (5)

4

-

TOTAL MARKS

4 4 0

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2 GEOMETRICAL CONSTRUCTION

2.1 PLANE GEOMETRY General instructions for Plane Geometry

1. Write the question number to each solution on the drawing sheet.

2. Write a short statement on each question

3. Answer one question per drawing sheet.

4. Clearly show all construction lines.

2.1.1 Question 6 Specific Objective Specific Objective Triangles Division of triangles and polygons into a

number of equal and proportional parts Activity A piece of sheet metal has a triangular hole cut into it with the sides in the ratio of 4:5:6 with the perimeter equal to 230mm

a) Draw the shape of the triangular hole b) Divide the triangular hole into 3 equal parts

18 Marks

MARK SCHEME


MARKS

M T Max

M T Max

M T Max

Knowledge of: Application of: Accuracy of:

Triangles Ratio Dividing plane figure into equal parts

1 1 1

geometric construction of triangle given ratio correct division into equal parts Linework/linetype

2 2 2

geometric construction of triangle given ratio division into equal parts Line work/line type Dimensions Neatness

3 2 2 1 1

TOTAL MARKS 3 6

9

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2.1.2 Question 7 Specific Objective Specific Objective Tangency Construct tangents to given specifications

Activity Shown in Figure I is the outline of a latch. Using full-size construct, the layout of the latch clearly showing the procedure for obtaining points of tangency for curves and straight lines.

18 Marks

Figure 1

MARK SCHEME


MARKS

M T Max

M T Max

M T Max


Tangency internal and external Circles and Arcs

2 1

geometric construction of internal and external tangents circles and arcs on centres Linework/linetype

3 2 1

geometric construction of internal and external tangents circles and arcs on centres Line work/line type Neatness

4 3 1 1

TOTAL MARKS 3 6

9

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2.1.3 Question 8 Specific Objective Specific Objective Analytic Geometry Constructing an ellipse using (major and

minor axis), rectangular and concentric circle methods

Activity Shown in Figure 2 is the inside and outside of a plaster molding template. Using full-size draw the templates using an accepted method showing all construction lines.

18 Marks

Figure 2

MARK SCHEME


MARKS

M T Max

M T Max

M T Max


Quadrilaterals Ellipse

1 2

geometric construction of quadrilateral rectangle ellipse (method used) Linework/linetype

2 3 1

geometric construction of quadrilateral rectangle ellipse (method used) Line work/line type Neatness

3 4 1 1

TOTAL MARKS 3 6

9

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2.2 SOLID GEOMETRY General instructions for Solid Geometry

1. Write the question number to each solution on the drawing sheet.

2. Write a short statement on each question

3. Answer one question per drawing sheet.

4. Clearly show all projection lines.

5. Show the symbol for the method of orthographic projection used on all solutions.

2.2.1 Question 9

Specific Objective Specific Objective Producing Pictorial Drawings Producing Isometric and or Oblique

Drawings Activity Figure 3 shows two orthographic views of a machine block in first-angle projection. Draw an Oblique and or Isometric drawing of the block.

18 Marks

Figure 3

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MARK SCHEME


MARKS

M T Max

M T Max

M T Max


Pictorial Views Isometric Projection

2 1

geometric construction of pictorial views Isometric Projection Linework/linetype

3 2 1

geometric construction of pictorial views Isometric Projection Line work/line type Neatness

4 3 1 1

TOTAL MARKS 3 6

9

MARK SCHEME


MARKS

M T Max

M T Max

M T Max


Pictorial Views Oblique Projection

2 1

geometric construction of pictorial views Oblique Projection Linework/linetype

3 2 1

geometric construction of pictorial views Oblique Projection Line work/line type Neatness

4 3 1 1

TOTAL MARKS 3 6

9

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2.2.2 Question 10

Specific Objective Specific Objective Prepare Sectional views of geometrical solids Sectioned surfaces of geometric solids

Activity Shown in Figure 4 is the incompleted plan and elevation of a truncated hexagonal pyramid 120mm high Draw full-size in first angle projection the following:

a) The given Elevation

b) The completed Plan

18 Marks

Figure 4

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MARK SCHEME


MARKS

M T Max

M T Max

M T Max


Orthographic Projection Hexagonal Pyramids Plan

2 1

geometric const. of Orthographic Projection reproducing given views Completed plan Linework/linetype

3 2 1

geometric const. of Orthographic Projection reproducing given views Completed plan Line work/line type Neatness

4 3 1 1

TOTAL MARKS 3 6

9

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2.2.3 Question 11

Specific Objective Specific Objective Preparing Auxiliary Views Planes of projection inclined and sloping

surfaces Activity Shown in Figure 5 is the elevation of a square prism, with a 24 mm square hole cut through the middle Draw full-size the following:

a) The given Elevation

b) The Plan projected from (a) above

c) An auxiliary elevation on the new ground line X1 Y1

18 Marks

Figure 5

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MARK SCHEME


MARKS

M T Max

M T Max

M T Max


Orthographic Projection Preparing Auxiliary Views

1 2

geometric const. of Orthographic Projection reproducing given view Drawing plan from given view Drawing auxiliary elevation Linework/linetype

1 2 2 1

geometric const. of Orthographic Projection reproducing given view Drawing plan from given view Drawing auxiliary elevation Line work/line type Neatness

2 2 3 1 1

TOTAL MARKS 3 6

9

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3 BUILDING DRAWING

3.1 BUILDING DRAWING

3.1.1 Question 12 Specific Objective Specific Objective Prepare Architectural Drawings to Specifications Prepare a Small Business Plan for a viable service or product in architecture

Preparing working drawings Preparing small business plan

Activity Mr. Alvarez wants to build a simple starter home to be used as a rental unit and has given you a sketch showing a single line layout of what he would like to start with and requests that the unit has 2 bedrooms. Based on functional planning and standard room sizes you must do the following.

a) Redesign and develop the plan outline shown above to include what is outlined in the conditions below so that it meets with Mr. Alvarez approval.

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CONDITIONS The design must conform to functional planning standards using standard room sizes

which has been left up to you

Move the kitchen/utility room making that space a second bedroom (utility room is laundry)

Use another appropriate space in the layout for the kitchen and laundry Include a small porch Include a carport The building should be 750mm off the ground with a hip or gable roof which covers

the carport as well.

b) Prepare a Design Document to include the following headings: (i) PROBLEM STATEMENT Having spoken with Mr. Alvarez, who have provided you with the sketch shown above as an example of his idea for a rental starter home. Develop a sentence describing what problems you have observed and how your design will solve these problems. (ii) JUSTIFICATION OF DESIGN Make preliminary sketches of your design solution and keep them in your portfolio. Write a statement explaining why you chose the design you will present as your final solution to Mr. Alvarez (iii) BUSINESS PLAN You are required to assume a company name which reflects a design/build service. Prepare a document which may be used to source funding for your company to design and build the residential starter unit. See (Appendix 7) for business plan template

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c) You are required to submit the following drawings of your final design together with the design documentation and the business plan. Using an appropriate scale to include; (i) A SITE PLAN (ii) A FOUNDATION PLAN (iii) A ROOF PLAN (iv) A GROUND FLOOR PLAN (v) TWO ELEVATIONS (vi) A SECTIONAL FRONT ELEVATION d) Detail drawings to include: (i) A footing detail -Scale 1:10 (ii) A roof apex detail-Scale 1:10 (iii) A roof anchorage detail-Scale 1:10 (iv) A lintel detail-Scale 1:5 (v) A surface drain detail-Scale 1:10 (vi) A stair detail – Scale 1:10 NOTE: All measurements must be in millimeters.

76 Marks

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MARK SCHEME


MARKS

M T Max

M T Max

M T Max


Entrepreneurship Opportunities - Small Business Plan: •Organization of Portfolio •Statement of the problem •Conditions •Design principles

3

Entrepreneurship Opportunities/Small Business Plan: •Organization of Portfolio •Statement of the problem •Conditions •Design principles

6

Design •Originality •Functionality •Suitability •Conformity to building standards Organization of Portfolio •Completeness of portfolio - (All pieces required from Sections I; II & III or IV)

7 8

Working Drawings 2 Working Drawings 4 Working Drawings

Design •Functionality •Suitability of materials •Conforming to building standards

2 2 2

•Floor Plan •Foundation plan/Roof plan/ Details •Elevations •Sectional Elevations

6 4 4 5

Dimensions Dimensioning

4 4

Dimensioning 2 Annotation/Techniques •Layers/Line Type/Quality •Labelling/Lettering /Symbols

Neatness/CAD Presentation

4 2 2

3

TOTAL MARKS 5 18

53

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4 MECHANICAL ENGINEERING DRAWING

4.1 ASSEMBLY DRAWING (DESIGN OR REDESIGN)

4.1.1 Question 13 Specific Objective Specific Objective Prepare Engineering Drawings to Specifications Prepare a Small Business Plan for a viable service or product

Preparing Assembly Orthographic Drawings Preparing small business plan

Activity The details of a control panel are shown below. A M 12 nut not shown is used to lock the lever and the boss in position with the screw.

From the given details shown complete the project as outlined below:

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a) Prepare a Design Document to include the following headings: (i) PROBLEM STATEMENT Outline how the control panel can be assembled by using the numbered parts (ii) CONDITIONS Draw full-size in first angle orthographic projection the following views of the fully assembled control panel

- Front elevation with the face of the panel seen in 1 - Plan and End elevation projected from front (Sectional end elevation) - Note that the M12 hexagonal nut used to lock the screw is to be shown in both front

and end elevations - Show FIVE main dimensions tto include a length, width diameter and radius - Show the title CONTRL PANEL, the scale used and show projection method symbol

used (iii) JUSTIFICATION OF DESIGN Make preliminary sketches of the assembled control panel and keep them in your portfolio. Write a statement explaining the control panel assembly (iv) BUSINESS PLAN Prepare a document which may be used to source funding to produce the device. See (Appendix 7) for business plan template

b) You are required to submit the following drawings together with the design documentation and the business plan.

Working drawings in orthographic projection of each part of the control panel as shown (reproduce each part of the control panel including the M12 nut). At least three orthographic views of the assembled device with a parts list on the drawing sheet to include. (i) A FRONT ELEVATION (ii) A PLAN (iii) A SECTIONAL END ELEVATION NOTE: All measurements must be in millimeters.

76 Marks

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MARK SCHEME


MARKS

M T Max

M T Max

M T Max


Entrepreneurship Opportunities - Small Business Plan: •Organization of Portfolio •Statement of the problem •Conditions •Design principles

3

Entrepreneurship Opportunities/Small Business Plan: •Organization of Portfolio •Statement of the problem •Conditions •Design principles

6

Design •Originality •Functionality •Suitability •Conformity to BS International standards/ISO 9000 Organization of Portfolio •Completeness of portfolio - (All pieces required from Sections I; II & III or IV)

7 8

Working Drawings 2 Working Drawings 4 Working Drawings

•Parts sheet •Pictorial •Sectional view of the assembly •Elevation/Plan of the assembly •Parts list

•Parts sheet •Pictorial •Sectional view of the assembly •Elevation/Plan of the assembly •Parts list

5 3 6 5 2

Design •Function •Safety •Suitability of materials

2 2 2

Dimensions Dimensioning

4 4

Dimensioning 2 Layers/Line types •Outline •Centre Line •Hidden Line •Section Line Annotation/Text/Print •Name of Project •Projection symbols Neatness/CAD Presentation

4 2 2

3

TOTAL MARKS 5 18

53

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5 APPENDICES

5.1.1 Appendix 1 – PORTFOLIO COVER

Arima North Secondary School

Caribbean Examination Council

Caribbean Secondary School Education Certificate - CSEC

Technical Drawing

Teacher: __________________________

Candidate Name: __________________________

Candidate Number: __________________________

Date: June _____________________

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TABLE OF CONTENTS

Section I – Fundamentals of Technical Drawing

1A: OCCUPATIONAL HEALTH, SAFETY AND THE ENVIRONMENT

1B: EQUIPMENT, TOOLS, MATERIALS, LETTERING, LINE WORK, DIMENSIONS AND SCALES

Section 2 – Geometrical Construction

3 PLANE GEOMETRY FIGURES

3 SOLID GEOMETRY FIGURES

Section 3 – Building Drawing – Project

OR

Section 4 – Mechanical Drawing - Project

School Based Assessment SBA

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5.1.2 Appendix 2 - COVER SHEET AND SECTION SHEETS FOR SBA

Arima North Secondary School

Caribbean Examination Council

Caribbean Secondary School Education Certificate - CSEC

Technical Drawing

Teacher: ______________________________________________________

Student Name: _________________________________________________

Student Number: _______________________________________________

Centre Number: _______________________________________________

Date: _________________________________________________________

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TABLE OF CONTENTS

Section I – Fundamentals of Technical Drawing


Section 2 – Geometrical Construction

1 PLANE GEOMETRY SOLUTION 1 SOLID GEOMETRY SOLUTION

Section 3 – Building Drawing – Project

Simple Business Plan

OR

Section 4 – Mechanical Drawing – Project

Simple Business Plan

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Section 1: Fundamentals of Technical Drawing


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Section 2: Geometrical Construction 1 PLANE GEOMETRY FIGURE

1 SOLID GEOMETRY FIGURE

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Section 3: Building Drawing – Project

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Section 4: Mechanical Drawing – Project

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5.1.3 Appendix 3 – BUSINESS PLAN TEMPLATE

COVER PAGE

BUSINESS PLAN

SUBJECT: TECHNICAL DRAWING

TEACHER: ___________________________________

STUDENT NAME: ___________________________________

STUDENT NO. : ___________________________________

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Company Name

Company Name

Address

Contact Numbers

Email

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Table of Contents

Executive Summary 4

Introduction 5

Business Environment 5

Marketing Plan 6

Operations Plan 6

Financial 7

Appendices 8

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A. Executive Summary

1. Brief description of product:

___________________________________________________________________________

___________________________________________________________________________

___________________________________________________________________________

___________________________________________________________________________

___________________________________________________________________________

2. Identify Target Market:

___________________________________________________________________________

___________________________________________________________________________

___________________________________________________________________________

3. Identify key personnel and responsibilities in the business

4. First year projections (taken from financial plan)

Projected worth of business:_____________________________

Anticipated expenses: __________________________________

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Expected Profit per year:________________________________

B. Introduction

1. Name of Business: __________________________Contact Number: ____________

Name of Applicant: ___________________________________________________

2. Type of Operation:

Manufacturing Service

Construction Other (Specify)

3. Mailing Address:

___________________________________________________________________________

___________________________________________________________________________

___________________________________________________________________________

E-mail: ____________________________________________________________________

4. Proposed location of business:

___________________________________________________________________________

___________________________________________________________________________

___________________________________________________________________________

5. Legal Form of Business:

Sole Proprietorship

Partnership

C. Business Environment

1. Mission:

___________________________________________________________________________

___________________________________________________________________________

___________________________________________________________________________

___________________________________________________________________________

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2. Vision:

___________________________________________________________________________

___________________________________________________________________________

___________________________________________________________________________

3. Goals and Objectives:

- ________________________________________________________________________

________________________________________________________________________

________________________________________________________________________

________________________________________________________________________

D. Marketing Plan

1. Target customers:

______________________________________________________________________________

______________________________________________________________________________

______________________________________________________________________________

2. Promotions strategy:

______________________________________________________________________________

______________________________________________________________________________

E. Operations Plan

1. Organizational chart (insert a chart dependent on your form of business)

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2. Hours/days of operation:

______________________________________________________________________________

______________________________________________________________________________

______________________________________________________________________________

3. Major processes involved (list 3):

______________________________________________________________________________

______________________________________________________________________________

______________________________________________________________________________

______________________________________________________________________________

4. Quality control (list 2):

______________________________________________________________________________

______________________________________________________________________________

______________________________________________________________________________

______________________________________________________________________________

______________________________________________________________________________

F. Financial

1. Required for a loan: Name: Phone Number:

(a) Banker:

Loan _________________________

__________________ _________________

3. Projected worth of business:(Profit – Expenses) ____________________________________

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Appendix I (business card)

Image of Business Card

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5.1.4 Appendix 4 – SECTION SEPARATORS FOR PORTFOLIO

Section 1

Fundamentals of Technical Drawing

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Section 2-A

Plane Geometry

3 Plane Geometry Drawings

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Section 2-B

Solid Geometry

3 Solid Geometry Drawings

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Section 3

Building Drawing

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Section 4

Mechanical Engineering Drawing

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5.1.5 Appendix 5 - TECHNICAL DRAWING DIGITAL SBA PORTFOLIO INSTRUCTIONS

Create a folder called:

“LastName FirstName TD Portfolio of Evidence Year-ANSS”

Place six (6) folders inside this portfolio as follows:

• “1-Fundamentals of Technical Drawing” (this folder must contain two folders)

o 1.1-Occupational Health, Safety and the Environment

Solution 1

Solution 2

Solution 3

o 1.2-Equipment, Tools, Materials, Lettering, Line Work, Dimensions and

Scales

Solution 4

Solution 5

• “2-Plane Geometry”

o Solution 6

o Solution 7

o Solution 8

• “3-Solid Geometry”

o Solution 9

o Solution 10

o Solution 11

• “4-Building Drawing”

o Solution 12

o A Business Plan

• “5-Mechanical Engineering Drawing”

o Solution 13

o A Business Plan

• “6-Selected Pieces for the Final SBA Mark”

o The highest marked solution from Section 1-Fundamental of Technical Drawing

o The highest marked solution from Section 2A-Plane Geometry

o The highest marked solution from Section 2B-Solid Geometry

o The marked solution from 3-Building Drawing/4-Mechanical Engineering Drawing

together with the Business Plan

revised cjb technical drawing sba questions 2021 - 2022

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