Trinity High Technical Department

TRINITY HIGH TECHNICAL DEPARTMENT Trinity High School

Technical Department

S2 Homework Booklet

Name ______Class ______

Homework Issue date Return date Parents Sig. Mark

Clock 1 9

Clock 2 8

Clock 3 8

Clock 4 12

Trowel 1 7

Trowel 2 10

Trowel 3 13

Trowel 4 12

 Always get your homework signed by your parent/guardian

Useful websites: www.technologystudent.com http://trinitytechnical.wikispaces.com TRINITY HIGH TECHNICAL DEPARTMENT Clock – Homework 3

1. The tool shown below was used to hold the clock when drilling holes. What is the name of this tool?

Engineer’s vice

Machine vice

Hand vice (1)

2. A pupil’s design for a novelty clock made from acrylic is shown below. Complete the sequence of operations for the edges of the acrylic.

Stage 1 Cross file to acrylic until it is round.

Stage 2 ______

Stage 3 ______

Stage 4 ______(3)

3. The finished clock is to be evaluated. Add two further questions to the list below which could be used to evaluate the design.

Does it look good?

Can the time be read easily?

______

______(2)

4. The saw used to cut the acrylic is shown below. Circle the name of this saw.

Panel saw

Junior hacksaw

Coping saw (1) 5. From the list below, circle the two most important reasons for choosing acrylic for a CD rack Available in a range of colours Cracks easily when being drilled Expensive to buy Easy to bend when heated Available in large sheets (2) Total / 9 TRINITY HIGH TECHNICAL DEPARTMENT Clock – Homework 2

1. The machine shown below is used to heat acrylic sheet before bending. Circle the correct name of this machine.

Strip heater

Soldering iron

Spot welder

2. Name an item of safety equipment, apart from goggles, which should be worn when handling hot acrylic.

______

3. In the forming process, the temperature of the acrylic is important. Describe what might happen if the temperature is

(i) not hot enough ______

(ii) too hot ______

4. Acrylic is a thermoplastic. Describe the main difference between thermoplastic and thermosetting plastic.

______

______(2)

5. The helmet below is made from thermoplastic. State two properties of thermoplastic that make it a good choice for making it with a thermoplastic.

1. ______

2. ______

Total / 8 TRINITY HIGH TECHNICAL DEPARTMENT Clock – Homework 1

1. You are a toy designer who has been asked to produce a new design for an educational toy for very young children. Suggest three things that are likely to be in the specification given to you.

(i) ______

(ii) ______

(iii) ______(3)

2. State four Ergonomic considerations the designer must have considered when designing this bicycle.

______

______(4)

3. A pupil has designed a toothbrush holder. Part B is made from acrylic sheet. Five holes have to be drilled as shown below.

Describe one method that would prevent the acrylic from cracking when it is drilled.

______(1)

Total / 8 TRINITY HIGH TECHNICAL DEPARTMENT CLOCK – Homework Task 4 – Researching Materials

For each of the four materials below Identify what category of wood or plastic they are. Point out any special features e.g. brittle, strong. Find out where these materials are mostly used. Use full sentences (Total / 12)

MDF This is an example Category: MDF is a manufactured board. Special Features: MDF is usually bought in large sheets and does not have any grain. It has a good quality finish that is easily machined. Uses: MDF is used for shelving, table tops etc. It is not suitable for outdoor use.

Acrylic Category

Special Features Uses

Plywood Category

Special Features

Laminate Category

Special Features

Hardboard Category

Special Features

Uses TRINITY HIGH TECHNICAL DEPARTMENT Trowel – Homework 1

1. Ergonomics is an important part of telephone design.

a) You have been asked to help design a mobile phone. What human factors should be considered when …..

(i) deciding on the size of the “dialling” buttons?

______(1) (ii) the length of the mobile phone?

______(1) (iii) the breadth of the mobile phone?

______(1)

b) Suggest one way your design for the mobile phone could be checked for comfort and ease of use before being mass-produced.

______

______(1)

2. The handle of your trowel is to be made using Mild Steel Flat Bar. The blade is to be made using Mild Steel Sheet.

(a) State an ergonomic consideration that should be taken into account during the designing of the handle.

______(1)

(b) State one advantage and one disadvantage of using Mild Steel Sheet to make the Trowel.

Advantage ______

Disadvantage ______(2)

Total / 7

Trowel – Homework 2 TRINITY HIGH TECHNICAL DEPARTMENT 1. Which one of the following metals will rust if left outside for a long time?

Copper Aluminium Mild steel (1) 2. The tool shown below is used when marking out curves on the trowel. What is the name of this tool?

Outside callipers

Odd-leg callipers

Spring dividers

3. The tool shown below was used for marking out the trowel. What is the name of the tool?

Odd leg callipers

Scriber

Outside callipers

4. A ball pein hammer is used in riveting. Identify the ball pein hammer below. (1)

5. The tool shown here is very useful when marking out metal. What is the tool called?

______(1)

What is it used for?

______(1)

6. What is a template?

______(1)

7. The brief for a clock is given below. BRIEF Design and manufacture an attractive trowel for digging up weeds. It must be capable of being mass produced at an affordable cost and comfortable to hold. State the part of the brief that refers to:

Aesthetics ______

Function ______

Ergonomics ______(3)

Total / 10 Trowel – Homework 3 TRINITY HIGH TECHNICAL DEPARTMENT 1. Methods for joining metal can be split into two categories, Permanent and Non- permanent. Name a permanent and a non-permanent joining method and describe where they would be used. Permanent ______

______

Non-permanent ______

______(4)

2. Snap head rivets were used to join the handle and the trowel. Identify a snap head rivet below.

3. The mild steel trowel turned ______in colour after it had been heated and dipped in oil. (1) 4. The handle of your trowel was dip coated. State TWO reasons why dip coating is a suitable finish for the handle

______

______(2)

5. A fluidiser is used in dip coating. Sketch a fluidiser in the space provided below and label the main parts.

(2) 6. Describe the main stages of dip coating the handle. The first one has been done for you.

1. Clean handle with emery cloth to remove dirt and grease.

2. ______

3. ______

4. ______(3)

Total /13 TRINITY HIGH TECHNICAL DEPARTMENT Trowel – Homework 4 - Research of Tools For each of the tools below, explain what they are used for. Point out any special features the tool has and mention other tools they used with. Make a sketch of the tools in pencil and label it. Use full sentences (Total / 12)

A Former (This is an example ) Used for : A former is used to shaping sheet metal into curves

Special features: It is made from steel and is a small length of pipe and an engineers vice hold it when the sheet metal is formed.

Raw Hide Mallet Used for :

Special Features

Sketch

File Used for :

Special Features

Sketch

Rivets Used for :

Special Features

Sketch

Ball Pein Hammer Used for :

Special Features:

Sketch