directorate for quality and standards in …...directorate for quality and standards in education...

Design & Technology – Form 5 Secondary – 2016 of 16

DIRECTORATE FOR QUALITY AND STANDARDS IN EDUCATION

Department of Curriculum Management

Educational Assessment Unit

Annual Examinations for Secondary Schools 2016

FORM 5 DESIGN & TECHNOLOGY TIME: 1h 45min

Name: _______________________________ Class: _______________ Set: ________

________________________________________________________________________________

--------------------------------------------- Note to student: ---------------------------------------------

You are required to answer all questions.

Useful formulas:

VT = V1 + V2 + V3 ………

V = IR

-------------------------------------------------------------------------------------------------------

FOR TEACHERS' USE ONLY DISTRIBUTION OF MARKS

Enter student’s mark obtained in every area of study in the above table.

D for Design, RM for Resistant Materials, E for Electronics, T for Textiles technology and F for

Food technology

Areas corrected Marks

for

Written

Exam

Marks

for

Design

Folio

TOTAL FINAL

MARK

D RM E F T

Max.

Marks 20 20 20 20 20 100 100 200 %

Student’s

mark

of 16 Design &Technology – Form 5 Secondary – 2016

_____________________________________________________________________

Before answering questions 1 to 5, choose ONE Situation from the above. Each Situation

incorporates two areas. Tick the chosen Situation in the box alongside the titles.

1. Write a Design Brief for your chosen Situation.

________________________________________________________________________________

________________________________________________________________________________

________________________________________________________________________________

2 marks

2. According to your Situation and your Design Brief, state what type of Research you should

carry out to produce a marketable product.

________________________________________________________________________________

________________________________________________________________________________

1 mark

3. Look back at your chosen Situation and Design Brief, and prepare FOUR Design

Specifications.

i. ______________________________ ii. ______________________________

iii. ______________________________ iv. ______________________________

½ mark x 4 = 2 marks

4. In the space below sketch TWO different Ideas: add annotations, dimensions and colour.

SECTION A: DESIGN

Situation A: Food / Resistant Materials Areas

‘Extreme’ is a local company specialising in nutrition for athletes. Through market research the

company noticed that most of the energy drinks that exist on the market are produced from

artificial flavourings, a lot of preservatives and artificial sugars. As a food product designer you

are asked to design a drink to be consumed by athletes during their workout or training

activities. You are asked to produce the final product and to be made available to be displayed

on the shop shelves.

Situation B: Textiles / Electronics Areas

‘Extreme’ is a local company specialising in wearable technology for athletes. The company is

thinking about innovation. ‘Extreme’ employed a group of designers to prepare a set of sports

clothing such as T-shirts, shorts, and Tracksuits for the athlete to wear during his outdoor

activities. The company wishes also to introduce electronic circuits incorporated in these

clothes.


Apply aspects of both areas in your Ideas.

In case of electronic devices, specify the different parts of the system being proposed.

IDEA 1


5 marks x 2 = 10 marks

IDEA 2


5. Explain what scale (method) of production is more suitable to produce the different parts of

your product. Give ONE reason for each different part of your design.

Type of production: ___________________________________________________________

Reason: ____________________________________________________________________

___________________________________________________________________________

1 mark x 3 = 3 marks

6. Choose one product from the ideas that you sketched and mention TWO tests that should be

carried out on the product.

___________________________________________________________________________

___________________________________________________________________________


Carefully study Figure A to answer the questions in this section.

SECTION B: RESISTANT MATERIALS

Figure A: Bicycle parts

drive chain

handlebar

brake

lever

saddle (seat)

crank-arm pedal front wheel

rear

sprocket

chain-ring

rear

wheel

frame

frame

joint


7. Table 1 below gives the properties of some of the materials which are used for the production

of the frame of a bicycle.

MATERIAL PROPERTY

COST Elasticity Strength Weight

Steel good good relatively

high low

Aluminium fair fair low fair

Carbon-fibre high high low very high

Table 1: Material properties

a. Select and list the metals from the materials mentioned in Table 1.

___________________________________________________________________________

1 mark

b. State the main difference between ferrous and non-ferrous metals, using the above metals as

examples for each type.

___________________________________________________________________________

___________________________________________________________________________

2 marks

8. Considering the information provided in Table 1, recommend the most suitable material to be

used for the following situations. Give a reason for your choice of material.

a. the frame of a custom-made racing bicycle for a professional long-distance road

competition

RECOMMENDED

MATERIAL

REASON FOR

CHOICE

b. the frame of a hundred bicycles which shall be used in a rent-a-bike business for tourists

RECOMMENDED

MATERIAL

REASON FOR

CHOICE



9. The frames of STEEL bicycles are usually made up from round hollow sections.

a. Carefully look at the frame joint encircled in Figure A. Assuming that the frame is

made out of STEEL, name a joining method used to complete this particular joint.

______________________________________________________________________

1 mark

b. Give TWO reasons why STEEL frames are usually spray-painted.

______________________________________________________________________

______________________________________________________________________

1 mark × 2 = 2 marks

c. Considering that steel is stronger than aluminium, redesign the cross-section of the

ALUMINIUM tubing in order to overcome this disadvantage. Sketch your answer in the

space provided.

STEEL tubing cross-section ALUMINIUM tubing cross-section

2 marks

10. Figure B shows the mechanical system that drives the bicycle.

25mm

1.5mm

pedal

chain-ring crank-arm

rear sprocket

drive chain

Figure B: Bicycle driving system


a. Complete the diagram below by using sketches to describe how the bicycle driving

system shown in Figure B works. Use ARROWS to help you communicate direction

and transmission of forces.


b. Explain why the rear sprocket is smaller than the chain-ring.

______________________________________________________________________

______________________________________________________________________

2 marks

c. Table 2 shows simplified diagrams of the mechanical system shown in Figure B.

Assuming that the pedalling speed is always constant, add another rear sprocket or

chain-ring in order to show how:

i. the ride can be made easier on an uphill

ii. the ride can be made faster

i. Easier ride on an uphill ii. Faster ride

Table 2


d. Mention another TWO types of mechanisms, other than cranks and chain and sprocket,

found in bicycles.

_______________________________ _______________________________

½ mark × 2 = 1 mark

INPUT PROCESS OUTPUT


“Sportech” is a company that manufactures electronic devices to be used during various sports

activities. Figure C shows the front panel for an electronic device the company is developing. The

device is aimed to help people keep the rhythm during physical activities.

11. a. Figure D shows the system block diagram of the electronic device shown above. By

referring to the information given in Figure C use the following terms to complete the

block diagram.

½ mark × 4 = 2 marks

SECTION C: ELECTRONICS

SPORTECH

Flashing light output

(Green LED) to indicate

time interval

Beeping sound output

(Buzzer) to indicate time

interval

SPST toggle Switch A

controlling light output

SPST toggle Switch B

controlling sound output

SPST power

switch

Red LED

indicating that

the power is

ON

Figure C: Front panel of the device

SPST

power

switch

Green

LED

Amplification

NE555

timer

circuit

6V

supply

Figure D: Block Diagram

Buzzer Red LED SPST toggle switch B SPST toggle switch A


b. The device shown in Figure D is powered by a 6V d.c. supply, which can be produced

by anumber of AA type batteries connected in series. Calculate how many AA type

batteries are needed to obtain a total voltage of 6V.

2 marks

c. Name the equipment which is used to measure the voltage of ONE AA battery.

______________________________________________________________________

1 mark

12. The red LED used to indicate that the power is ON needs 25mA and 2.2V to light up.

a. Find out the required resistance to control the voltage and current for the red LED from

the 6V supply.

2 marks

b. Refer to the idea shown in Figure D in order to complete the following sentences.

i. The power supply and power switch should be connected in ________________.

ii. Switch A and Switch B should be connected in ________________.

iii. A ________________ can be used to amplify the output signal for the buzzer.



13. The company decided to improve the product by introducing the possibility of varying the

timing of the timer circuit.

a. Use the electronic components below to design an electronic circuit to show how to

obtain variable timing. The supply rails have been done for you.

2 marks

b. Mention TWO considerations to take when connecting an electrolytic capacitor in an

electronic circuit.

______________________________________________________________________

______________________________________________________________________


14. The company “Sportech” decided to design and make a new game type product to be used in

sports activities using logic gates ICs.

a. Write what IC stands for.

______________________________________________________________________

1 mark

+6V

0V


b. The company wishes to model and test the circuit before developing it. From the list

below underline the TWO items used to test electronic circuits.


c. Carefully read the following circuit specifications.

By drawing the necessary logic gates, complete the electronic circuit diagram on

Figure E: Electronic Circuit Design in order to achieve the above specifications.

4 marks

15. Name the following tools.


SECTION D: FOOD

Breadboard PCB hot air blower simulation software

+5V

0V

A

B

C

D

LED1 lights ONLY:

when Switch A AND Switch B are both ON

OR

when Switch C AND Switch D are both ON

Figure E: Electronic Circuit Design

LED1


16. State ONE DIFFERENT cooking method used for each of the following foods.

i. Doughnuts are cooked rapidly immersed in a deep container of fat or oil –

_________________________

ii. Sponges are cooked in the oven – _________________________

iii. Meat balls are cooked at a very high temperature with no additional fat –

_________________________

iv. Food is cooked over boiling water without touching the liquid; this way the food does

not lose any of its nutrients – _________________________


17. A food manufacturer wants to improve the nutrition value of his Spaghetti Bolognese.

Suggest healthier ingredients that he can use in his recipe instead of the ones below.


18. Answer the following.

a. Name the THREE micro-organisms.

______________________________________________________________________


corn beef

______________________

______________________

garlic salt

______________________

______________________

canned peas

_________________________

_________________________

salt to taste

_________________________

_________________________


b. What is meant by the term high-risk foods?

______________________________________________________________________

______________________________________________________________________

1 mark

c. Identify the FOUR conditions required for the growth of micro-organisms.

______________________________________________________________________


d. State the best temperature in which micro-organisms start to multiply.

______________________________________________________________________

1 mark

e. State TWO good uses of micro-organism in food production.

______________________________________________________________________

______________________________________________________________________


f. Identify TWO critical control points in the production system which could affect the

quality of the finished product.

______________________________________________________________________

______________________________________________________________________


19. From which natural sources are the following fabrics made:

Cotton from _____________________________________________________________

Linen from _____________________________________________________________

Wool from _____________________________________________________________

Silk from _____________________________________________________________


SECTION E: TEXTILES


20. Name the exact technical name for the following tools or equipment and give ONE reason for

their use.


Tool or Equipment Name Reason


21. The figure below shows a cycling shorts. Suggest:


22. Name the following processes.

a. The process of making yarn into fibre – ______________________

b. Fibres are compressed together to form non-woven fabric – ______________________

c. The warp and weft are interlaced with each other at right angles to form a fabric –

______________________


The type of seams used.

__________________

__________________

_______________________

ONE suitable material for

this cycling shorts.

_______________________

TWO properties that this shorts should have.

_______________________________

_______________________________

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