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Reka Bentuk Teknologi Tahun 6

Total questions: 71

Worksheet time: 2hrs 16mins

Name
Class
Date
1.

What is the main function of gears in a mechanical system?

a)

Generate electrical energy

b)

Transfer force and motion

c)

Store energy

d)

Reduce noise

2.

Which component connects two pulleys?

a)

Gear

b)

Belt

c)

Hinge

d)

Resistor

3.

What is an example of a first-class lever?

a)

Wheelbarrow

b)

Scissors

c)

Bottle opener

d)

Wheel

4.

The control panel of a washing machine functions to:

a)

Rotate the drum

b)

Give instructions to the motor and sensors

c)

Generate heat

d)

Store water

5.

Common materials for building mechanical models in school are:

a)

Paper and plastic

b)

Glass

c)

Cast iron

d)

Teak wood

6.

If a large gear turns 5 times, how many times will a small gear turn?

a)

Less

b)

More

c)

Same

d)

Stop

7.

Why do bicycles use chains and gears?

a)

To reduce friction

b)

Transfer force from pedals to wheels

c)

Decorate the bicycle

d)

Store energy

8.

The balance sensor of a washing machine functions to:

a)

Stop the drum if unbalanced

b)

Increase rotation speed

c)

Heat water

d)

Generate noise

9.

What is the advantage of a pulley system compared to gears?

a)

Suitable for long distances

b)

More precise

c)

No friction

d)

Cheaper

10.

Electronic components in a washing machine include:

a)

Motor

b)

Sensors and control panel

c)

Belt

d)

Axle

11.

How do you reduce friction in a pulley system?

a)

Use a smooth belt or lubricant

b)

Add weight to the pulley

c)

Reduce pulley size

d)

Use gears

12.

If a remote control car's motor is not working, what is the first step to fix it?

a)

Replace the battery

b)

Cut the wire

c)

Add gears

d)

Repaint the car

13.

Why are the gears in a wall clock small?

a)

For movement accuracy

b)

To save space

c)

Easy to clean

d)

Less noise

14.

What is the problem if a door hinge is rusty?

a)

The door is hard to open

b)

The door is lighter

c)

No effect

d)

The door opens by itself

15.

How can solar panels be used in remote control cars?

a)

Replace batteries as a power source

b)

Decorate the car

c)

Reduce friction

d)

Store water

16.

What is the function of a motor in an electromechanical system?

a)

Convert electrical energy to kinetic energy

b)

Store energy

c)

Reduce friction

d)

Generate noise

17.

A 3-pin plug consists of the following terminals EXCEPT:

a)

Live (L)

b)

Neutral (N)

c)

Earth (E)

d)

Sensor (S)

18.

Among the following, which is a mechanical component?

a)

Resistor

b)

Belt

c)

LED

d)

Battery

19.

The control panel of a washing machine uses:

a)

Circuit board and microcontroller

b)

Gears and pulleys

c)

Hydraulic motor

d)

Heat shrink tubing

20.

The suitable material for building a remote control car model in school is:

a)

Cardboard and ice cream sticks

b)

Glass and metal

c)

Teak wood

d)

Hard plastic

21.

Why must the belt be tightly fitted on the pulley?

a)

To prevent slipping during power transfer

b)

Generate noise

c)

Save space

d)

Reduce costs

22.

What is the effect if the gear teeth do not mesh properly?

a)

Movement is not smooth or fails

b)

Speed increases

c)

No effect

d)

Noise decreases

23.

How does the balance sensor work?

a)

Stops the drum if unbalanced

b)

Heats water

c)

Rotates the drum faster

d)

Generates light

24.

If the remote control car battery is weak, what happens?

a)

Motor does not work or is slow

b)

Gear breaks

c)

Belt breaks

d)

Control panel is damaged

25.

If the remote control car battery is weak, what happens?

a)

Motor does not function or is slow

b)

Gear is broken

c)

Belt is broken

d)

Control panel is damaged

26.

Why is the microcontroller board important in electromechanical products?

a)

Controls the entire system

b)

Generates power

c)

Replaces the motor

d)

Stores water

27.

How would you improve the design of a remote control car if it fails to move straight?

a)

Adjust the position of the gear or wheels

b)

Replace the battery

c)

Repaint the car

d)

Add a new belt

28.

Why are solar panels less suitable for use in remote control cars compared to batteries?

a)

Inconsistent power without light

b)

Too heavy

c)

Expensive

d)

Difficult to install

29.

What are the risks if electrical wires are exposed without insulation?

a)

Short circuit or electric shock

b)

Motor is faster

c)

Sensor is damaged

d)

No effect

30.

How does the electromechanical system of a washing machine save energy?

a)

Sensor stops operation if unbalanced

b)

Uses more water

c)

Heats the drum

d)

Produces loud noise

31.

If you want to create an automatic door, which electromechanical component is most critical?

a)

Motor and sensor

b)

Gear and belt

c)

Battery and paint

d)

Wood and glue

32.

List two electrical components in a washing machine.

4 lines
33.

Explain the function of one of those components.

4 lines
34.

Name two types of motors used in electromechanical products.

4 lines
35.

Compare the functions of both types of motors.

4 lines
36.

List three mechanical components in a remote control car.

4 lines
37.

Explain how the belt functions in that system.

4 lines
38.

What is the importance of gears in a mechanical system?

4 lines
39.

Give one example of gear application in daily life.

4 lines
40.

List three steps in the process of sketching product ideas.

4 lines
41.

Why must sketches be evaluated before being built?

4 lines
42.

State two materials used to build a remote control car.

4 lines
43.

Explain why cardboard is chosen as the main material.

4 lines
44.

What is the function of the control panel in electromechanical products?

4 lines
45.

How does the control panel communicate with the motor?

4 lines
46.

Name two types of sensors in a washing machine.

4 lines
47.

Explain the role of the drum balance sensor.

4 lines
48.

Give two examples of daily products that use pulley and belt systems.

4 lines
49.

Compare the advantages of pulley systems over gears.

4 lines
50.

What is the use of heat shrink tubing in electrical circuits?

4 lines
51.

Why is it important in wire installation?

4 lines
52.

If the remote control car does not move, state two possible causes.

4 lines
53.

Suggest one way to fix that problem.

4 lines
54.

Why must the gear size selection be appropriate for the product?

4 lines
55.

How does gear size affect the speed of the remote control car?

4 lines
56.

List two safety steps when using a hot glue gun.

4 lines
57.

Why are these steps important?

4 lines
58.

What are the risks if electrical wires are exposed without insulation?

4 lines
59.

State one way to avoid it.

4 lines
60.

Suggest one improvement for the existing remote control car.

4 lines
61.

Explain how that improvement enhances the product's function.

4 lines
62.

List two advantages of electromechanical products over manual products.

4 lines
63.

Give one example of an electromechanical product in your home.

4 lines
64.

What is the main function of the microcontroller board in a remote control car?

4 lines
65.

State one component connected to it.

4 lines
66.

How can solar panels be used in electromechanical products?

4 lines
67.

State one disadvantage of using solar panels.

4 lines
68.

Why are recycled materials suitable for school projects?

4 lines
69.

Name two recycled materials in building a remote control car.

4 lines
70.

List three important pieces of information in product presentation.

4 lines
71.

Why is product functionality demonstration necessary?

4 lines

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