Exam Paper 2022

Question 1

What are gardening tools often made from?

Answer 1

Aluminium
Hardwood
Thermosetting plastic
Metal alloys

Question 2

Is aluminium a non - ferrous metal?

Answer 2

Yes

Question 3

Are hardwood trees usually evergreen?

Answer 3

No

Question 4

Thermosetting plastic will soften when heated?

Answer 4

No

Question 5

An alloy is made from more than one metal?

Answer 5

Yes

Question 6

What are two automated systems that could be used in a greenhouse?

Answer 6

Automated watering or feeding
Temperature control, opening and closing vents
Humid it and light levels

Question 7

Suitable plastics that you could vacuum form things?

Answer 7

HIPS
Foamex
PC

Question 8

Reasons to use a worm and wheel mechanism?

Answer 8

Compact size
Speed reduction
No slippage

Question 9

Two reasons why monorail transport systems are elevated?

Answer 9

Avoid traffic
Faster

Easier to build / doesn’t interfere with roads

Question 10

Two ways that public transport systems, like monorails help reduce environmental pollution?

Answer 10

Less energy cost/ less fumes produced that road based traffic

Can carry large numbers of passengers quickly - minimum delay

Question 11

Advantages of a 3D printer?

Answer 11

Ability to make unique complicated and intricate parts
Parts can be produced at a lower cost as all the same material
Less waste
Rapid prototyping

Question 12

Disadvantages of 3D printers?

Answer 12

Slow-takes a long time to print
Can be expensive
Size of parts are limited

Question 13

Define : Additive Manufacturing

Answer 13

Process of creating three-dimensional objects by adding material layer by layer from a digital 3D model.

Question 14

Three examples of primary forces

Answer 14

Bending
Compression
Tension

Question 15

Reasons why a train rail would have holes in it?

Answer 15

Reduce weight
Reduce material and cost

Question 16

Advantage of using a belt drive rather than a chain and sprocket?

Answer 16

Lower cost
Easy to replace
No lubrication
Less noise
Less weight

Question 17

What does LED stand for?

Answer 17

Light
Emitting
Diode

Question 18

What is the name given to the longer leg of an LED?

Answer 18

Anode
Positive leg

Question 19

What was the first major technological development that made it possible for inventors to power machines without horses?

Answer 19

Steam engine

Question 20

Who was the person that popularised mass production?

Answer 20

Henry Ford

Question 21

Benefit of mass production for the consumer?

Answer 21

Lower cost products
Wider range of products

Question 22

Benefit of mass production for the producer

Answer 22

More units produced
Increased productivity
Higher profits / lower unit cost

Question 23

Benefits of the use of industrial robots in the production of cars

Answer 23

Faster car production
Consistently high quality
Reduced accidents
24 hour working

Question 24

What are PVs?

Answer 24

Photovoltaic cells

Question 25

Energy conversion associated with photovoltaic cells?

Answer 25

Light energy to electricity

Question 26

Give a reason why a photovoltaic panel is designed to tilt and turn automatically?

Answer 26

To follow the Sun throughout the day Points directly at the Sun for more efficient solar conversion

Question 27

Define polarised ( in a dc motor )

Answer 27

Depending on how the motor is connected to a power source, the motor will turn clockwise of anti-clockwise Separation of elements of a system into two groups of opposing natures

Question 28

Give an example of a temperature sensing component?

Answer 28

Thermistor

Question 29

Two other devices that use temperature sensors as part of their control systems?

Answer 29

Fridge Oven Fire alarm, Central heating system Greenhouse

Question 30

What type of motion is produced by a linkage mechanism?

Answer 30

Oscillating

Question 31

Non - ferrous

Answer 31

Metals that don’t contain iron