Core Technical Principals

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Practice questions - taken from textbook

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A method of funding a project by raising money from large numbers of people is called?

1 point

Crowd sourcing

Enterprise

Fair Trade

Virtual retailing

Clear selection

A battery operated motorised toy will need to work at a minimum of 5 volts. Which one of the following are suitable for powering the toy for as long a time as possible, before it needs to be replaced or recharged?

1 point

4x AA Alkaline

4x AA Zinc Oxide

2x Silver Oxide

4x NiMH rechargable

Clear selection

Which of the following is a textile?

1 point

Teflon

Kevlar

MDF

Shape Memory Alloy

Clear selection

You are designing a T shirt which should change colour when the wearer becomes hot. Which smart material would you use to make this happen?

1 point

Photochromic pigments

Quantum Tunnelling composite

Shape Memory Alloys

Thermochromic pigments

Clear selection

A designer has created a security system for use in a home. The system is intended to alert the home owner to an intruder. What is the output in this system?

1 point

Flashing light

Light sensor

Motion sensor

Rocker switch

Clear selection

What is the correct order?

1 point

Fabric - Fibre - Yarn?

Fibre - Yarn - Fabric

Fabric - Yarn - Fibre

Yarn - Fibre - Fabric

Clear selection

What is the selvedge of a fabric?

1 point

The bias grain

The finished edge

The raw edge

The straight grain

Clear selection

Which of the following is a thermosetting polymer?

1 point

Acrylic (PMMA)

Low-density Polythene (LDPE)

Melamine Formaldehyde

Polypropylene

Clear selection

Which of the following metals will corrode in the form of rust?

1 point

Aluminium

Copper

Low Carbon Steel

Stainless Steel

Clear selection

Hardness is...

1 point

The ability to be long lasting

the ability resist a bending force

the ability to resist abrasion

the ability resist a dynamic impact

Clear selection

The diagram shows a simple gear train. What is the velocity ratio of the gear train? The left gear is the driven gear with 45T, the right is the driver with 15T.

1 point

2:1

3:1

1:4

1:3

Clear selection

Car windscreen wipers follow which type of movement?

1 point

Linear

Oscillating

Reciprocating

Rotary

Clear selection

If a cam follower rises for 60° of the cam rotation, and does not move for the remaining rotation of the cam, what will the dwell angle be?

1 point

60°

120°

180°

240°

Clear selection

Which of the following materials is most likely to be used to create a working (engineering) drawing

1 point

Cartridge paper

Foil-lined board

Isometric paper

Solid white board

Clear selection

Solid white board is often used in the manufacture of architectural models. Which of the following describes solid white board?

1 point

A heavy type of card that can be printed on

A lightweight material that can be cut on the laser cutter

A material of 150gsm that is available in a range of colours

A transparent material that can be drawn on with water-based markers

Clear selection

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