unit3

Most thermoplastics are capable of …………. recycled easily.

The roller is covered with felt because of its ability to …………. water.

Copper is able to …………….. electricity.

Fortunately, the shelves in the warehouse are made of steel instead of wood, which means that they are incapable of ……………….burnt if there is a fire.

__________ are able to absrob moisture.

Pure cotton fabrics are able to ………… moisture.

Inaudible means incapable of …………. heard.

Wearable means able to ………. worn as clothing.

Portable means able to ………………. carried.

Rubber is capable of ……………… stretched.

We can’t hear the sound of ants because it is ………………

The sail shouldn’t be made of a material which has good water ………………

because we don’t want the sail to become too heavy in a storm.

Rubber is capable of _____________ stretched.

It is also capable of _____________ to its own shape and size.

_________ is able to be stretched ⇒ to 500% of its original size,

Spandex is able to be _____________ ⇒ to 500% of its original size,

Spandex is able to be stretched ⇒ to 500% of its original size, without _____________

(c) ___________ fabrics  have the ability to retain their shape

(c) Polyester and nylon fabrics have the ability to retaun their shape ⇒ after they _____________

(d) ________ has the capability of absobring impact  and insulatinggoods from heat.

(d) Plastic foam (EPS) has the capability of _____________ impact  and _____________  goods from heat.

(e) __________ is a good material for making sunglasses, because it can resist scratches

(e) Polycarbonate is a good material for making sunglasses, because it can resist scratches, and it ____________  through easily

Concrete __________ the properties of lightness and buoyancy in water.

A ___________  is unable to be re-melted and re-shaped many times. [incapable]

Rubber and plastic are ________ electricity very well.

Rubber and plastic are ___________ materials

The fire was caused by ________ saftey equipment maintaince

Glass has ________ poor shatter-resistant properties.

A __________ fibre is any fibre which has been produced in nature, either by plants or animals. For example cotton, silk, and wool are __________ fibres.

A __________ fibre is one which has been manufactured by humans using technology. For example nylon and polyester are __________ fibres.

A __________ is a long, single strand of fibre, like a fishing line. It can be natural or synthetic.

A __________ is a short strand of fibre.

Raw cotton consists of many short __________ which are then spun and twisted together to form longer strands of yarn.

An example of a natural __________ is silk. An example of a synthetic __________ is polyester.

If a single polyester filament is used, it is called a __________ thread.

When two or more filaments are twisted together to form a stronger thread, this is called __________.

A __________ thread is a thread which contains three filaments twisted together.

A __________ thread is a thread which contains two filaments twisted together.

After raw cotton has been picked from the plant in the field, it goes to ___________ the machine.

In the ginning machine, the seeds are taken out of the raw cotton in order to make ___________.

Many strands of cotton yarn are then woven together in the __________ machine to form cotton ___________.

The cotton __________ is then dyed and pre-shrunk before being cut and stitched into __________.

The cotton fibre is then taken to ___________. Here the fibre is spun until it forms long strands of cotton yarn.

Wearable means:

Portable means:

Corrosive means:

Non-combustible means:

Abrasive means:

Indestructible means:

destructible

Shape-retentive means:

inaudible

Audbile

shape-retentive

corrodible

corrosive

destructive

Indestructible

Old plastic bottles made of PET are ______________ from recycling plants.

1. 1. Old plastic bottles made of PET are collected from _______ plants.

The plastic bottles are shredded and cut into small ______________.

The pellets are fed into __________ from where they are pushed in a long tube and heated.

The plastic is ________ and is pushed out through the holes of ___________.

As the plastic emerges through the __________ holes, it is pulled into long thin _______.

The polyester filaments can be twisted together to form ___________

Hamid is a safety manager in a building company. He has written a report investigating the collapse of a building by his company. Safaa is his colleague.

Safaa  : (a) What's .................. ?
Hamid :  The purpose of my report is to find out why the building collapsed.

Safaa : (b) ................................ ?

Hamid : The Managing Director asked me to write it.

Safaa (c) :  .................................... ?

Hamid : I investigated the collapse by testing all the materials in the building.

Safaa (d) : .............................. ?

Hamid : I found that the concrete of the foundations had many cracks.

Safaa (e) ........................... ?

Hamid : I concluded that sub-standard concrete must have been used.

Safaa (f) : ................................... ?

Hamid :  I recommend that all concrete used by our company should be tested.

This is part two dialogue 

Assistant : Can I help you?

Heba: I'd like to buy a pair of shorts for cycling.

Assistant : What .......................... ?

Heba :I need a material which can be stretched.

Assistant : We have three stretchable materials.

Heba :......................... ?

Assistant : They are polyester, nylon, and spandex.

Heba:I need one which can absorb moisture well. |
Assistant : I think .................................

Heba: Ok, I will buy spandex.

Heba : Ok, I will buy spandex. .......................................... ?

Assistant It's 150 pounds.

Nylon is a _____________ fabric, which is why it is used for raincoat.