NARRATOR:
You will hear a university student discussing an entry for a global design competition with the professor.
NARRATOR:
First, you have some time to look at questions 21 to 25.
NARRATOR:
Now listen carefully and answer questions 21 to 25.
JOHN:
I'm preparing my entry for the global design competition, and my tutor suggested that you might help.
PROFESSOR:
Yes, I received your drawings.
PROFESSOR:
Come in and explain the project.
PROFESSOR:
What does the competition involve?
JOHN:
It's an international contest.
JOHN:
Entrance must propose a new design for an ordinary domestic kitchen appliance.
PROFESSOR:
Are there any special requirements, such as reducing energy use?
JOHN:
Energy efficiency was last year's theme.
JOHN:
This time we must take existing technology and find a genuinely new application for it.
PROFESSOR:
That sounds demanding.
PROFESSOR:
Which appliance did you select?
JOHN:
They're common in Australian homes, but most models look dull and nearly identical.
JOHN:
I think customers would pay slightly more for one with greater visual appeal.
PROFESSOR:
You call the design rock pool.
JOHN:
Its appearance resembles a rock pool at the beach.
JOHN:
A glass top lets you look inside.
PROFESSOR:
There's also a stone at the bottom.
PROFESSOR:
Is it decorative?
JOHN:
It serves a purpose.
JOHN:
You rotate the stone instead of pressing a switch to start the machine.
PROFESSOR:
So that is an unusual starting control.
PROFESSOR:
What is the main innovation?
JOHN:
The dishwasher uses carbon dioxide.
PROFESSOR:
Instead of water and detergent, how?
JOHN:
The carbon dioxide is pressurised until it becomes liquid.
JOHN:
It then enters the dishwasher and cleans the dishes.
PROFESSOR:
That would remove the need for powerful detergents.
PROFESSOR:
What happens after cleaning?
JOHN:
The liquid carbon dioxide and waste flow into a holding chamber while the dishes dry.
JOHN:
Depressurising the liquid converts it back into a gas.
JOHN:
Oil and grease are separated and sent into the waste system.
PROFESSOR:
And what happens to the carbon dioxide at the end?
PROFESSOR:
I hope it isn't discarded.
JOHN:
It returns to the cylinder, ready to be used repeatedly.
PROFESSOR:
An excellent idea.
PROFESSOR:
Will the machine ever be manufactured?
JOHN:
Probably not, but I don't mind.
PROFESSOR:
The project should still produce useful results.
NARRATOR:
Before you hear the rest of the conversation, you have some time to look at questions 26 to 30.
NARRATOR:
Now listen and answer questions 26 to 30.
PROFESSOR:
You appear to have considered the design thoroughly.
PROFESSOR:
What help do you need from me?
JOHN:
The entry has reached the final stage.
JOHN:
In a few months, I must give a presentation, and I'd like help preparing it.
PROFESSOR:
That should be manageable.
PROFESSOR:
What have you completed so far?
JOHN:
I have detailed drawings explaining the operation, as well as a 500-word paper.
PROFESSOR:
To have a strong chance of winning, you should also build a model.
JOHN:
I agree, but I've run into difficulties.
PROFESSOR:
Is the main problem finding suitable materials?
JOHN:
I need a professional finish, but high-quality materials are expensive.
PROFESSOR:
Projects like this raise the university's profile.
PROFESSOR:
Apply for a grant.
PROFESSOR:
I can help you complete the forms.
JOHN:
That would be great.
PROFESSOR:
I should also review your paper.
PROFESSOR:
In an international competition, all the technical information must be precise and comprehensive.
JOHN:
That would help a lot.
PROFESSOR:
Is there anything else?
JOHN:
Well, I'm really...
NARRATOR:
That is the end of part three.
NARRATOR:
You now have one minute to check your answers to part three.
