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be damaged easily.
* Any accessory equipment may be used, within the limits of
technical possibility and reasonable cost.

f The stonemasons suggested a solution to the statue
problem. Read their idea on page 99 and compare it with
your solution. What external factors could cause some
problems with their idea? How could these be solved?

III Assessing feasibility

8a In pairs, dscuss what is meant by feasibility.
b Look at the flow chart and, in pairs, discuss how budgets and schedules affect the
technical feasibility of design, development and manufacturing solutions.
Size of budget
A bigger/smaller budget often means ...

Length of schedule
A longer/shorter schedule often means ...

Technical feasibility
... more/less sophisticated/innovative design ... higher/lower quality/reliability/efficiency.

9a ► 6.4 Viktor, an engineer from a German company that makes and installs industrial
gantry cranes, is phoning Rajesh, the construction manager of a manufacturing plant
currently being built near New Delhi, India. They are discussing the gantry crane due to be
installed at the plant. Read the conversation and answer the following questions.
5 Why are holes needed in the concrete walls?
6 What are core drilled holes and what are preformed holes?
7 In this context, what is meant by play?
8 What impact will the lack of play around the bolts have (on the construction)?
9 Apart from technical questions, what two issues will determine the most feasible way of
forming the holes?

Viktor: So all the steel beams shown on this drawing are going to be fixed to the walls, bolted
through the concrete.
Rajesh: Right.
Viktor: So to bolt through, obviously we need holes in the walls. We can core drill them, with a
diamond drill, which would obviously be done after the walls have been cast. Urn, we'd drill
them ourselves, as part of our contract package. Alternatively, the holes can be preformed by
putting plastic tubes into the concrete when they cast the walls, in which case the contractor
responsible for the concrete structure would do the job.
Rajesh: OK.
Viktor: Now, the problem is, these bolts won’t have much play.
Rajesh: How do you mean?
Viktor: Well, they've got to fit quite tightly in the holes, so they won't be able to move much.
There won't be much space around them, to adjust their position.
Rajesh: I see.
Viktor: So that means the holes have got to be positioned very precisely. If they're slightly out of
position on the wall, they won’t match up with the holes that have been pre-drilled through the
steel beams, at our factory.

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