1- Utility lines / piping knowing the location of incoming services
2- Communications cables
3- cave ins (shoring )
4- protecting the piping from bearing any structural weight by either arch, Lentil or iron pipe sleeve
5- soil conditions acidity.
what geogaphical features are needed when building a hydroelectric dam
running water
It depends entirely on the design of the motor.
Theconstruction workers needed interchangeable parts for their model building.
There is no formula needed, they are the same thing, just two different wordings.
There are no major precautions for access during emergency procedures.
yes
There are a number of precautions that needed in an area of electronic safety. You should not touch naked wires and should have protective wear at all times among others.
skills of running
There is no reason why diabetes and running should be avoided so long as you are sensible. Run with a buddy who knows about your condition and keep a nutrient gel with you to top up your energy levels if needed. There are advantages to diabetes and running which can include lower blood glucose levels. As will all conditions, common sense and a bit of planning there is no reason why diabetes and running cannot go together.
There are no precautions necessary for travelling to Australia, beyond the usual basic safety precautions one would take within one's own country. No vaccinations are needed.
To alert you to needed precautions
what geogaphical features are needed when building a hydroelectric dam
It depends on the building
Britain started building dreadnoughts because they needed to fight for the war and needed protection.
Safety precautions are neccessary. Incorrect use of electricity can cause electric shock and fire. Both are life threatening and a real risk.
I needed my safety helmet if I would be building anything.