1) Discuss the advantages and disadvantages of RT-PCR (10 marks)

2) Cost estimating involves the collection, analyse and summarising of data readily available for a construction project. Estimating is an important and key step in construction process as its reliability in terms of accuracy from the conceptual stage to the final stage determines the success or failure of a project.

Discuss factors affecting the accuracy of cost estimates and explain types of cost estimation methods applicable to your chosen project. (10 marks)