Extracted text: Question 1 (a) Differentiate between Ultimate Limit State and Serviceability Limit State giving examples. (b) What are the factors that influence the choice of cover in a reinforced concrete member? (c) Given a retaining wall, explain which side of the wall must have greater cover and explain why. (d) What are the importance of material safety factors and load safety factors? (e) Explain how shear force is resisted in a beam without shear links. (f) Differentiate between Rankine and Coulombs methods of calculating earth pressures on a retaining wall.