Q. No. 3: a) Explain the reason of using high strength steel in prestressed concrete. b) Outline (Explain with Sketch) Vehicular Design Loads described in AASHTO (1994). c) Describe the modes of failure of a RC Retaining wall.

20 How many acres of land is contained in the parcel "B" shown in the figure? 40 acres |||||| 10 acres 80 acres 160 acres 6

A parcel of land is in the shape of a pentagon. The vertices are labeled A through E. A surveyor gives you the following information regarding the parcel. Side Bearing Distance A to B Due West 420 feet B to C N 20° W 335 feet C to D N 28° E 475 feet D to E S 73° E 510 feet E to A No information No information Do the following: • Draw a diagram for the parcel of land. • Formulate a strategy for determining the area of the parcel using trigonometry. • Determine the area of the parcel, clearly showing all steps and calculations. Give area in units of square feet (correct to the nearest square foot) and in units of acres (correct to 3 decimal places).

Consider a lot whose corners have the following X and Y coordinates (in meters): A (198.300, 587.109), B (330.087, 438.965), C (650.903, 698.007), D (508.146, 855.635). Part A Find the area of the lot. Express your answer to five significant figures and include the appropriate units. area = Submit Provide Feedback Value Request Answer Units ?

The difference between an interval scale and a ratio scale is that     the interval scale has an absolute zero.     the interval scale is more reliable.     the ratio scale has an absolute zero.     both scales are nominal variables.