Author: Anonymous

A contractor’s budget for a project planned labor cost of $2.0 million for 40,000 labor hours. At the halfway point, 22,000 hours have been worked at a cost of $1.2 million. What is the labor cost variance at this point (actual cost vs. budgeted cost for actual hours) and how should it be interpreted?

Think of a close friend or family member and answer the following three-part prompt: a) Identify their dominant intelligence type using Howard Gardner’s framework. b) Analyze their past behavior or skills to explain why you selected this type. c) Describe a specific strategy you could use to help this person solve a complex problem, utilizing their dominant intelligence.

What is a common strategy for a Visual learner to improve their memory of a lecture?

For a beam with the cross-section shown (w = 18 in. and h = 5 in.), find the distance from the bottom surface of the beam to the centroid.

True or False: In construction, a project with a positive net present value (NPV) based on forecasted cash flows will always improve the company’s short-term liquidity if accepted.

If P = 200 kN, determine the normal stress produced at point H of the pier support shown.

Use the graphical method to construct the shear-force and bending moment diagrams and identify the magnitude of the largest bending moment (consider both positive and negative peaks). Use w = 220 lb/in., a = 1.000 in. and b = 0.875 in. The reaction forces for this beam are Ay = Dy = 96.25 lb (both upward).

If w = 6.50 in., find the moment of inertia about the z axis. The centroid of the section is located 2.7130 in. above the bottom surface of the beam.

An aluminum [E = 10,050 ksi] bar is bonded to a steel [E = 26,900 ksi] bar to form a composite beam as shown. Find the distance to the centroid of the transformed section from the bottom surface of the beam.

For a beam with the cross-section shown and loaded as shown, find the magnitude of the maximum bending stress in the beam. The moment of inertia about the z axis is 257,633 mm4, the centroid of the section is located 19.67 mm above the bottom surface of the beam, and M = 435 N-m.