IC3 - MIDTERM (SPEEDRUN) скачать в хорошем качестве

IC3 - MIDTERM (SPEEDRUN)

‪@GillesaniaEngineeringVideos‬ ‪@KippapEducation‬ ‪@cebox‬ ‪@EngrHLDC‬ 1. A point in a material is subjected to principal stresses of 600MPa and 200MPa, both compression. The shear stress 15º clockwise from the major principal plane is: A. 350MPa B. 100MPa C. 200MPa D. 150MPa 2. A 6m propped beam is fixed at one end and roller supported at the other end. The vertical reaction at the roller support due to an applied uniform load of 10kN/m on its entire span is: A. 37.5kN B. 22.5kN C. 40kN D. 55kN 3. The point below the ground where earthquakes originate is called: A. focus B. epicenter C. base shear D. ground zero 4. Assuming smooth contact surfaces and W=120kN, find the tension T (kN) on wire DE. A. 46.2 B. 138.6 C. 85.3 D. 69.1 5. A fully-restrained 4m beam carries a 25kN load applied at midspan. The bending moment at the fixed supports is: A. 40kN-m B. 12.5kN-m C. 33.3kN-m D. 25.0kN-m 6. The frame shown has a roller support at E and is hinged at A. Find the horizontal reaction at C. A. 4.75kN B. 3.22kN C. 2.38kN D. 2.00kN 7. A 100mm x 300mm rectangular wooden beam standing upright is subjected to a 30kN shear force. The shear stress 20mm above the neutral axis is: A. 2.33 MPa B. 1.20 MPa C. 1.47 MPa D. 0.99 MPa 8. A road or railway on the upper part of an embankment across a low, wet, marshland, or body of water. A. Causeway B. Jetty C. Groin D. Levee 9. The continuous beam is loaded as shown. Find the regular (not modified) distribution factor DFBC at end BC. A. 0.45 B. 0.5 C. 0.33 D. 0.67 10. A trowel float is used in which construction work: A. woodwork B. concrete masonry C. tinsmithry D. steelwork 11. The Howe truss shown supports the loads applied at the joints. Find the compressive stress on member BC if its cross-sectional area is 1500mm2. A. 250MPa B. 139MPa C. 100MPa D. 236MPa 12. A round bar 16mm in diameter is bent by a couple such that the maximum bending stress in the section is 160MPa. If the modulus of elasticity of the material is 200,000 N/mm2, which of the following gives the radius of curvature by the bar. A. 4.2m B. 10.0m C. 7.5m D. 1.6m 13. A tube 0.20 inch thick has a circular shape as shown. If the allowable shearing stress of the tube is 6ksi, what is the torque capacity of the tube? A. 225.6k-in. B. 323.5k-in. C. 458.7k-in. D. 204.8k-in. 14. The radius of gyration of a circular section of diameter D is: A. D/2 B. 1.5D C. D/4 D. 2D 15. The point between the ends of the beam span where the bending moment is zero is called: A. Neutral axis B. Center of gravity C. Shear center D. Inflection Point 16. A 2.5m simple beam carries a uniform load of 1.1kN/m on its entire span. The beam consists of two 200mmx75mm lumbers joined by 8mm diameter bolts as shown. If the allowable shear stress on the bolts is 90 MPa, find the required bolt spacing. A. 423mm B. 329mm C. 156mm D. 210mm 17. A simply supported beam of span L(m) carries a uniform load w(kN/m) on its entire span. If both ends of the beams are fixed, the maximum bending moment will decrease by: A. 1/2 B. 1/3 C. 1/4 D. 2/5 18. Which material property makes steel bars desirable as a reinforcement in concrete beams? A. Malleability B. Workability C. Ductility D. Hardness 19. Two steel plates 10mm thick each are connected by four 8mm diameter bolts as shown. The shearing stress on the bolts is: A. 62.5MPa B. 44.2MPa C. 99.5MPa D. 21.7MPa 20. A structure constructed near the coast and into the sea to protect the vessels from the effects of both weather and long-shore drift: A. Marina B. Breakwater C. Pier D. Quay 21. The frame shown is indeterminate to which degree? A. 7 B. 12 C. 6 D. 9 22. A roadway bridge of equal spans, usually supported by a series of arches, piers, or columns over a valley, gorge, or body of water. A. Breakwater B. Viaduct C. Dissipator Block D. Aqueduct 23. The bar force on member CD of the truss shown is: A. 20kN B. 0kN C. 50kN D. 100kN 24. Two lumbers each 3''x6''x8' were glue-laminated (glulam) to produce a wooden post. If the two lumbers cost Php 1,392.00, what is the price of lumber per board foot? A. Php72.00 B. Php45.00 C. Php58.00 D. Php36.00 25. A 150mm diameter solid shaft 2m long supports a torque of 20kN-m at both ends. The maximum shear stress produced on the shaft is: A. 30.2MPa B. 24.5MPa C. 55.0MPa D. 18.7MPa