Question

CIEG 202-01: STATICS SP, 2019 Bob Efimba, PE. Impromptu Concept Quiz (ICQ) w3 (20 points), March 26, 9:40-11 am Name HU/IDN Score- f. Q3 State the specific conditions under which the following types of members will be in equilibrium: a) Two-force member b) Three-force member c) Two-moment member Which of the above members (give the letters of all that apply from the above list) can be found in: d) A plane truss e) A space truss ) A plane frame Q4. Consider the two unit vectors i and k. Give the magnitudes and directions of a) Their sum b) Their difference c) Their dot product d) Their cross-product Q5. Sketch a simple beam of span 20 ft, that lies along the x-axis, with an applied load of 30 k acting at a point on the beam that is 5 ft from one support (your choice) and inclined at 30 degrees to the positive or negative (again your choice x-direction. a) What is the moment of the 30 k force about a support that you identify? b) Determine and show the moment arm of the 30 k w.r.t that support. c) Determine and show the reaction components on the beam due to the load.

Answer 1

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