Statistics of Rigid Bodies Assessment Welcome, You are about to take up the Statistics of Rigid Bodies Assessment. Please take note of the following before you take the assessment. This assessment is timed for 60 Mins and auto submit. Scores and correct answer will be displayed after taking up the assessment. You can only take the assessment twice so make sure you have a strong internet connection. All questions are required to have an answer. This assessment is composed of 10 items multiple choice type of question. Always remember: THINK, CHECK AND SUBMIT. If you have any concern, please feel free to contact us. E-mail Address: assessment@flightwingsaviation.com Facebook Page: www.facebook.com/flightwingsaviation GOODLUCK! Email Adress LMS USERNAME FULL NAME CLASS SECTION/SCHEDULE (FRI-AM, FRI-PM, SAT-AM, SAT-PM, SUN-AM, SUN-PM) 1. Find the components in the x, y, u and v directions of the force P = 10 kN shown in Fig. A. Px = 6N Py = 7NB. Px = 9N Py = 8NC. Px = 8N Py = 6ND. Px = 6N Py = 2N A B C D None 2. The body on the 30° incline in Fig. is acted upon by a force P inclined at 20° with the horizontal. If P is resolved into components parallel and perpendicular to incline and the value of the parallel component is 1800 N, compute the value of the perpendicular component and that of P. A. P = 2800NB. P = 2700NC. P = 2900ND. P = 300N A B C D None 3. The cantilever beam shown in Figure is built into a wall 2 ft thick so that it rests against points A and B. The beam is 12 ft long and weighs 100 lb per ft. A B C D None 4. The weight W of a traveling crane is 20 tons acting as shown in Figure. To prevent the crane from tipping to the right when carrying a load P of 20 tons, a counterweight Q is used. Determine the value and position of Q so that the crane will remain in equilibrium both when the maximum load P is applied and when the load P is removed. A. Q = 20,000 kg; x = 6ftB. Q = 17 tons; x = 3ftC. Q = 12 tons; x = 6ftD. Q = 17,000 kg; x = 6ft A B C D None 5. As shown in Figure, a homogeneous cylinder 2 m in diameter and weighing 12 kN is acted upon by a vertical force P. Determine the magnitude of P necessary to start the cylinder turning. Assume that μ = 0.30. A. P = 3KNB. P = 0.5KN C. P = 10KN D. P = 6KN A B C D None 6. The dimensions of the T-section of a cast-iron beam are shown in Figure. How far is the centroid of the area above the base? A. Y = 8.07 “ B. Y = 4.08” C. Y = 3.07” D. Y = 1.11” A B C D None 7. Compute the forces in bars AB and DF of the scissors truss shown in Figure. A. AB = 70.75 kN compression ; DF = 9.60 kN compressionB. AB = 70.75 kN compression ; DF = 42.45 kN compressionC. AB = 10.75 kN compression ; DE = 19.60 kN compressionD. AB = 700.75 kN compression ; DE = 90.60 kN compression A B C D None 8. It is a structure which is composed completely of axial members that are assumed to be weightless. A. Ideal TrussB. Roller supportC. HingeD. Howe truss A B C D None 9. The structure shown in Figure is hinged at A and C. Find the horizontal and vertical components of the hinge force at B. A B C D None 10. A bar AE is in equilibrium under the action of the five forces shown in Figure below. Determine T. A. 130 kN up to the left B. 170 kN up to the left C. 130 kN down to the right D. 170 kN down to the left A B C D None 1 out of 1
