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EAS207-1st-exam-2003-06

# EAS207-1st-exam-2003-06 - EAS 207 STATICS First Examination...

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Unformatted text preview: EAS 207 - STATICS @ First Examination Fall 2003 . V a Time: '1 hr. & 50 minutes Total Points: 100 Note: 1. Closed Book Exam 2. Use the Vector a roach for all moment calculations in questions 1 & 2. 3. Draw Free-body grams and reference axes for problem 3. 0.1 Determine the moment due to force F at point C, and then calculate its moment about lines CE and CD. (33‘points) F: 1000 N 160 mm 0.2 Replace the forces shown in Fig. 2 by an equivalent force system at pomt A. ( 33 points ) ’ Q. 3 For the frame shown in Fig. 3, determine the force in the cable BE 0 ’ and the reactions at support A & F. (34 points) \ EAS 207 - STATICS First Examination ‘ Fall 2004 “mm. 1 in 55mm) ' " L Points: 100 Note: 1. Closed Book Exam 2. Use the Vector approach for all moment calculations in questions 1 & 2. 3. Draw Free-body diagrams and reference axes for problem 3. 0.1 Determine the moment about line AB due to the 100 lb force and the 3000 ft-lb couple moment. Use Vector approach for moment calculations. ‘ ’ (38 points) 0.2 Replace the forces shown in Fig. 2 by an equivalent force system at point B. Find the simplest resultant of the given force system and its location from point B. . (33 points) 375 N 1:; .L J/ Q. 3 For the frame shown in Fig. 3, determine the support reactions at A and C. (Hint: Use only one'FBD of member AE with Disk B) (34 points) EAS 207 - STATICS . _ First Examination --- Fall 2005 Time: 2 hours Total points = 100 Notes: 1. Closed Book Exam 2. Use the Vector approach for all moment calculations in question 1. 3. Draw Free-body diagrams and reference axes for problem 3. 0.1) The 180 lb force is applied atpoint A of the bracket shown in Fig.1 Determine the moments of this force about point B, about point C, and about the line BC. y; 63 points) 6., 0.2) Replace the forces shown in Fig. 2 by an equivalent force system at point B. Find the simplest resultant of the given force system and its location from point B along member CBD. (33 points) Q. 3) The lever ABC is pin-supported at A and connected to a short link BD as shown in Fig.3. Find the reactions at A and D. (34 points) EAS 207 - STATICS First Examination Fall 2006 ”Tifne: | hr. & 50 mins. Total Points: 100 Note: Closed Book Exam Q.1 Determine the moment about line CD due to the 500 N force and the 1000 N-mm couple moment. Use Vector approach for moment calculations. Use the Vector approach for all moment calculations. (33 points) / 900 N I/ 250 mm \"“‘ I000 N~mm Q.2 Replace the forces shown in Fig. 2 by an equivalent force system at point 0. Find the simplest resultant of the given force system and location of its line of action along x- and y-axes. (33 points) ‘ Q. 3 it is desired that a person be able to begin closing the van hatch from the open position shown in Fig.3 with a 10-lb vertical force P. Determine the necessary force in each of the two hydraulic struts AB. The mass center of the 90-lb door is 1.5 inches directly below point A. Treat the problem as two- dimensional and consider the Free-body diagram of the Hatch AO. Also, find , the support reactions at hinge 0. Use ‘Scalar approach’ for moment calculations. Draw Free-body diagrams and reference axes. L34 points) / K ...
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