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Expert help when you need it- Q1: 2. A cam, with a minimum radius of 25 mm, rotating clockwise at a uniform speed is to be designed to give a roller follower, at the end of a valve rod, motion described below : 1. To raise the valve through 50 mm during 120° rotation of the cam; 2. To keep the valve fully raised through next 30°B 3. To lower the valve during next 120°; and 4. To keep the valve closed during rest of the revolution i.e. 90° ;See Answer
- Q2: The Fink truss supports the wind loads shown. Determine the force in each member and indicate if the members are in tension or compression. Approximate each joint as a pin. Ex=4000cos60=2000lbs.(left) sumMe=20000/(10cos30)=Ay=2310lbs(up) Ey=-4000sin60+2310=-1090lbs.(down)See Answer
- Q3: If the rocker at A were replaced with a hinge similar to the hinge at E and the resultant magnitude at E is equal to that at hinge A, recalculate the reactions at A and E. Ах Ay. Ex EySee Answer
- Q4: \text { Question } 4: List all zero force members: Determine the length of members BJ and JH: Determine the length of members FG and El: Determine the force in these four members and whether the members are in tension or compression:See Answer
- Q5: If the box on top of this scissor lift weighs 50 N what is the required horizontal force at P to maintain equilibrium? Disregard the weight of the members and platform. Theta equals 37 degrees and 1 =2 in length, 2L= 10 m. d= 6 m. Hint: Draw four FBD and solve for the unknowns.See Answer
- Q6: Examining the front planar truss of this bridge, how many zero force members are observed? Number the members 1 through 21. If the right side of the truss is supported by a rocker and the left side is supported by a hinge, list the members that can be inspected for tension or compression? If a 500 lb load was applied downward on the pin between the green star and the blue box,determine the force in the upper left horizontal member (orange arrow), and the two members directly below (purple pentagons).See Answer
- Q7: ) Draw complete bond graph 2) solve For the appropriate equations of f state 3) place into state apace FormSee Answer
- Q8: A ball is swung in a vertical circle at the end of a string. Assuming that the total energy of the ball-Earth system remains constant, show that the tension in t he string at the bottomis greater than the tension at the top by six times the weight of the ball. Note that the radius ofthe cirde doeN not affect this answer. See Answer
- Q9: The diameter of the roller is 20 mm and the diameter of the cam shaft is 25 mm. The displacement of the valve, while being raised and lowered, is to take place with simple harmonic motion. a) Draw the profile of the cam when, the line of stroke of the valve rod passes through the axis of the cam shaft, and b) Determine the maximum acceleration of the valve rod when the cam shaft rotate sat 100 r.p.m. c) Draw the displacement, the velocity and the acceleration diagrams for one complete revolution of the cam.See Answer
- Q10: On engineering or graph paper, draw by hand the top, front, and right-side view for each block. Include the respective labels: "Top view", "Front view" or "Side view".Please be consistent with your labeling. Please remember to always submit your work in a professional manner. This is expected in the profession (real world). Hence, please pay attention to the final appearance of your work (Points may be deducted if the student fails to satisfy this requirement): 1) Make sure to align the orthographic projections for each block as discussed in class. 2) In addition, make sure that your orthographic projections are sized correctly. See Answer
- Q11: Draw In the dimensioning for each of the three remaining orthographic projections. Follow the rules that were highlighted In class. NEATNESS COUNTS! For these drawings, text height Is equal to 1 box of the grid. Dimension by putting W for width,L for length, and H for height. See Answer
- Q12: Solve the following beams (1-4) using methods (I-VI) for the following items (a-d). State when the specified method cannot solve for a specific item, (480 pts) I. Equilibrium II. Shear-Moment Diagrams III. Superposition IV. Integration V. Singularity Functions VI. Castigliano's Theorem Solution Itemsa. Reactions (5 pts)b. Deflection at indicated cut (5 pts)c. Slope at indicated cut (5 pts)d. Max deflection (5 pts) See Answer
- Q13:If a = 5, determinc (a) and (b) IxxSee Answer
- Q14:Draw the followings views (all of them in mm): 110 38 50 80 P22 R15 20 50 30See Answer
- Q15: Use graphing paper as it's a hand drawing assignment. You can use online graphing paper if that's what you prefer; however, need to mention the scale and the dimensions in the drawing.... (a) Draw the isometric view of the part shown (based on the given views),use the isometric grid provided. Each square on the drawing is equal to each isometric square on the grid. (b) Similar to question in part (a) draw the isometric view for the part given.Isometric grid is provided for guidance. See Answer
- Q16: Sketch the isometric projection and the orthographic projections of the object below.Properly dimension each sketch. All dimensions shown are in inches. On your paper, 1 drawing unit represents 0.125". See Answer
- Q17:The given: Project Description Beach Town is a coastal city on the west coast of Florida which is experiencing unprecedented growth because of recent investments in the area by various Fortune 500 companies and influx of people to the region. Historically Beach Town had a uniform mix of industrial, commercial, and residential community, and attracted tourists from various parts of the world because of its white sand beach. Recent investments in industrial and commercial sectors as well as large number of people settling in this area have created an explosive population growth, and the demand for freshwater has sky rocketed. A simplified map of Beach Town is attached. While the sketch is not drawn to scale, the relative positions of the various features of the city are depicted accurately. A river flows through the city and eventually flows in to the Gulf of Mexico. The base flow of the river (during winter) is approximately 500 cubic feet per second (CFS). There is a thriving community along the beach that caters to the tourists. During summer, the city receives approximately 1000 tourists per day which creates additional water demand. It is expected that number of tourists will increase by 10% each year for the next 20 years. Industrial establishments are located on the river upstream of the city. The establishments are grand fathered to discharge treated effluent in the river. Stormwater runoff from the manufacturing facilities drains in the river without much treatment. The industries on the river are permitted to withdraw freshwater from the river. A combined municipal/industrial landfill is located on the northwest boundary of the city that receives wastes from the community as well as from the industries. A freshwater lake is located within 4 miles of the city boundary and is relatively pristine. The city is also surrounded by high quality wetlands along both north and south boundaries. The overall population of the city is characterized as progressive and has active involvement in local decisions.See Answer
- Q18:Communicate why you would choose CL2, NaHOCL, UV for disinfection, and which applications (drinking water Vs. wastewater. See Answer
- Q19: You are a civil engineer on a team designing a bridge for a state government. Yourteam submits what you believe to be the best design by all criteria, at a cost that iswithin the limits originally set by the state DOT client. However, some monthslater, the state undergoes a budget crisis and cuts your funds. Your supervisor, alsoa qualified civil engineer, makes design changes to achieve cost reduction that hebelieves will not compromise the safety of the bridge. You are not so sure, thoughyou cannot conclusively demonstrate a safety hazard. You request that a newsafety analysis be done. Your supervisor denies your request on the grounds oftime and limited budget. What do you do?See Answer
- Q20: Compare the designs, waste types, and byproducts of landfills and incinerators.See Answer
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