FINAL 18 May 2016, questions and answers PDF

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Question  1Correct Mark 1 out of 1.Flag question Question textOne ____________ would be to resolve a pair of forces using the parallelogram or triangle method into a resultant.Select one: a. none of the choices b. graphical method  c. logical method d. algebraic method ...

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Question 1 Correct Mark 1.00 out of 1.00

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Question text One ____________ would be to resolve a pair of forces using the parallelogram or triangle method into a resultant.

Select one: a. none of the choices b. graphical method c. logical method d. algebraic method

Feedback Your answer is correct. The correct answer is: graphical method Question 2 Correct Mark 1.00 out of 1.00

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Question text Determine the values of α and θ so that the forces shown in the figure will be in equilibrium.

Select one: a. α =6.57 degrees and θ = 2.96 degrees

b. α =4.57 degrees and θ = 58.96 degrees c. α =46.57 degrees and θ = 28.96 degrees d. none of the choices

Feedback Your answer is correct. The correct answer is: α =46.57 degrees and θ = 28.96 degrees Question 3 Correct Mark 1.00 out of 1.00

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Question text The three forces in the figure create a vertical resultant acting through point A. If T is known to be 361 lb., compute the values of F and P. NOTE: see fig-4 from the LIST OF FIGURE in week-1 Select one: a. none of the choices b. F = 2532.9 lb , P = 50.706 lb c. F = 25.329 lb , P = 507.06 lb d. F = 253.29 lb , P = 507.06 lb

Feedback Your answer is correct. The correct answer is: F = 253.29 lb , P = 507.06 lb Question 4 Correct Mark 1.00 out of 1.00

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Determine the magnitude of P and F necessary to keep the concurrent force system in the figure in equilibrium. NOTE : see fig-8 from the LIST OF FIGURE in week-1 Select one: a. none of the choices b. P = 133.25 N, F = -86.37 N c. P = -133.25 N, F = 86.37 N d. P = -13.325 N, F = -86.37 N

Feedback Your answer is correct. The correct answer is: P = -133.25 N, F = 86.37 N Question 5 Correct Mark 1.00 out of 1.00

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Question text A 300-lb box is held at rest on a smooth plane by a force P inclined at an angle θ with the plane as shown in the figure. If θ = 45°, determine the value of P and the normal pressure N exerted by the plane.

NOTE : see fig 7 from the LIST OF FIGURE in Week-1 Select one: a. P = 21213 lb , N = 40.981 lb b. none of the choices c. P = 212.13 lb , N = 409.81 lb d. P = 2121.3 lb , N = 40981 lb

Feedback Your answer is correct. The correct answer is: P = 212.13 lb , N = 409.81 lb Question Correct

6

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Question text Two weightless bars pinned together as shown in the fig-15 from the LIST OF FIGURE in Week-1 support a load of 35 kN. Determine the forces P and F acting respectively along bars AB and AC that maintain equilibrium of pin A.

Select one: a. P = 90.14 kN, F = 64.03 kN b. P = 900.14 kN, F = 4.03 kN c. none of the choices d. P =9.14 kN, F = 6.03 kN Feedback Your answer is correct. The correct answer is: P = 90.14 kN, F = 64.03 kN Question 7 Correct Mark 1.00 out of 1.00

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Question text The figure represents the concurrent force system acting at a joint of a bridge truss. Determine the value of P and F to maintain equilibrium of the forces.

NOTE : see fig-9 from the LIST OF FIGURE in Week-1 Select one:

a. P = 265.45 lb, F = 472.44 lb b. none of the choices c. P = 65.45 lb, F = 12.44 lb d. P = 165.45 lb, F = 412.44 lb

Feedback Your answer is correct. The correct answer is: P = 165.45 lb, F = 412.44 lb Question 8 Correct Mark 1.00 out of 1.00

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Question text Determine the resultant of the force system shown in the figure and its x and y intercepts. NOTE: see fig-3 from the LIST OF FIGURE in WEEK-1 Select one: a. none of the choices b. 164.311 lb c. 163.114 lb d. 161.314 lb

Feedback Your answer is correct. The correct answer is: 161.314 lb Question 9 Correct Mark 1.00 out of 1.00

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Cords are loop around a small spacer separating two cylinders each weighing 400 lb. and pass, as shown in the fig-12 from the LIST OF FIGURE in Week-1 over a frictionless pulley to weights of 200 lb. and 400 lb. Determine the angle θ.

Select one: a. θ = 76 degrees b. θ = 70 degrees c. θ = 60 degrees d. none of the choices

Feedback Your answer is correct. The correct answer is: θ = 60 degrees Question 10 Correct Mark 1.00 out of 1.00

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Question text The 300-lb force and the 400-lb force shown in the figure are to be held in equilibrium by a third force F acting at an unknown angle θ with the horizontal. Determine the values of F. NOTE : see fig-10 from the LIST OF FIGURE in Week-1

Select one: a. F = 205.31 lb b. none of the choices c. F = 20.31 lb d. 5.31 lb

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Your answer is correct. The correct answer is: F = 205.31 lb Question 11 Correct Mark 1.00 out of 1.00

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Question text The effect of a certain non-concurrent force system is defined by the following data: summation of fx=90kN, summation of fy=-60kN, and summation of Mo=360kN counter clockwise. Determine the point at which the resultant intersects the x-axis. Note: see Fig 1, from the LIST OF FIGURE from week-1. Select one: a. none of the choices b. 8 m c. 6 m d. 7 m

Feedback Your answer is correct. The correct answer is: 6 m Question 12 Correct Mark 1.00 out of 1.00

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Question text The cable and boom shown in the figure support a load of 600 lb. Determine the tensile force T in the cable and the compressive for C in the boom.

NOTE : see fig-5 from the LIST OF FIGURE in Week-1 Select one: a. none of the choices b. T = 439.24 lb , C = 537.94 lb c. T = 43.24 lb , C = 53.94 lb d. T = 49.24 lb , C = 57.94 lb

Feedback Your answer is correct. The correct answer is: T = 439.24 lb , C = 537.94 lb Question 13 Correct Mark 1.00 out of 1.00

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Question text Forces P and F acting along the bars shown in the figure maintain equilibrium of pin A. Determine the values of P. NOTE : see fig-14 from the LIST OF FIGURE in Week1

Select one: a. P = 14.76 kN b. P = 4.76 kN c. P = -14.76 kN d. none of the choices

Feedback Your answer is correct. The correct answer is: P = -14.76 kN Question 14 Correct Mark 1.00 out of 1.00

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Question text The resultant of non-concurrent force system is defined according to _________, __________, and ___________.

Select one: a. magnitude, displacement, position b. speed, inclination, position c. magnitude, inclination, position d. none of the choices

Feedback Your answer is correct. The correct answer is: magnitude, inclination, position Question 15 Correct Mark 1.00 out of 1.00

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Question text ________________ is defined as the forces which lies in the line of activity but do not intersect or forms a parallel at a common point. Select one: a. Non-Concurrent Forces b. Forces c. none of the choices d. Parallel Forces

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Your answer is correct. The correct answer is: Non-Concurrent Forces Question 16 Correct Mark 1.00 out of 1.00

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Question text If there is a great number of forces, the ___________ to this system would potentially be simpler if the forces that are applied to the system are easy to break into components.

Select one: a. logical solution b. algebraic solution c. graphical solution d. none of the choices

Feedback Your answer is correct. The correct answer is: algebraic solution Question 17 Correct Mark 1.00 out of 1.00

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Question text Since all of these forces are not entirely parallel, the position of the resultant can be established using the ________ or ________ methods.

Select one: a. analytical, graphical b. graphical, logical c. graphical, algebraic d. none of the choices

Feedback Your answer is correct. The correct answer is: graphical, algebraic Question 18 Correct Mark 1.00 out of 1.00

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Question text The cylinders in the figure have the indicated weights and dimensions. Assuming smooth contact surfaces, determine the reactions at A, B, C, and D on the cylinders.

NOTE : see fig-13 from the LIST OF FIGURES in Week-1 Select one: a. none of the choices b. A = 47.39 kN, B = 60 kN, C = 40.85 kN, D = 47.39 kN c. A = 347.39 kN, B = 600 kN, C = 400.85 kN, D = 347.39 kN d. A = 37.39 kN, B = 6000 kN, C = 4000.85 kN, D = 37.39 kN

Feedback Your answer is correct. The correct answer is: A = 347.39 kN, B = 600 kN, C = 400.85 kN, D = 347.39 kN Question 19 Correct Mark 1.00 out of 1.00

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Question text A cylinder weighing 400 lb. is held against a smooth incline by means of the weightless rod AB in the figure. Determine the forces P and N exerted on the cylinder by the rod and the incline. NOTE : see fig-6 from the LIST OF FIGURE in Week-1 Select one: a. P = 0.9038 N , N = 418.60 lb b. P = 90.38 N , N = 41.860 lb c. P = 9038 N , N = 4186.0 lb d. none of the choices

Feedback Your answer is correct. The correct answer is: P = 0.9038 N , N = 418.60 lb Question 20 Correct Mark 1.00 out of 1.00

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Question text In a certain non-concurrent force system it is found that summation of fx=-80lb, summation of fy=160lb and summation Mo=480lb-ft in a counterclockwise sense. Determine the point at which the resultant intersects the y-axis. NOTE: see figure 2 from the LIST OF FIGURE in Week-1 Select one: a. 8 ft b. 6 ft c. 7 ft

d. none of the choices

Feedback Your answer is correct. The correct answer is: 6 ft...