Assignment #12_ Attempt review

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School

Boston Architectural College *

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Course

2005

Subject

Mechanical Engineering

Date

Dec 6, 2023

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pdf

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6

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11/30/23, 11:58 PM Assignment #12: Attempt review https://online.the-bac.edu/mod/quiz/review.php?attempt=35719&cmid=308711 1/6 Started on Friday, December 1, 2023, 12:56 AM State Finished Completed on Friday, December 1, 2023, 12:58 AM Time taken 2 mins 11 secs Grade 7.00 out of 7.00 ( 100 %) Question 1 Correct 1.00 points out of 1.00 QUIZ If the geotechnical report shows that there is concern for differential settlement due to varying soil bearing capacities within the building footprint, what type of foundation system should the structural engineer consider for a two-story building? Select one: Auger-cast piles Drilled piers Mat slab Spread and strip footings Your answer is correct.
11/30/23, 11:58 PM Assignment #12: Attempt review https://online.the-bac.edu/mod/quiz/review.php?attempt=35719&cmid=308711 2/6 Question 2 Correct 1.00 points out of 1.00 Given a column supporting a total load of 120 kips and a soil bearing capacity of 3 kips per square foot, calculate the size of the spread footing supporting the column. Round to the nearest 6 inch dimension. Select one: 5.5ft x 5.5ft 6 ft x 6ft 6.5ft x 6.5ft 7ft x 7ft Your answer is correct.
11/30/23, 11:58 PM Assignment #12: Attempt review https://online.the-bac.edu/mod/quiz/review.php?attempt=35719&cmid=308711 3/6 Question 3 Correct 1.00 points out of 1.00 Question 4 Correct 1.00 points out of 1.00 Which retaining wall design below would provide greater resistance to overturning? Select one: A B Your answer is correct. Given the retaining wall below and an equivalent ±uid pressure of 35 pounder per cubic foot, calculate the overturning moment on the footing. Provide answer in ft*kips per linear foot (unit strip method) to one decimal place. Answer: 19.7
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11/30/23, 11:58 PM Assignment #12: Attempt review https://online.the-bac.edu/mod/quiz/review.php?attempt=35719&cmid=308711 4/6 Question 5 Correct 1.00 points out of 1.00 Question 6 Correct 1.00 points out of 1.00 Given the same retaining wall from the previous prompt and a soil density of 115 pounds per cubic foot, calculate the resisting moment provided by the weight of the soil on the footing. Provide answer in ft*kips per linear foot (unit strip method) to one decimal place. Answer: 46.6 Given the resisting moment and the overturning moment from the previous prompts, calculate the factor of safety for the retaining wall against overturning. Provide answer to one decimal place. Answer: 2.3
11/30/23, 11:58 PM Assignment #12: Attempt review https://online.the-bac.edu/mod/quiz/review.php?attempt=35719&cmid=308711 5/6 Question 7 Correct 1.00 points out of 1.00 Select the optimal layout for the primary tensile reinforcing for the cantilever retaining wall below. a. b.
11/30/23, 11:58 PM Assignment #12: Attempt review https://online.the-bac.edu/mod/quiz/review.php?attempt=35719&cmid=308711 6/6 c. d. Your answer is correct.
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