Situation 6: Two steel springs arranged in series support a load P. The upper spring has 12 turns of 25 mm diameter wire on a mean radius of 100 mm. The lower spring consists of 10 turns of 20 mm diameter wire on a mean radius of 75 mm. Use G= 83 GPa 19. Which of the following most nearly gives the maximum value of P if the allowable shearing stress if 200 MPa? c. 4,305.16 N d. 5,774.99 N 20. Which of the following most nearly gives the value of the total elongation a. 4,833.33 N b. 3,926.99 N of the assembly? c. 172.86 mm d. 189.51 mm 21. Which of the following most nearly gives the equivalent spring constant of a. 212.76 mm b. 254.21 mm the assembly? a. 29.88 kN/m b. 25.61 kN/m c. 22.72 kN/m d. 20.15 kN/m
Situation 6: Two steel springs arranged in series support a load P. The upper spring has 12 turns of 25 mm diameter wire on a mean radius of 100 mm. The lower spring consists of 10 turns of 20 mm diameter wire on a mean radius of 75 mm. Use G= 83 GPa 19. Which of the following most nearly gives the maximum value of P if the allowable shearing stress if 200 MPa? c. 4,305.16 N d. 5,774.99 N 20. Which of the following most nearly gives the value of the total elongation a. 4,833.33 N b. 3,926.99 N of the assembly? c. 172.86 mm d. 189.51 mm 21. Which of the following most nearly gives the equivalent spring constant of a. 212.76 mm b. 254.21 mm the assembly? a. 29.88 kN/m b. 25.61 kN/m c. 22.72 kN/m d. 20.15 kN/m
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Situation 6: Two steel springs arranged in series support a load P. The upper
spring has 12 turns of 25 mm diameter wire on a mean radius of 100 mm. The lower
spring consists of 10 turns of 20 mm diameter wire on a mean radius of 75 mm.
Use G= 83 GPa
19. Which of the following most nearly gives the maximum value of P if the
allowable shearing stress if 200 MPa?
c. 4,305.16 N
d. 5,774.99 N
20. Which of the following most nearly gives the value of the total elongation
a. 4,833.33 N
b. 3,926.99 N
of the assembly?
c. 172.86 mm
d. 189.51 mm
21. Which of the following most nearly gives the equivalent spring constant of
a. 212.76 mm
b. 254.21 mm
the assembly?
a. 29.88 kN/m
b. 25.61 kN/m
c. 22.72 kN/m
d. 20.15 kN/m
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