Civil Engineering - UPSC Civil Service Exam Questions - Discussion
Discussion Forum : UPSC Civil Service Exam Questions - Section 18 (Q.No. 18)
18.
A plane pin-jointed truss is shown in the figure. The force resisted by the member AD is
Discussion:
2 comments Page 1 of 1.
Rahul verma said:
2 years ago
CF FE CD AC DE EB is zero force members
So,
Ra + Rb = 0
Taking moment about A.
Rb = 500
Ra = -500.
joint A
FADCOS45 - 500 = 0.
FAD = 500√2(tension).
So,
Ra + Rb = 0
Taking moment about A.
Rb = 500
Ra = -500.
joint A
FADCOS45 - 500 = 0.
FAD = 500√2(tension).
(3)
Priyanka said:
5 years ago
B is right
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