GATE ME 2020 Set 2 — Question 30
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Engineering Mechanics → Statics → Free-Body Diagrams & Equilibrium
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Question
A bent beam of negligible mass lies in a vertical plane. Its horizontal part starts at the hinge support P and runs to the right; at its right end the beam turns vertically upward and rises to the point Q. At Q the beam rests against a roller support on a vertical wall, so the reaction at Q is horizontal. A downward point load of is applied at point R on the horizontal part, from P.The magnitude of the reaction force at support Q is __________ N.
Correct answer
1500 to 1500
Solution
The roller at Q bears against a vertical wall, so its reaction is horizontal; its line of action is above P. The hinge reactions at P produce no moment about P.Taking moments about P:Answer: 1500 N
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