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READING QUIZ

READING QUIZ. Select the number of reactions created by a 3-D rigid body’s fixed support. A) 2 B) 3 C) 6 D) None of the above. READING QUIZ. If a 3-D rigid body has eight support reactions or unknowns acting on it, it has ___________ redundant reactions. A) two

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READING QUIZ

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  1. READING QUIZ Select the number of reactions created by a 3-D rigid body’s fixed support. A) 2 B) 3 C) 6 D) None of the above

  2. READING QUIZ If a 3-D rigid body has eight support reactions or unknowns acting on it, it has ___________ redundant reactions. A) two B) three C) five D) eight

  3. m m (C) (B) (A) m m (D) CONCEPT QUIZ A rectangular plate of mass m is to be held in equilibrium by cables. Select the configuration that creates a statically determinate design.

  4. Z P B A 2 a 3a Y C X CONCEPT QUIZ Three bars are welded together and supported by three frictionless eyebolts at A, B, and C. Each eyebolt generates two force reactions. In this case, BX equals ______ . A) AZ B) 3 CZ C) 2 AX D) P E) None of the above. a

  5. z D F C 3 m 4 m y 4 m B 3 m A x CONCEPT QUIZ A tripod has a force acting on it in the negative y direction. Select the false statement. A) FAD = FCD B) FCD is tensile C) FAD is compressive D) FBD is tensile

  6. Z X ATTENTION QUIZ A rectangular plate of mass m is held in equilibrium by vertical cable(s). Theoretically, what is the minimum number of cables required? A) 1 B) 2 C) 3 D) 4 E) 6 Y

  7. z A 3 ft 4.5 ft y C 6 ft F = 400 N 4.5 ft x B 6 ft ATTENTION QUIZ 7. The rod AB has a vertical force F acting on it and is supported by ball-and-sockets joints at A and B. Select the true statement. A) Reaction at B is 200 j lb B) Moment about the line AB is not zero. C) Problem is indeterminate. D) The 3 force reactions are redundant.

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