πŸ“Š Dynamics of Machines
Q. Inertia torque acts in the same direction as the accelerating couple?
  • (A) true
  • (B) false
  • (C) ---
  • (D) ---
πŸ’¬ Discuss
βœ… Correct Answer: (B) false
πŸ“Š Dynamics of Machines
Q. If a force has a line of action at a distance h from the centre of gravity, then the value of h is given by
  • (A) i. α/f
  • (B) i. α/m.g
  • (C) i/m.k
  • (D) m.k/i
πŸ’¬ Discuss
βœ… Correct Answer: (A) i. α/f
πŸ“Š Dynamics of Machines
Q. 2 D ALEMBERT'S PRINCIPLE - DYNAMIC ANALYSIS IN RECIPROCATING ENGINES
  • (A) reversed effective force
  • (B) net force
  • (C) coriolis force
  • (D) resultant force
πŸ’¬ Discuss
βœ… Correct Answer: (A) reversed effective force
πŸ“Š Dynamics of Machines
Q. Why the inertia torque acts in the opposite direction to the accelerating couple?
  • (A) bring the body in equilibrium
  • (B) to reduce the accelerating torque
  • (C) acts as a constraint torque
  • (D) increase the linear acceleration
πŸ’¬ Discuss
βœ… Correct Answer: (A) bring the body in equilibrium
πŸ“Š Dynamics of Machines
Q. A body remains in equilibrium if
  • (A) inertia force is applied in the same direction to the resultant force
  • (B) inertia force is applied in the direction opposite to the resultant force
  • (C) inertia force is applied in the direction perpendicular to the resultant force
  • (D) inertia force is applied in the direction parallel to the resultant force
πŸ’¬ Discuss
βœ… Correct Answer: (B) inertia force is applied in the direction opposite to the resultant force
πŸ“Š Dynamics of Machines
Q. In the following picture the G is the center of gravity, the quantity h is known as the “offset”. I is the moment of inertia and k is the radius of gyration. Offset’s value is given by?
  • (A) i.α/f
  • (B) i.α/m.g
  • (C) i/m.k
  • (D) m.k/i
πŸ’¬ Discuss
βœ… Correct Answer: (A) i.α/f
πŸ“Š Dynamics of Machines
Q. Considering a four bar chain with each link having linear and angular acceleration, applying D-Alembert’s principle will never result in which of the following member?
  • (A) 2- force member
  • (B) 3- force member
  • (C) 4 – force member
  • (D) non accelerating member
πŸ’¬ Discuss
βœ… Correct Answer: (A) 2- force member
πŸ“Š Dynamics of Machines
Q. The net force acting on the crosshead pin is known as
  • (A) crank pin effort
  • (B) crank effort
  • (C) piston effort
  • (D) shaft effort
πŸ’¬ Discuss
βœ… Correct Answer: (C) piston effort

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