Lakshya Education MCQs

Question: The example of successfully constrained motion is a
Options:
A. Motion of an I.C. engine valve
B. Motion of the shaft between a footstep bearing
C. Piston reciprocating inside an engine cylinder
D. All of the above
Answer: Option D

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More Questions on This Topic :

Question 1. The main disadvantage of the sliding pair is that it is
  1.     Bulky
  2.     Wears rapidly
  3.     Difficult to manufacture
  4.     Both (A) and (B) above
Answer: Option D
Question 2. In a pantograph, all the pairs are
  1.     Turning pairs
  2.     Sliding pairs
  3.     Spherical pairs
  4.     Self-closed pairs
Answer: Option A
Question 3. The main disadvantage of the sliding pair is that it is
  1.     Bulky
  2.     Wears rapidly
  3.     Difficult to manufacture
  4.     Both (A) and (B) above
Answer: Option D
Question 4. A torsional system with discs of moment of inertia i₁ and i₂ as shown in the below figure, is gear driven such that the ratio of speed of shaft b to shaft a is 'g'. neglecting the inertia of gears, the equivalent inertia of disc on shaft b at the speed of shaft a is equal to
  1.     G.I₂
  2.     G².I₂
  3.     I₂/G
  4.     I₂/G²
Answer: Option B
Explanation :
Question 5. When one of the links of a kinematic chain is fixed, the chain is known as a
  1.     Structure
  2.     Mechanism
  3.     Inversion
  4.     Machine
Answer: Option B
Question 6. The example of successfully constrained motion is a
  1.     Motion of an I.C. engine valve
  2.     Motion of the shaft between a footstep bearing
  3.     Piston reciprocating inside an engine cylinder
  4.     All of the above
Answer: Option D

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