Lakshya Education MCQs

Question: A body having moment of inertia o:m2 is rotating at 210 rpm and r with another body at rest having i 40 kg m2. the resultant speed after ing will be
Options:
A. 90 RPM
B. 100 RPM
C. 80 RPM
D. data are insufficient
Answer: Option A

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More Questions on This Topic :

Question 1. When the nature of contact between the elements of a pair is such that it can only slide relative to the other, the pair is known as a
  1.     Screw pair
  2.     Spherical pair
  3.     Turning pair
  4.     Sliding pair
Answer: Option D
Question 2. When the nature of contact between the elements of a pair is such that one element can turn about the other by screw threads, the pair is known as a
  1.     Screw pair
  2.     Spherical pair
  3.     Turning pair
  4.     Sliding pair
Answer: Option A
Question 3. In a pantograph, all the pairs are
  1.     Turning pairs
  2.     Sliding pairs
  3.     Spherical pairs
  4.     Self-closed pairs
Answer: Option A
Question 4. 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 5. The example of completely constrained motion is a
  1.     Motion of a piston in the cylinder of a steam engine
  2.     Motion of a square bar in a square hole
  3.     Motion of a shaft with collars at each end in a circular hole
  4.     All of the above
Answer: Option D
Question 6. A body having moment of inertia o:m2 is rotating at 210 rpm and r with another body at rest having i 40 kg m2. the resultant speed after ing will be
  1.     90 RPM
  2.     100 RPM
  3.     80 RPM
  4.     data are insufficient
Answer: Option A

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