Mechanical Engineering Exam  >  Mechanical Engineering Questions  >  Consider the following statements for complet... Start Learning for Free
Consider the following statements for completely balancing a single rotating mass:        
1. Another rotating mass placed diametrically opposite in the same plane balances the unbalanced mass.
2. Another rotating mass placed diametrically opposite in a parallel plane balances the unbalanced mass.
3. Two masses placed in two different parallel planes balance the unbalanced mass.
Which of the above statements is/are correct?  
  • a)
    1 only
  • b)
    1 and 2
  • c)
    2 and 3
  • d)
    1 and 3
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
Consider the following statements for completely balancing a single ro...
Statement 1: Another rotating mass placed diametrically opposite in the same plane balances the unbalanced mass.

This statement is correct. When a rotating mass is unbalanced, it creates a centrifugal force that causes vibration and affects the stability of the rotating system. By placing another rotating mass diametrically opposite in the same plane, the centrifugal forces of the two masses cancel each other out. This effectively balances the unbalanced mass and reduces the vibration.

Statement 2: Another rotating mass placed diametrically opposite in a parallel plane balances the unbalanced mass.

This statement is incorrect. When a rotating mass is unbalanced, it generates an unbalanced moment. Placing another rotating mass diametrically opposite in a parallel plane does not directly balance the unbalanced moment. The unbalanced moment can only be balanced by placing a mass at a specific distance and angle from the unbalanced mass, known as the balancing plane.

Statement 3: Two masses placed in two different parallel planes balance the unbalanced mass.

This statement is correct. To completely balance a single rotating mass, two balancing masses are required. These balancing masses should be placed in two different parallel planes, each at a specific distance and angle from the unbalanced mass. By properly positioning the balancing masses, the unbalanced mass can be balanced, and the vibration minimized.

Conclusion: From the given statements, statement 1 and statement 3 are correct. Placing another rotating mass diametrically opposite in the same plane (statement 1) and placing two masses in two different parallel planes (statement 3) can effectively balance a single rotating mass and reduce vibration. Therefore, the correct answer is option 'D' - 1 and 3.
Attention Mechanical Engineering Students!
To make sure you are not studying endlessly, EduRev has designed Mechanical Engineering study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Mechanical Engineering.
Explore Courses for Mechanical Engineering exam

Similar Mechanical Engineering Doubts

Top Courses for Mechanical Engineering

Consider the following statements for completely balancing a single rotating mass: 1. Another rotating mass placed diametrically opposite in the same plane balances the unbalanced mass.2. Another rotating mass placed diametrically opposite in a parallel plane balances the unbalanced mass.3. Two masses placed in two different parallel planes balance the unbalanced mass.Which of the above statements is/are correct?a)1 onlyb)1 and 2c)2 and 3d)1 and 3Correct answer is option 'D'. Can you explain this answer?
Question Description
Consider the following statements for completely balancing a single rotating mass: 1. Another rotating mass placed diametrically opposite in the same plane balances the unbalanced mass.2. Another rotating mass placed diametrically opposite in a parallel plane balances the unbalanced mass.3. Two masses placed in two different parallel planes balance the unbalanced mass.Which of the above statements is/are correct?a)1 onlyb)1 and 2c)2 and 3d)1 and 3Correct answer is option 'D'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about Consider the following statements for completely balancing a single rotating mass: 1. Another rotating mass placed diametrically opposite in the same plane balances the unbalanced mass.2. Another rotating mass placed diametrically opposite in a parallel plane balances the unbalanced mass.3. Two masses placed in two different parallel planes balance the unbalanced mass.Which of the above statements is/are correct?a)1 onlyb)1 and 2c)2 and 3d)1 and 3Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements for completely balancing a single rotating mass: 1. Another rotating mass placed diametrically opposite in the same plane balances the unbalanced mass.2. Another rotating mass placed diametrically opposite in a parallel plane balances the unbalanced mass.3. Two masses placed in two different parallel planes balance the unbalanced mass.Which of the above statements is/are correct?a)1 onlyb)1 and 2c)2 and 3d)1 and 3Correct answer is option 'D'. Can you explain this answer?.
Solutions for Consider the following statements for completely balancing a single rotating mass: 1. Another rotating mass placed diametrically opposite in the same plane balances the unbalanced mass.2. Another rotating mass placed diametrically opposite in a parallel plane balances the unbalanced mass.3. Two masses placed in two different parallel planes balance the unbalanced mass.Which of the above statements is/are correct?a)1 onlyb)1 and 2c)2 and 3d)1 and 3Correct answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Mechanical Engineering. Download more important topics, notes, lectures and mock test series for Mechanical Engineering Exam by signing up for free.
Here you can find the meaning of Consider the following statements for completely balancing a single rotating mass: 1. Another rotating mass placed diametrically opposite in the same plane balances the unbalanced mass.2. Another rotating mass placed diametrically opposite in a parallel plane balances the unbalanced mass.3. Two masses placed in two different parallel planes balance the unbalanced mass.Which of the above statements is/are correct?a)1 onlyb)1 and 2c)2 and 3d)1 and 3Correct answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of Consider the following statements for completely balancing a single rotating mass: 1. Another rotating mass placed diametrically opposite in the same plane balances the unbalanced mass.2. Another rotating mass placed diametrically opposite in a parallel plane balances the unbalanced mass.3. Two masses placed in two different parallel planes balance the unbalanced mass.Which of the above statements is/are correct?a)1 onlyb)1 and 2c)2 and 3d)1 and 3Correct answer is option 'D'. Can you explain this answer?, a detailed solution for Consider the following statements for completely balancing a single rotating mass: 1. Another rotating mass placed diametrically opposite in the same plane balances the unbalanced mass.2. Another rotating mass placed diametrically opposite in a parallel plane balances the unbalanced mass.3. Two masses placed in two different parallel planes balance the unbalanced mass.Which of the above statements is/are correct?a)1 onlyb)1 and 2c)2 and 3d)1 and 3Correct answer is option 'D'. Can you explain this answer? has been provided alongside types of Consider the following statements for completely balancing a single rotating mass: 1. Another rotating mass placed diametrically opposite in the same plane balances the unbalanced mass.2. Another rotating mass placed diametrically opposite in a parallel plane balances the unbalanced mass.3. Two masses placed in two different parallel planes balance the unbalanced mass.Which of the above statements is/are correct?a)1 onlyb)1 and 2c)2 and 3d)1 and 3Correct answer is option 'D'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice Consider the following statements for completely balancing a single rotating mass: 1. Another rotating mass placed diametrically opposite in the same plane balances the unbalanced mass.2. Another rotating mass placed diametrically opposite in a parallel plane balances the unbalanced mass.3. Two masses placed in two different parallel planes balance the unbalanced mass.Which of the above statements is/are correct?a)1 onlyb)1 and 2c)2 and 3d)1 and 3Correct answer is option 'D'. Can you explain this answer? tests, examples and also practice Mechanical Engineering tests.
Explore Courses for Mechanical Engineering exam

Top Courses for Mechanical Engineering

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev