The static deflection is important in determining both the f

The static deflection is important in determining both the frequency and the amplitude of vibration. (B) An unbalanced rotating mass in a machine will cause unwanted vibrations. (C) Operating a machine close to its natural frequency causes beating to occur. (a) Both statements (A) and (C) are correct. (b) Statement (A) only is correct. (c) None of the statements is correct. (d) Statement (B) only is correct. (e) Statement (C) only is correct.

Solution

Here according to the given options the correct option to choose is d.

Since unbalanced masses always cause additional vibrations due to which component is subjected to extra stresses and also unwanted noise is produced.

The other two options are false.