Which of the following statements is/are false for pneumatic isolators ?1. Pneumatic isolators are used when driving frequencies below 10 Hz are present2. Nausea is caused due to noise at low frequencies 3. At high natural frequencies, isolators can obtain efficiency of 90%4. Pneumatic isolators have limited load carrying capacity

All the above statements are false

Which of the following statements is/are false for pneumatic isolators

1.	Which of the following statements is/are false for pneumatic isolators ?1. Pneumatic isolators are used when driving frequencies below 10 Hz are present2. Nausea is caused due to noise at low frequencies 3. At high natural frequencies, isolators can obtain efficiency of 90%4. Pneumatic isolators have limited load carrying capacity
A.	Only statement 1
B.	Only statement 3
C.	Only statement 2, 4
D.	All the above statements are false
Answer» C. Only statement 2, 4

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