Question :
" Consider the following statements for the pneumatic and hydraulic systems:
1. The normal operating pressure of pneumatic control is very much higher than that of hydraulic control.
2. In, pneumatic control external leakage is permissible to a certain extent, but there should no leakage in a hydraulic control.
Which of the statements given above is/are correct?"
1. " 1 only"
2. " 2 only"
3. " Both 1 and 2"
4. " Neither 1 and 2"
Answer :
3 - " Both 1 and 2"
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