Diaphragms are made of materials resistant to the particular fluids being transported. Choose four materials which are often used to manufacture diaphragms
1. Rubber
2. Neoprene
3. Cotton
4. Stainless steel
5. Polyethelene,
6. Zinc
a) 1, 4, 5, 6
b) 2, 4, 5, 6
c) 1, 2, 3, 5
d) 1, 2, 4, 5
e) 1, 2, 4, 6
Answer: D
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3A2 Pan Global
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