Steam condenser tubes are made of ad-mirability brass, in which percen – McqOptions

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1.	Steam condenser tubes are made of ad-mirability brass, in which percentage of zinc & copper are __________ respectively.
A.	70 & 30
B.	30 & 70
C.	50 & 50
D.	90 & 10
Answer» B. 30 & 70

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