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UPSC Civil Service Exam Questions - Engineering

Q1:

Service connection consists of

A ferrule, stopcock and gooseneck

B ferrule, check valve and gooseneck

C stopcock, meter and sluice valve

D sluice valve, check valve and meter

ANS:A - ferrule, stopcock and gooseneck

Here it is asking the components and not the sequence. So, Option A is the correct answer.