

MCQOPTIONS
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1. |
________VALVES_ARE_KNOWN_AS_‚ÄÖ√Ñ√∂‚ÀÖ√Ë‚ÀÖ‚À´WASHOUT_‚ÄÖ√Ñ√∂‚ÀÖ√Ë‚ÀÖŒÄ_VALVES.?$# |
A. | Drain valves |
B. | Scour valves |
C. | Check valves |
D. | Sluice valves |
Answer» B. Scour valves | |