engineering recuitment DRDO Technician A 2022 Mock Test Series (Tier I) Fitter Machining

What will happen if the spindle threads are worn out in a gate valve?

1
The valve gets hard to turn. 
2
There will be loud noise when the valve is turned.
3
Water flows around the stuffing box. 
4
Valve will not close/open when the spindle turns.
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