A surveillance test procedure is being performed on a typical motor-operated valve (MOV) with a declutch lever that is used in an emergency core cooling system (ECCS) application.
The declutch lever has been operated and released, and the valve is being manually/locally opened by a technician.
The MOV breaker is closed as required by the surveillance test procedure.
During operation of the valve handwheel, an ECCS actuation signal is received that normally energizes the valve motor and closes the valve.
How will the valve be affected by the actuation signal?
A. The handwheel will disengage and the valve will automatically close.
B. The handwheel will disengage and the valve will remain in the current position.
C. The handwheel will remain engaged and the valve will automatically close.
D. The handwheel will remain engaged and the technician can continue to open the valve.
Show Answer
Answer: A
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