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Wednesday, 01 April 2026
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The diagram above shows a lift pump with valves at P and Q. During a downward stroke of ...
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Jamb 1999
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The diagram above shows a lift pump with valves at P and Q. During a downward stroke of the piston
SchoolNGR Classroom
Take Free Practice Test On 2026 JAMB UTME, Post UTME, WAEC SSCE, GCE, NECO SSCE
A
Both valves are open
B
P is open while Q is closed
C
P is closed while Q is open
D
Both valves are closed
Show Answer
Show Explanation
Correct Answer:
Option B
Explanation:
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