Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← TechnologyWhich outcome occurs when a pneumatic directional valve experiences pilot pressure loss?
A)Valve spool shifts to default position✓
B)Increased actuator holding torque results
C)Flow rate through valve increases
D)Valve seals experience extreme temperatures
💡 Explanation
Pilot pressure loss causes the valve spool to shift to its default position due to spring force overcoming reduced pilot pressure; this is spring return mechanism, therefore the valve defaults, rather than increased torque or flow, because those rely on pressure.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Technology →- Which outcome occurs when de-icing fluid warms turbine blades during landing approach?
- Which effect reduces steering responsiveness when a vehicle's electronic stability control activates during cornering?
- Which consequence results when hydraulic fluids degrade within actuator control systems?
- Which consequence results when dispersion exceeds guard interval?
- Which risk increases in hydraulic systems that use accumulators when system pressure exceeds the accumulator's design limit?
- Which risk significantly increases when an internal combustion engine piston ring fails to maintain adequate oil film?
