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← ScienceWhich phenomenon limits hydraulic actuator speed during cold operation?
A)Increased fluid viscous drag✓
B)Decreased pump cavitation margin
C)Elevated gas solubility rates
D)Reduced material tensile strength
💡 Explanation
Increased fluid viscosity slows actuator speed because viscous drag rises exponentially as temperature decreases. This increases the fluid's resistance to flow through the hydraulic system's narrow passages, therefore actuator motion slows considerably rather than other temperature-related effects.
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