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← ScienceWhich instability arises when high viscosity hydraulic fluid is used inside a narrow actuator?
A)Reduced actuator bandwidth is observed✓
B)Increased bulk modulus is reported
C)Fluid compressibility significantly decreases
D)System response has lowered efficiency
💡 Explanation
The narrower the actuator, the greater the importance of viscous damping affecting the bulk movement; the mechanism limits actuator speed because the viscous forces are increased. Therefore, bandwidth is reduced, rather than compressibility changes because viscosity effects dominate the inertial influences.
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