1. A needle valve controls flow in:
- both directions.
- one direction.
- neither direction.
2. Pressure-compensated flow control valves maintain a constant flow:
- because they have a special needle valve.
- when pressure stays under 2000 psi.
- because they maintain a constant pressure drop across the orifice.
3. A 3-port flow control:
- can control different flows to several actuators at once.
- can only control one actuator at a time
- operates at maximum pressure for the whole cycle.
4. A 50-50 spool-type flow divider valve can:
- split flow in both directions.
- only split flow in one direction.
- is not used to split flow.
5. A priority flow divider’s priority outlet:
- changes flow as inlet flow changes.
- changes flow as inlet pressure changes.
- has constant flow when inlet flow is equal to or greater than its volume.
6. Pressure at the inlet of a spool-type flow divider is:
- equal to the lowest outlet pressure.
- equal to the highest outlet pressure.
- equal to the average of the sum of the outlet pressures.
7. Motor flow dividers use:
- hydraulic motors in series to split flow.
- hydraulic motors in parallel to split flow.
- flow control valves to split flow.
8. Pressure at the inlet of a motor flow divider is:
- equal to the lowest outlet pressure.
- equal to the highest outlet pressure.
- equal to the average of the sum of the outlet pressures.
9. This symbol is for a:
|
 |
10. This symbol is for a:
|
 |
