Quiz on Chapter 9: Relief and Unloading Pressure Controls

Jan. 21, 2007
1. Components in a fixed-volume pump circuit are protected from excess pressure by a : . . relief valve. counterbalance valve. reducing valve. 2. Direct acting relief valves have ___________ response time than a pilot-operated relief valve. ...

1. Components in a fixed-volume pump circuit are protected from excess pressure by a : . .

  1. relief valve.
  2. counterbalance valve.
  3. reducing valve.

2. Direct acting relief valves have ___________ response time than a pilot-operated relief valve.

  1. slower
  2. the same
  3. faster

3. Pilot-operated relief valves have ___________ pressure override as a direct-acting relief valve.

  1. more
  2. less
  3. the same

4. Solenoid-operated relief valves can be made from:

  1. direct acting relief valves.
  2. pilot operated relief valves.
  3. either type relief valve.

5. A vent port is found on:

  1. pilot-operated relief valves.
  2. direct-acting relief valves.
  3. either type relief valve.

6. Solenoidoperated relief valves can be used:

  1. on the case drain of a pump.
  2. on the tank line of a pump.
  3. to unload the pressure port of a pump.

7. Unloading valves are commonly found in:

  1. pressure-compensated pump circuits.
  2. hydraulic motor circuits.
  3. hi-lo pump circuits.

8. An unloading valve is set for higher pressure than the relief valve in a hi-lo pump circuit.

  1. True
  2. False

9. Unloading valves are different from relief valves because they:

  1. are externally piloted.
  2. do not control pressure.
  3. Are normally open.

10. Using a hi-lo pump circuit:

  1. requires less horsepower.
  2. requires more horsepower.
  3. requires about the same horsepower.

Continue Reading

Quiz on Chapter 10: Directional Control Valves

Feb. 10, 2007
1. A check valve is a/an: directional control valve counterbalance valve reducing valve 2. Pilot-operated check valves have ___________flow in one direction. increased controlled...

Understanding Pressure-Control Valves

June 14, 2019
The most common valves for controlling pressure include relief, reducing, sequence, counterbalance, and unloading valves.

Sponsored Recommendations

MONITORING RELAYS — TYPES AND APPLICATIONS

May 15, 2024
Production equipment is expensive and needs to be protected against input abnormalities such as voltage, current, frequency, and phase to stay online and in operation for the ...

All-In-One DC-UPS Power Solutions

March 13, 2024
Introducing the All-In-One DC-UPS, a versatile solution combining multiple functionalities in a single device. Serving as a power supply, battery charger, battery care module,...

Motor Disconnect Switches

March 13, 2024
With experienced Product Engineers and Customer Service personnel, Altech provides solutions to your most pressing application challenges. All with one thought in mind - to ensure...

DC Power Solutions: Streamlined Power Supplies for Every Need

March 13, 2024
CBI All In One UPS Power Solutions combine the requirements for several applications in just one device which can be used as power supply unit, battery charger, battery care module...