1. Any industrial application that has a pressure-sensing requirement can use a pressure switch.
a. True
b. False
2. A limited variety of pressure switches are available for control requirements of pneumatic or hydraulic machines.
a. True
b. False
3. A diaphragm-actuated switch can be used when a sensitive response is required to small pressure changes at high-
pressure ranges.
a. True
b. False
4. The most commonly used pressure switches are single-pole switches.
a. True
b. False
5. Pressure regulators provide accurate control of pressure or vacuum conditions for systems.
a. True
b. False
Name: Class: Date:
Unit 10 Pressure Switches and Regulators
6. Pressure regulators consist of a(n) ____-type pressure gauge and a control relay.
a. mercury b. Bourdon
c. water d. air
7. A metal bellows-actuated control is used for pressures up to ____ pounds per square inch (psi).
a. 40 b. 100
c. 2000 d. 4000
8. Special ____ regulators will close the circuit at high pressure and open the circuit at low pressure.
a. pilot b. delicate
c. reverse-action d. reverse-operation
9. A normally open pressure switch control relay (PSCR) contact will close and ____ to indicate a high-pressure
condition.
a. turn on a pilot light b. raise a warning flag
c. turn on a buzzer d. send a message
10. The pressure switch controlling the action of a control relay is a very common practice in ____ control systems.
a. home b. public
c. industrial d. small
Name: Class: Date:
Unit 10 Pressure Switches and Regulators