Understanding Motor Controls
4th Edition
ISBN: 9781337798686
Author: Stephen L. Herman
Publisher: Delmar Cengage Learning
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Chapter 13, Problem 2RQ
To determine
The differential pressure of a pressure switch.
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Understanding Motor Controls
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- A pressure switch is to be installed on a system with pressures that can range from 1500 PSI to 1800 PSI. What type of pressure switch should be used?arrow_forwardTo answer the following questions refer to the circuit in Figure 416. The pressure switch is shown as: a. Normally open b. Normally closed c. Normally open held closed d. Normally closed held openarrow_forwardWhat is an SPST switch?arrow_forward
- The symbol shown is: Normally open pressure switch Normally open flow switch Normally open float switch Normally open temperature switcharrow_forwardWhat is the primary use of a limit switch?arrow_forwardTo answer the following questions refer to the circuit in Figure 416. What is the purpose of the rotary switch connected after the pressure switch?arrow_forward
- The symbol shown is: Normally closed float switch Normally open held closed float switch Normally open float switch Normally closed held open float switcharrow_forwardA pressure switch is to be installed in a circuit that requires it to have three normally open contacts and one normally closed contact. The switch actually has one normally open Contact What must be done to permit this pressure switch to operate in this circuit?arrow_forwardWhat is a normally dosed switch?arrow_forward
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