2. An alarm circuit is needed to indicate that either the temperature or the pressure in a batch process is too high. If either of the conditions is true, a microswitch closes to ground, as shown in Figure 4-11. The required output for an LED is a LOW signal when the alarm condition is true. George thinks that an OR gate is needed, but Betty argues that an AND gate is needed. Who is right and why? FIGURE 4-11 F 1.0 ΚΩ Temp, switch +5.0 V 1.0 Kn Logic gate Pressure switch +5.0 V 330 Ω Alarm

2. An alarm circuit is needed to indicate that either the temperature or the pressure in a batch process is too high. If either of the conditions is true, a microswitch closes to ground, as shown in Figure 4-11. The required output for an LED is a LOW signal when the alarm condition is true. George thinks that an OR gate is needed, but Betty argues that an AND gate is needed. Who is right and why? FIGURE 4-11 F 1.0 ΚΩ Temp, switch +5.0 V 1.0 Kn Logic gate Pressure switch +5.0 V 330 Ω Alarm

Electric Motor Control

10th Edition

ISBN:9781133702818

Author:Herman

Publisher:Herman

Chapter32: Two-speed, One-winding (consequent Pole) Motor Controllers

Section: Chapter Questions

Problem 6SQ: Describe the operation of Figure 325 (B) by adding jumper wire A to the original circuit.

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