. What is the purpose of thermostat number 2, IN7, in the mixing vat machine? A. This thermostat is used to monitor the temperature of the incoming fluids. B. This thermostat is used to prevent an over-temperature condition in the event thermostat one sticks open. C. This thermostat is used to turn off the mixing motor after the mixture reaches temperature. D. This thermostat is used to shut off the heater when the chemical mix reaches setpoint.  16.b. After replacing a faulty CPU module, what is the next action you should take? A. Check the power supply service voltage. B. Issue a RUN or START command. C. Reprogram the user memory with ladder logic. D. Reset the watchdog timer.

Refrigeration and Air Conditioning Technology (MindTap Course List)
8th Edition
ISBN:9781305578296
Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Chapter2: Matter And Energy
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Problem 15RQ: Why is information regarding the specific volume of gases important to the designer of...
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16.a. What is the purpose of thermostat number 2, IN7, in the mixing vat machine?
A. This thermostat is used to monitor the temperature of the incoming fluids.
B. This thermostat is used to prevent an over-temperature condition in the event thermostat one sticks open.
C. This thermostat is used to turn off the mixing motor after the mixture reaches temperature.
D. This thermostat is used to shut off the heater when the chemical mix reaches setpoint. 

16.b. After replacing a faulty CPU module, what is the next action you should take?
A. Check the power supply service voltage.
B. Issue a RUN or START command.
C. Reprogram the user memory with ladder logic.
D. Reset the watchdog timer.

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