Refrigeration and Air Conditioning Technology (MindTap Course List)
8th Edition
ISBN: 9781305578296
Author: John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher: Cengage Learning
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Textbook Question
Chapter 14, Problem 32RQ
True or False: A change in the differential setting will automatically change the cut-in point of the control.
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Chapter 14 Solutions
Refrigeration and Air Conditioning Technology (MindTap Course List)
Ch. 14 - Why is a low-voltage thermostat normally more...Ch. 14 - The three kinds of switching mechanism used in...Ch. 14 - Prob. 3RQCh. 14 - What does a cold anticipator do?Ch. 14 - Define system overshoot when dealing with...Ch. 14 - Prob. 6RQCh. 14 - Prob. 7RQCh. 14 - Describe the method a service technician should...Ch. 14 - Explain how microelectromc or electrontc...Ch. 14 - Prob. 10RQ
Ch. 14 - What component steps down the voltage to the...Ch. 14 - Low voltage is desirable for residential control...Ch. 14 - What is the maximum amperage usually encountered...Ch. 14 - Prob. 14RQCh. 14 - Prob. 15RQCh. 14 - What two types of switches are normally found in...Ch. 14 - Prob. 17RQCh. 14 - Prob. 18RQCh. 14 - Why is a line-voltage thermostat mounted on an...Ch. 14 - What is the principle of operation for most...Ch. 14 - Describe a method for speedmg up the cooling of an...Ch. 14 - Describe two methods for cooling an overheated...Ch. 14 - How can an electronic thermometer be used in a...Ch. 14 - A temperature-sensing device used in measuring...Ch. 14 - How does a thermocouple change with a temperature...Ch. 14 - True or False: Pressures below atmospheric...Ch. 14 - Name one function of the low-pressure control.Ch. 14 - Which is true of a high-pressure control? A. It...Ch. 14 - Name two types of water pressure control.Ch. 14 - Why should a safety control not be adjusted if it...Ch. 14 - Prob. 31RQCh. 14 - True or False: A change in the differential...Ch. 14 - True or False: A change in the differential of a...Ch. 14 - Prob. 34RQCh. 14 - Explain what is meant by the range of a...
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- True or False: A change in the differential of a control will always change the range of the control.arrow_forwardTrue or False: You can only use the REDO command immediately after using the UNDO command.arrow_forwardone way flow control valve is the type of valve which is used to control the speed of an actuator. Select one: O True O Falsearrow_forward
- Post processor is the link between CAM systems and CNC machines. True Falsearrow_forwardChoose the statements that best describe an on/off pressure control system. a. valve position is either fully on or fully off b. can cause rapid switching of valve positions c. maintains pressure between upper and lower limits d. valve position is between fully on or fully off e. maintains pressure at a specified setpoint f. uses a controller with tuning parametersarrow_forwardName one function of the low-pressure control.arrow_forward
- True or False? In a high-speed CAN system, a serial data bus is used to allow communication between the various control modules in a vehicle.arrow_forwardIn the following closed-loop control system, identify the dynamic system, the actuator, the controlled variable, the manipulated variable, and the control signal. Driver Temperature Reference Voltage Sensor Gas flow- Valve Ovenarrow_forwardFlash type ADC gives highest conversion rate. Select one: O True O False The close loop control system is also known as control system.arrow_forward
- True or False: A package sequencer can start or stop only one stage of strip heat.arrow_forwardWhat is the difference between an active and a passive sensor used in DDC control systems?arrow_forwardTechnician A says that a faulty radiator fan relay can cause an engine to overheat. Technician B says that bidirectional control is NOT used to test an electric cooling fan. Who is correct? Select one: a. Technician A only b. Technician B only c. Both A and B d. Neither A nor Barrow_forward
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