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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 8, Problem 3RQ
The ________is both the greatest asset and the greatest liability of an electronic leak detector.
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Chapter 8 Solutions
Refrigeration and Air Conditioning Technology (MindTap Course List)
Ch. 8 - The low-pressure side of the system must not be...Ch. 8 - Name and briefly describe the six classes of...Ch. 8 - The ________is both the greatest asset and the...Ch. 8 - Why should oxygen or compressed air never be used...Ch. 8 - List some of the foreign matter that may enter a...Ch. 8 - True or False: A vacuum pump can remove any type...Ch. 8 - Air in a refrigeration system causes which of the...Ch. 8 - The only two products that should be circulating...Ch. 8 - In order to remove moisture from a refrigeration...Ch. 8 - Are the best vacuum pumps one-stage or two-stage?
Ch. 8 - Name the two types of vacuum procedures used by...Ch. 8 - What can be done to get water out from under the...Ch. 8 - When evacuating a refrigeration system that has...Ch. 8 - What is today's most accurate type of deep vacuum...Ch. 8 - _________microns are in 1 inch.Ch. 8 - Briefly describe the method for cleaning up a...Ch. 8 - What is the advantage of using large gauge lines...Ch. 8 - Why is it important to change the oil on a vacuum...Ch. 8 - Describe the meaning of a deep vacuum, and explain...Ch. 8 - List the main advantages of a microfoam leak...Ch. 8 - What could an oily dust spot on a condenser or...Ch. 8 - Why should a condenser be covered with a sheet...Ch. 8 - Leaks that occur only when the unit is in...Ch. 8 - Briefly describe a combination-dependent leak.
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- Which type of detector is best suited for gauging aluminum thickness, and why? a. Geiger-Mueller Tube(s) b. Ion Chamber(s) c. Scintillation Detector(s) d. None of the abovearrow_forwardWhy should the probe of an electronic leak detector be placed below the area being checked?arrow_forwardBy monitoring the condition of the machine, preventive maintenance can not be performed to increase the operational life of a machine. Select one: True Falsearrow_forward
- Which of the following is a digital transducer? a. Strain gauge b. Thermistor c. LVDT d. Encoderarrow_forwardPresence detectors, thermostat and pressure plate are not examples of automated systems. Select one: True Falsearrow_forwardIn an hydraulic control system, the connecting linkage has areliability factor of 0.98. The pressure sensor that actuates thelinkage has a reliability factor of 0.92. The pressure sensor actuatesthe valve that has a reliability factor of 0.90. Assume that all the threeelements namely; the actuator, the linkage and the hydraulic valveare connected in series with independent reliability factors.- What is the reliability of the control system?arrow_forward
- Differential pressure flow sensors measure flow by measuring the pressure difference across a/an ___________. a. pipe b. restriction c. opening d. linearrow_forwardPROCESS INSTRUMENTATION AND CONTROL Explain with a neat sketch the principle of Ultrasonic flow meter.arrow_forwardFrom the following identify the true statement relating to the term Preventive maintenance The maintenance done after the failure of machine and can't save energy during the process. O The maintenance done before the failure of machine and can save energy during the process. O The maintenance done before the failure of machine and can't save energy during the process. The maintenance done after the failure of machine and can save energy during the process.arrow_forward
- Discuss .maintenance aspects of a typical industrial control valve.arrow_forwardIndustrial Pipes: Because it does not have a way to access the entire internal part of a pipe, this type of equipment is said to have no internal inspection, because it is not possible to inspect all regions within it, although inspections in places close to opening or disconnection points are possible?arrow_forwardWhich of the following set entirely comprises a measurement system? A. Thermometer, odometer, ultrasonic sensor C. Espresso machine, light sensor, accelerometer B. Dish washer, espresso machine, thermometer D. Calculator, accelerometer, temperature sensorarrow_forward
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