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 32, Problem 28RQ
A one-pipe system may be used when the oil tank is higher or lower than the oil pump. True or false.
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Students have asked these similar questions
For a hydraulic power unit, this part protects the pump from taking in any harmful particles that may be in the reservoir
a. liquid level gauge
b. filler/breather
c. pressure gauge
d. suction strainer
1-While refilling an 8-quart (7.57 L) system with coolant: Technician A initially puts in 4 quarts (3.78 L) of straight coolant and tops it off with water. Technician B fills the system with the correct mixture, tightens the radiator cap, and then checks for leaks. Who is correct?
2-While checking for conditions that might cause coolant electrolysis: Technician A places the positive lead of a voltmeter into the coolant and connects the negative lead to a ground. Technician B checks for the presence of voltage in the coolant with the ignition off. Who is correct?
3-Technician A says that if the PCV valve or connecting hoses become clogged, excessive pressure will develop in the crankcase and can cause oil leaks. Technician B says that if the PCV valve or connecting hoses become clogged, oil may be pushed into the air cleaner or cause it to be drawn into the intake manifold. Who is correct?
4-While bleeding air from a cooling system: Technician A loosens a heater hose at its highest…
Oil exposed to the atmosphere results in oxygen being absorbed into the oil is known as oiliness and it leads to blocking the circulating pipe.
Select one: True
False
Chapter 32 Solutions
Refrigeration and Air Conditioning Technology (MindTap Course List)
Ch. 32 - How many grades of fuel oil are normally...Ch. 32 - What two elements make up fuel oil?Ch. 32 - The most common fuel oil used for residential and...Ch. 32 - As the temperature of an oil sample decreases, A....Ch. 32 - If oil is to be stored at temperatures lower than...Ch. 32 - Prob. 6RQCh. 32 - If it is expected that an oil-fired appliance will...Ch. 32 - How many pounds of oxygen are required to burn 1...Ch. 32 - Explain the concept of excess air when it is used...Ch. 32 - Before fuel oil can be burned, it must be A....
Ch. 32 - What products of combustion are produced with...Ch. 32 - When incomplete combustion occurs, what additional...Ch. 32 - The minimum nozzle pressure for residential and...Ch. 32 - Prob. 14RQCh. 32 - Describe the three functions of the oil burner...Ch. 32 - Describe three common spray patterns for an oil...Ch. 32 - The purpose of the electrodes of an oil burner is...Ch. 32 - Prob. 18RQCh. 32 - Prob. 19RQCh. 32 - List the advantages a solid-state igniter has over...Ch. 32 - Which of the following is the typical output...Ch. 32 - Prob. 22RQCh. 32 - Prob. 23RQCh. 32 - Prob. 24RQCh. 32 - Explain the difference between the hot contacts...Ch. 32 - The purpose of the cad cell in an oil burner...Ch. 32 - Explain why it is important to keep the cad cell...Ch. 32 - A one-pipe system may be used when the oil tank is...Ch. 32 - Prob. 29RQCh. 32 - Prob. 30RQCh. 32 - The oil flame must not hit the combustion chamber...Ch. 32 - Describe the purpose of the heat exchanger.Ch. 32 - When servicing an oil burner, a service technician...Ch. 32 - Describe the function of the flame-retention ring...
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- Describe the three functions of the oil burner nozzle.arrow_forwardWhen condenser tubes become fouled, they may be cleaned by A. using a steel brush. B. using a brass brush. C. using a chisel and hammer. D. running a mixture of sand and water through them.arrow_forwardTrue or False? Oil pressure is determined by whether the pump is a gear type or rotor type and by oil clearances, the pumps pressure regulator valve, and oil viscosity.arrow_forward
- If a condenser circuit breaker is tripped, you should A. reset it. B. check the suction pressure. C. check the high-side pressure. D. perform a resistance check of the compressor section.arrow_forwardWhat causes coolant to leak from the water pump weep hole? Select one: a. A faulty thermostat b. A faulty radiator cap C. A faulty bypass hose d. A faulty pump shaft sealarrow_forwardWhich one of the following is a component of a centrifugal compressor? a. Suction valve b. Nozzle Impellor d. Cylinderarrow_forward
- 2. How does fluid flow to the reservoir when the directional control valve is in the center position? dings between Gauge 2 and Gauge 3arrow_forwardChoose the correct answer The suction pressure of a refrigerant should be as low as possible The suction pressure of a refrigerant should be as high as possible The suction pressure of a refrigerant should be as constant as possible None of the above Oarrow_forwardThe centrifugal compressor is used for refrigerants that require short displacement and high condensing pressure. True Falsearrow_forward
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