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 17RQ
The purpose of the electrodes of an oil burner is to
A. create a blue flame.
B. establish best efficiency.
C. put out the flame electronically.
D. ignite the fuel oil at start-up.
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Why the maximum discharge rate should not be exceeded?
a. Acetylene becomes unstable and could explode when compressed to high pressure
b. It may create a reaction between the flame produce and the amount gas being discharged.
c. It causes overheating on the welding
tip that will damage the work.
d. The working pressure will not stabilize and eventually produce a irregular flame.
What is missing below in order to satisfy the conditions necessary in order to cut when using an oxygen-fuel gas mixture? A fuel cylinder, oxygen cylinder, mixer chamber, welding torch and?
a. Flame arrestor
b. Nozzle tip
c. Control valves
d. Flame cutter
on the other hand, A visual check during electric welding includes?
a. Strength of joint
b. Cable inspections
c. Pressure setting
d. Slag inclusion
And, Since visual inspection is an examination of the eye, which of these statements describes its limitation?
a. It is also known as ductility test.
b. It can only detect or locate defects on weld surface.
c. It is usually inexpensive and no power needed.
d. Information on macro structural can be assessed.
Describe the characteristics of ideal fuel burning system in a furnace
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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- Excess air is used to ensure nearly complete combustion. true or falsearrow_forwardThe temperature at which oil will release sufficient vapor to support combustion continuously for five second when flame is passed over the surface is Burn point Flash point Pour point Cloud point Fire point Option 6arrow_forward2 A type of welding flows, which is the result of a perfect proportion and mixture of acetylene and oxygen and is used for fusion welding of steel and cast iron, is a. Neutral flame b. Oxidizing flame c. Carburizing flame d. Oxy-acetylene flamearrow_forward
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