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[] (a) Open cup test [] (b) Calorimeter [] (c) Hydrometer [] (d) Viscometer [] (e) All of the Above [] (f) None of the Above
Question 2: The lowest temperature at which fuel oil gives off sufficient vapor to burn continuously when ignited is defined as the ....
[] (a) Burning temperature [] (b) Autoignition temperature [] (c) Flash point [] (d) Fire point [] (e) All of the Above [] (f) None of the Above
Question 3: The flash point of a residual fuel oil should be used to determine the highest temperature to which the oil may be heated ....
[] (a) For atomizing [] (b) For centrifuging [] (c) In a storage tank [] (d) In the recirculation line [] (e) All of the Above [] (f) None of the Above
Question 4: For use in boilers,the flash point of fuel oil may be exceeded when ....
[] (a) Necessary to transfer fuel [] (b) Firing under maximum load [] (c) Smokeless operation is desired [] (d) Required for proper atomization [] (e) All of the Above [] (f) None of the Above
Question 5: Which of the following determines the temperature to which fuel oil must be heated for proper atomization?
[] (a) Viscocity [] (b) Flash Point [] (c) Pour Point [] (d) Specific Gravity [] (e) All of the Above [] (f) None of the Above
Question 6: Modern fuel oil temperature control devices are regulated to obtain a certain viscocity rather than a specific fuel oil temperature because ....
[] (a) Residual fuel oils have the same viscocity characteristics regardless of where they are refined [] (b) The temperature of the fuel oil varies with the flow rate through the heater [] (c) The relashionship between temperature and viscocity varies with different fuels [] (d) Viscosity regulation eliminates the need for close control of fuel/air ratio [] (e) All of the Above [] (f) None of the Above
Question 7: The viscocity of a residual fuel oil is measured in saybolt ....
[] (a) Millimeters Universal [] (b) Milliliters Universal [] (c) Seconds Furol [] (d) Minutes Universal [] (e) All of the Above [] (f) None of the Above
Question 8: The ash content of a fuel oil is significant to the operating engineer because it ....
[] (a) Is an indication of the amount of noncombustible material present in the oil [] (b) Indicates the quantity of energy released by burning a unit amount of the fuel [] (c) Is useful for determining proper atomization temperatures [] (d) Reflects the overall thermal efficiency of the fuel oil sere system [] (e) All of the Above [] (f) None of the Above
Question 9: What is the harmful effect of sulfur in a fuel?
[] (a) It causes excessive smoking and soot at low firing rates. [] (b) It doesn't readily burn when combined with oxygen. [] (c) It clogs fuel oil strainers more often. [] (d) It forms a corrosive acid when mixed with water or water vapor. [] (e) All of the Above [] (f) None of the Above
Question 10: What constituent of fuel oil determines the specific heat?
[] (a) Hydrocarbons [] (b) Oxygen [] (c) Nitrogen [] (d) Suphur [] (e) All of the Above [] (f) None of the Above