更多"The lowest temperature at which fue"的相关试题:
[单项选择]（） is the temperature at which a liquid fuel gives off sufficient vapor to form an ignitable mixture near its surface.
A. Setting point
B. Dew point
C. Flash point
D. Lean point
[单项选择]The lowest temperature at which the vapor formed from a liquid ignites and continues to burn steadily in the presence of an ignition source is called the（）.
A. flash point
B. fire point
C. upper explosive limit
D. lower explosive limit
[单项选择]The lowest temperature at which a liquid gives off enough vapor to ignite in the presence of an ignition source is called its （）.
A. boiling point
B. flash point
C. viscosity point
D. toxic point
[单项选择]When considering the lowest fuel system operating temperature, （） are important.
A. specific gravity or relative density
B. open flash point and closed flash point values
C. higher calorific and lower calorific values
D. cloud point and pour point values
[单项选择]The temperature of the fuel oil received during bunkering operation is critical in determining the （）
A. expansion space to leave in a tank
B. flash point at which the fuel will burn
C. temperature to which the fuel must be heated
D. rate at which the fuel can be pumped during transfer operations
[单项选择]Increasing the temperature of a fuel will reduce its （）.
A. viscosity
B. pressure
C. resistance
D. setting point
[单项选择]Cylinder wall temperature, fuel oil supplier, and oil passage （）.
A. are interdependent
B. are not interdependent
C. have nothing to do with each other
D. are independent
[单项选择]In an internal combustion engine, which of the devices listed will force the compression rings to seal the compression gases in the space above the piston?（）
A. Used of bimetallic piston rings
B. Ring gap pre-tensioning
C. Thermal increase in ring-end clearance
D. Gas pressure acting against the back of the ring
[单项选择]As its temperature rises, the volume of fuel oil in the tanks will （）.
A. remain the same
B. increase
C. decrease
D. none of the above
[单项选择]The temperature at which the air is saturated with water vapor and below which condensation of water vapor will occur is referred to as the（）.
A. precipitation point
B. vapor point
C. dew point
D. absolute humidity
[单项选择]The temperature at which water vapor in the atmosphere begins to condense is called the （）.
A. dew point temperature
B. condensation temperature
C. psychometric temperature
D. absolute humidity temperature
[单项选择]When compared to air temperature,which factor is most useful in predicting fog?（）
A. Vapor pressure
B. Dew point
C. Barometric pressure
D. Absolute humidity
[单项选择]Maintaining the proper fuel oil temperature will result in （）
A. the elimination of valve wear
B. improved atomization
C. a decrease in cylinder blow-by
D. an increase in cylinder blow-by
[单项选择]The lowest temperature required to cause self-sustained combustion of a substance independent of any outside source of ignition is called （）.
A. explosive range
B. flash point
C. ignition temperature
D. combustion temperature
[单项选择]When the fuel oil is burning in the combustion chamber, it （）.
A. gives up large amount of heat
B. gives off large amount of heat
C. gives up large amount of steam
D. gives off large amount of steam
[单项选择]Which may ignite fuel vapors?（）
A. Static electricity
B. An open and running motor
C. Loose wiring
D. All of the above
[单项选择]Fuel is delivered into the combustion space by （）.
A. a cooling system
B. a lubricating system
C. an electric system
D. an injection system
