更多"The viscosity of an oil is a measur"的相关试题:
[单项选择]Cylinder oil is a high viscosity mineral oil, with a （） machined to the anticipated sulfur content of the fuel.
A. TAN
B. TBN
C. SAN
D. SBN
[单项选择]The degree to which the viscosity of an oil will change with a change in temperature is indicated by the （）.
A. weight designation
B. viscosity index
C. pour point
D. thermal change value
[单项选择]The viscosity regulator controls the fuel oil temperature （） provide oil at the correct viscosity for combustion.
A. in order that
B. because of
C. in order to
D. owing to
[单项选择]Lubricating oil viscosity in an operating diesel engine can be reduced by（）
A. increasing cooling water flow
B. increasing lube oil flow
C. dilution by fuel oil
D. adding SAE 70 oil
[单项选择]Obviously, for a given fuel oil, its pour point is （） its cloud point.
A. lower than
B. higher than
C. as same as
D. better than
[单项选择]The （） of an oil refers to its ability to mix with water and then release the water in a centrifuge.
A. oxidation resistance
B. carbon-forming tendency
C. demulsibility
D. acidity
[单项选择]Lube oil cannot be efficiently filtered if its （）.
A. viscosity is too low
B. temperature is too low
C. pump discharge pressure is higher than the systems pressure
D. pump capacity is greater than the systems needs
[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]If the viscosity of the liquid being transferred remains constant as the discharge pressure increases, the rotary pump （）.
A. capacity will increase
B. capacity will decrease
C. suction pressure will increase
D. suction pressure will decrease
[单项选择]A viscosity regulator used for an engine is usually provided in order to （） for an engine burning heavy fuel oil.
A. regulate the fuel supply
B. maintain a constant fuel viscosity at the fuel valves
C. maintain efficient cooling
D. alter the fuel density
[单项选择]To assist separation of low viscosity oils steam coils or electric heaters are fitted （） of the oily water separator.
A. in entrance
B. in exit
C. in the upper part
D. on the outside
[单项选择]When discharging oil from an oil tanker the instantaneous rate（）60 liters per nautical mile.
A. Should not exceed
B. Must be up to
C. Should exceed
D. Should be about
[单项选择]Unless such oil tanker carries crude oil which is not suitable for crude oil washing，the oil tanker shall（）the system in accordance with the requirements of that Regulation.
A. operate
B. check
C. install
D. overhaul
[单项选择]Machinery driving fuel oil transfer and fuel oil service pumps must be fitted with a remote means of stopping the machinery from （）.
A. within the space concerned
B. outside the space concerned
C. the throttle station
D. within the fire room
[单项选择]
When fuel oil is accidentally missed with lube oil which of the following processes can be used to separate them?（）
Ⅰ.filtering
Ⅱ.settling
A. Ⅰ only
B. Ⅱ only
C. either Ⅰ or Ⅱ
D. neither Ⅰ or Ⅱ
[单项选择]The oil discharge monitoring system in the oil tanker vessels is used for detecting the amount of oil discharged overboard to ensure that it does not exceed（）
A. 15 liters nautical mile
B. 30 liters nautical mile
C. 60 liters nautical mile
D. 100 liters nautical mile
[单项选择]The viscosity regulator controls the （） of the fuel oil in order to provide the oil at the correct viscosity for combustion.
A. temperature
B. pumping rate
C. pressure
D. heat
[单项选择]The viscosity regulator controls （） in order to provide oil at the correct viscosity for combustion.
A. the engines speed
B. the engines load
C. the fuel oil temperature
D. the fuel oil flow
