更多"Oil oxidation, as a result of exces"的相关试题:
[单项选择]Which harmful consequence may be the result of lube oil sludge accumulation? （）
A. Clogged oil pump suction screens
B. Increased oil operating temperatures
C. Sticking piston rings
D. All of the above
[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]High lube oil temperatures developing in a diesel engine can result from（）
A. high oil pressure
B. excessive bearing end play
C. plugged oil control rings
D. engine overload
[单项选择]Excessive lube oil consumption can result from worn or broken（）
A. piston rings
B. valve guides
C. valve seals
D. all of the above
[单项选择]A dirty lube oil strainer can result in（）
A. crankcase
B. low lube oil temperature
C. excessive oil consumption
D. low bearing oil pressure
[单项选择]Fuel oil having a low cetane rating could result in（）
A. improved cold weather starting
B. excessive fuel oil consumption
C. reduced ignition lag
D. smoother engine operation
[单项选择]A high rate of separation between oil and water is favored by （）.
A. large size of oil globule
B. low temperature
C. high viscosity
D. high flow rate
[单项选择]High exhaust back pressure will result in an increase in （）
A. turbocharger efficiency
B. engine power output
C. carbon deposits on fuel injectors
D. cylinder scavenging
[单项选择]The consistent burning of fuel oil with a high sulfur content in a diesel engine will result in （）
A. clogged fuel injection pumps
B. increased cylinder liner wear
C. intake valve stem corrosion
D. varnish deposit on pistons
[单项选择]If the analysis of used lube oil indicates a high content of iron particles, this could indicate（）
A. corrosive deterioration of a bearing
B. inadequate air filtration
C. excessive ring and liner wear
D. excessive cooling of lubricating oil
[单项选择]The construction of the main propulsion engine lube oil sump should （）
A. have no plating joints of 90
B. retain the lube oil as long as possible before it recirculates through the system
C. provided drain/return lines that are no greater than 24 inches from the pump suction
D. be provided with only a perfectly horizontal bottom
[单项选择]The following options are all the functions of lubricating oil except（）
A. removing heat and deposits
B. neutralizing acidic products
C. lubricating
D. improving combustion efficiency
[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]（）diesel engines generally have two systems of lubrication:（）a total loss system feeding and a circulating system lubricating the running gear and cooling the pistons.
A. Large crosshead type；crossheads
B. High speed；the cylinders
C. Large crosshead type；the cylinders
D. Four-stroke；pistons and cylinders
[单项选择]The term OIL as used in the Oil Pollution Regulations means（）.
A. fuel oil
B. sludge
C. oil refuse
D. All of the above
