更多"If found oil when we open low oil l"的相关试题:
[单项选择]When separating fuel oil in oil separator, the separating quantity is（） of the real quantity.
A. 100%
B. 80%
C. 1/2
D. 1/3
[单项选择]A diesel engines crankcase oil level is found to be too high√ You should suspect that （）.
A. the engine was over filled
B. there might be a fuel leak
C. there might be a water leak
D. all of the above
[单项选择]When discharging an oil cargo，the first consideration is to（）.
A. get the bow up
B. discharge from the wings first
C. discharge from the centerline tanks first
D. discharge from amidships first
[单项选择]When separating lube oil separator, the optimal separating quantity is（）of the rated quantity on name plate.
A. 100%
B. 1/2
C. 1/5
D. 1/3
[单项选择]When fighting an oil or gasoline fire in the bilge，which of the following should NOT be used?（）
A. Foam
B. Solid stream water nozzle
C. All-purpose nozzle
D. Carbon dioxide
[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]When you notice oil on the water near your vessel while taking on fuel, you should FIRST （）.
A. stop loading
B. notify the senior deck officer
C. notify the terminal superintendent
D. determine whether your vessel is the source
[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]
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]Cylinder lubrication oil for low speed main propulsion diesel engines is admitted to each cylinder during （）.
A. the power stroke
B. the compression stroke
C. low load operation only
D. periods of standby
[单项选择]When fuel oil has seriously contaminated a diesel engine lubricating oil, you should （）.
A. filter to remove the fuel oil
B. use the settler to remove the fuel oil
C. remove the fuel oil by centrifuging
D. drain and then renew the lube oil supply
[单项选择]When adding oil to a refrigeration system, precautions must be taken to ensure that （）.
A. the compressor suction pressure is not too high
B. all air is purged from the pump and charging fittings
C. the high pressure cutout switch is held open to prevent accidental starting
D. the condenser is completely shutdown first
[单项选择]
When centrifuging heavy fuel oil, an important factor to consider is the （）
(1) flow rate
(2) viscosity of the fuel oil
A. (1) only is correct
B. (2) only is correct
C. both (1) and (2) are correct
D. neither (1) or (2) are correct
[单项选择]When separating the lube oil without additive, it is usually cleaned with hot water; the aim is to remove （） from it.
A. acid
B. sludge
C. mechanical impurity
D. salinity
[单项选择]When two oil separators are working in series, they should work with （）
A. both as clarifiers
B. first one as clarifiers, second one as purifier
C. both as purifiers
D. first one as purifier, second one as clarifier
[单项选择]When an oil fire has been extinguished, the surface of the oil should be kept covered with foam to prevent （）.
A. air from contacting the oil vapors
B. permitting re-ignition boiling of the heated oil
C. spontaneous combustion below the oil surface
D. toxic fumes from escaping to the surface
[单项选择]When we write, we must write as（）as we can.
A. careful
B. carefully
C. more careful
D. more carefully
[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]When oil is accidentally discharged into the water，what should you do after reporting the discharge（）.
A. Contain the oil and remove as much of it as possible from the water
B. Throw chemical agents on the water to disperse the oil
C. Throw sand on the water to sink the oil
D. Obtain your permit from the Corps of Engineers
