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 service system
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A.point of opening
B.speed of opening
C.lift from its seat
D.all of the above
A.Steel brush
B.Fine emery cloth or steel wool
C.A section of the removed compression ring
D.A case hardened scraper
A.improper adjustments
B.contaminated fuel
C.coated fuel lines
D.excessive vibration
A.during low loads
B.after proper oil viscosity is reached
C.during starting
D.after cleaning filters
A.adjusts the idle speed control
B.drain and flushes the governor and replace the oil
C.adjusts the compensating needle valve
最新試題
（）connectors hold best if a wire is accidentally pulled or a connection becomes loose.
Flame failure in an automatically fired auxiliary boiler can from a/an （）
The additional mark （）in the Classification Certificate for Machinery means propulsion apparatus is remotely controlled on the navigating bridge control station, and engine assembly control station is unmanned periodically.
The shipboard oil pollution emergency plan will be invalid after （）
The treatment of the fuel oils involves storage, heating, filtering and（）
Using a file without a handle may result in （）
To proceed to the assistance of a ship in distress is（）
“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a（）
Which of the following items don’t belong to dock repair works?（）
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）