A.injection pump plungers stuck or worn
B.low compression
C.solenoid stuck open
D.fuel tank too full
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A.facilitate bi-directional operation
B.provide the greatest pump efficiency
C.prevent pump clogging from marine growth
D.prevent cavitation at the pump outlet
A.raw water pump discharge
B.expansion tank outlet
C.cooling water heat exchanger
D.outlet engine jacket water outlet
In a diesel engine, a cylinder liner should be replaced if it is （）
Ⅰ.Scuffed
Ⅱ.Scored
A.Ⅰ only is correct
B.Ⅱ only is correct
C.both Ⅰ and Ⅱ are correct
D.neither Ⅰ or Ⅱ are correct
A.metal particles loosened by wear
B.air when air cleaners are not used
C.condensation of water vapors
D.breakdown of the lubricating oil by dilution
A.reduce wear on the valve stem
B.permit the use of alloy valve seat materials
C.reduce heat transfer from the valve seat
D.facilitate valve removal for servicing
最新試題
To proceed to the assistance of a ship in distress is（）
Which one is NOT the ‘clear grounds’ for a more detailed inspection?（）
A purge recovery system is used in a centrifugal air conditioning or refrigeration system to （）
Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the（）
Which of the following items don’t belong to dock repair works?（）
As soon as a diesel engine has started, which of the listed engine operating parameters should be checked FIRST?（）
“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a（）
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 ISPS Code consists of a mandatory section-Part A, which shows（）
If separating effect is not good, which measure should be taken （）