4.
Q： What ___________ last calling port ?A：I went to the shopping mall with my colleagues.
(A) are you going to do
(B) did you did
(C) have you do
(D) did you do
5. These are used where it is necessary to make a right-angle turn in a line, and are basically the
same in construction and application as globe valves. What equipment is above description?
(A) Check valve
(B) Gate valve
(C) Angle valve
(D) Globe valve
11. On modern engines the ___________ can be continuously taken by employing two transducers,
one pressure transducer in the combustion chamber and one crank angle pick up transducer on
the shaft.
(A) specific fuel oil consumption
(B) heat efficiency
(C) indicator diagram
(D) shaft power
21. __________ (COW) eliminates the use of water for tank cleaning and enables cargo residues to
be pumped ashore during discharge because cleaning is carried out simultaneously with the
discharge.
(A) Change Over Water
(B) Combat Operating Way
(C) Crude Oil Washing
(D) Centralised Operation Washing
23. When the piston reaches the top of its stroke, i.e. the _________ center (TDC), both the
pressure and the temperature of the air rise to very high values.
(A) Top Distance
(B) Time Delay
(C) Time Difference
(D) Top Dead
24. Second engineer told me that you are __________ with the No.1 HFO Purifier.
(A) having problems
(B) have problems
(C) has problems
(D) had problems
29. Which event in those seawater systems could be prevented by continuously injecting chemical
poisons？
(A) Scale formation
(B) Erosive damage
(C) Corrosion damage
(D) Marine growth
31. Which device can serve the purpose of preventing or controlling fluid leakage along a shaft
where it passes through a wall or diaphragm that separates regions with different pressures？
(A) Bearing
(B) Seal
(C) Frame
(D) Housing
39. The ignition delay associated with fuels of low ignition quality results in a late and more
explosive start to the combustion period, which results in higher peak pressures and consequent
rough and noisy operation. This means what？
(A) the ignition delay could increase the mean effective pressure of cycle
(B) the more explosive start to the combustion period due to ignition delay could generate the
higher peak pressure
(C) the ignition delay associated with fuels of low ignition quality is beneficial for engine
performance as it results in higher peak pressures
(D) the ignition delay associated with fuels of low ignition quality could alleviate the noise
generation
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