What factor is not primarily taken into account by a ship owner when choosing an engine ?
A
Cost
B
Propulsive efficiency
C
Size and weight
D
Maintenance work load
E
Installation time
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Which of the following types of valves is used in the bilge manifold ?In the simple mechanical governor, the:The valve which is always partially open when the evaporator is in operation is the:If a centrifugal pump is noisy with excessive vibration during its operation, the cause would most l...An emergency reversal ageration of the main to avoid collision