A.a reduction
B.an increase
C.an outing
D.a downwards
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A.manoeuvring operations
B.bad combustion
C.cooling
D.mooring trial
A.viscosity
B.twisting moments
C.inertia
D.thermal expansion
A.bottom
B.middle
C.top
D.none of the above
A.higher
B.lower
C.the same
D.none of the above
A.the piston rods
B.the crank throws
C.the thrust bearings
D.the main bearings
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