A.stop valves
B.interlocks
C.non-return valves
D.air vents
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A.drain cocks
B.vent valves
C.counteracts
D.interlocks
A.the cooling water
B.the circulating water
C.the cooler
D.the cooling water space
A.the circulating tank
B.the scavenge box
C.the cooling water space
D.the cooler
A.shims
B.packing
C.glands
D.washers
The sequence of parts in a generally used fuel oil supply system for a main engine is （）
(1)tanks in the double bottom
(2)centrifuges
(3)service tank
(4)settling tank
(5)viscosity regulator
A.(1)-(2)-(4)-(3)-(5)
B.(1)-(4)-(2)-(3)-(5)
C.(1)-(3)-(2)-(4)-(5)
D.(1)-(5)-(4)-(2)-(3)
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Routine monitoring of a diesel engine should include （）.
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