海船船员考试
单选题A condition contributing to diesel engine piston rings sticking in the ring grooves, is insufficient ring clearance at the ring（）A gapB sideC backD radial
题目
gap
side
back
radial
相似问题和答案
第1题：
wide compression rings are used
oil rings are located above the piston
chromium plating is used on all piston rings
oil rings are located near the bottom of the piston skirt
第2题：
Ⅰ only
Ⅱ only
both Ⅰ and Ⅱ
neither Ⅰ nor Ⅱ
第3题：
Which of the following statements represents the function of the compression rings installed at the top of a diesel Engine piston?
A.Control the amount of lube oil burned in the combustion chamber
B.Transmit heat from the piston to the cylinder liner
C.Prevent damage to ring groove inserts by acting as a heat dam
D.Dissipate combustion chamber gas pressure by channeling it through the ring gap
第4题：
chromium plating piston rings
knurling the piston skirt
extended maximum power operation
applying load to a cold diesel engine
第5题：
low compression pressure
increased piston wear
increased cylinder lube oil consumption
poor contact between compression rings and liner
第6题：
starting the engine while hot
knurling the piston skirt
operating the engine overheated
scuff resistant piston rings
第7题：
Ⅰonly
Ⅱ only
both Ⅰ and Ⅱ
neither Ⅰ nor Ⅱ
第8题：
In a diesel engine, when refitting piston rings you should______. I. check the ring gap at the smallest diameter of the cylinder II. remove carbon from the ring groove
A.I only
B.II only
C.both I and II
D.neither I nor II
第9题：
excessive lube oil consumption
lower than normal lube oil temperature
higher than normal exhaust back pressure
excessive crankshaft end play
第10题：
residual carbon deposits
lube oil viscosity breakdown
uneven heat expansion of the rings
uneven heat expansion of the piston