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裂缝（crack；fissure）
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更多 “裂缝（crack；fissure）” 相关考题
考题
The drivers were killed in a head－on ( ) involving a number of cars on the main road into town.
A. crashB. collisionC. clashD. crack
考题
A crack in a cylinder liner can be caused byA.worn piston ringsB.installation of undersized sealing ringsC.operating the engine at low loadsD.restricted cooling water passages
考题
A crack in the deck plating of a vessel may be temporarily prevented from increasing in length by___________.A.cutting a square notch at each end of the crackB.drilling a hole at each end of the crackC.slot-welding the crackD.welding a doubler over the crack
考题
（2017年真题）裂缝对混凝土结构的危害性由大到小的排列顺序是（ ）A.贯穿裂缝、深层裂缝、表面裂缝
B.深层裂缝、表面裂缝、贯穿裂缝
C.贯穿裂缝、表面裂缝、深层裂缝
D.深层裂缝、贯穿裂缝、表面裂缝
考题
裂缝对混凝土结构的危害性由大到小的排列顺序是（ ）A.贯穿裂缝、深层裂缝、表面裂缝
B.深层裂缝、表面裂缝、贯穿裂缝
C.贯穿裂缝、表面裂缝、深层裂缝
D.深层裂缝、贯穿裂缝、表面裂缝
考题
裂缝对混凝土结构的危害性由大到小的排列顺序是（ ）A、贯穿裂缝、深层裂缝、表面裂缝
B、深层裂缝、表面裂缝、贯穿裂缝
C、贯穿裂缝、表面裂缝、深层裂缝
D、深层裂缝、贯穿裂缝、表面裂缝
考题
My watch fell down on the ground and there was a hairline crack in the( )of dial plate. A.frontier
B.boundary
C.limit
D.rim
考题
单选题If fuel tank levels are found to have increased after a grounding, you should suspect （）.A
a damaged pneumercator lineB
a puncture, crack, or hole in the skin of the vesselC
improper record keeping of fuel transfer activitiesD
contamination of the contaminated steam supply system
考题
单选题A diesel engine cylinder head can crack as a result of （）A
a leaking seal ringB
heat transfer from exhaust valvesC
restricted cooling passagesD
overheated intake valves
考题
单选题A diesel engine piston crown can crack from （）A
excessive piston to liner clearanceB
excessive dirt beneath the piston crown that reduces heat transferC
faulty nozzle sprayD
all of the above
考题
单选题A crack in the deck plating of a vessel may be temporarily prevented from increasing in length by（）.A
cutting a square notch at each end of the crackB
drilling a hole at each end of the crackC
slot-welding the crackD
welding a doubler over the crack
考题
单选题Small crack in the crankshaft bearing surface of a diesel engine are an indication of（）A
corrosion frettingB
insufficient lubricationC
abnormal wearD
fatigue failure
考题
单选题The garboard strake is the（）.A
raised flange at the main deck edgeB
riveted crack arrester strap on all-welded shipsC
riveting pattern most commonly used in ship constructionD
row of plating nearest the keel
考题
单选题The lengthening of a crack formed in the shell plating of a ship may be prevented by （）.A
welding brackets across both ends of the crackB
chipping out and slot welding the entire crackC
drilling a hole at each end of the crackD
cutting a square notch at each end of the crack
考题
单选题按裂缝的走向分类有（）三种。A
沉陷裂缝、干缩裂缝、滑坡裂缝B
表面裂缝、内部裂缝、冻胀裂缝C
横向裂缝、纵向裂缝、龟纹裂缝D
水平裂缝、垂直裂缝、交叉裂缝
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