网友您好， 请在下方输入框内输入要搜索的题目：
题目内容
（请给出正确答案）
单选题
The external circumference of a pair of main bearing shells is slightly （） that of the bore of the housing which receives themWhat’s the meaning of “that” in the sentence above?
A
less than
B
lighter than
C
larger than
D
smaller than
参考答案
参考解析
解析：
暂无解析
更多 “单选题The external circumference of a pair of main bearing shells is slightly （） that of the bore of the housing which receives themWhat’s the meaning of “that” in the sentence above?A less thanB lighter thanC larger thanD smaller than” 相关考题
考题
In an engine with a pot-shaped piston, some lubricating oil from the main bearing will pass along a drilled passage in the crankshaft to the bottom end bearing and then up a connection rod to theA.crossheadB.crankpinC.crank journalD.gudgeon pin
考题
Adjust ______by means of lead wire.A.the clearance of the main bearingB.the diameter of main bearingC.the gap of main bearingD.the tolerance of main bearing
考题
Which three of these are characteristics of UTP cable？（）A、The wires in each pair are wrapped around each otherB、An insulating material covers each of the individual copper wires in itC、It comes in eight-pair wire bindlesD、EMI and RFI cause only limited degradation to signals running over itE、It comes in seven categoriesF、IT has an external diameter of approximately 0 28 inches
考题
单选题On a large low-speed main propulsion diesel engine, lower main bearing wear is usually measured by using a/an （）A
dial indicatorB
outside caliperC
bridge gaugeD
tram rod
考题
单选题The external circumference of a pair of main bearing shells is slightly larger than that of the bore of the housing which receives themThe difference is termed （）.A
nipB
napC
gapD
lip
考题
单选题Diesel engine main and connecting rod precision bearings are made in halvesEach half exceeds one-half the bearing circumference by a small amountThe small amount is termed （）.A
clearanceB
crushC
pitchD
thrust
考题
单选题The main bearing shells often have a thin （） of lead or indium to provide a layer giving protection against corrosion.A
flangeB
flashC
plateD
sheet
考题
单选题The bearing shells depend on the accuracy of （） to held them in a truly circular shape.A
the gapB
the clearanceC
the boreD
the housing
考题
单选题Adjust （） by means of lead wire.A
the clearance of the main bearingB
the diameter of main bearingC
the gap of main beatingD
the tolerance of main bearing
考题
单选题Worn main bearing will cause the compression ratio of an auxiliary diesel engine to（）A
increaseB
decreaseC
remain the sameD
increase on compression decrease on expansion
考题
单选题A main bearing consists of two shells which are secured by means of studs and （）.A
tie rodsB
through boltsC
lead wiresD
bearing caps
考题
单选题In an engine with a pot-shaped piston, some lubricating oil from the main bearing will pass along a drilled passage in the crankshaft to the bottom end bearing and then up a connection rod to the （）.A
crossheadB
crankpinC
crank journalD
gudgeon pin
考题
单选题In an engine with a pot-shaped piston, some lubricating oil from the main bearing will pass along a （） in the crankshaft to the bottom end bearing andthen up a connection rod to the gudgeon pin.A
telescopic pipesB
large boreC
drilled passageD
tied rod
考题
单选题Which of the listed bearing types is an example of a solid bearing?（）A
Piston wrist pin bushingB
turbine bearingC
Spring bearingD
Diesel engine main bearing
考题
单选题Shims of different thicknesses are inserted between the shells to enable adjustment of （）.A
the bearing clearancesB
the bearing thicknessC
the bearing strengthD
the bridge hardness
考题
单选题The main bearing metal is a lining （）.A
inside the bearingB
outside the bearingC
covering the crankshaftD
none of the above
考题
单选题Measure （） by means of lead wire.A
the clearance of the main bearingB
the play of the miler bearingC
the gap of the main bearingD
the tolerance of the main bearing
考题
单选题An indirect radar echo is caused by a reflection of the main lobe of the radar beam off the observer’s vessel. Which of the following is NOT a characteristic of indirect echoes?（）.A
Their bearing is almost constant，even when the true bearing of the contact changes appreciablyB
They always appear on a bearing of 90°from the true bearing of the contactC
The indirect echoes usually appear in shadow sectorsD
When plotted，their movements are usually abnormal
考题
单选题The main bearing shells are made of steel with a lining of bearing metal which may be white metal, copper-lead or aluminum-tin alloy What is the meaning of “which” in the sentence above?（）A
main bearing shellsB
main bearingC
steelD
bearing metal
考题
单选题The main bearings are provided with thin-walled （）, lined with a copper-lead alloy.A
steel guidesB
steel shellsC
steel bearing capsD
pig iron
考题
单选题Crank web deflection readings will give a positive indication of （）.A
worn main bearing journalsB
torsional stress deformationC
slack thrust bearingsD
bearing shells shim dimensions
考题
单选题To determine the main bearing clearance of a propulsion diesel engine, you should measure the main bearing shell using a ball anvil outside micrometer and measure the crankshaft journal using a/an （）A
telescopingB
ring ‘snap’ gaugeC
inside vernier caliperD
outside micrometer
考题
单选题While inspecting the main bearings on a diesel engine you find impregnated dirt and scratches in the bearing surface you would, therefore, suspect that （）A
the bearing had been overheatedB
water was present in the oilC
the lube oil was not being properly filteredD
the maximum allowable bearing pressure had been exceeded
考题
单选题The design of （） is similar to that of the main bearing.A
the block bearingB
the camshaft bearingC
the connecting rod small end bearingD
the connecting rod large end bearing
考题
单选题While you are at anchor，what will serve as a positive warning that you are drifting towards the wrecks located to the NW and SW of your 2215 position（）.A
A decreasing reading on loran pair 9960-XB
The bearing of Wolf Trap Light changing to the rightC
Increasing soundingsD
The bearing of Wolf Trap Light changing to the left
热门标签
最新试卷