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单选题
The design of the connecting rod large end bearing is similar to that of the mainbearings Whats the meaning of "that" in the sentence above?（）
A
the connecting rod
B
large end bearing
C
the main bearing
D
the design
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更多 “单选题The design of the connecting rod large end bearing is similar to that of the mainbearings Whats the meaning of "that" in the sentence above?（）A the connecting rodB large end bearingC the main bearingD the design” 相关考题
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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
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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
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单选题Abnormal crankpin bearing and piston skirt surface wear indicate（）A
a restricted air intakeB
a clogged connecting rod oil passageC
incorrect connecting rod alignmentD
high cylinder firing temperatures
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单选题At bottom dead center, the centerline of the connecting rod usually coincides with the（）A
angularity of the piston motionB
inertia moment from the pistonC
centerline of the cylinderD
centerline of the king pin
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单选题The connecting rod large end bearing shell generally has tags for location and oil grooves round the center of its axial length which correspond with grooves in the （） through which oil is transmitted up the rod to lubricate the small end.A
connecting rodB
piston rodC
bearing housingD
none of the above
考题
单选题（） is fully floating in both connecting rod small end and the piston skirt.A
The piston rodB
The cross head pinC
The gudgeon pinD
The crank-pin
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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 small end of the connecting rod is attached to the piston with a （）.A
crankpinB
sliding wedgeC
wrist pinD
torque bashing
考题
单选题The crankshaft is of the semi-built type, with the （） being shrunk into the forged or cast steel crank throws.A
journalB
crank-pinC
main bearingD
large end of connecting rod
考题
单选题As to the bearing, of the following, which statement is not true?（）A
ff overheat is found, the engine must be stopped for inspectionB
Much heat of the crankcase door indicates that the bearing is overheatedC
If bearing clearance is too large, knocking will be heard in the crankcaseD
If bearing clearance is too large or too small, the white metal may be melted
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On most modern diesel engines, the main and connecting rod bearings receive their lubricating oil by （）.A
banjo feedB
splash feedC
gravity feedD
pressure feed
考题
单选题Which of the following operating conditions can occur when shims are removed from the joint between the foot of a marine type diesel engine connecting rod and the bearing box?（）A
Decreased connecting rod bearing clearanceB
Increased connecting rod bearing clearanceC
Decreased compression ratioD
Increased compression ratio
考题
单选题Because the top of the connecting rod swings about the pin and changes direction each time the piston reaches mid-stroke, the relative speed between bearing and pin at mid-stroke is zero, （）to a maximum as the piston approaches top or bottom dead center and then （） back to zero again as the piston approaches mid-stroke and the connecting rod changes direction.A
accelerates；deceleratesB
accelerates；acceleratesC
decelerates；deceleratesD
decelerates；accelerates
考题
单选题An acceptable means of tightening connecting rod and main bearing cap bolts is to measure the （） Ⅰ.torque applied to each nut and bolt assembly Ⅱstretch of each nut before and after tighteningA
ⅠonlyB
Ⅱ onlyC
both Ⅰ and ⅡD
neither Ⅰ nor Ⅱ
考题
单选题（） are generally formed in the frame of the both in-line and Vee engines to give maintenance access to the crankshaft main and connecting rod large end bearing.A
DoorsB
Aspirate gauzerC
CouplingD
Blind
考题
单选题Doors are generally formed in the （） of the both in-line and Vee engines to give maintenance access to the crankshaft main and connecting rod large end bearing.A
bedplatesB
columnsC
cylinder blocksD
safety caps
考题
单选题A distance piece, known as a （） may be interposed between the rod and the bearing housing.A
bearing shellB
bearing linerC
compression plateD
lead wire
考题
单选题The lower end of each piston rod is reduced in diameter to fit a bore in （）, this being secured to the piston rod by a nut.A
the crank-webB
the connecting rodC
the main bearingD
the cross-head
考题
单选题An acceptable method of measuring for the correct rotational force applied to the connecting rod and main bearing bolts, is to use a（）A
torque wrenchB
monkey wrenchC
pipe wrenchD
slugging wrench
考题
单选题Generally the gudgeon pin is fully floating in both connecting rod small end and （）.A
the crossheadB
the crankshaftC
large endD
the piston bosses
考题
单选题The slippers run （） in the crosshead guides as the piston and rod are （）and prevent the top of the connecting rod from moving sideways.A
up and down；reciprocatingB
up and down；rotatingC
back and forth；reciprocatingD
back and forth；rotating
考题
单选题In a large, low-speed diesel engine the clearance between the piston crown and cylinder head is found to be excessiveIn order to correct for this, you should（）A
build up the piston crown by metal sprayingB
build up the cylinder head by metal sprayingC
insert shims between the crankpin bearing box and the connecting rod footD
install a thinner head gasket
考题
单选题Which term describes piston pins having bearing surfaces in both the piston bosses and connecting rod eye?（）A
StationaryB
Full floatingC
Semi-floatingD
Free rolling
考题
单选题The insertion of shims between the foot of a marine type connecting rod and a bearing box would result in （）A
increased compression ratioB
decreased compression ratioC
increased bearing clearanceD
decreased bearing clearance
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
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