The bearing shell generally has （） for location and oil grooves round the center of its axial length.

[单选题]Research has shown that first impressions are generally more influenced by_

[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, k

[单选题]The bearing of tailshaft sealing equipment which adopts the oil nature circulation is hot, the reason isA．the rotate speed fluctuationB．the ventilation tube cloggedC．the main engine accelerate so fastD．stormy waves

[单选题]A． thrust bearing is used with a propulsion diesel engine to ____.A．control axial movement of the crankshaftB．transmit engine thrust to the propeller shaftC．absorb vibrations in the propeller shaftingD．prevent propeller thrust from being transmitted

[单选题]A thrust bearing is used with a propulsion diesel engine to （）.A . control axial movement of the crankshaftB . transmit engine thrust to the propeller shaftC . absorb vibrations in the propeller shaftingD . prevent propeller thrust from being transmi

[单选题]The oil quantity for bearing lubrication should be applied in such an amount as to be sufficient to carry away the （） caused by the friction at the bearings.A . acidsB . additivesC . heatD . gear

[单选题]The main bearing metal is a lining （）.A . inside the bearingB . outside the bearingC . covering the crankshaftD . none of the above

[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

[名词解释] 英译汉：bearing

[单选题]________________[A] generally[B] almost[C] hardly[D] not