The lowest ring of a piston is ().
- Aa coil spring
- Ba sealing ring
- Can oil distributor ring
- Dmain seal ring
The lowest ring of a piston is ().
1、The lower section of a piston is calle
The lower section of a piston is called the ().AlandBskirtCcrownDplate
2、If the back clearance of a piston ring
If the back clearance of a piston ring is excessive,()Acompression pressure in the cylinder will be higherBcarbon will accumulate behind the ringCcombustion gases will penetrate beneath the ring landDpiston side thrust will be increased
3、A diesel engine piston ring face is in
A diesel engine piston ring face is in direct contact with the ().Atop of the ring grooveBcylinder liner oil filmCbottom of the ring grooveDback of the ring groove
4、Which of the following is the lowest c
Which of the following is the lowest cost DB2 product that can be legally installed on a Linux server that has 6 CPUs?()ADB2 Express EditionBDB2 Personal EditionCDB2 Workgroup Server EditionDDB2 Enterprise Server Editio
5、The piston ring grooves for a standard
The piston ring grooves for a standard engine are ()Achromium-plate against wearBanti-corrosion treatedCwhite metal lined against wearDflame hardened against wear
6、The lower end of each piston rod is re
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.Athe crank-webBthe connecting rodCthe main bearingDthe cross-head