A、Because the piston is exposed to very high temperature, it must be cooled
B、The lower the piston cooling temperature is, the better it is
C、Both water and lube oil can be used as coolant
D、One of the piston cooling methods is vibration cooling, with better effect
更多“As to the piston cooling, of the following, which statement is not true?（）”相关的问题
A、radially from the shaft B、parallel to each other and to the shaft C、parallel to each other but at a right angle to the shaft D、at an angle to each other and to the shaft
A、top of the piston and bottom side of head, with the piston at BDC B、piston and head, including the space around the piston to the top of the upper ring and under the valves, with the piston at TDC C、bottom of the piston and bottom side of the head at TDC, regardless of upper ring location and valve placement D、top of the piston and bottom side of the head at TDC as compared to that which exists between the top of the piston and bottom side of head at BDC
A、twice as large as with a cast iron piston B、the same size as with a cast iron piston C、half as large as with a cast iron piston D、the same size as the crown of an aluminum piston
A、accelerates；decelerates B、accelerates；accelerates C、decelerates；decelerates D、decelerates；accelerates
A、transfer heat from the cylinder to the piston B、scrape oil from the sides of the piston C、seal the combustion space from the crankcases D、prevent any piston contact with the cylinder liner
A、seal the space between the piston and the liner B、reduce the amount of lube oil burned in the combustion chamber C、transmit heat from the piston to the cylinder liner D、damp out fluctuations of the piston side thrust
A、Control the amount of lube oil burned in the combustion chamber B、Transmit heat from the piston to the cylinder liner C、Prevent damage to ring groove inserts by acting as a heat dam D、Dissipate combustion chamber gas pressure by channeling it through the ring gap
A、prevent piston side thrust B、prevent engine friction losses C、transmit heat from the piston to the cylinder liner D、remove oil from the cylinder combustion space
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