The carbon deposits on the piston crown and in the ring grooves （）.
- Ashould be scraped
- Bshould be derusted
- Cshould be drilled out
- Dto be brushed off
问题
The carbon deposits on the piston crow
参考解析：
分类：船舶动力装置题库,海船船员考试题库
相关推荐
-
1、As to the piston cooling, of the follo
As to the piston cooling, of the following, which statement is not true?（）ABecause the piston is exposed to very high temperature, it must b...
-
2、The function of the piston compression
The function of the piston compression rings used in a diesel engine is to （）Aseal the space between the piston and linerBtransmit heat from the piston to the cylinder linerCreduce the amount of combustion gas blow-byDall of the above
-
3、The position of the piston parts in re
The position of the piston parts in relation to each other is secured by means of （） in the crown.Aa markBa boltCa dowel pinDa measuring tool
-
4、The main purpose of the piston oil scr
The main purpose of the piston oil scraper rings is to （）.Aseal the space between the piston and the linerBreduce the amount of lube oil b...
-
5、The cooling of the piston is carried o
The cooling of the piston is carried out by circulating （） across the underside of the crown and inside the ring belt or through specially shaped passages.Asea waterBscavenging airClubricating oilDfuel oil
-
6、The discharge from a carbon dioxide fi
The discharge from a carbon dioxide fire extinguisher should be directed（）.Aat the base of the flamesBat the center of the flamesCto the lee side of the flamesDover the tops of the flame