海船船员考试
单选题Which of the following is true about the fuel injection with an ordinary diesel engine?（）A The process begins after TDCB The process ends before TDCC When the piston is near to the TDC the fuel injection endsD None of the above is true
题目
The process begins after TDC
The process ends before TDC
When the piston is near to the TDC the fuel injection ends
None of the above is true
相似问题和答案
第1题：
Because the timing of injection is crucial, _____ mounted on the camshaft, which is driven by the crankshaft are used to operate the fuel pumps, one of which is provided for each cylinder.
A.gears
B.rams
C.barrels
D.cams
第2题：
Which of the following represents the significance the fuel oil cetane number?
A.The cetane number has no affect on injection lag
B.The cetane number is an indication of the fuel's viscosity
C.Ignition lag is reduced with fuels having a high cetane number
D.The cetane number is of little significance in the combustion process
第3题：
Which of the following is TRUE about the family Katy is living with?
A. They are friendly. B. There are three people in their house.
C. They are strange. D. They have never taken Katy to the parties.
第4题：
Which of the following statements is true about a router's eBGP peers that is not also true about that same router's iBGP peers?（）
- A、The eBGP peer neighborship uses TCP
- B、The eBGP peer uses port 180 (default)
- C、The eBGP peer uses the same ASN as the local router
- D、The eBGP peer updates its AS_Path PA before sending updates to this router
正确答案:D
第5题：
B.Language is symbol
C.Animals also have language
D.Language is arbitrary
本题要求选不正确的，C选项，动物也有语言，错误。语言是人类在交际中使用的一套任意的声音符号系统。动物没有语言，动物只是本能发出声音。综上，应选C。
A选项，系统的，故排除。
B选项，符号，故排除。
D选项，任意的，故排除。
故正确答案为C项。
第6题：
A.It can be applied to separate two liquids
B.It cannot separate solids which contaminated in the oil.
C.It consists of purifier and clarifier
D.The centrifuge arranged to separate two liquids is known as purifier
第7题：
Which of the following problems is the main source of fuel pump and injection system malfunctions?
A.Improper lubrication
B.Air in the fuel system
C.Coated fuel lines
D.Excessive vibration
第8题：
Which of the following statements about Leopold and Rudolph Blaschka is TRUE?
A. They were brothers.
B. They were artists.
C. They were florists.
D. They were farmers.
32．答案为B。根据第一段最后一句，the work of two artists-naturalists，Leopold Blaschka and his son Rudolph作出该项选择。
第9题：
Which of the following is TRUE about a caching name server？（）
- A、They must have a trusted SSL certificate
- B、They can be authoritative
- C、They cannot be load-balanced
- D、They can be recursive
- E、They require DHCP
正确答案:B,D
第10题：
deliver proper fuel quantity to the injection nozzle
provide rapid fuel injection cutoff
control fuel quantity entering the pump body
control fuel pressure delivered to the combustion chamber