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单选题The longer the ignition delay period occurs in a diesel engine, the （）.A less fuel will enter the cylinderB lower will be cylinder compression temperaturesC more complete will be fuel combustionD more rapid will be the rise in combustion pressure

题目
单选题
The longer the ignition delay period occurs in a diesel engine, the （）.
A

less fuel will enter the cylinder

B

lower will be cylinder compression temperatures

C

more complete will be fuel combustion

D

more rapid will be the rise in combustion pressure

参考答案和解析
正确答案： B
解析： 暂无解析
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相似问题和答案

第1题：

The cetane number of a diesel fuel oil indicates its ______.

A.ignition quality

B.acid content

C.heating value

D.viscosity


正确答案：A

第2题：

单选题
In diesel engineering practice, the term used to express the ignition quality of a particular fuel is（）
A

cetane number

B

octane number

C

ignition index number

D

volatility point


正确答案： B
解析： 暂无解析

第3题：

Fuel droplets injected into a diesel engine cylinder must have adequate penetration to ____.

A.prolong the ignition delay period

B.ensure the beginning of fuel injection

C.thoroughly utilize the air charge

D.allow controlled fuel combustion


正确答案：C

第4题：

单选题
The process that occurs when heat is generated by a chemical reaction within a substance and continues to a point of ignition is known as （）.
A

chemical ignition

B

spontaneous combustion

C

chemical combustion

D

radiation ignition


正确答案： C
解析： 暂无解析

第5题：

单选题
A diesel engine will lose power if fuel injection occurs too early because the （）
A

fuel will not be properly atomized in the cylinder

B

ignition will be delayed due to low ignition temperature

C

maximum fuel expansion will occur on the compression stroke

D

fuel will ignite before top dead center


正确答案： A
解析： 暂无解析

第6题：

How are STP timers and state transitions affected when a topology change occurs in an STP environment？（）

  • A、All ports will temporarily transition to the learning state for a period equal to the max age timer plus the forward delay interval.
  • B、All ports will transition temporarily to the learning state for a period equal to the forward delay interval.
  • C、The default aging time for MAC address entries will be reduced for a period of the max age timer plus the forward delay interval.
  • D、The default hello time for configuration BDPUs will be reduced for the period of the max age timer.

正确答案:C

第7题：

单选题
The ignition of the fuel in diesel engine is caused by the （） of compression of the air previously admitted into the cylinders.
A

vacuum pressure

B

specific gravity

C

heat

D

viscosity


正确答案： B
解析： 暂无解析

第8题：

International traders often () a longer period for ()of an account.

A、requested,settlement

B、requested,settling

C、request,settlement

D、request,settling


参考答案：C

第9题：

单选题
In an operating diesel engine, pre-ignition can be caused by （）
A

excessively late fuel injection

B

oil in the air charge

C

water in the fuel

D

injection continuing after the fuel charge is ignited


正确答案： C
解析： 暂无解析

第10题：

单选题
How are STP timers and state transitions affected when a topology change occurs in an STP environment？（）
A

All ports will temporarily transition to the learning state for a period equal to the max age timer plus the forward delay interval.

B

All ports will transition temporarily to the learning state for a period equal to the forward delay interval.

C

The default aging time for MAC address entries will be reduced for a period of the max age timer plus the forward delay interval.

D

The default hello time for configuration BDPUs will be reduced for the period of the max age timer.


正确答案： C
解析： 暂无解析

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