问题 问答题 简答题

监控装置实施动作后是如何撤除控制指令的?

答案

参考答案:

(1)在恒速区运行,实施动作后,控制指令撤除分两种情况:

1)LKJ具备常用制动控制功能时常用固定模式限速值-实际速度值>3km/h时,撤除语音提示指令;常用固定模式限速值-实际速度值>3km/h时,撤除解除牵引力指令;固定模式限速值-实际速度值>5km/h时,提供撤除常用制动指令的条件。输出紧急制动指令后,列车停车后自动撤除该指令输出紧急制动指令后不允许撤除解除牵引力和常用制动指令,列车停车后自动撤除该两项指令。

2)LKJ不具备常用制动控制功能时紧急固定模式限速值-实际速度值>3km/h时,撤除语音提示指令;紧急固定模式限速值-实际速度值>3km/h时,撤除解除牵引力指令。输出紧急制动指令后,列车停车后自动撤除该指令。输出紧急制动指令后不允许撤除解除牵引力指令,列车停车后自动撤除该指令

(2)在减速区运行,实施动作后,控制指令撤除分两种情况:

1)具有常用制动控制功能时常用计算模式限速值-实际速度值>5km/h时,撤除语音提示指令;常用计算模式限速值-实际速度值>3km/h时,撤除解除牵引力指令;运行速度<目标地点的固定模式限速值时,提供撤除常用制动指令条件。目标地点的固定模式限速值为0时,列车停车后提供撤除常用制动指令条件输出紧急制动指令后,列车停车后自动撤除该指令输出紧急制动指令后不允许撤除解除牵引力和解除常用制动指令,列车停车后自动撤除该两项指令

2)不具有常用制动控制功能时紧急计算模式限速值-实际速度值>5km/h时,撤除语音提示;紧急计算模式限速值-实际速度值>3km/h时,撤除解除牵引力指令。输出紧急制动指令后,列车停车后自动撤除该指令输出紧急制动指令后不允许撤除解除牵引力指令,列车停车后自动撤除该指令.

单项选择题
阅读理解

阅读理解。

     "Everything happens for the best," my mother said whenever I faced disappointment. "If you carry on,

one day something good will happen. And you'll realize that it wouldn't have happened if not for that

previous disappointment."

      Mother was right, as I discovered after graduating from college in 1932, I had decided to try for a job in radio, then work my way up to a sports announcer. I hitchhiked to Chicago and knocked on the door of every station-and got turned down every time. In one studio, a kind lady told me that big stations couldn't risk hiring an inexperienced person. "Go out in the sticks and find a small station that'll give you a chance," she said. I thumbed home to Dixon, Illinois.

     While there were no radio-announcing jobs in Dixon, my father said Montgomery Ward had opened a store and wanted a local athlete to manage its sports department. Since Dixon was where I had played high school football, I applied. The job sounded just right for me. But I wasn't hired. My disappointment must have shown. "Everything happens for the best." Mom reminded me. Dad offered me the car to hunt a job. I tried WOC Radio in Davenport, Iowa. The program director, a wonderful Scotsman named Peter MacArthur told me they had already hired an announcer.

      As I left his office, my frustration (挫折) boiled over. I asked aloud, "How can a fellow get to be a sports announcer if he can't get a job in a radio station?" I was waiting for the elevator when I heard MacArthur calling, "What was you said about sports? Do you know anything about football?" Then he stood me before a microphone and asked me to broadcast an imaginary game. The preceding (在前的) autumn, my team had won a game in the last 20 seconds with a 65-yard run. I did a 15-minute build-up to that play, and Peter told me I would be broadcasting Saturday's game! On my way home, as I have many times since, I thought of my mother's words: "If you carry on, one day something good will happen. Something wouldn't have happened if not for that previous disappointment."

      I often wonder what direction my life might have taken if I'd gotten the job at Montgomery Ward.

1. The writer shows his _____ by saying ""… if I'd not gotten the job at Montgomery Ward".

A. regret    

B. happiness    

C. gratefulness    

D. disappointment  

2. The underlined phrase "out in the sticks" probably means _____?    

A. in radio stations     

B. in the country     

C. in big cities         

D. in Dixon, Illinois 

3. Why did the writer mention his mother's words over and again? Because _____.     

A. it was his mother's words that encouraged him     

B. his mother was a person who talked a lot    

C. nothing good has happened to him up to now     

D. he got turned down every time he tried

4. Which of the following statements is true according to the passage?    

A. There was a small radio station in Dixon, Illinois.     

B. Peter MacArthur was a program director in Scotland.    

C. WOC Radio in Davenport broadcast imaginary games.     

D. Montgomery Ward had a store with a sports department.

5. When did the writer decide to take a radio-announcing job?     

A. When he hitchhiked to Chicago.    

B. After he graduated from college.     

C. Before he graduated from college. 

D. As soon as he was turned down.