问题 问答题 简答题

怎样进行叶轮给煤机的操作?

答案

参考答案:

(1)通知集控室送上叶轮给煤机电源。

(2)等输煤皮带启动后,方可启动叶轮给煤机。

(3)按下主电动机启动按钮,主电动机启动。控制器指示灯亮,电源接通。

(4)按顺时针方向缓慢旋转控制器的电位器旋钮,叶轮的转速逐渐升高,直至运行规定的转速。

(5)根据卸煤沟煤位情况确定叶轮给煤机行走方向。待叶轮转速正常后即可按下行走电动机的启动按钮,实现前进或后退。

(6)因给煤需要,可按下行走电动机的停止按钮,叶轮给煤机停止行走,进行原地给煤。

(7)叶轮给煤机行走至轨道终端时碰撞行程开关,给煤机即停止运行,令其再次启动时,只能向相反方向行走。

(8)在叶轮给煤机停止运行前,首先停行走电动机,然后将控制器的电位器旋钮缓慢地逆时针旋至零位,叶轮停止转动。再按下主电动机停止按钮,整机停止工作。

填空题
阅读理解

According to body language expert Robert Phipps,the way people sleep at night actually determines a lot about the type of personality they have.Phipps has identified four sleeping positions that affect personality.

Phipps found that worriers,those who stress the most,tend to sleep in the fetal(胎儿的)position.He found that this is the most common bedtime position,with nearly 58 percent of people sleeping on their side with knees up and head down.The more we curl up(蜷曲),the more comfort we are seeking,according to Phipps.

The second most common position is the log.Sleeping with a straight body,with arms at each side,as if they are standing guard at Buckingham Palace,indicates stubbornness,and these people(the 28 percent who sleep this way)often wake up stiffer than when they went to sleep.

“The longer you sleep like this,the more rigid your thinking is and you can become inflexible,which means you make things harder for yourself,”according to Phipps.

Yearner(向往型)sleepers are next on the list.About 25 percent of people sleep in this style—on their side with arms stretched out in front,looking as if they are either chasing a dream or perhaps being chased themselves.Yearners are typically their own worst critics,always expecting the best results,explained Phipps.These people often wake up refreshed and eager to face the challenges of the day ahead.

Perhaps the most peculiar(奇怪的)of sleep styles is the freefaller position.This sleep style makes up 17 percent of the population.They sleep face down with arms stretched out.These people,according to Phipps,feel like they have little control over their life.Not only is this the strangest of sleep styles,but also the least comfortable,and people may wake up feeling tired and have no energy.

In conclusion,Phipps has only one more thing to add:“A good night's sleep sets you up for the following day and our sleeping positions can determine how we feel when we wake.”

小题1:Which of the following is the best title of the passage?

A.A Good Night's Sleep Sets You Up for the Following Day

B.Your Personality Depends a Lot on How You Sleep at Night

C.How You Sleep at Night Affects What You Do the Next Day

D.Which Sleeping Position Helps You Sleep Comfortably小题2:Which of the following pictures is the fetal position?

小题3:The underlined word“rigid”is closest in meaning to “________”.

A.stubborn

B.flexible

C.comfortable

D.strange小题4:Which of the following shows the structure of the passage?

CP:Central  P:Point Sp:Subpoint

C:Conclusion