问题 问答题 简答题

简述斜巷调度绞车开车前检查试验内容。

答案

参考答案:

1.检查调度绞车周围支架、顶板和两帮情况,绞车的固定情况,以及杂物积堆情况。有问题先处理。

2.检查绞车的制动闸和工作闸完好情况。闸带必须完整无裂纹,其厚度必须大于3mm。闸面平整无油泥。施闸试验后,当闸把位置在水平线以上即应闸住。

3.检查牵引钢丝绳完好情况。钢丝绳无硬伤、打结和严重锈蚀,断丝不超过有关规定要求。钢丝绳在滚筒上排列整齐。绞车有可靠的护绳板。

4.检查连接装置牢固可靠情况。钢丝绳与矿车、矿车与矿车、主绳与保险绳的连接必须牢固可靠。

5.检查绞车的控制开关。电气设备应无失爆现象。操作按钮灵活可靠,声光信号清晰准确。

6.空车试运行情况。空车启动时应无异响和震动,无甩油现象。

单项选择题 A1/A2型题
阅读理解

阅读理解。

    The young boy saw me, or rather, he saw the car and quickly ran up to me, eager to sell his bunches

of bananas and bags of peanuts. Though he appeared to be about twelve, he seemed to have already

known the bitterness of life. "Bananas 300 naira. Peanuts 200 naira." He said in a low voice. I bargained

him down to 200 total for the fruit and nuts. When he agreed, I handed him a 500 naira bill. He didn't

have change, so I told him not to worry. He said thanks and smiled a row of perfect teeth.

     When, two weeks later, I saw the boy again, I was more aware of my position in a society where it's

not that uncommon to see a little boy who should be in school standing on the corner selling fruit in the

burning sun. My parents had raised me to be aware of the advantage we had been afforded and the

responsibility it brought to us.

     I pulled over and rolled down my window. He had a bunch of bananas and a bag of peanuts ready.

I waved them away. "What's up?" I asked him.

     "I…don't have money to buy books for school." I reached into my pocket and handed him two fresh

500 naira bills. "Will this help?" I asked. He looked around nervously before taking the money. One

thousand naira was a lot of money to someone whose family probably made about 5,000 naira or less

each year. "Thank you, sir." he said. "Thank you very much!"

     When driving home, I wondered if my little friend actually used the money for schoolbooks. What if

he's a cheat? And then I wondered why I did it. Did I do it to make myself feel better? Was I using him?

Later, I realized that I didn't know his name or the least bit about him, nor did I think to ask.

     Over the next six months, I was busy working in a news agency in northern Nigeria. Sometime after I

returned, I went out for a drive. When I was about to pull over, the boy suddenly appeared by my

window with a big smile ready on his face.

     "Oh, gosh! Long time."

     "Are you in school now?" I asked.

     He nodded.

     "That's good," I said. A silence fell as we looked at each other, and then I realized what he wanted.

"Here," I held out a 500 naira bill. "Take this." He shook his head and stepped back as if hurt. "What's

wrong?" I asked. "It's a gift."

      He shook his head again and brought his hand from behind his back. His face shone with sweat. He

dropped a bunch of bananas and a bag of peanuts in the front seat before he said, "I've been waiting to

give these to you."

1. What was the author's first impression of the boy?

A. He seemed to be poor and greedy.

B. He seemed to have suffered a lot.

C. He seemed younger than his age.

D. He seemed good at bargaining.

2. The second time the author met the boy, the boy ______.

A. told him his purpose of selling fruit and nuts

B. wanted to express his thanks

C. asked him for money for his schoolbooks

D. tried to take advantage of him

3. Why did the author give his money to the boy?

A. Because he had enough money to do that.

B. Because he had learnt to help others since childhood.

C. Because he held a higher position in the society.

D. Because he had been asked by the news agency to do so.

4. Which of the following best describes the boy?

A. Brave and polite.          

B. Kind and smart.

C. Honest and thankful.        

D. Shy and nervous.