问题 问答题 简答题

磁场削弱装置不过渡的处理?

答案

参考答案:

⒈司机控制器主手柄2位以上(无级调速机车为降,保,升位),机车速度达到过渡值,磁场削弱开关在自动,手动位时均不过渡.

⑴故障处所

①329,377号线间1ZJ常开联锁接触不良.

②377,382号线间1HKg牵引常闭联锁接触为良.

⑵应急处理:短接1ZJ常开联锁或1HKg牵引常闭联锁:

⒉机车加负荷运行中,自动过渡失效,而使用手动有效.

⑴故障处所

①自动脱扣开关6DZ跳开.

②过渡装置故障.

⑵应急处理

①将6DZ扳至”合”位.

②使用手动过渡维持运行.

单项选择题
单项选择题

Low levels of literacy and numeracy have a damaging impact on almost every aspect of adults, according to a survey published yesterday, which offers (1) of a developing underclass. Tests and (2) with hundreds of people born in a week in 1958 graphically illustrated the (3) of educational underachievement. The effects can be seen in unemployment, family (4) , low incomes, depression and social inactivity.

Those who left school at 16 with poor basic skills had been employed for up to four years less than good readers (5) they reached 37. Professor John Bynner, of City University, who carried the research, said that today’s (6) teenagers would even encounter greater problems because the supply of (7) jobs had shrunk.

Almost one fifth of the 1,700 people interviewed for yesterday’s report had poor literacy and almost half (8) with innumeracy, a proportion (9) other surveys for the Basic Skills Agency. Some could not read a child’s book, and most found difficult (10) written instruction.

Poor readers were twice as likely to be a low wage and four times likely to live in a household where partners worked. Women in this (11) were five times as likely to be (12) depressed, (13) both tended to feel they had no control over their lives, and to trust others (14) .

Those who had low literacy and numeracy were seldom (15) in any community organization and less likely than others to (16) in a general election. There had been no (17) in the literary level of (18) reporting problems.

Alan Wells, the agency’s director, said: “ The results emphasize the dangers of developing an underclass people, who were out of work, (19) depressed and often labeled themselves as (20) . There is a circle of marginalization, with the dice against these people and their families.”

9()

A. in light of

B. in line with

C. in case of

D. in time of