【单选题】
蓄电池充电机基本特点中,当蓄电池充电机无法正常启动时,应具有___功能。(摘自维修手册)
A. 快速启动
B. 慢速启动
C. 强制启动
D. 紧急启动
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相关试题
【单选题】
牵引系统中网压额定最高限值为___V。(摘自维修手册)
A. 2100
B. 1950
C. 1850
D. 1500
【单选题】
长沙地铁1号线列车受电弓的额定工作气压是___。(摘自维修手册)
A. 550kPa
B. 500kPa
C. 450kPa
D. 650kPa
【单选题】
每辆动车安装的轴端接地装置的数量是___。(摘自维修手册)
【单选题】
长沙地铁1号线列车将方向手柄置于向后位时牵引列车,列车自身最高限速为___。(摘自维修手册)
A. 3km/h
B. 10km/h
C. 60km/h
D. 45km/h
【单选题】
产生旋转磁场的条件是对称的绕组上通___
A. 对称频率
B. 对称的电流
C. 不对称的电流 D、对称电压
【多选题】
可压溃管的行程包括___。(摘自维修手册)
A. 100mm
B. 200mm
C. 300mm
D. 400mm
【多选题】
下面哪些属于车钩锁的操作位置。___ (摘自维修手册)
A. 解钩
B. 连挂
C. 准备连挂
D. 准备解钩
【多选题】
空调制冷设备主要由___等部件组成。(摘自维修手册)
A. 压缩机
B. 冷凝器
C. 蒸发器
D. 节流装置
【多选题】
空调手动温度设置___等档位。(摘自维修手册)
A. 自动
B. 24℃
C. 26℃
D. 28℃
【多选题】
紧急制动的制动缓解施加方式,下列说法正确的是___(摘自维修手册)
A. 失电制动
B. 失电缓解
C. 得电缓解
D. 得电制动
【多选题】
长沙地铁1号线踏面制动单元主要由___等部件组成。(摘自维修手册)
A. 制动缸
B. 活塞
C. 间隙调整装置
D. 闸瓦托及托吊
【多选题】
长沙地铁1号线采用的风源系统由___主要部件构成。(摘自维修手册)
A. 整体吊架
B. 空气压缩机
C. 空气净化处理装置
D. 电控单元
【多选题】
长沙轨道交通1号线制动控制模块集成了电子制动控制单元、电子中继阀、变载荷阀、___等设备。(摘自维修手册)
A. 风缸
B. 停放脉冲阀
C. 压力开关
D. 压力传感器
【多选题】
下列属于空气悬挂系统的功能的是___。(摘自维修手册)
A. 吸收冲击和振动
B. 控制车体高度水平
C. 提供一个载重信号
D. 传递纵向牵引力和制动力
【多选题】
察看司机室双针压力表,可以了解___。(摘自车辆检修工教材)
A. 动车单元制动缸的压力
B. 拖车单元制动缸的压力
C. 拖车主风管压力
D. 拖车停放制动缸的压力
【多选题】
下列部件中___为供风和制动系统的组成部分。(摘自维修手册)
A. 踏面制动单元
B. 受电弓执行机构
C. 受电弓
D. EBCU
【多选题】
在长沙地铁1号线一期车辆中关于主风缸压力控制功能的说法正确的为___。(摘自维修手册)
A. 空压机主风管压力降到7BAR后将启动两台空压机
B. 空压机主风管压力降到7.5BAR后将启动当日工作为主的空压机
C. 空压机主风管压力降到6BAR后将启动激活单元车组的空压机
D. 空压机主风管压力升到9BAR后将自动停止空压机打风
E. 空压机主风管压力升到10BAR后将自动停止空压机打风
【多选题】
车辆乘客信息系统主要包括___三部分。(车辆检修工教材)
A. 广播对讲系统
B. 多媒体播放系统
C. 视频监控系统
D. 自动报站系统
【多选题】
TCMS系统可以设置PIS系统采用___两种模式报站。(车辆检修工教材)
A. ATC全自动广播
B. TCMS全自动
C. ATC半自动广播
D. TCMS半自动
【多选题】
车辆乘客信息系统主要包括___三部分。(车辆检修工教材)
A. 广播对讲系统
B. 多媒体播放系统
C. 视频监控系统
D. 自动报站系统
【多选题】
TCMS系统可以设置PIS系统采用___两种模式报站。(车辆检修工教材)
A. ATC全自动广播
B. TCMS全自动
C. ATC半自动广播
D. TCMS半自动
【多选题】
每个摄像头的监看画面都叠加有___信息。(摘自维修手册)
A. 时间
B. 位置
C. 文件大小
D. 视频类型
【多选题】
PIS系统中,RS485故障可能影响___功能。(摘自维修手册)
A. 乘客报警
B. PDU显示
C. 紧急报站
D. IDU显示
【多选题】
司机室扬声器可监听包括___的内容, (摘自维修手册)
A. OCC广播
B. 人工广播
C. 报站广播
D. 紧急广播
【多选题】
在长沙地铁1号线车辆在运行中可自动施加的制动类型为___。(摘自维修手册)
A. 停放制动
B. 紧急制动
C. 快速制动
D. 保持制动指令
【多选题】
长沙地铁1号线风源系统中空气滤清器主要由___组成。(摘自维修手册)
【多选题】
贯通道主要由下面哪些部分组成。___ (摘自维修手册)
A. 车体框
B. 折棚
C. 顶护板
D. 侧护板
E. 踏板
【多选题】
每个门控器都配有下列部件___(摘自维修手册)
A. 逻辑模块
B. 电源模块
C. 电控模块
D. 数据模块
【多选题】
可供选择的开关门模式有___ (摘自维修手册)
A. 自动
B. 半自动
C. 手动
D. 半联动
【多选题】
车门橙色指示灯什么情况下保持常亮。___ (摘自维修手册)
A. “车门处于打开位置
B. 开门过程中
C. 车门处于紧急操作状态下
D. 门关好
【多选题】
车门橙色指示灯什么情况下保持常亮。___ (摘自维修手册)
A. 车门处于打开位置
B. 开门过程中
C. 车门处于紧急操作状态下
D. 门关好
【多选题】
网络硬线切换定义正确的是:___(摘自维修手册)
A. 硬线:此时EDCU 响应列车硬连线发出的车门开关指令
B. 网络:此时EDCU 响应列车MVB 网络发出的车门开关指开门过程中
C. 硬线:此时EDCU 响应列车MVB 网络发出的车门开关指开门过程中
D. 网络:此时EDCU 响应列车硬连线发出的车门开关指令
【多选题】
每个门控器都配有下列部件___(摘自维修手册)
A. 逻辑模块
B. 电源模块
C. 电控模块
D. 数据模块
【多选题】
车门关闭过程中,可通过下列方式探测到障碍物:___ (摘自维修手册)
A. 力矩监控
B. 位移/时间监控
C. 电机电流监控
D. 电机电压监控
【多选题】
车辆车门开启的先前条件有___(摘自维修手册)
A. 车门开启允许信号
B. 零速信号
C. 开门信号
D. 牵引信号
【多选题】
长沙地铁1号线车辆的转向架驱动装置主要功能是:产生( )、();将驱动力矩、电制动力矩传递到( )上。 ___(摘自维修手册)
A. 驱动力矩
B. 电制动力矩
C. 轮对
D. 受电弓
【多选题】
下面哪些属于一系悬挂装置。___ (摘自维修手册)
A. 螺旋钢弹簧
B. 抗侧滚扭杆
C. 一系垂向止挡
D. 一系垂向减振器
【多选题】
牵引梁用于安装车辆的车钩缓冲器,用来传递___。(摘自维修手册)
A. 车体重力
B. 车辆间的牵引力
C. 车体横向冲击力
D. 车辆间的制动力
【多选题】
车体底架的主要作用是承受 ___。(摘自维修手册)
A. 车体上部载荷
B. 因各种原因而引起的横向力
C. 走行部传递来的各种振动和冲击
D. 传递列车的牵引力
E. 传递列车的制动力。
【多选题】
长沙地铁1号线车辆的转向架承载方式是()和()。 ___(摘自维修手册)
A. 中心牵引装置
B. 空气弹簧
C. 钢板
D. 油缸
推荐试题
【单选题】
(6)Which of the following is not the characteristic of regulation by hormone?___
A. diffusenin nature
B. longer in duration
C. accurate in action
D. action in overcorrection
【单选题】
7)Which of the following is not the characteristic of cells?___
A. They are bound by the plasma membrane
B. They have the ability to break down large molecules to smaller ones to Liberate energy for their activities
C. They possess a nucleus which contains genetic information in the form of deoxyribonucleicacid(DNA).
D. Living cells can not transform materials.
【单选题】
8)The breakdown of large molecules to smaller ones is called___
A. respiration
B. anabolism
C. catabolism
D. absorption
【单选题】
9) Which of the following descriptions about the characteristics of nervous regulation is wrong?___
A. It responds fast
B. It acts exactly
C. It responds slowly.D.
D. uration is short
【单选题】
10)Which of the following descriptions about the control of body function is wrong?___
A. Homeostasis is kept by feedback control.
B. Negative feedback minimizes the changes, leading to stability.
C. Positive feedback is not useful.
D. Feed-forward makes human body foresee and adapt itself to the environment promptly.
【单选题】
(1)Which of the following parts of knowledge of drugs should be included in pharmacology?___
A. The effects of drugs on man
B. The correlation of biological activity with chemical structure
C. The history, source, physical and chemical properties, compounding, biochemical and physiologicaleffects, mechanisms of action, absorption, distrilbution, biotransformation and excretion.
D. The prevention, recognition, and treatment of drug poisonings
【单选题】
(2)Which of the following is what a clinician is primarily interested in according to the text?___
A. Drugs which can be reasonably limited to those aspects that provide the basis for their rational clinical use
B. Chemical agents that are not used in therapy but are commonly responsible for household and industrial poisoning as well as environmental pollution
C. Drugs which are useful in the prevention,diagnosis and treatment of human disease,or in the prevention of pregnancy.
D. rugs which are useful in the prevention, diagnosis and treatment of human disease, or in the prevention of pregnancy.
【单选题】
(3)Why was the physician not interested in pharmacognosy?___
A. He didn't have to select the proper plants for his prescription
B. He had a broad botanical knowledge
C. Fewer drugs were obtained from natural sources
D. Natural drugs had little difference with synthetic ones
【单选题】
(4)Which of the following is the best way of studying pharmacology for medical students and practitioners?___
A. to have a broad botanical knowledge
B. to select a plant and its preparation
C. to have the ability to purify natural plants
D. to have curiosity that stimulates them to learn about sources of drugs
【单选题】
(5)What are the tasks related to medicines almost complete!y delegated to the pharmacists now?___
A. the physical and chemical properties of medicines
B. the preparing, compounding, and dispensing of medicines
C. dosage forms of medicines available
D. the therapeutic and other uses of medicines
【单选题】
(6) What is a main unique aspect of pharmacodynamics?___
A. Pharmacodynamics is an experimental medical science
B. Pharmacodynamics is focused on the characteristics of drugs
C. Pharmacodynamics borrows freely from both the subject matter and the experimenta techniques of physiology, biochemistry, microbiology, genetics and pathology
D. Pharmacodynamics correlates the entire field of preclinical medicine
【单选题】
7) What time of history does pharmacodynamics date back to?___
A. the second half of the seventeenth century
B. the second half of the eighteenth century
C. the second half of the nineteenth century
D. the second half of the twentieth century
【单选题】
8)What does the research on pharmacodynamics focus on?___
A. study of clinical effect of drugs
B. study of the process of drugs in the body
C. study of the effect and the mechanism of drugs on the body
D. study of the correlation of the actions and effects of drugs with their chemical structure
【单选题】
(9)Which of the following is true when drugs are selected?___
A. It has to be based in part on legal reasons.
B. It has to be based in part on ethical reasons.
C. It has to be based in part on the pharmacological evaluation in man
D. It has to be based in part on the pharmacological evaluation in animals
【单选题】
(10)Why are chemotherapeutic agents useful in therapy?___
A. They stimulate or depress biochemical or physiological function in man in a sufficiently reproducible manner to provide relief of symptoms or, ideally, to alter favorably the course of disease
B. They can produce desired effects with only tolerable undesired effects
C. They have only minimal effects on man but can destroy or eliminate parasites
D. The selectivity of their effects is one of their most important characteristics
【单选题】
1)H. Mario Geysen initially used parallel synthesis as a quick way to identify which small_____ of any given large protein bound to an antibody.___
A. division
B. pieces
C. part
D. fragment
【单选题】
2)Chemists often start a combinatorial synthesis by attaching the first set of building blocks_____ to microscopic beads made of polystyrene.___
A. solid
B. inert
C. soft
D. active
【单选题】
3)The chemical reactions required to link compounds to the beads and later to detach them____ to the synthesis proces.___
A. induce complications
B. make easy
C. introduce complications
D. introduce easy
【单选题】
4)In a parallel synthesis, all the products are_____ separately in their own reaction vessels.___
A. combined
B. assembled
C. joined
D. assorted
【单选题】
(5)In many laboratories today, robots assist with the routine work of parallel synthesis, such as small___ amounts of reactive molecules into the appropriate wells.___
A. sending
B. transporting
C. delivering
D. giving
【单选题】
(6)Scientists can pull out from the mixture the beads that bear biologically active molecules and then,using sensitive detection techniques,___ the molecular makeup of the compound attached.___
A. determine
B. make sure
C. find
D. search
【单选题】
(7)Most pharmaceutical companies today continue to___ parallel synthesis. Which of the following is not appropriate to be filled in the blank?___
A. count in
B. count on
C. depend on
D. rely on
【单选题】
(8)Once they identify a promising substance, they___ make many one-at-a-time modifications to the structure.___
A. laboriously
B. hardly
C. easy
D. effectively
【单选题】
(9)Often these procedures yield a compound having acceptable___ and safety.___
A. strength
B. effect
C. potency
D. effort
【单选题】
10)In many laboratories today, robots___ the routine work of parallel synthesis.___
A. help
B. assist with
C. assist in
D. assist to
【单选题】
(1)Pharmaceutics is an interdisciplinary subject involving___
A. formulation, manufacturing, physical pharmacy, and biopharmaceutics
B. manufacturing
C. physical pharmacy
D. biopharmaceutics
【单选题】
(2)Formulation is about the design, development and evaluation of dosage forms,___
A. discovery of novel drugs
B. analytical methods
C. drug delivery systems and manufacturing process
D. dosing regimen
【单选题】
(3)Biopharmaceutics mainly studies the in vivo process of drugs and metabolites in humans, animals and tissue culture, which specifically involves___
A. absorption and distribution
B. absorption, distribution, metabolism, and excretion
C. metabolism and excretion
D. absorption and excretion
【单选题】
(4)Regarding the definition of bioavailability(BA), BA is related to___
A. total plasma drug concentration only
B. unbound drug concentration in the plasma
C. unbound drug concentration at the target site
D. total plasma drug concentration, and the administered drug dose
【单选题】
(5)Plasma drug concentration is affected by following factors such as___
A. rate of absorption
B. rate and extent of distribution
C. rate ofeli Imination
D. all ofabove
【单选题】
6)Which of the following routes of administration will involve the absorption of drugs?___
A. i.v.injection
B. i.v.infusion
C. Subcutaneous injection, transdermal and oral
D. None of above
【单选题】
(7)Which of the following factors may influence the time course of a drug in the plasma and hence at its site of action?___
A. Food
B. Disease state
C. Route of administration
D. All of above
【单选题】
(8)Please identify the potential biological barriers for an orally administered tablet to be absorbed into the systemic circulation___
A. Sk d dermis
B. Gastrointestinal epithelium
C. Oral mucosal membrane
D. All of above
【单选题】
(9) Given the same administration dose, which of the following will likely result in varying bioavailabilities for the same drug administered to the same person? ___
A. tablets (p.o. )vs. solutions(p0.)
B. solutions for injection(i v )vs oral solutions(p0.)
C. coated tablets (p.0. )vs hard gelatin capsules(p0.)
D. All ofabove
【单选题】
(10)Which of the following statements is true?___
A. Bioavailability is only related to the administered dose and the total drug concentration in the blood circulation.
B. Plasma protein binding does not affect the bioavailability of a specific drug.
C. A given drug in different dosage forms may show differences in bioavailability if given by the same route.
D. Biopharmaceutical studies do not involve animal experiment.
【判断题】
Much of our present physiological knowledge has been found from the experiments and studies on human beings.
【判断题】
Living cells break down glucose and fats to provide energy for other activities, which is called.
【判断题】
The right atriapumps deoxygenated blood to the lungs where it absorbs oxygen from the air.
【判断题】
The nervous system uses electrical signals to transmit information very rapidly to specific cells.
【判断题】
With the level of sodium increasing extracelular fruid. the cardiac muscle cells become too excitable and may contract.