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【多选题】
推土机在坡道上停机时,应___。
A. 将变速杆挂低速档
B. 接合主离合器
C. 操纵人员不得离开
D. 锁住制动踏板
E. 将履带或轮胎楔住
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答案
ABDE
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相关试题
【多选题】
单斗挖掘机的工作装置可分为___作业。
A. 反铲
B. 拉铲
C. 斜铲
D. 正铲
E. 抓斗
【多选题】
打桩机工作时,严禁___或( )等动作同时进行。
A. 吊桩
B. 回转
C. 吊锺
D. 行走
E. 吊道桩器
【多选题】
平杆式柴油锤由___等组成。
A. 活塞
B. 平杆
C. 缸锤
D. 顶横梁
E. 燃油系统
【多选题】
打桩机类型应根据___施工工艺等综合考虑选择。
A. 桩长
B. 桩径
C. 地质条件
D. 桩的类型
E. 桩的型号
【多选题】
打桩机操作司机必须经过___,并经有关部门后,发给。方能。严禁无证人员操作打桩机。(按顺序填写)
A. 单独操作
B. 专业培训
C. 考核批准
D. 高中文化
E. 合格证件
【多选题】
钢筋调直机作用为___。
A. 调直
B. 拉伸
C. 切断
D. 输送
E. 消除氧化皮
【多选题】
下列哪些设备是建筑施工中最为常见的垂直运输设备?___
A. 塔式起重机
B. 搅拌机
C. 施工升降机
D. 打桩机
E. 龙门架及井架物料提升机
【多选题】
塔式起重机金属结构基础部件包括___。
A. 底架
B. 塔身
C. 平衡臂
D. 卷扬机
E. 转台
【多选题】
塔式起重机最基本的工作机构包括___。
A. 起升机构
B. 限位机构
C. 回转机构
D. 行走机构
E. 变幅机构
【多选题】
力矩限制器可安装在___。
A. 塔帽
B. 起重臂根部
C. 底架
D. 吊钩
E. 起重臂端部
【多选题】
对小车变幅的塔式起重机,设置幅度限制器时,应设置___。
A. 最小幅度限位器
B. 小车行程限位开关
C. 终端缓冲装置
D. 防止小车出轨装置
E. 防止臂架反弹后倾装置
【多选题】
下列哪些是塔式起重机拆装工艺编制的主要依据?___
A. 国家有关塔式起重机的技术标准和规范,规程
B. 随机的使用、拆装说明书
C. 随机的整机、部件的装配图、电气原理及接线图
D. 已有的拆装工艺及过去拆装作业中积累的技术资料
E. 其他单位的拆装工艺或有关资料
【多选题】
塔机爬升过程中,禁止进行下列哪些动作?___
A. 起升
B. 变幅
C. 回转
D. 起升和回转
E. 起升和变幅
【多选题】
塔机日常检查和使用前的检查的主要内容包括___。
A. 基础
B. 主要部位的连接螺栓
C. 金属结构和外观结构
D. 安全装置
E. 配电箱和电源开关
【多选题】
起重机的拆装作业应在白天进行,当遇有___天气时应停止作业。
A. 大风
B. 潮湿
C. 浓雾
D. 雨雪
E. 高温
【多选题】
塔式起重机上必备的安全装置有___。
A. 起重量限制器
B. 力矩限制器
C. 起升高度限位器
D. 回转限位器
E. 幅度限制器
【多选题】
塔式起重机力矩限制器起作用时,允许___。
A. 载荷向臂端方向运行
B. 载荷向臂根方向运行
C. 吊钩上升
D. 吊钩下降
E. 载荷自由下降
【多选题】
操作塔式起重机严禁___。
A. 拔桩
B. 斜拉、斜吊
C. 顶升时回转
D. 抬吊同一重物
E. 提升重物自由下降
【多选题】
施工升降机按驱动方式分类可分为___。
A. SC型
B. 单柱型
C. 双柱型
D. SH型
E. SS型
【多选题】
施工升降机主要由___组成。
A. 金属结构
B. 驱动机构
C. 附着
D. 安全保护装置
E. 电气控制系统
【多选题】
下列___属于施工升降机的金属结构。
A. 吊笼
B. 导轨架
C. 天轮架及小起重机构
D. 电动机
E. 对(配)重
【多选题】
施工升降机标准节的截面可以采取下列___形状。
A. 矩形
B. 菱形
C. 正方形
D. 三角形
E. 圆形
【多选题】
高架提升机应设置下列哪些安全装置?___
A. 安全停靠装置
B. 断绳保护装置
C. 通讯装置
D. 下极限限位器
E. 缓冲器
【多选题】
吊钩禁止补焊,下列哪些情况应予报废?___
A. 用20倍放大镜观察表面有裂纹及破口
B. 挂绳处断面磨损量超过原高的10%
C. 心轴磨损量超过其直径的5%
D. 表面有碰损
E. 开口度比原尺寸增加15%
【多选题】
塔机力矩限制器起作用时,允许采取下列哪些运行方式?___
A. 载荷向臂端方向运行
B. 载荷向臂根方向运行
C. 吊钩上升
D. 吊钩下降
E. 载荷自由下降
【多选题】
物料提升机的稳定性能主要取决于物料提升机的下列哪些部件?___
A. 基础
B. 缆风绳
C. 附墙架
D. 标准节
E. 地锚
【多选题】
塔式起重机司机患有下列哪些疾病和生理缺陷的不能做司机工作?___
A. 色盲
B. 心脏病
C. 断指
D. 癫痫
E. 矫正视力低于5.0(1.0)
【多选题】
钢丝绳出现下列哪些情况时必须报废和更新?___
A. 钢丝绳断丝现象严重
B. 断丝的局部聚集
C. 当钢丝磨损或锈蚀严重,钢丝的直径减小达到其直径的10%时
D. 钢丝绳失去正常状态,产生严重变形时
E. 当钢丝磨损或锈蚀严重,钢丝的直径减小达到其直径的40%时
【多选题】
滑轮达到下列任意一个条件时即应报废?___
A. 轮缘破损
B. 槽底磨损量超过相应钢丝绳直径的25%
C. 槽底壁厚磨损达原壁厚的20%
D. 转动不灵活
E. 有裂纹
【多选题】
焊接或者切割的基本特点是___。
A. 高温
B. 高压
C. 易燃
D. 易爆
E. 易烫伤
【多选题】
施工现场高出建筑物的___设备应有防风、防雷电的措施。
A. 塔吊
B. 施工升降机
C. 井架物料提升机
D. 脚手架
E. 施工作业面
【多选题】
锅炉的主要受压部件有___。
A. 锅筒
B. 水冷壁
C. 集箱
D. 对流管束
E. 烟火管
【多选题】
锅炉的其他部件主要有___。
A. 对流管束
B. 炉墙
C. 炉排
D. 烟火管
E. 锅炉钢架
【多选题】
锅炉的附属设备除了过热器、省煤器、空气预热器、锅炉通风设备、给水设备、除尘器外还有___。
A. 上煤出渣系统
B. 水质软化设备
C. 常用钠离子交换器
D. 附属管道
E. 对流管束
【多选题】
立式锅炉主要有:___。
A. 立式横水管锅炉
B. 立式弯水管锅炉
C. 单火筒
D. 立式直水管锅炉
E. 双火筒
【多选题】
下列属于第三类压力容器的有___。
A. 高压容器
B. 存贮毒性程度为极度和高度危害介质的中压容器
C. 高压、中压管壳式余热锅炉
D. 容积大于5m3的低温液体储存容顺
E. 容积大于等于50m3的球形储罐
【多选题】
下列属于第二类压力容器的有___。
A. 中压容器
B. 移动式压力容器
C. 存贮毒性程度为极度和高度危害介质的低压容器
D. 中压搪玻璃压力容器
E. 低压管壳式余热锅炉
【多选题】
按容器在生产工艺过程中的作用原理可分为___。
A. 反应容器
B. 有毒介质容器
C. 储存容器
D. 换热容器
E. 分离容器
【多选题】
低压容器结构形式中属特殊形状的有___。
A. 球形容器
B. 方形
C. 椭球形
D. 半圆筒形
E. 半球形
【多选题】
锅炉与压力容器的安全附件是为了使锅炉与压力容器能够安全运行而装在设备上的附属装置。它包括___等。
A. 防振圈
B. 压力表
C. 水位计
D. 安全泄压装置
E. 水位警报装置
推荐试题
【单选题】
___属于人工智能的应用。
A. :程序设计
B. :指纹识别
C. :社区聊天
D. :数据统计
【单选题】
),并了解他们考虑的一些问题。这些问题一般不包括___。
A. :他们对将要讨论的事项了解多少
B. :他们需要什么,又想要知道什么
C. :他们的艺术水平和欣赏能力如何
D. :他们将如何利用分析展示的信息
【单选题】
信息处理技术员资格考试的试卷包括信息处理基础知识、计算机基础知识、法律法规知识、专业英语、办公软件使用技能五个方面。某次考试后,对这五个方面分别统计了各考生的得分率以及全国的平均得分率。为了直观展现每个考生在各个方面的水平以及该考生的整体水平,并与全国平均水平进行比较,宜采用___。
A. :直方图
B. :圆饼图
C. :折线图
D. :雷达图
【单选题】
The___ is the primary device for entering information into the computer
A. :disk
B. :printer
C. :keyboard
D. :memory
【单选题】
___ system let you run more tlian one program at a time
A. : Application
B. :Software
C. : Real time
D. :Multitask
【单选题】
Small business may use___ for word processing
A. : microcomputers
B. :industrial computers
C. : mainframe computers
D. :supercomputers
【单选题】
Once you've made the Internet connection, you can send___ to any of computer user all around the w orld
A. :e-mail
B. :WWW
C. :ccc
D. :web station
【单选题】
Which statement about zone-based firewall configuration is true?___
A. You can assign an interface to more than one zone
B. Traffic is implicitly denied by de fault between interfaces in the same zone
C. The zone must be configured before it can be a ssigned
D. Traffic that is destined to or sourced from the Self zone is de nied by default
【单选题】
Refer to the exhibit line in this configuration prevents the help Desk user from modifying the interface configuration.___
A. Privilege exec level 10 interface
B. Privilege exec level 9 configure terminal
C. Privilege exec level 7 show start-up
D. Username HelpDesk privilege 6 password help
【单选题】
You have been tasked with blocking user access to websites that violate company policy, but the sites use dynamic IP addresses. What is the best practice for URl filtering to solve the problem?___
A. Enable URL filtering and use URL categorization to block the we bsites that violate company
B. Enable URL filtering and create a blacklist to block the websites that violate company policy
C. Enable URL filtering and create a whitelist to block the websites that violate company policy
D.
E. nable URL filtering and use URL categorization to allow only the websites that company policy allows users to access.
【单选题】
Within an 802. 1x-enabled network with the auth Fail feature configured, when does a switch port get placed into a restricted VLAN?___
A. When a conected client fails to authenticate after a certain number of attempts.
B. if a connected client does not support 802. 1x
C. when AAA new-model is ena bled
D. after a connected client exceeds a specified idle time
E. when 802. 1x is not globally enabled on the Cisco Catalyst switch
【单选题】
Which type of attack does a proxy firewall protect against ?___
A. cross-site scripting attack
B. worm traffic
C. port scanning
D. DDoS attacks
【单选题】
When an administrator initiates a device wipe command from the ISE, what is the immediate effect?___
A. It requests the administrator to choose between erasing all device data or only managed corporate data.
B. It requests the administrator to enter the device pin or password before proceeding with the operation
C. It notifies the device user and proceeds with the erase operation
D. It immediately erases all data on the device
【单选题】
What is a valid implicit permit rule for traffic that is traversing the ASa firewall?___
A. ARPs in both directions are permitted in transparent mode only
B. Unicast IPv4 traffic from a higher security interface to a lower security interface is permittee in routed mode only.
C. Unicast IPv6 traffic from a higher security interface to a lower security interface is permitted in transparent mode only.
D. Only BPDUs from a higher security interface to a lower secur ity interface are permitted in transparent mode.
E. Only BPDUs from a higher security interface to a lower secur ity interface are permitted in routed mode
【单选题】
A specific URL has been identified as containing malware. What action can you take to block users from accidentally visiting the URl and becoming infected with malware ?___
A. Enable URL filtering on the perimeter router and add the URls you want to block to the router's local URL list
B. Enable URL filtering on the perimeter firewall and add the URls you want to allow to the router's local URL list.
C. Enable URL filtering on the perimeter router and add the URls you want to allow to the firewall's local URL list
D. Create a blacklist that contains the URl you want to block and activate the blacklist on the perimeter rout
E. Create a whitelist that contains the URLs you want to allow and activate the whitelist on the perimeter router.
【单选题】
How does PEAP protect the EAP exchange ?___
A. It encrypts the exchange using the server certificate
B. It encrypts the exchange using the client certificate
C. It validates the server-supplied certificate,and then encrypts the exchange using the client certificate
D. It validates the client-supplied certificate,and then encrypts the excha nge using the server certificate
【单选题】
Which feature of the Cisco Email Security Appliance can mitigate the impact of snowshoe spam and sophisticated phishing attacks?___
A. contextual analysis
B. holistic understanding of threats
C. graymail management and filtering
D. signature-based IPS
【单选题】
Refer to the exhibit【nat (inside,outside)dunamic interface】 Which translation technique does this configuration result in?___
A. DynamIc PAT
B. Dynamic NAT
C. Twice NAT
D. Static NAT
【单选题】
Refer to the exhibit which are repre sents the data center?___
A. A
B. B
C. C
D. D
【单选题】
While trouble shooting site-to-site VPN, you issued the show crypto isakmp sa command. What does the given output show?___
A. IKE Phase 1 main mode was created on 10.1.1.5, but it failed to negotiate with 10.10 10.2
B. IKE Phase 1 main mode has successfully negotiated between 10.1.1.5 and 10.10..
C. IKE Phase 1 aggressive mode was created on 10.1.1.5, but it failed to negotiate with
【单选题】
Refer to the exhibit All ports on switch 1 have a primary vLan of 300 Which devices can host 1 reach?___
A. host 2
B. server
C. host 4
D. other devices within VLAN303
【单选题】
Which option is the cloud-based security service from Cisco the provides URL filtering, web browsing content security, and roaming user protection?___
A. Cloud Web service
B. Cloud Advanced Malware Protection
C. Cloud We b Security
D. Cloud Web Protection
【单选题】
How can you detect a false negative on an IPS?___
A. View the alert on the ips
B. Review the ips log
C. Review the is console
D. Use a third- party system to perform penetration testing.
E. Use a third- party to audit the next generation firewall rules
【单选题】
If a switch port goes directly into a blocked state only when a superior BPDU is received, what mechanism must be in use?___
A. STP BPDU guard
B. Loop guard
C. EtherChannel guard
D. STP Root guard
【单选题】
what improvement does EAP-FASTv2 provide over EAP-FAST? ___
A. It allows multiple credentials to be passed in a single EAP exchange.
B. It supports more secure encryption protocols
C. It allows faster authentication by using fewer packets.
D. It addresses security vulnerabilities found in the original protocol
【单选题】
When users login to the Client less Ssl Vpn using https://209.165.201.2/test ,which group policy will be applied?___
A. test
B. clientless
C. sales
D. DfitGrp Policy
E. Default RAGroup
F. Default WEB VPN
G. roup
【单选题】
Which user authentication method is used when users login to the Clientless SSLVPN portal using https://209.165.201.2/test?___
A. AAA with LOCAL database
B. AAA with RADIUS server
C. Certificate
D. :Both Certificate and aaa with LoCAL database
E. Both Certificate and AAA with RADIUS server
【单选题】
What' s the technology that you can use to prevent non malicious program to runin the computer that is disconnected from the network?___
A. Firewall
B. Sofware Antivirus
C. Network IPS
D. Host IPS
【单选题】
Which statement about the communication between interfaces on the same security level is true?___
A. Interfaces on the same security level require additional configuration to permit interinterface communication
B. Configuring interfaces on the same security level can cause asymmetric routing
C. All traffic is allowed by default between interfaces on the same security level
D. You can configure only one interface on a n individual security level
【单选题】
Which product can be used to provide application layer protection for tcp port 25 traffic?___
A. ESA
B. CWS
C. WSA
D. ASA
【单选题】
which iPS mode is less secure than other options but allows optimal network through put ?___
A. inline mode
B. inline-bypass mode
C. transparent mode
D. Promiscuous mode
【单选题】
Which feature of the Cisco Email security Appliance can mitigate the impact of snowshoe spam and sophisticated phishing attack?___
A. reputation based filtering
B. signature based IPS
C. contextual analysis
D. graymail management and filtering
【单选题】
Which type of social-engineering attack uses normal tele phone service as the attack vector?___
A. smishing
B. dialing
C. phishing
D. vishing
【单选题】
Which quantifiable item should you consider when you organization adopts new technologies?___
A. exploits
B. vulnerability
C. threat
D. Risk
【单选题】
Referencing the ClA model, in which scenario is a hash- only function most appropriate ?___
A. securing data at rest
B. securing real-time traffic
C. securing data in files
D. securing wireless transmissions
【单选题】
Which ports must be open between a aaa server and a microsoft server to permit Active Directory authentications?___
A. 445 and 389
B. 888 and 3389
C. 636 and 4445
D. 363 and 983
【单选题】
Refer to the exhibit for which reason is the tunnel unable to pass traffic___
A. the tunnel is failing to receive traffic from the remote peer
B. the local peer is unable to encrypt the traffic
C. the ip address of the remote peer is incorrect
D. UDP port 500 is blocked
【单选题】
Which type of attack can exploit design flaws in the implementation of an application without___
A. DHCP starvation attacks
B. low-rate dos attacks
C. application DDos flood attacks
D. application DDoS flood attacks
E. volume-based DDoS attacks
【单选题】
How can you protect CDP from reconnaissance attacks?___
A. Enable dynamic ARP inspection on all untrusted ports.
B. Enable dot1x on all ports that are connected to other switches.
C.
D. isable CDP on ports connected to endpoints.
【单选题】
Which type of attack can exploit design flaws in the implementation of an application without ?___
A. DHCP starvation attacks
B. low-rate dos attacks
C. application DDos flood attacks
D. application DDoS flood attacks
E. volume-based DDoS attacks
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