【判断题】
可燃气体与空气形成混合物遇到明火就爆炸
A. 对
B. 错
查看试卷,进入试卷练习
微信扫一扫,开始刷题
答案
B
解析
暂无解析
相关试题
【判断题】
单位应当
A. 对
B. 错
【判断题】
生产经营单位可以以货币或者其他物品替代应当按规定配备的劳动防护用品
A. 对
B. 错
【判断题】
佩戴空气呼吸器作业时,当空气呼吸器罐内压力低于5MPa.发出报警声时,必须撤离危险区
A. 对
B. 错
【判断题】
实行承包、租赁或者委托经营、管理时消防车通道、涉及公共消防安全的旒散设施和其他建筑消防设施应当由产权单位或者委托管理的单位统一管理
A. 对
B. 错
【判断题】
阻聚剂有毒
A. 对
B. 错
【判断题】
乙炔加氢反应是吸热反应,因此裂解气进入反应器前需要用低压蒸汽加热
A. 对
B. 错
【判断题】
滤毒罐存放有效期为2年,超过期限要重新鉴定
A. 对
B. 错
【判断题】
压力容器运行操作时应保持平稳,禁止超负荷、骤然升降温度或压力
A. 对
B. 错
【判断题】
可燃烧气体或蒸汽的危险程度与它们的爆炸下限成正比
A. 对
B. 错
【判断题】
进入气体分析不合格的容器内作业应佩戴隔绝式呼吸保护装备
A. 对
B. 错
【判断题】
硫化氢是强烈的神经毒物,有臭鸡蛋气味,臭味的增强与浓度的升高成正比
A. 对
B. 错
【判断题】
如果误食了甲醛要立刻吐出来,在医生到达之前每隔15min喝一杯含有一茶匙小苏打的水
A. 对
B. 错
【判断题】
应急预案的编制可以应急准备代替应急保障措施,也能满足本地区、本部门、本单位的应急工作要求
A. 对
B. 错
【判断题】
除矿山、建筑施工单位和易燃易爆物品、危险化学品、放射性物品等危险物品的生产、经营、储存单位和中型规模以上的其他生产单位以外,其他生产经营单位应当
A. 对
B. 错
【判断题】
裂解炉烧嘴结焦或燃料气带液都可能造成烧嘴烧蚀
A. 对
B. 错
【判断题】
氮氧化物主要来源于石化燃料的燃烧
A. 对
B. 错
【判断题】
工作人员进入反应器内部之前,应分析氧含量达19.5%~23.5%,有毒有害气体含量符合标准,设备外部有专人监护,并要求监护人与之保持经常的联系
A. 对
B. 错
【判断题】
佩戴空气呼吸器作业时,当空气呼吸器罐内压力低于2MPa,必须撤离危险区
A. 对
B. 错
【判断题】
生产经营单位制定的应急预案应当至少每三年修订一次,预案修订情况应有记录并归档
A. 对
B. 错
【判断题】
高心泵产生汽蚀时,除过済部件表面受到机械性质的破坏财以外,如果液体汽化时放出的气体有腐蚀作用.还会产生一定的化学性质破坏
A. 对
B. 错
【判断题】
有些裂解工艺产生的单体会自聚或爆炸,需要向生产的单体中加阻聚剂或稀释剂等
A. 对
B. 错
【判断题】
生产经营单位未制定应急預案,导致事故救援不力或者造成严重后果的由县级以上安全生产监督管理部门依照有关法律、法规和规章的规定,责令停停产停业整顿,并依法给予行政处罚
A. 对
B. 错
【判断题】
发生人员中毒、窒息的紧急情况抢救人员必须佩戴隔离式防护面具进入受限空间并至少有1人在受限空间外部负责联络工作
A. 对
B. 错
【判断题】
装置区域机泵冷却水属于含油汚水
A. 对
B. 错
【判断题】
乙烯装置各系统在投用前要仔细检查导淋阀、安全阀的旁路是否已全部关闭
A. 对
B. 错
【判断题】
打扫卫生时可以用水冲洗电机等带电设备
A. 对
B. 错
【判断题】
从业人员在作业过程中应当严格遵守本单位的安全生产规童制度服从管理正确做蔵和使用劳动防护用品
A. 对
B. 错
【判断题】
棉尘病属于尘肺病
A. 对
B. 错
【判断题】
灭火的基本方法包括窒息法、隔离法、冷却法和抑制法
A. 对
B. 错
【判断题】
废热锅炉进行水力清焦时应隔离该区域防止无关人员被高压水和飞溅的焦粒伤害
A. 对
B. 错
【判断题】
氢气的爆炸极限为0-100%
A. 对
B. 错
【判断题】
裂解炉燃料气系统气密前.必须确认每一个安全阀都已经过调校并正常安装
A. 对
B. 错
【判断题】
喘振
A. 对
B. 错
【判断题】
液氮有腐蚀性.可灼伤皮肤
A. 对
B. 错
【判断题】
环墳危害极大的"酸雨"中主要成分为二氧化碳
A. 对
B. 错
【判断题】
防护服包括帽、衣、裤、围裙、套裙、鞋罩等有防止或减轻热辐射和化学汚染机体的作用
A. 对
B. 错
【判断题】
转动设备的轴封装匿其作用是防止介质从设畚内部沿轴向外部泄漏
A. 对
B. 错
【判断题】
应急预案中生产经营单位概况主要包括单位地址、从业人数、隶属关系、主要原材料、主要产品、产量等内容以及周边重大危险源、重要设施、目标、场所和周边布局情况,必要时,可附平面图进行说明
A. 对
B. 错
【判断题】
压缩机透平暖机不足将导致汽轮机振动加剧
A. 对
B. 错
【判断题】
参加应急预案评审人员与所评审预案的生产经营单位有利害关系,可以参加
A. 对
B. 错
推荐试题
【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
【单选题】
Which option is a key security compone nt of and MDM deployment ?___
A. using network-specific installer packages
B. using an application tunnel by default
C. using self-signed certificates to validate the server
D. using MS-CHAPv2 as the primary
E. AP method
【单选题】
Which Firepower Management Center feature detects and block exploits and hack attempts?___
A. Content blocker
B. file control
C. intrusion prevention
D. advanced malware protection
【单选题】
hich description of the nonsecret numbers that are used to start a Diffie- Hellman exchange is ture?___
A. They are preconfigured prime integers.
B. They are large pseudorandom numbers.
C. They are very small numbers chosen from a table of known valuses
D. They are numeric values extracted from ha shed system hostnames
【多选题】
Which two characteristics of an application layer firewall are true?___
A. provides stateful firewal functionality
B. has low processor usage
C. provides protection for multiple applications
D. provides rever se proxy services
E. is immune to URL manipulation
【多选题】
Which two devices are components of the BYOD architectural framework?___
A. Nexus 7010 switch
B. Cisco 3945 Router
C. Identify Services Engine
D. Wireless Access oints
E. Prime Infrastructure
【多选题】
Which two actions can a zone based firewall take when looking at traffic? ___
A. forward
B. inspect
C. drop
D. broadcast
E. filter
【多选题】
n which two situations should you use in-band management?___
A. when management applications need concurrent access to the device
B. when you require administrator access from multiple locations
C. when a network device fails to forward packets
D. when you require ROMMON access
E. when the control plane fails to respond
【多选题】
What are two ways to prevent eavesdropping when you perform device management tasks?___
A. Use an SSH connection.
B. Use SNMPv3
C. Use out-of-band management
D. Use SNMP
E. Use in-band management
【多选题】
Which two features are commonly used CoPP and CPPr to protect the control plane? ___
A. QoS
B. traffic classification
C. access lists
D. policy maps
E. class maps
F. Cisco Express Forwarding
【多选题】
Which four tunne ling prot ocols are enabled in the Dfit GrpPolicy group policy ?___
A. Clientless SSL VPN
B. SSL VPN Client
C. PPTP
D. L2TP/IPsec
E. IPsec IKEv1
F. IPsec IKEv2
【多选题】
Which two statements regarding the aSA VPN configurations are correct?___
A. The asa has a certificate issued by an external certificate authority associated to the ASDM TrustPoint1
B. The Default WEBVPNGroup Connection Profile is using the aaa with RADIUS server method
C. The Inside-srvbook mark references the https://192.168.1.2url
D. Only Clientless SSL VPN access is allowed with the Sales group policy
E. Any Connect, IPSec IKEv1, and IPSec IKEv2 VPN access is enabled on the outside interface
F. The Inside -SRV bookmark has not been applied to the Sales group policy
【多选题】
Which three ESP fields can be encrypted during transmission?___
A. Security Parameter Index
B. Sequence Number
C. MAC Address
D. Padding
E. Pad length
F. Next Header
【多选题】
.Which three statements de scribe DHCP spoofing attacks?___
A. They can modify traffic in transit.
B. They are used to perform man- in-the-middle attacks
C. They use ARP poisoning
D. They can access most network devices
E. They protect the ide ntity of the attacker by masking the DHCP address.
F. They are can physically modify the network gateway.
【多选题】
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
【多选题】
In which two situations should you use in band management? ___
A. when the control plane fails to respond
B. when you require administrator access from multiple locations
C. when you require ROMMON access.
D. where a network device fails to forward packets
E. when multiple ma nagement applications need concument access to the device.
【多选题】
Which two features are supported in a VRF-aware softwar infrastructure before VRF-lite?___
A. multicast
B. fair queuing
C. WCCP
D.
E. IGRP
【多选题】
.Which loS command do you enter to test authentication again a AAA server?___
A. dialer aaa suffix <suffix> password <password>
B. ppp authentication chap pap test
C. test aaa-server authentication dialer group user name <user> password <password>
D. aaa authentication enable default test group tacases
【多选题】
Which two statements about the self zone on a cisco Xone based policy firewall are true?___
A. Multiple interfaces can be assigned to the self zone
B. it supports stateful inspections for multicast traffic
C. zone pairs that include the self zone apply to traffic transiting the device.
D. it can be either the source zone or the destination zone
E. traffic entering the self zone must match a rule
【多选题】
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】
Which type of firewall can server as the interme diary between a client and a server ?___
A. Stateless firewall
B. application firewall
C. proxy firewall
D. personal firewall
【单选题】
What is the highest security level that can be configured for an interface on an ASA?___
A. 0
B. 50
C. 10
D. 200
【单选题】
Which term refers to the electromagnetic interference that can radiate from network cables?___
A. Gaussian distributions
B. Doppler waves
C. emanations
D. multimode distortion
【单选题】
How does a zone pair handle traffic if the policy de fination of the zone pair is missing?___
A. It inspects all traffic.
B. It drops all traffic.
C. It permits all traffic wihtout logging
D. It permits and logs all traffic
【单选题】
default how does a zone based firewall handle traffic to add from the self zone?___
A. It permits all traffic without inspection
B. It inspects all traffic to determine how it is handled
C. It permits all traffic after inspection
D. It frops all traffic
【单选题】
Which command should beused to ena ble AAA Authentication to determine if a user can access the privilege command level?___
A. aaa authentication enable local
B. aaa authentication enable level=
C. aaa authentication enable method de fault
D. aaa authentication enable defa ult local
【单选题】
On an ASA, the policy indicates that traffic should not be translated is often referred to as which of the following?___
A. NAT zero
B. NAT forward
C. NAT nul
D. NAT allow
【单选题】
Which protocol offers data Integrity encryption, authentication, and anti-replay functions for IPSec VPN?___
A. ESP protocol
B. IKEv3 Protocol
C. AH protoco
D. IKEv1 Protocol
【单选题】
Which component offers a variety of security Solution, including firwall, IF Antivirus and antiphishing features?___
A. Cisco loS router
B. Cisco ASA 5500 Ser ies security appliance
C. Cisco ASA 5500 X series Next Gen Security appliance
D. Cisco 4200 series IPS appliance
【单选题】
Refer to the exhibit, A Network Secur ity administrator check the ASa firewall NAT policy table rith show nat command, which statement is fails?___
A. There are only reverse translation matches for the REAL SERvER object
B. First policy in the Section 1 is a dynamic nat entry defined in the object configuration
C. NAT policy in section 2 is static entry de fined in the object configuration
D. Translation in Section 3 used when a connection does not matches any entries in first two sections
【单选题】
What is true of an aSa in transparent mode ?___
A. It supports OSPF
B. It requires an IP address for each interface
C. It requires a management IP address
D. It allows the use of dynamic NaT
【单选题】
What is the effect of the ip scp server enable command?___
A. It references an access list that allows specific SCP servers
B. It allows the router to initiate requests to an SCP server
C. It allows the router to become an SCP server
D. It adds SCP to the list of allowed copy functions
【单选题】
How can you mitigate attacks in which the attacker attaches more than one vLan tag to a packet?___
A. Assign an access VLAN to every active port on the switch
B. Disable Ether Channel on the switch
C. Explicitly identity each VLAN allowed across the trunk
D.
E. nable transparent VTP on the switch
【单选题】
Which technology can you implement to centrally mitigate potential threats when users on your network download files that might be malicious?___
A. Enable file-reputation services to inspect all files that traverse the company network and block files with low reputation scores
B. Verify that the compa ny IpS blocks all known malicious website
C. Verity that antivirus software is installed and up to date for all users on your network
D. Implement URL filtering on the perimeter firewall
【单选题】
What is the most common implementation of PaT in a standard networked environment?___
A. configuring multiple external hosts to join the self zo ne and to communicate with one another
B. configuring multiple internal hosts to communicate outside of the network using the outside interface IP address
C. configuring multiple internal hosts to communicate outside of the network by using the inside interface IP address
D. configuring an any any rule to enable external hosts to communicate inside the network
【单选题】
Which component of a bYod architecture provides aAa services for endpoint access ?___
A. Integrated Services Router
B. access point
C. ASA
D. Identity Services
E. ngine