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Which of the electrical properties listed will always be the

题目
单选题
Which of the electrical properties listed will always be the same for each component in a parallel circuit?（）
A

Impedance

B

Current

C

Resistance

D

Voltage

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相似问题和答案

第1题：

In Trial 9, the electrical force exerted by Sphere Y on Sphere X and the electrical force exerted by Sphere X on Sphere Y were exerted in which direction(s)?

A.east； east

B.east； west

C.west； west

D.west； east


正确答案：B

第2题：

Loran-C is which type of system ________．

A.Reflected electron

B.Electrical radiation

C.Quarterpoint electrical navigation

D.Hyperbolic radio navigation


正确答案：D

第3题：

You are the administrator of several SQL Server 2000 computers. A data Transformation Services (DTS) package uses native OLE DB providers to transfer data between the servers. Connection details for the servers are specified in .udl files. The .udl files are frequently updated as connection details change.

You want to distribute the DTS package as a file to developers in your company. You want to make sure connection details are available to developers who receive the DTS package.

Which two tasks should you perform? (Each correct answer presents part of the solution. Choose two)

A．Enable the Always read properties from UDL file option in the Connection Properties dialog box.

B．Disable the Always read properties from UDL file option in the Connection Properties dialog box.

C．Delete the .udl files and store connection details in the registry by using system data source names.

D．Delete the .udl files, and store connection details in the registry by using user data source names.

E．Make the .udl files available on a network share.


正确答案：AE
解析：Explanation:
A: To make the connection information available for the developers we must enable the Always read properties from UDL file option.

E: We provide the developers with access to the .udl file by placing the .udl files in a network share and setting appropriate share and NTFS permissions.

Note: In SQL Server 2000, DTS packages can use Microsoft Data Link (.udl) files to create OLE DB connections and resolve the connections in run time. With this feature we can encapsulate the connection properties from a DTS package into a separate file and can edit the connection string in a .udl file instead of the connection properties in a DTS package in situations where connection information such as the server name, login, or even the OLE DB provider may change.

When specifying a data link connection, we must first specify whether to load an existing .udl file or create a data link to save with DTS Designer. If we want to use a .udl file rather than saving the data link with DTS Designer, we can create one either from Windows Explorer or during the data link configuration process in DTS Designer. We must then click Microsoft Data Link in the Data Source list of the Connection Properties dialog box and check the Always read properties from UDL file check box. In this scenario, the .udl file is already specified.

Incorrect Answers:
B: If we clear the Always read properties from UDL file option in the Connection Properties dialog box, we would have to edit the connection properties through the Data Transformation Services (DTS) package. This would increase administrative effort.

C: We cannot delete the .udl files and instead store the connection details in the registry by using system data source names as the connection details change regularly.

D: We cannot delete the .udl files, and instead store connection details in the registry by using user data source names as the connection details change regularly.

第4题：

单选题
Which of the listed devices is used to measure pressure and convert it to an electrical signal?（）
A

Transducer

B

Reducer

C

Transformer

D

Rectifier


正确答案： C
解析： 暂无解析

第5题：

单选题
mary would like to display a collapsed section on her video catalog form, she has created a section buy when she display the form in the client the section always opens expanded. which one of the following should mary do to collapse the section?（）
A

 nothing. Sections always open expanded 

B

 modify the section default properties to collapsed 

C

 modify the form propenties to display all sections collapsed 

D

 modify the section opened for reading property to auto-collapse 


正确答案： A
解析： 暂无解析

第6题：

Which of the listed devices is used to measure pressure and convert it to an electrical signal?

A.Transducer

B.Reducer

C.Transformer

D.Rectifier


正确答案：A

第7题：

mary would like to display a collapsed section on her video catalog form, she has created a section buy when she display the form in the client the section always opens expanded. which one of the following should mary do to collapse the section?（）

  • A、 nothing. Sections always open expanded 
  • B、 modify the section default properties to collapsed 
  • C、 modify the form propenties to display all sections collapsed 
  • D、 modify the section opened for reading property to auto-collapse 

正确答案:D

第8题：

Which of the units listed is used to combust waste in the engine room?

A.Boiler

B.Incinerator

C.Generator


正确答案：B

第9题：

单选题
Which of the listed pumps is NOT a positive displacement pump?（）
A

Centrifugal

B

Reciprocating

C

Gear

D

Rotary


正确答案： A
解析： 暂无解析

第10题：

单选题
If a CO2 fire extinguisher is not readily available, which of the listed fire extinguishers would be best suited to combat a small electrical fire in a switchboard?（）
A

Dry chemical

B

Halon

C

Low velocity fog

D

Steam


正确答案： B
解析： 暂无解析

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