更多"The single acting cylinder is the s"的相关试题:
[单项选择]In a single acting, four-stroke/cycle diesel engine, the power impulse in an individual cylinder occurs （）
A. once every crankshaft revolution
B. once every two crankshaft revolutions
C. once every piston stroke
D. twice every piston stroke
[单项选择]In a single acting, two-stroke/cycle, diesel generator engine, the power impulse in an individual cylinder occurs （）
A. once every crankshaft revolution
B. once every two crankshaft revolutions
C. once every piston stroke
D. twice every piston stoke
[单项选择]The usual number of single-acting pistons used in a variable stroke axial-piston pump is （）.
A. 3 or 5
B. 5 or 7
C. 7 or 9
D. 9 or 11
[单项选择]The force acting on a single cargo runner which is vertically lifting or lowering a load is greatest when（）.
A. decelerating when lowering the load
B. decelerating when raising the load
C. lowering the load at constant speed
D. raising the load at constant speed
[单项选择]Rotating flyweights acting against spring pressure make a simple type of （）.
A. governor
B. safety valve
C. reducing valve
D. feed water regulator
[单项选择]The direct acting mechanical governor used with some small diesel engines, controls fuel flow to the engine by（）
A. governor flyweight action on a pilot valve which controls fuel injection
B. governor flyweight motion acting on fuel controls through suitable linkage
C. positioning a butterfly valve in the fuel delivery system positioning
D. a servomotor piston attached to the fuel controls
[名词解释]Single Dimension Array
[单项选择]The result of two forces acting in opposite directions and along parallel lines，is an example of what type of stress?（）
A. Tensile
B. Compression
C. Shear
D. Strain
[单项选择]Tensile stress is a result of two forces acting in（）.
A. opposite directions on the same line，tending to pull the material apart
B. opposite directions on the same line，tending to compress the object
C. opposite directions along parallel lines
D. the same direction along parallel lines
[单项选择]Which of the items listed causes a direct acting mechanical governor to operate the engine fuel control linkage?（）
A. Hydraulic oil pressure
B. Servomotor action
C. Flyweight centrifugal force
D. Relay motion
[多项选择]You create a Web Form. The Web Form contains two Web Parts named CustomerPart and OrdersPart. CustomerPart contains a drop-down list of customers. OrdersPart contains a list of orders that a customer has placed. You need to create a static connection between CustomerPart and OrdersPart. When a user selects a customer from CustomerPart, OrdersPart must update. Which four actions should you perform? （）
A. Add the ConnectionProvider attribute to OrdersPart.
B. Add the ConnectionProvider attribute to CustomerPart.
C. Add the ConnectionConsumer attribute to CustomerPart.
D. Add the ConnectionConsumer attribute to OrdersPart.
E. Add OrdersPart and CustomerPart to the WebParts directory.
F. Add OrdersPart and CustomerPart to the App_Code directory.
G. Declare the connections within a StaticConnections subtag of a WebPartZone class.
H. Declare the connections within a StaticConnections subtag of a WebPartManager class.
I. Define an interface specifying the methods and properties that are shared between the Web Parts.
[单项选择] You are creating a Web Form. The Web Form allows users to rename or delete products in a list. You create a DataTable named dtProducts that is bound to a GridView. DataTable has the following four rows. dtProducts. Rows(0)("ProductName") = "Soap"dtProducts. Rows(1)("ProductName") = "Book"dtProducts. Rows(2)("ProductName") = "Computer"dtProducts. Rows(3)("ProductName") = "Spoon"dtProducts. AcceptChanges（ ） The user utilizes a Web Form to delete the first product. You need to set the RowStateFilter property of the DataTables DefaultView so that only products that have not been deleted are shown. To which value should you set the DataTabless DefaultView.RowStateFilter?（）
A. Data View Row State.Modified Original
B. Data View Row State.Modified Current
C. Data View Row State.Current Rows
D. Data View Row State.Added
[单项选择]You create a Web Form. The Web Form uses the FormView control to enable a user to edit a record in the database. When the user clicks the Update button on the FormView control, the application must validate that the user has entered data in all of the fields. You need to ensure that the Web Form does not update if the user has not entered data in all of the fields. Which code segment should you use? （）
A. Protected Sub FormView1_ItemUpdating(ByVal sender As Object, _ ByVal e As System.Web.UI.WebControls.FormViewUpdateEventArgs) _ Handles FormView1.ItemUpdating Dim entry As DictionaryEntry For Each entry In e.Keys If entry.Value.ToString() = System.String.Empty Then e.Cancel = True Return End If Next entryEnd Sub
B. Protected Sub FormView1_ItemUpdated(ByVal sender As Object, _ ByVal e As System.Web.UI.WebControls.FormViewUpdatedEventArgs) _ Handles FormView1.ItemUpdated Dim entry As DictionaryEntry For Each entry In e.NewValues If entry.Value.Equals("") Then e.KeepInEditMode = True Return End If Next entryEnd Sub
C. Protected Sub FormView1_ItemUpdating(ByVal sender As Object, _ ByVal e As System.Web.UI.WebControls.FormViewUpdateEventArgs) _ Handles FormView1.ItemUpdating Dim entry As DictionaryEntry For Each entry In e.NewValues If entry.Value.Equals("") Then e.Cancel = True Return End If Next entryEnd Sub
D. Protected Sub FormView1_ItemUpdated(ByVal sender As Object, _ ByVal e As System.Web.UI.WebControls.FormViewUpdatedEventArgs) _ Handles FormView1.ItemUpdated Dim entry As DictionaryEntry For Each entry In e.Keys If entry.Value.ToString() = System.String.Empty Then e.KeepInEditMode = True Return End If Next entryEnd Sub
[单项选择]You create a Web Form. The Web Form allows users to calculate values and display the results in a label named lblResults. You need to capture all unhandled exceptions on the Web Form through the Error event. The Error event must capture each unhandled exception and display it on the Web Form. Which code segment should you use? （）
A. Protected Sub Page_Error(ByVal sender As Object, _ ByVal e As System.EventArgs) Handles Me.Error lblResults.Text = e.ToString() e = NothingEnd Sub
B. Protected Sub Page_Error(ByVal sender As Object, _ ByVal e As System.EventArgs) Handles Me.Error lblResults.Text = Server.GetLastError().ToString() Server.ClearError()End Sub
C. Protected Sub Page_Error(ByVal sender As Object, _ ByVal e As System.EventArgs) Handles Me.Error Response.Write(e.ToString()) e = NothingEnd Sub
D. Protected Sub Page_Error(ByVal sender As Object, _ ByVal e As System.EventArgs) Handles Me.Error Response.Write(Server.GetLastError().ToString()) Server.ClearError()End Sub
[单项选择]A vessel behaves as if all of its weight is acting downward through the center of gravity，and all its support is acting upward through the（）.
A. keel
B. center of buoyancy
C. tipping center
D. amidships section
