CLAD CLAD User Interface & Event Handling 3

Question 1

In LabVIEW, what is the difference between a 'Notify' event and a 'Filter' event?

Accepted Answer

Filter events occur before the action and can be discarded; notify events occur after the action is complete

Answer

Notify events can be discarded; filter events cannot

Answer

Notify events are user-defined; filter events are system-defined

Answer

There is no difference

Question 2

Which LabVIEW front panel element is best suited for selecting one option from a small, fixed list displayed as buttons?

Accepted Answer

Ring control

Answer

String control

Answer

List Box

Answer

Tab control

Question 3

What is the function of the 'Stacked Sequence Structure' in LabVIEW user interface design?

Accepted Answer

Executes frames sequentially, one at a time, and shares data through sequence locals

Answer

Executes frames in parallel

Answer

Groups front panel controls visually

Answer

Handles timed events

Question 4

How can you make a LabVIEW subVI's front panel appear when it is called from another VI?

Accepted Answer

Enable 'Show Front Panel When Called' in the VI's properties

Answer

Set the VI's execution to 'Reentrant'

Answer

Use the Open VI Reference function

Answer

Embed the subVI as a control

Question 5

What is a Tab Control in LabVIEW used for?

Accepted Answer

Organizing front panel controls into multiple pages to reduce visual clutter

Answer

Managing file tabs

Answer

Controlling tab stops for keyboard navigation

Answer

Switching between block diagram pages

Question 6

In the Event Structure, what is the purpose of the 'Timeout' event case?

Accepted Answer

It executes when no other event occurs within the specified timeout duration

Answer

It fires when the CPU usage exceeds a threshold

Answer

It handles hardware timeout errors

Answer

It limits how long a loop runs