Unreal Engine Blueprints Blueprint Flow Control 3

Question 1

What does the 'Multi Gate' node do differently from a Sequence node?

Accepted Answer

It fires one output pin per execution call, cycling through them

Answer

Multi Gate fires a single output pin each time it receives execution and advances to the next pin on subsequent calls, with optional random or looping behavior.

Question 2

In Blueprint, what is a 'Retriggerable Delay' and how does it differ from a standard Delay?

Accepted Answer

Retriggerable Delay restarts its timer each time it is triggered, while Delay ignores new triggers until complete

Answer

A Retriggerable Delay resets and restarts its countdown whenever a new trigger arrives, whereas a standard Delay ignores re-triggers until it finishes.

Question 3

Which Blueprint node allows you to pause execution for a set number of seconds without blocking the game thread?

Accepted Answer

Delay

Answer

The Delay node pauses Blueprint execution for the specified duration using a timer, allowing the game thread to continue running normally.

Question 4

What does the 'Is Valid' macro typically check in Blueprint flow control?

Accepted Answer

Whether an object reference is non-null and points to a living object

Answer

Is Valid checks that an object reference is not null and that the referenced object has not been garbage collected or destroyed.

Question 5

When a 'Switch on Enum' node is used and the incoming enum value does not match any listed pin, which pin fires?

Accepted Answer

Default

Answer

The Default output pin on a Switch on Enum node fires when no explicit case matches the incoming value.

Unreal Engine Blueprints Practice Test

Unreal Engine Blueprints Practice Test

Unreal Engine Blueprints Blueprint Flow Control 3