Unreal Engine Blueprints Blueprint Physics and Collision

Question 1

Which Blueprint node enables physics simulation on a Static Mesh Component at runtime?

Accepted Answer

Set Simulate Physics

Answer

Set Simulate Physics is the correct node used to enable or disable physics simulation on a primitive component like a Static Mesh Component.

Question 2

Which collision response setting must be set to 'Block' for the WorldStatic channel so a character can walk on a floor?

Accepted Answer

WorldStatic

Answer

The WorldStatic channel must be set to Block so the Character Movement Component recognizes the floor and prevents the character from falling through it.

Question 3

Which Blueprint event fires when two actors with 'Generate Overlap Events' enabled begin touching each other?

Accepted Answer

On Component Begin Overlap

Answer

On Component Begin Overlap fires when a component starts overlapping another actor, provided both have 'Generate Overlap Events' enabled.

Question 4

What is the key difference between the 'Add Impulse' and 'Add Force' Blueprint nodes?

Accepted Answer

Add Impulse applies an instantaneous push; Add Force applies a continuous force each frame

Answer

Add Impulse applies an instantaneous burst of force in a single frame, while Add Force applies a continuous force that should be called every tick to sustain acceleration.

Question 5

Which collision preset is best suited for an invisible volume that should block all actors from passing through?

Accepted Answer

BlockAll

Answer

The BlockAll preset sets all collision channels to Block, making the volume act as an impassable barrier for all actors.

Unreal Engine Blueprints Practice Test

Unreal Engine Blueprints Practice Test

Unreal Engine Blueprints Blueprint Physics and Collision