Blender 2

1. Where can you change editor type?
By left-clicking the button on the far left of the editor's header.

2. What does the 3D View editor show?
The three-dimensional view of your model or scene.

3. What does the Outliner editor show?
A hierarchical view of all the objects in your scene.

4. What does the Info header show?
The main menu and information about scene.

5. What are the animation Editors?
Timeline, Graph Editor, Dope Sheet and NLA Editor.

6. What does the Timeline editor offer?
A convenient way to quickly jump from one moment in your animation to another as well as play back the animation.

7. What does the Graph Editor show?
A graphical representation of animatable attributes in your scene as they change over time.

8. What is the Dope Sheet used for?
Creating and adjusting animation using actions or keying sets.

9. What do keying sets allow for?
Ability to group together a bunch of different animatable attributes.

10. What does the NLA Editor allow for?
Mix pre-animated actions on a single character.

11. What is the UV/Image Editor used mostly for?
Loading textures and adjusting UV coordinates.

12. What does the Video Sequence Editor (VSE) allow for?
Editing video, such as stringing a sequence of scenes together.

13. What is the Logic Editor?
A game engine integrated with Blender.

14. How is the Properties editor organized?
In subsections.

15. What does the Render subsection allow for?
Setting attributes for the final output.

16. What does the Scene subsection allow for?
The active camera, units of measurement, and the strength of gravity if you're using simulated physics.

17. What does the Word subsection control?
The environment that your scene is built in.

18. What does the Object subsection offer?
Make changes that affect an object as it relates to the scene.

19. Name an area where Object Constraints subsection is important?
Animation.

20. Why would you want to use Modifiers subsection?
To simplify design, such as working on only one side and letting the Mirror do the other side.

21. How can you restore Blender's default settings?
By selecting Load Factory Settings from the File menu.

22. What are default screen presets?
3D View Full, Animation, Compositing, Default, Game Logic, Motion Tracking, Scripting, UV Editing, and Video Editing.

23. Which hotkeys can you use to cycle through the screens?
By pressing Ctrl and either left or right arrow.

24. What is orbiting?
Rotating the 3D world around a fixed point in space.

25. How do you orbit?
Middle-click anywhere in the 3D View and drag your mouse cursor around.

26. What is panning?
Same angle view but translated in space.

27. How is panning achieved?
By holding Shift while middle-clicking and dragging your mouse cursor in the 3D View.

28. What is zooming?
Moving the view closer or farther.

29. How can zooming be achieved?
Using the mouse's scroll wheel or using + and - on Numpad.

30. What is the orthographic view of a 3D scene?
A view where grid scale is same regardless of distance from the observer and parallel lines stay the same distance apart.

31. What is the perspective view of a 3D scene?
A view where grid scale decreases with distance from the observer and parallel lines seem to touch.

32. How can we toggle between perspective and orthographic view?
Using 5 on the Numpad. It is also possible to use the View menu in 3D View's header.

33. What is the Top view?
A view down the z-axis (-z). The x-axis increases going right and y-axis increases going up.

34. What hotkey brings the top view?
Numpad 7.

35. What is the Front view?
Looking in the y direction (+y). x increases rightwards and z increases upwards.

36. What hotkey brings the front view?
Numpad 1.

37. What is the Right view?
Looking down the x direction (-x). y increases rightwards and z increases upwards.

38. What hotkey brings the right view?
Numpad 1. 

39. What are hotkeys for the opposite view from Top, Front, and Right (that is Bottom, Back and Left)?
Pressing Ctrl while pressing Numpad 1, 3 or 7.

40. Which viewport shading is the default?
Solid is the default viewport shading type that Blender starts with.

41. How can you toggle to Wireframe shading?
Pressing Z toggles between Solid and Wireframe.

42. What is the Quad View?
A 3D View is split into four regions: top, front, and right orthographic views, along with a user perspective view.

43. How can you toggle into the Quad view?
Using the hotkey Ctrl+Alt+Q, or the View menu option with that name.

44. What hotkey can you use to toggle into the Properties region?
Pressing N.

45. What hotkey can you use to toggle into the Tool Shelf region?
Pressing T.

46. What hotkey brings the integrated search?
Spacebar.