What type of questions can be added using the form builder?

Following question types are allowed at the moment - 

Import OKRs

Not a question type, but it helps you to import OKRs of a team member in the review form. While creating a template, if admin adds this import OKRs option, reviewer of the form will have an opportunity to import team member's OKRs in that form and weigh them so both team member and reviewer and grade/rate those objectives. 

Section start 

Again, not a question type, but it certainly helps you in designing a structured questionnaire with weighted sections where you can make use of all other question available types. You can make these sections scorable and get section wise score on different values, skills, etc. It has 4 customizable settings - Title & Section Details, scores & weightage.

Read How to create section wise weighted forms? for more details.

Single line text 

Use this question when the expected answer is short. It has 4 customizable settings - Question, Default Value, Instructions, Mandatory.

Paragraph text

Use this type when the question should be answered in at least a couple of lines. It has the same 4 customizable settings as that of the single line text - Question, Default Value, Instructions, Mandatory.

Multiple choice

Use this type when the user is supposed to select one of the multiple options available. It has the following customizable settings - Question, Choices, Instructions, Mandatory, Score & Weightage, Add comment box. 

Checkbox

Use this type when there are more than one correct answers possible. Its customizable parameters are - Question, Choices, Instructions, Mandatory, Add comment box.

Star ratings

Use this type when you want a rating type of answer. Each of the stars has an associated label that is displayed while filling up the form. It has the following customizable settings - Question, Choices, Instructions, Mandatory, Score & Weightage, Add comment box.

Drop-down

Use this type when the list of possible options is to be displayed in the form of a drop-down. Customisable settings include - Question, Choices, Instructions, Mandatory, Add comment box.

Yes/No

When the intended answer has to be either Yes or No, use this question type. Possibility to customize include Question, Instructions, Mandatory & Add comment box.

Opinion scale

When the use case requires answers on a scale or range of values, use this question type. One can customize following parameters - Question, Range of numbers, Labels for the extreme values, Instructions, Mandatory, Score & Weightage, Add Comment Box & Start scale at one (by default the range starts from 0, check this to start it from 1 instead).