A survey Answer cells' width cannot be controlled but you can control the width of the topics cells. 

This article describes how to change the width of topic cells when using a Grid question with:

• a Table layout rendering mode or
• a Two statement table layout

 

Steps 

 

Step 1: Create a grid question with any of the following: 

• a table layout
• a flipped table layout
• a two statement layout rendering mode

 

 Step 2: Change Topic percentage

In the topic percentage text box enter a number between 1 and 100.

The column width will be relative to the screen resolution on which the interview will run.

Example: 

If you enter 50 for the topic percentage:

the topic column width will be 50% of the size of the table.