About labels - 

When there is 

clear association is needed between label and fields,

fast completion time is needed

and you do not have much space, 

Would you use, 

TOP, LEFT or RIGHT aligned labels?

Manoeuvring Areas and Movement Areas are parts of an aerodrome. Which of the following options is correct?

Which is the better user journey, 

A:

1. Search for an available booking and select it
2. Lookup a customer in the database to see if they exist
3. Then create a new customer account if needed
4. Wait for the user to verify their email account
5. Refresh the page
6. Go back and find the booking again to re-select it
7. Proceed to a checkout screen

OR

B:

1. Search for an available booking and select it
2. Enter an email address, which will either:

   1. Automatically use the existing clients details, or
   2. Create a new client with that email address

3. Proceed to a checkout screen

 Should you be using a sans serif font on your website

How long should an error message stay on the screen?