Describe a time a supervisor, or someone with authority over you, requested that you perform a task you did not want to do.
How you handle this type of situation at work tells a lot about your conscientiousness and work habits. When a supervisor asks you to do something, he/she expects that you'll do it. It is certainly ok to ask questions or explain why you aren't able to do it, but blatantly telling a supervisor that you just don't want to do something is never a good idea without solid reasoning. Try to think of a time when you didn't particularly want to do a task, but you did it anyway because you had been asked.
"I can think of one time that my supervisor asked me to sweep the shop floor. It wasn't something I was particularly excited about doing, but I also figured he must have a reason for asking me to do it since that was not generally something we did. I swept the floor, but I did ask him later if there had been an issue or some reason that he had asked me to do that task. He said that he had noticed some trip hazards and didn't want to wait until the end of the day for someone else to sweep it up. I was happy that he had noticed the safety issue and that we got it taken care of immediately."