Answering the salary question poorly may eliminate you from consideration. Salary is a touchy subject and somewhat of a balancing act. If you answer too high it may create sticker shock and be a turn-off, or you could be viewed as a top notch candidate who must be deserving of the high price. On the other hand if you answer on the low side, the employer could consider you cheap with fewer qualifications, or they may view you as an attractive candidate because of the attractive price. It all depends.