I had the same issues the first time around. The only way I know how to answer those types of questions is to conceptually understand which risk the question is asking about.
Would the situation affect a risk that the auditor will not detect a misstatement?
Would the situation affect a risk that Internal Controls will not detect a misstatement?
Would the situation affect an inherent risk that exists regardless of how strong internal controls are or what procedures the auditor performs?
That is how I worked through these problems…I do not know if this generalized approach is appropriate but it is how I was able to rationalize it to myself. I would strongly suggest spending $10 for CPAreviewforfree.com's AUD simulation package. It is $10 and it does a really great job of testing your knowledge of the vital topics. Work through them without using Authoritative Literature and see how well you know the material.
Good Luck!!!
AUD 73 (Aug 12) 77
BEC 66 71 (Nov 12) 80
REG 54 81 (May 13) 81
FAR 63 (Dec 13) 75 TEXAS