Concept: Self-appraisal is a process in which an employee evaluates his or her own performance, achievements, strengths, weaknesses and areas needing improvement.
Step 1: Understanding self-appraisal questions.
Self-appraisal questions generally focus on the current work period. They ask about performance, achievements, skills, strengths, weaknesses and future improvement.
\[
\text{Self-Appraisal} \Rightarrow \text{Current performance evaluation}
\]
Step 2: Checking the first three options.
The question about significant accomplishments is related to performance evaluation.
The question about areas of strength is related to self-assessment.
The question about areas needing improvement is also related to self-appraisal.
\[
A,\ B,\ C \Rightarrow \text{Related to self-appraisal}
\]
Step 3: Finding the unrelated question.
The question “Which organisations did you work before?” is related to employment history or biodata, not self-appraisal of present performance.
\[
\text{Previous organisations} \neq \text{Self-appraisal question}
\]
Therefore, the correct answer is option (D).