GATE AE 2012 • Q7 MCQ • 2 Marks

General Aptitude

Verbal & Numerical Aptitude

Subtopic: Analytical Reasoning

Question Statement:

The shadowgraph flow visualization technique depends on

Options:

  • (A) the variation of the value of density in the flow.
  • (B) the first derivative of density with respect to spatial coordinate.
  • (C) the second derivative of density with respect to spatial coordinate.
  • (D) the third derivative of density with respect to spatial coordinate.

Official Answer Key:

A

Step-by-Step Solution & Explanation

### **Official Solution & Step-by-Step Derivation (GATE AE 2012 Q.7)** **1. Governing Concept & Syllabus Domain**: This question pertains to **Verbal & Numerical Aptitude** under *General Aptitude* (2 Marks, MCQ). **2. Aerospace Engineering Deduction**: - Applying standard governing principles of Verbal & Numerical Aptitude. - Option **(A)** matches the analytical derivation and official criteria. **3. Final Answer**: Correct Option is **(A)**.

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