Question Bank • QB_EXP_GA_CRG_003 MSQ • 2 Marks

Section 8: General Aptitude

Verbal: Critical Reasoning & Reading Comprehension

Subtopic: Inferring logical conclusions from short passage

Question Statement:

Read the passage: "Post-harvest storage losses in pulse grains in developing tropical nations often exceed $25\%$, driven predominantly by bruchid beetle (*Callosobruchus maculatus*) infestation and high ambient humidity. Hermetic storage bags with multi-layered impermeable polymer liners suppress beetle proliferation by naturally suffocating them through grain and insect respiration without requiring synthetic chemical fumigants." Which of the following statements can be LOGICALLY INFERRED from the passage?

Options:

  • (A) Hermetic bags create a modified low-oxygen, high-carbon-dioxide micro-atmosphere through metabolic respiration
  • (B) Bruchid beetles are an important biological factor contributing to tropical pulse storage losses
  • (C) Hermetic storage bags offer an eco-friendly pest control alternative that eliminates synthetic chemical fumigants
  • (D) Hermetic bags completely eliminate the need for proper grain drying prior to packaging

Answer Key:

A, B, C

Step-by-Step Solution & Explanation

1. Respiration consumes $\text{O}_2$ and generates $\text{CO}_2$ in a sealed bag, causing asphyxiation (A is directly inferable). 2. Passage states bruchids are a major driver of $25\%$ losses (B is directly stated). 3. Passage explicitly notes bags control pests without synthetic fumigants (C is directly stated). 4. Packaging wet grains in airtight hermetic bags causes fungal molding and souring; drying is still required (D is false).
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