GATE-ES SERIES
Environmental-microbiology

Pathogens

3 previous year questions.

Volume: 3 Ques
Yield: Medium

High-Yield Trend

1
2024
1
2023
1
2022

Chapter Questions
3 MCQs

01
PYQ 2022
medium
environmental-microbiology ID: gate-es-
A microbial culture with a specific growth rate of (per hour) is being grown in a continuous reactor at steady state with hydraulic retention time (HRT) of 24 hours. The reactor is subjected to a perturbation by reducing the HRT to 12 hours. The reactor recovers and comes to a new steady state with a specific growth rate of . Which one of the following statements is correct?
1

2

3

4

02
PYQ 2023
medium
environmental-microbiology ID: gate-es-

Kit Performance in an Outbreak
A researcher compiled the following information about the performance of a kit in an outbreak:

Infection StateKit Response
Disease (probability = 0.002)Positive response (probability = 0.98)
No DiseasePositive response (probability = 0.03)

The probability of detecting an infection for a positive result through the kit would be ______________________ (rounded off to three decimal places).

03
PYQ 2024
medium
environmental-microbiology ID: gate-es-
Tuberculosis is predominantly caused by ________.
1
Entamoeba histolytica
2
Salmonella typhi
3
Mycobacterium bovis
4
bacillus cereus

About Pathogens - GATE-ES

Pathogens is a vital chapter for GATE-ES aspirants. Mastering the concepts covered in this chapter is essential for securing a top rank.

By rigorously practicing the previous year questions associated with this chapter, you can identify high-yield topics, understand the examiner's perspective, and boost your confidence during the actual exam.

Frequently Asked Questions

Why focus on Pathogens PYQs?

Analyzing PYQs for this specific chapter reveals the most frequently tested concepts and the typical complexity of questions, allowing you to tailor your study plan efficiently.

How to best use this analysis?

Review the topic breakdown to see which sub-topics within Pathogens carry the most weight. Then, tackle the questions iteratively to solidify your understanding.